Menyimpan Username dan Password Dengan S10 Password Vault

S10 Password Vault merupakan password manager yang dapat Anda gunakan untuk menyimpan informasi username dan password dengan aman. Dengan menggunakan software gratis ini Anda tidak perlu lagi mengingat semua username dan password untuk banyak akun web yang Anda miliki, misalnya akun email yahoo, gmail, facebook, friendster, blog, dan sebagainya.
Tampilan dari freeware ini cukup simpel, setidaknya jika dibandingkan dengan Password Container.
Sebelum menggunakan S10 Password Vault ini pertama-tama Anda harus membuat master password terlebih dahulu.

Secara default akun pada S10 Password Vault terdiri dari beberapa kategori, yaitu Banking, Email, Shopping, Travel, Websites, dan Work. Untuk menambah kategori baru, Anda bisa melakukannya dengan mengklik kanan dan pilih menu New Folder.

Untuk membuat akun baru, pertama pilih kategori akun. Setelah itu klik kanan dan pilih menu New Account.

Salah satu fitur yang cukup menarik dari S10 Password Vault adalah Auto-type commands. Dengan fitur tersebut S10 Password Vault akan menuliskan username dan password secara otomatis pada situs yang sedang Anda kunjungi. Untuk mengaktifkan Auto-type commands Anda bisa menekan tombol Ctrl + Alt + L.

Jika Anda tertarik untuk mencoba S10 Password Vault , Anda bisa download di http://www.s10soft.com

Proxy – Untuk Sharing Internet

Teknik proxy adalah teknik yang standar untuk akses Internet secara bersama-sama oleh beberapa komputer sekaligus dalam sebuah Local Area Network (LAN) melalui sebuah modem atau sebuah saluran komunikasi. Istilah Proxy sendiri banyak dikenal / digunakan terutama di dunia / kalangan diplomatik. Secara sederhana proxy adalah seseorang / lembaga yang bertindak sebagai perantara atau atas nama dari orang lain / lembaga / negara lain.
Teknik ini dikenal dengan beberapa nama yang ada di pasaran, misalnya:
Internet Connection Sharing (ICS) – istilah ini digunakan oleh Microsoft pada Windows-nya.
Proxy Server – ini biasanya berupa software tambahan yang dipasang di komputer yang bertindak sebagai perantara.
Internet Sharing Server (ISS) – biasanya berupa hardware berdiri sendiri lengkap dengan modem, hub dan software proxy di dalamnya.
Network Address Translation (NAT) – istilah lain yang digunakan untuk software proxy server.
IP Masquerade – teknik yang digunakan di software NAT / Proxy server untuk melakukan proses proxy.
Mengapa teknik proxy menjadi penting untuk share akses Internet dari sebuah LAN secara bersama-sama? Sebagai gambaran umum, dalam sebuah jaringan komputer – termasuk Internet, semua komponen jaringan di identifikasi dengan sebuah nomor (di Internet dikenal sebagai alamat Internet Protokol, alamat IP, IP address). Mengapa digunakan nomor? Karena penggunaan nomor IP akan memudahkan proses route & penyampaian data – dibandingkan kalau menggunakan nama yang tidak ada aturannya. Kira-kira secara konsep mirip dengan pola yang dipakai di nomor telepon.
Nah sialnya, (1) nomor IP ini jumlah-nya terbatas dan (2) seringkali kita tidak menginginkan orang untuk mengetahui dari komputer mana / jaringan mana kita mengakses Internet agar tidak terbuka untuk serangan para cracker dari jaringan Internet yang sifatnya publik.
Berdasarkan dua (2) alasan utama di atas, maka dikembangkan konsep private network, jaringan private atau kemudian dikenal dengan IntraNet (sebagai lawan dari Internet). Jaringan IntraNet ini yang kemudian menjadi basis bagi jaringan di kompleks perkantoran, pabrik, kampus, Warung Internet (WARNET) dsb. Secara teknologi tidak ada bedanya antara IntraNet & Internet, beda yang significant adalah alamat IP yang digunakan. Dalam kesepakatan Internet, sebuah Intanet (jaringan private) dapat menggunakan alamat IP dalam daerah 192.168.x.x atau 10.x.x.x. IP 192.168 & 10 sama sekali tidak digunakan oleh Internet karena memang dialokasikan untuk keperluan IntraNet saja.
Proses pengkaitan ke dua jenis jaringan yang berbeda ini dilakukan secara sederhana melalui sebuah komputer atau alat yang menjalankan software proxy di atas. Jadi pada komputer yang berfungsi sebagai perantara ini, selalu akan mempunyai dua (2) interface (antar muka), biasanya satu berupa modem untuk menyambung ke jaringan Internet, dan sebuah Ethernet card untuk menyambung ke jaringan IntraNet yang sifarnya private.
Untuk menghubungkan ke dua jaringan yang berbeda ini, yaitu Internet & IntraNet, perlu dilakukan translasi alamat / IP address. Teknik proxy / Network Address Translation sendiri sebetulnya sederhana dengan menggunakan tabel delapan (8) kolom, yang berisi informasi:
Alamat IP workstation yang meminta hubungan.
Port aplikasi workstation yang meminta hubungan.
Alamat IP proxy server yang menerima permintaan proxy.
Port aplikasi proxy server yang menerima permintaan proxy.
Alamat IP proxy server yang meneruskan permintaan proxy.
Port aplikasi proxy server yang meneruskan permintaan proxy.
Alamat IP server tujuan.
Port aplikasi server tujuan.
Dengan cara ini, paket dengan informasi pasangan alamat IP:port dari workstation user yang meminta servis pasangan alamat IP:port server tujuan bisa diganti agar server tujuan menyangka permintaan servis tersebut datangnya dari pasangan alamat IP:port proxy server yang meneruskan permintaan proxy. Server tujuan akan mengirimkan semua data yang diminta ke pasangan alamat IP:port proxy server yang meneruskan permintaan proxy – yang kemudian meneruskannya lagi ke pasangan alamat IP:port workstation pengguna yang menggunakan alamat IP 192.168.x.x.
Jika kita lihat secara sepintas, sebetulnya teknik proxy ini merupakan teknik paling sederhana dari sebuah firewall. Kenapa? Dengan teknik proxy, server tujuan tidak mengetahui bahwa alamat komputer yang meminta data tersebut sebetulnya berada di balik proxy server & menggunakan alamat IP private 192.168.x.x.

Faktor Eksternal penyebab sistem komputer lambat

Selain faktor internal yang telah disebutkan sebelumnya, terdapat pula faktor eksternal yang dapat menghambat sistem kerja komputer diantaranya:
Tegangan listrik yang tidak stabil
Listrik merupakan faktor utama pemicu lambatnya komputer dari tegangan yang tidak stabil. Setiap komputer memerlukan adanya aliran listrik yang memadai agar dapat berjalan sebagaimana mestinya. Apabila tegangan listrik rendah, komputer tidak dapat beroperasi dengan baik. Begitu pula sebaliknya, jika tegangan listrik terlalu tinggi mengakibatkan komputer akan cepat panas dan mempengaruhi komponen penting dalam komputer.
Ada kalanya tegangan listrik yang ada di rumah kita tidak berjalan stabil alias naik turun. Hal tersebut bisa ditimbulkan oleh penggunaan listrik yang bersama-sama. Misal: menghidupkan televisi, mesin air, lemari es (kulkas), dan komputer secara bersama-sama. Suatu saat mematikan mesin air yang tidak digunakan. Nah, jika kondisinya seperti itu tegangan akan mengalami perubahan naik-turun dan inilah faktor penyebab komputer dan monitor menjadi rusak.
Untuk menghindari hal ini, sebaiknya menggunakan UPS/stabilizer agar ketika listrik mati secara mendadak masih ada aliran listrik dan dapat melakukan shutdown sesuai prosedur.
Lingkungan yang berdebu
Debu dapat masuk ke dalam komputer tanpa disadari karena masuk melalui ventilasi cashing komputer yang kecil. Dan proses masuknya debu ke dalam komputer sangat lama, memerlukan waktu minimal tiga bulan tergantung lingkungan rumah kita. Meskipun lingkungan rumah sudah bebas dari debu, jangan menganggap komputer juga terjamin bersih dari debu.
Debu yang menempel pada komponen komputer dapat mengakibatkan sistem kerja komputer akan terhambat. Bersihkan menggunakan kuas yang lembut, jangan menggunakan kemoceng karena bulu-bulunya akan rontok sehingga malah memperparah keadaan.
Komputer yang bekerja makin lambat perlu diidentifikasi sedini mungkin agar faktor-faktor penyebabnya dapat diniminalisasi. Oleh karena setiap hari bergelut dengan komputer, sedikitnya harus dapat menangani sendiri jika komputer mengalami masalah. Periksa dulu apa penyebab komputer tersebut menjadi lambat, jika sudah ditemukan faktor pemicunya segera atasi sendiri sebelum meminta bantuan orang lain.

Learning More About Notebook Computers

A notebook computer is a portable personal computer that can be carried along and used almost anywhere, much like a notebook. The notebook computer typically weighs about 3 kilograms (6.6 pounds) and is small enough to fit into a briefcase. The notebook computer usually has all the functionality of a desktop, but is less powerful, more expensive, and greater portability. The first notebook computer available commercially was introduced to the public in 1981 and was named the Osborne 1. This notebook computer was understandably bulkier than the ones we get to see these days. Nevertheless, this revolutionary notebook computer -- which did not run on battery power and had to be plugged in for AC power -- took the business world by storm because of its portability, a feature that is notably absent in the heftier desktops. Then came the Compaq Portable first made public in 1983 and also ran on AC power rather than batteries. This first-ever IBM-compatible notebook computer proved to better than the IBM's own Portable Computer that was introduced a year later. The GRiD Compass 1101, released in 1982, was a notebook computer in the true sense of the term. The brainchild of William Moggridge, this notebook computer had the typical clamshell design -- where the screen folds and shuts against the keyboard -- that is now practically the industry standard. This notebook computer was not IBM-compatible, ran on batteries and had a prohibitively high price tag. As one may guess, it was used by the specific few -- mainly the military and astronauts. The Sharp PC-5000 and the Gavilan notebook computer, appearing in 1984, are also worthy of special mention. As a matter of fact, the Gavilan was the first notebook computer that was promoted as a laptop and had a cursor control device resembling a touch pad. Both had LCD screens and clamshell cases. The notebook computer called Kyocera Kyotronic, first introduced in 1983, powered by AA batteries, was a huge commercial success largely because of its portability, battery life and low price. The first true IBM-compatible notebook computer was the IBM PC Convertible, introduced in 1986 -- followed by Toshiba T1000 and T1200 in the following year. In 1989, Apple introduced the Macintosh Portable notebook computer. From 1991 on, innovations initiated by the PowerBook series of Apple became standard features in the modern notebook computer. These include built-in features like touch pad, palm rest, Ethernet networking, trackball, and 256-color displays. Then followed the Thinkpad series of IBM, which was a very popular notebook computer. Now almost an essential gadget in the business world, the notebook computer is here to stay.

Harmful Viruses And Other Malwares In Computers

A computer virus is often termed ‘malware’ because it is a type of malicious software. Other types of malware are worms and Trojans. Let’s take a look at each of these below. Viruses A virus usually arrives onto your computer hidden inside of another program which is often delivered by email attachments. It derives its name from the fact that just like a living virus, it needs a host to live and breed on. When you run the infected host program, you then launch the virus into the memory of your computer where it sets up home and waits to go about it’s intended function of destroying your files and infecting other computers. Once the virus has infected your computer it waits for the programmed trigger to signal it into action. The trigger coded into the virus and can be anything from a specific date to a set number of times it has replicated itself. Once triggered, it goes about the destruction it was designed for. It may be a simple deletion of files or pranks. It could also be programmed to destroy your operating system. Viruses are commonly spread on email attachments. This is why you should never open an attachment unless you know who it was from. The problem is that sometimes it can appear as if a virus is just an attachment from someone in your address book, so always be on alert when you get an email with an attachment on it particularly if it is an .exe file. Worms Worms work a lot like viruses do. They are also self replicating and can reproduce so fast that they can overload and shut down entire systems. The difference between a virus and a worm is that the worm doesn’t require a host to live on. A worm is stand alone malware. They also usually hitch their way onto your computer through email but don’t need an attachment to ride on. Trojans aka Trojan horses Trojans take their name from the classic Greek story for they misrepresent themselves as well. They often pretend to be something they are not. Trojans are not self reproducing like worms and viruses but they can do just as much damage. They hide on other programs and record your keystrokes and steal passwords and credit card numbers. Fighting malware It is important to stay up to date with the latest methods being used to combat malware. Your computer can be destroyed by one of these nasty computer programs or your credit card and other personal information can be compromised. For starters it is a good idea to not open email attachments to reduce your risk of picking up a virus. Use a good virus detecting program and firewall to keep the pesky bugs out of your system.

How To Go About Finding Cheap Computers

Almost everyone knows what a computer is and how to use its basic functions. Some people have their own desktop computers or laptops. Those who do not own a computer may still be able to use one by renting or using the ones in public libraries. However, there are cheap computers that are now available in the market, so it is possible that everyone and their grandmothers will be able to afford it. Computers are really amazing. The technology has evolved so much through the years. A lot of things can be done with the newest models that were not possible on the machines which were the “top of the line” a few decades ago. Give or take a few years from now, the current computers will be phased out and replaced by a more stable, more feature-packed machine. A few years ago computers were very expensive. One unit of a desktop computer in 1998 cost about $1,600. That’s a lot. Fast forward to the present. The computers in 1998 are nothing compared to the models that we have now. The machines are faster, more durable, and capable of multitasking. Imagine doing so much in so little time! To top it all off, the cost is definitely worth the product. Nowadays, cheap computers are very easy to find. Promo packages as low as $300 are not impossible to find. In fact, they are all over! You might think that cheap computers are not as good as the high-end ones, but that is not the case. You get the same functionality, durability and technology at a very inexpensive price. But where do you find such cheap computers? Stores like Circuit City and Best Buy offer packages that are very inexpensive. However, there is a cheaper alternative – shop online! There are a lot of online stores that sell either promo packages or individual hardware parts for you to assemble. Of course, that is up to you. You purchase a machine that is tailored to your own needs. These days, owning a computer is essential. There isn’t any industry that does not make use of this technology. Computers aid in learning and working. The world is a much smaller place now because of computers and the internet. There are just countless of benefits you can get from one single machine. And it does not cost much. Cheap computers are now available online. That is functionality and information within your reach.

Computers And RSIs

Part of our everyday lives, computers have evolved from a tool at work to a personal calendar, a friendly network facilitator and a necessary guide. Although computers have transformed the way we see things and understand the world around us, because their use imposes physical and mental demands on their users, it leads to several health problems, like Repetitive Strain Injuries (RSIs), eye strain, neck and lower back pains and headaches. I do not about you, but when I bought a year ago my brand new laptop, I was extremely interested in reading everything included in the package in an effort to take good care of my precious new possession. One of the documents the producer have included in the printed materials I opened to read, was one that directed me to follow specific guidelines on how to effectively and safely use my portable PC. Perhaps I was very lucky, as I later discovered that only recently have manufacturers been forced to include such user guides, or began making an effort to overcome health related issues and complains by introducing ergonomic products and warning labels on some equipment. This is very important, as the designers' ability to understand that users need simple guidelines in order to be adequately informed of the risks involved and trained on proper body posture, monitor height, elbows distance from the body or recommended hours of use, can prevent computer users, even young, physically active individuals, from suffering in the future. Specifically, one has to be aware of the hazards of Repetitive Strain Injury (RSI) to the hands and arms resulting from inappropriate use of the computer's keyboard and mice. People in a variety of professions, like musicians or chiropractics, who repeatedly exercised pressure on their hands, shoulders, and arms, and have injured their tendons, muscles, and nerves, have been reported as the first cases of RSIs victims. Unfortunately, the list is increasing today, as more and more computer users request medical treatments in order to overcome the symptoms of RSIs on their hands, wrists, arms, shoulders and necks. Medical professionals and patients have reported that tightness, discomfort, stiffness, soreness or burning, numbness, and loss of coordination or strength are the most common symptoms linked to RSIs. Since this serious painful situation is far easier to prevent than to cure once contracted, it is important for people to be educated and understand when and how RSIs can occur leaving ex-computer users permanently disabled and unable to perform simple tasks, such as driving or even dressing, without requesting help. Ergonomic gadgets, palm rests, maintaining the right posture and overall good working habits can reduce the risks associated with computer use and help young users understand how important it is to be always on alert for RSIs symptoms.

FREE Electronics: Computers - iPhones - Plasma TV's...How To Get FREE?

I have always ignored sites on the internet that offered FREE electronics or other expensive items, Such as plasma tv's, laptops, i-phones, i-pods, digital cameras, Xbox 360 and other costly items. In my mind I thought it could not be true, there has to be a catch. More often than not I thought that the reason I am being offered this very attractive FREE offer is that it will be extremely difficult or impossible for me to get the Free gift that is promised. This lead to me doing some research on how and why many businesses are offering these expensive electronic gifts for FREE. I already understood that this was a form of advertising. What I did not understand was how beneficial this form of advertising or marketing is to everyone involved. Let me explain. Every day businesses spend millions of dollars advertising their product or services. Advertising is not a option for most businesses, they must advertise in order to survive. When a business spends money on advertising they are trying to get noticed by as many people as possible. You have to consider that even when their advertisment is seen by many people, only a small fraction of the people that see the advertisment become paying customers. This makes it very challenging and costly to get new customers. The incentive offer of giving away a FREE name brand expensive electronic gift helps to solve this problem. For Example, let's say that a business called (XYZ Books) needs more customers, in other words they want to sell more books. Since advertising is so expensive, they hire a marketing company not just to advertise for them, but to actually deliver to them paying customers and or customers to try them on a free trial basis. What makes this arrangement so good for (XYZ Books) is that instead of paying the marketing company just to advertise for them, which may not bring in any customers, (XYZ Books) pay them based on the actual customers they help them get. And many times this customer is trying (XYZ) Books on a free trial basis which is good for the customer because it gives them a opportunity to cancel within that FREE trial if they should choose to do so. In the mean time the marketing company has already acquired from the manufacterer or distributor an expensive FREE electronic item like a plasma tv, iPod, Xbox 360 etc...... Now this is where the fun begins. The marketing company offers the potential customer an expensive name-brand electronic gift for FREE if they would do Two things. (1) Make a purchase from (XYZ Books) or try them on a free trial basis. (2) Refer some people to do the same thing. Now, let us tie it all together. The customer want or would like to have an expensive electronic item like a laptop, plasma tv, etc.....So they make a purchase from (XYZ Books) or try them on a free trial basis. The customer refers some people to do the same thing, of course keep in mind they do not have to do try the same offers, they will be given a choice. There you have it! Everybody wins, (XYZ Books) gets more customers to try them. The marketing company is paid very well by (XYZ Books) for every customer that trys (XYZ Books). The customer now owns a name brand expensive electronic gift that would normally cost them hundreds of dollars.

Why Computers are Important in Businesses

Of all the disciplines, the business world is the most complicated. In fact, its principles and fundamental concepts of operation are applied or incorporated in other fields such as educational institutions, entertainment industry, technology and many more. Business, undeniably, is present in all aspects. Promoting and selling computers and other products of technology such as audio visual equipment is a form of business. This is just one among other connecting threads between business and computer technology. The Business and the Technology where computers and audio visual equipment belong coexist with each other. The business operations are not possible without computers, and computers are a product of business. Everything in the world involves business even if you see categories in several website directories or article submission sites in which technology is a separate entity from business. In the past, businesses were merely done manually. With the use of a pen and a paper, everything could get done. Any business operation process could be accomplished with the help of mind, pen and paper. This process, of course, is tedious to do. One would be stressed in computing anything that involves numbers. Computations such as the number of sales, the expenses, the returns on investments, the salary for employees and many other activity that needs computations had to be recorded with a paper and pen. Even the simple list of employees and tasks had to be done manually. This way of recording or activity to run a business is risky. Papers where your sensitive and important data are written are prone to damage and loss. Though computers are also prone in damages and data loss, they are still more reliable compared to the mentioned way which is primitive. With the advent of computers, you don't have to exhaust your brain in computing or your hand in recording anything. Computers have made the business operations easily accomplished. In general, it has made our life easier. Business operations today is not possible without computers. Anything in the world has to be done fast, especially the world of business. With the use of computers, one can add or subtract numbers for large amount of data. Even meeting with business partners can be done easily. The entrepreneurs have to options in discussing matters over the internet through instance messaging or through VoIP (Voice-over-Internet Protocol). VoIP enables the two or more people who are in different places to talk live over the internet. They don't need to spend much money in discussing business with partners of clients. If you're one of those entrepreneurs, you don't have to travel or spend a lot for long distance phone call. Everything is made cheaper with computers (and internet). Saving your bucks is one among the benefits of computers, aside from saving your time and energy. Computers is important not only in businesses but in all aspects of our life. Living in this era is not complete without this amazingly great machine. With computers, life is easy. Businesses are becoming more productive and easily put up and run. Our life is changed for better, and will never be the same again.

Macintosh Laptop Computers - Why Choose a Macintosh Laptop Over a PC?

For a lot of years, the preference between Macintosh Laptop Computers and their competition, the Personal Computer was decided upon by the available software. While most business oriented programs were only available on PC, with the graphic applications designed to work better on the Apple. Apple's decision to expand upon the use of the Intel processors, in their Computers, allowed for a rising number of these PC only applications to operate in the Apples. As part of the advance software and hardware, Windows will work on a Macintosh as well as the OSX operating system. The easy and simple interface of the OS X system, which is also used in their phones, has come a long way and with innovations like the multi-touch track pad being offered on some Macintosh Laptop Computers are rapidly winning over hard core PC users. Apple's ease of operation, reliability and many preloaded software programs are now taking the lead. Strong Points. The OS X Leopard operating system showcases your favorite desktop image and puts new file stack at your fingertips for a stunning, clutter free desktop. It's intuitive, with very few errors, is not affected by most viruses and offers the user an eye opening experience that is second to none. You don't use your Mac...You Experience It! You'll have no trouble running mind blowing graphics and you can also run Adobe suites along with Apples own programs. The newest member the Mac book Air is only 3/4 of an inch thick. Redesigned to give a streamlined look, light weight and easy too carry! And now offering new tools like: Boot camp, Time machine, spaces and Parental controls the rival the best.

Used Computers (Desktops/Laptops)– What To Look For?

Nowadays desktops and laptops are much more durable and dependable that they were just five years ago. Therefore, buying a used or refurbished computer is becoming more of a trend. Suppliers replace their computers on average every 6 months and companies frequently upgrade their equipment. Buying one of these used or refurbished computers can save you a lot of money while still using a quite up to date technology. This is even more relevant if you are not a heavy user (i.e. most of your time on a computer is spent online, you may use a few standard applications once in a while). Even modestly priced computers will more than suffice for these types of demand. Thinking about buying a used or refurbished desktop or laptop? Buying a computer is not at all an easy job, one has look get detailed information of the available computers of good and reputed brands. One must take into consideration the size, color, configurations, features etc… While your computer should correspond to your personality and lifestyle, you should always keep in mind the reputation of the brand in the market. Brand counts a lot; you can render good service by the manufacturer if your computer is damaged. Important handy Tips before buying a computer... * Verify if the brand is reputed and always buy a good reputed brand. Read about customer service experience for that specific computer issues * Check the warranty/guarantee of the computer (seek out computers which still have warranty/guarantee remaining) * Compare the price of the new model in the market with what price your buying your used computer, try to get the best bargain. i.e. a two year old computer should not be bought for more than half of its original price. * Check if the computer is outdated (if out of production it is difficult to get spare parts) * Is the operating system current (Windows Vista/Windows Xp). Earlier versions probably run slower (windows 2000) and would not be advisable unless your needs are limited (i.e. web surfing, Word...). In any event, stay away with computers running on Windows 98 (granted you don't find many anymore). Also be aware of Windows Vista. Many users are reverting back to XP and that is even more obvious in the corporate world. Why? Vista looks nice but doesn't bring many technical improvements; therefore IT managers are not willing to implement something new when what they have works just fine. Some domestic users just don't like the new way of navigation within the Vista Operating System. * Check if the configuration of the computer you are buying is good. * Check the speed of the processor. If possible start the computer and see how long it takes to fully turn on. If its slow just turning on, imagine the lack of speed once you start adding software.. Additional Tips for laptops * Is the battery life good? (search for the computers with a very good battery backup (2 hours minimum). * Check for the screen size of the computer your buying and see to it that it is not exceeding the Normal (normally the screen size should be between 15-17). Less than that generally translates in older computers and increases the chance of age failure. Once the screen breaks, you are often better of changing the whole computer. * Review the connectivity of the computer (Network, USB, Video, Audio…) look to it that it has a good connectivity including wireless * Check out the weight. Ensure the computer is light enough for you to carry (light 7pounds) Where to buy used computers: * Online auctions. Pro: Often offer the best prices. Cons: Cannot validate the accuracy of the described item. No warranty. Tip 1: Some companies will offer warranty for up to two years, the cost is about 12 of the purchase price. Tip2: Buy from sellers with great feedback, do not hesitate to contact the seller with questions prior to bidding * Online marketplaces: Pro: Set prices and quantities - Sometime warranty is available. Cons: Prices can vary a lot, do your homework * Craiglist.com Contacting sellers on Craiglist.com in your local area gives you a chance to meet with the owner and physically test the computer before the purchase Where to buy refurbished computers: Refurbished computers can be a great way to buy as they have warranties and are generally sold by manufacturers or companies affiliated with them. * Manufacturers websites will tell you how to buy directly from them or from their authorized sellers. Pros: Warranty, established companies. Cons: Prices are higher than regular auctions (you pay more for peace of mind) Buying a used or refurbished computer can be a great way to save money. If you use some of the advice discussed above you can avoid many pitfalls. One last thing concerning laptops, make sure you have a good bag to protect your computer from a fatal accident. Your bag should be big enough for a 17 inch screen computer as it is rapidly becoming the norm, you will probably change your computer within a few years, the bag you may keep a lot longer.

Beginner’s Guide to Computers – Learning All About RAM

While your computer processes information, it requires data to work on. This data needs to be stored in the computer because the computers refers to its memory (data storage) when required. Some data might be required on a regular basis and some might be required for say a particular process only. Therefore depending on the type of data, the computer stores it in different types of memory – the long term or short term. Long term memory inside the computer is in the form of ROM (Read Only Memory – a storage through which data can only be accessed and cannot be edited or deleted; this type of memory is used for storing important system files that should never be altered) or in the for of CDs, DVDs etc. (as the data entered remains even when the computer is turned off. Short term memory of a computer is like the assisting storage space where that computer can store data that needs to be processed, work on it and produce results. This is like the computers rough space. The data stored in the short term memory or the Random Access Memory (RAM) vanishes when the computer is turned off. Since every program work on uses RAM, the more the RAM the better the efficiency of your computer. More RAM assists in loading larger applications in the computer or working on more programs at a time. RAM capacity is measured in terms of MB (Megabytes), with a typical computer consisting of 64 MB or 128 MB. The RAM of your computer can be upgraded to 256 MB, 512 MB or 1 GB, given your system can support it. RAM – different types and some more jargon explained Most computers are equipped with DRAM (Dynamic RAM). As soon as the power is turned off or the computer is shut down the data in the DRAM vanishes. Then there is the SRAM (static RAM), which is larger than DRAM and is not refreshed like DRAM. However, on power turn off even this memory is lost. Since SRAMs and DRAMs are highly volatile, many new computers are equipped with a newer memory version, the flash memory. Flash memory is the memory chip that doubles up as the hard drive for your computer. Random Access Memory – the road ahead The big challenge for computer manufacturers and research scientists is to develop a non volatile RAM. There have been some developments like Nantero’s Nanotube with 10 GB memory but a more practical version for common PCs remains awaited.

Best Registry Cleaner For Fixing Slow Running Computers

Whenever computer users using Windows Operating System face problems of slow booting or sudden crash the reasons may be in the registry system. Replacement or upgrading may easily be dispensed by cleaning or repairing the registry. Registry cleaning is one of the most efficient methods used to fix a slow running computer. Registry Basics - Main task that the registry accomplishes for the computer system is to keep track of all settings as well as the values relating to the operating systems. Besides this, it also maintains the programs, types of the documents, profiles of users, hardware information and port use track. All incoming as well as outgoing activities of the computer are recorded in the register and they are often retrieved to fix computer errors. Periodical Registry Maintenance - Like all other parts, your system periodical maintenance is necessary for the registry. A good step in this regard is using the best registry cleaners. Using such tools, you can fix corrupt registry and fix slow computers. Slowness, data loss, and response failure can be easily addressed with such registry repair and maintenance. Consequent to such cleaning the computer starts running smoothly all over again. Overloading May Cut Down Efficiency - Smooth functioning of the computer largely depends on the efficiency of its registry system. Registry stores all the frequently asked information, data as well as files that constitutes the personal setting for the user. An important task accomplished by registry system is organization and structuring of data. It determines the placement of data in the system and starts running as soon as you boot the system. Apart from all these the drivers for running software are also stored there. Frequent use however leaves back useless files and data overloading the registry that could make it inconsistent. Periodical use of registry cleaner tool could address these issues effectively helping you to fix corrupt registry. Best Registry Cleaner Is Your Solution to the Problem - Use of best registry cleaner can easily address the problems of unclean registry or data clogging there. Task that the cleaner accomplishes is to scan the entire registry system and fix corrupt registry. Consequent upon scanning the cleaner deletes unnecessary duplicate files defragging the memory as well as helping proper data organization. All companions of the deleted file, software or applications are automatically deleted as well. Removing Unwanted Applications with Registry Cleaner - More often than not the anti-virus loaded in the computer may not be able to detect or remove malware. This is one task that can be easily and conveniently accomplished using registry cleaner. Removing malware it helps fix computer errors. In result the overall performance of the computer also improves. Learning about Registry Problems - Too slow computers inconveniencing the users are the ones that normally develop the registry problems. User could easily get frustrated with recurrence of the problems of slowness, system crash or hanging. These problems could be well addressed using the registry repair tools or cleaners. However before their use you may like to learn the status of your registry system. In that case availing the benefits of free registry scan provided by quality providers could be your effective solution. Running a slow computer could be highly irritating especially when you have some important tasks to perform. Registry repair and cleaning is one of the fail-proof methods that ensure improvement of your computer performances.

Types Of Notebook Computers

Notebook, notebook computer, laptop, and laptop computer are different terms for a small computer, which is mobile, and weighing about 1 to 6 kg or 2.2 to 18 pounds, depending upon the model. In 1979-1980, Bill Moggridge of GRiD Systems Corp. designed one of the first laptops and named it as the GRiD Compass 1101. It featured the clamshell design where the flat display folded shut on the keyboard. In May 1983, Gavilan Computer Corp. introduced and first marketed as a laptop, known as Gavilan SC. About this same time, Sharp Corp.Ltd., announced their laptop Sharp PC-5000.

In 1989, Compaq introduced Compaq LTE, which was a laptop of a smaller size, about the size of an A4 paper notebook, and it popularly came to be known as a notebook computer or notebook. Thereafter the terms laptop and notebook began to be used interchangeably. Nevertheless, the terms, notebook and laptop are incorrect terms, as due to the heat, many laptops cannot be placed on top of the lap, and most notebooks are not the size of an A4 paper notebook. However, what manufacturers usually call as a notebook, end-users prefer to call it as a laptop; hence both the terms are used.

According to the functions and the models of notebooks, they are generally classified as: Ultraportables (screen is diagonally less than 12 inches, weight is 1.7 kg or less); thin-and lights (screen is diagonally from 12 to 14 inches, weight is from 1.8 to 2.8 kg); medium-sized laptops (screen is diagonally from 14 to 15.4 inches, weight is from 3 to 3.5 kg); and desktop replacement computers (screen is diagonally from 17 to 20 inches, weight is 4 to 6 kg).

The concept of laptop was to make a device that could use the same software of a desktop computer, but much smaller in size to enable mobility and support mobile computing (ability to use the computer while in transit). Thus, further innovations have introduced transportables (which can be moved from one place to another without supporting mobile computing); tablets (which feature touchscreens and support mobile computing); ultra mobile PCs (which are very small and compact tablet PCs); internet tablets (which support internet and mobile computing); personal digital assistants (PDAs), which are pocket-sized and support mobile computing; handheld computers, which represent expensive tablets or PDAs; and smartphone, which is a PDA or a handheld computer with cellphone integration. Over the development phases, these classifications got blurry at times, and many machines fused functionalities of other categories.

Notebooks can be used for various purposes. Commercial purposes like attending phone calls, receiving and sending emails and faxes, typing out letters and printing them, making presentations with pie and bar charts, and taking data from one place to another can be achieved by any standard notebook. However, high fliers prefer thin-and-light notebooks and for regular office work, ultraportable notebooks are preferred. Both are wireless notebooks so they can be remotely accessed. Scientific purposes are best suited with a notebook that features fast computing speed, good 2D and 3D graphics display, and a large memory, like desktop replacement notebook, and a thin-and-light notebook. Artistic purposes require animation, 2D and 3D drawings, interior & exterior designing, arranging music compositions, post-production audio-video work, etc., which can be fulfilled by desktop replacements, gaming notebooks, and mainstream notebooks.

Educational institutions normally do not prefer notebooks due to its high chance of being stolen. Additionally, they prefer that their assets do not move around within the premises in the hands of students who may be careless. However, to keep up with the times, and to be considered as techno-savvy, they do invest in notebooks. The types of notebooks best suited for educational purposes are mainstream notebooks, and desktop replacements. Students need a notebook to do projects, prepare study notes, and to play some games in their spare time. They need to take the notebook wherever they go, hence, size and weight are major considerations. The type of notebook that fulfills student needs is a thin-and-light notebook with locking facility so that they can lock it with their backpack. Most students report late submission of projects due to their notebooks being stolen.

So no matter what the purpose one might have for using a notebook, it seems that mobility will always seem to be the main reason for such a product purchase. Nowadays with so many models being offered with affordable prices, it seems that notebooks will always be a product in demand. After all it is one of the best selling computer hardware for quite some time. And that says it all.

Professional Hard Drive Recovery is Vital as Computers Get More Complex

The very nature of a computer hard drive makes it prone to a number of problems, each of which can potentially cause a crash. Data is stored on fast-rotating magnetic disks, with carefully calibrated read/write heads used to place data on the disks and access that data later on. However, the speed at which these disks rotate can cause friction and stress to the computer mechanism, making the possibility of some sort of failure greater as time goes on.

To make things even riskier, a new drive is no guarantee that there will not be a failure, as the very size and complexity of newer systems increases the risk of their own crash.

Given these risks, it is very important for users to know that in the event of a failure, they can rely on a professional hard drive recovery service that is highly experienced in dealing with the two general sorts of disk failure – physical damage to the drive itself and corruption of the data files within the disk.

A hard drive recovery expert will quickly diagnose the problem and let the client know what their estimate is for the length of time that it will take to recover the data and repair the disk.

They will take the problematic drive to a clean and pollutant-free laboratory environment before subjecting the disk to a series of specialised diagnostics, which in turn will tell them how to solve the problem.

A damaged hard drive can sometimes be fixed simply by replacing the faulty components but it is more often the case that the entire file system has become corrupted, preventing the drive from functioning. In this case, a technician will have the specialised software and equipment necessary to extract any lost data and rebuild the file structure.

Unless the cause of a hard drive crash is transparently simple and obvious, it cannot be stressed enough that dealing with the problem should be left to the professionals. Amateur attempts to fix the problem by tinkering can often turn a simple failure into a full-blown crisis.

Thankfully, the leading companies which offer hard drive recovery services pride themselves on their professionalism and attention to detail. They provide services to leading players in the commercial and business sectors, and testimonials from many of their clients can be found on their websites. Just as importantly, they also provide after-service cover to ensure that the client has peace of mind even after the problem is solved.

Tell Me About Computers

So you want to know about computers? The most important thing to remember, if you are new to computers, is not to be afraid of them. They are just another electrical appliance, and unless you do something drastic, I promise you they wont blow up in your face! Trial and error is your best friend when learning about computers and a few tips on computer jargon will help a long way. I love jargon it is so creative- who on earth thought of "cookies"? Lets begin with some basics, computers were first created in 1936, and Microsoft Windows was born in the 1980s. Since then computers, or should I say programmers, have become smarter and smarter, creating the wonderful array of program freedom that we now enjoy in our daily lifestyle of computing. So lets get ourselves up to date with the meaning of some of the computer jargon, or what some of the bits are, and what they do in your computer.

The Computer Case

Computer cases are the outside casing of your tower, or box in your computer, these cases come in an array of different sizes and styles. Many people have their cases in fancy styles as a way of expressing themselves, or expressing individuality. Depending on what you choose, will determine the price you will pay for a computer case. Before grabbing the fanciest thing you find, remember to take some note of what's 'inside' the box, make sure that you choose a tower or box that suits your requirements as well as your individuality!


CPU

A CPU (Central Processing Unit) is the component in a computer that sends instructions and processes information in programs. Since the 1970s single chip processors have been the main type of processor. Usually when people refer to CPUs they mean microprocessors.




The Mother Board

There are many different designs of mother boards available but generally they all look pretty much the same and do the same job. To look at, a Mother Board looks a lot like a green piece of plastic with a heap of wires and chips attached to it. Take care of your Mother Board as it is very sensitive. It is advisable to take precaution before touching it as you may damage the onboard components.

Power Supply

The power supply unit in a desk top computer is a component that converts AC voltage to DC. The ATX style is the most common nowadays, although there are several different styles of power supply units available on the market.

Hard Disks

I find hard disks funny, as they aren't really disks in the olden days sense, originally hard disks were disks made of hard plastic, and floppy disks were floppy if you shook them. Now a Hard drive refers to the storing capacity inside of your computer. All your files are written onto the hard disk and stored there for future retrival or modification.



Floppy Drive

Floppy discs aren't floppy at all! They are infant hard plastic square things that used to be a popular way of transferring data from one computer to another. The computer reads and copies the information to a small metal circular disk set in the plastic casing. 

CD ROM 
ROM means, Read only memory, ROM chips are used in many appliances not just computers, a CD ROM is a device that stores information or data permanently. Once it's on there you cant delete it like you can with your hard drive or floppy disk unless you are using a CD-RW. CD's are a standard means for distributing large amounts of information easily, since CD's are so cheap. You can use a CD ROM on your computer to create your own music and photo CD's. Now you know some 'inside info' you should be ready to go and explore the endless options of computers and devices that are open to you, just remember- To err is human, to mess things up requires a computer!