Buying a Used Computer Online - What to Look For Step by Step Before You Make Your Purchase

There's one reason and one reason only to buy a used computer online, lack of money which is a good reason. For the purpose of this article, the term computer shall include laptops. This article will tell you what to look for and what not to look for in a used computer, step by step.

I would only consider buying a used computer if you can't afford to buy the computer you want new and can't afford a new computer at a level below that computer provided its features still have what you want. IE, if you can't afford to spend $750 for a new Core 2 Duo computer but can afford to spend $500 on a new Core Duo computer or $500 on a used Core 2 Duo, I would probably get the new Core Duo Computer unless the features on the used Core 2 Duo you found you couldn't do without. The main advantage of buying a computer used is the warranty and the ability to extend it, free technical help from the computer company and the fact that you know there is no spyware, adware and viruses on it and in all likelihood no pre-existing problems on the computer waiting to be discovered.

Once you decide you can only afford to get the computer you want used then the first thing I would do is look to to see if it's available online from a large company that sells refurbished computers with at least a 45-90 day warranty. Refurbished computers include computers whose boxes were opened and never used as well as returned computers with no problems and returned computers with problems. These companies usually buy refurbished computers in mass and test, repair and restore them as applicable to their original factory setting before they are resold, so you're not likely to get a stiff. If you are, you will be covered by their warranty. You usually can extend your warranty for a few years beyond the original 45-90 days, as long as it's before your original warranty expires.

The next step below that is buying your computer used online. Usually when you are buying a computer used online, there is no warranty. If you are not sure if a computer includes a certain feature on it, you need to contact the seller and have him confirm by email if it does or doesn't have that feature before you purchase it. Sellers are notorious for being deliberately vague on used computers. For instance, a few years ago I purchased a computer which the seller confirmed to me by email that it included an operating system and when I got it, of course it didn't but because I had this in writing he replaced it with one that had an operating system. If I didn't get him to confirm this, chances are he would have stated that nowhere in his sales description did he say an operating system was included and therefore he won't replace it. If you don't have a basic general knowledge of computers and you have a friend that does, I would have the friend check out the description before you make your purchase. Whatever you do, if you see the words "Sold as Is"- do not buy as that is the sellers way of saying you are stuck with it, once you receive it.

I would not purchase any computer that is not at least described as being in very good condition as most sellers have a tendency to describe the condition one level better then what it is. I also would not buy any computer that mentions any kind of problem in its sales listing even its been fixed as you're asking for trouble. You should make sure the memory, hard drive, operating system, size and CPU is listed and what you're looking for. Assuming everything is in order, I would insist that the seller cleans the computer of all spyware, adware and viruses, if applicable before they send it out. I once got a used laptop that I had to spend 5 hours cleaning that junk off it. Once you get the computer, run any security programs on it and if you see that the seller hasn't sent you a clean computer, either tell them to refund you for the the whole computer or tell him you'll keep it but you want a rebate for sending you an unclean computer.

One last thing before you make your purchase is to see what software is already on the computer and if there's something you don't want, ask the seller to uninstall it and if there's something you want kept on, tell the seller to leave it on. I would have the seller send you the computer UPS ground as its likelier to be damaged if sent by air, insured for the full purchase amount and requiring you to sign for it when delivered.

Once you get your computer I would as I said earlier, run any security programs you have to make sure there's no junk on it. I then would test the computer for its basic functions and once you have an internet connection established, download Belarc Advisor online which is a free download that reads what's exactly on your computer in detail to make sure everything you were told was on the computer is on the computer in terms of software, system, RAM, hardware, etc. I also would make sure you have an anti-virus program operational before you start surfing the web.

Scuba Diving Computers - Types and Styles

A scuba diving computer can be a divers best friend. It will allow you to stay down longer than if you were diving off of tables. There are many types and/or styles of dive computers you can choose from. Which one is best is really personal preference and is suited to the way you dive. The following are some of the choices you will have when purchasing your dive computer.

Console Dive Computer

A console dive computer is attached to the rest of the equipment via a hose. The console dive computers typically come with a pressure gauge. The readouts are typically larger than on a wrist dive computer so they can also be easier on the eyes.

There are also options for a scuba dive computer to be mounted on your hose (this is the type we currently use) or clip onto your BC. Choose whichever is more comfortable for you and fits into your price range.

Wrist Dive Computer

The wrist dive computer is very popular. These types of computers look like large watches and are worn on the wrist. They will tell you all you need to know at a glance. Some wrist dive computers are also able to be mounted in a console.

Sometimes the faces may be a bit small for all the information the computer can display, so make sure you will be able to read it underwater.

Unless they are air integrated and wireless (see below) wrist dive computers usually do not come with a pressure gauge. One small disadvantage here is that these can be pretty easy to misplace/lose.

Air Integrated Dive Computer

Air integrated dive computers are becoming more commonplace. An air integrated computer measures the tank pressure and then calculates how much more time you have left at the current rate of air consumption. The air integrated dive computer will tell you how much time you can spend at any exertion level.

An air integrated computer replaces the need for a submersible pressure gauge (SPG). One downside of an air integrated computer is that if it fails, you lose information on how much air you have left in your tank. Dive over.

Nitrox Dive Computer

With nitrox diving becoming more and more common, so are computers that are nitrox compatible. Even if you aren't diving with nitrox now, if you are even thinking of diving with nitrox in the future, it is probably worth it to purchase a nitrox dive computer. This will save you the expense of buying a whole new computer in the future. However, if don't think you will ever dive with nitrox, then there is no reason to pay for this feature. A standard air computer is probably $100+ less than its nitrox counterpart.

Hoseless Dive Computer

The hoseless dive computer consists of the receiver (typically worn on the wrist or mounted on the BC) and a transmitor. The transmitor attaches to the high pressure port of the regulator first stage and then sends your air information, wirelessly, to the receiver. The receiver looks the same as normal dive computers.

This setup cuts down on the number of hoses you need. There are now even hoseless dive computers that can accept signal from multiple transmitors - so you can even keep an eye on your buddies air consumption. Of course, this capability is really for the more advanced technical divers who may use different tanks on one dive. And, of course, we are talking some pretty high price tags here.

So just think about how you dive and what capabilities you need. The right dive computer for one person can be completely wrong for another person. Choose one that you are comfortable with and one that is right for you wallet.

How to Fix Computer Error Message? Do it Yourself Way

It's not easy to work on your computer, if you keep getting constant computer error messages. Do you often wonder how to fix computer error messages once and for all? Some users will get the common symptoms of a defective computer registry like your computer is running much slower than before and it keeps stopping at critical times when its under a heavy processing load. You are finding it difficult to add additional hardware or software to your computer and even if you do it does not work well.

Your personal computer does not start up or stop on time and it's slow to process your commands. You need to reboot your computer repeatedly and it's already showed the blue screen of death a few times. There is a simple way you can catch all such errors very easily. All you have to do is download registry cleaner software and you can get your computer back to normal as soon as possible. Fix your computer error messages cannot be done manually, even if it is possible, you have to be an expert.

Why do I need to use a registry cleaner and how to fix computer error messages with it?
The Internet is pretty seductive with a lot of absolutely free software present for download. No matter how careful you are you can't help downloading a few of the better software's so matter how outdated and even incompatible they are with your operating system.

These wrongly written programs cannot be reinstalled or uninstalled easily and leave being fragments which are really confusing to the computer and its normal running.

A good way to evaluate whether you need registry cleaner software is to answer these questions:

- Have you recently installed software updated drivers?

- Do you have any software that once installed did not work well and you did not use it as a result?

- Did you at any time have a Virus, Spyware infecting your files and your computer?

- Do you always download a lot of computer software and computer games?

Removing old software or old hard ware never leaves your computer completely free of errors and a few fragments are always present on your computer registry. These entries are responsible for corrupting your computer and slowing it down.

Is it possible to fix computer error message with a registry cleaner? Yes, its possible to fix computer error message with a registry cleaner. Registry cleaner software works on the simple principle that almost all computers have a lot of unused and unnecessary software on the computer registry. At start up all these programs compete to start at the same time which happens to confuse the computer and thus slows down the computer a lot.

Almost all registry cleaner software runs on a well written program which is responsible for sifting through your computer registry for almost every variety of common computer error like unused programs and old programs, partially removed programs, lost files and half removed short cuts, effective devices, fonts and configuration files.

A good registry cleaner software program can sift through the thousands of files and programs in your computer and remove all faulty programming found in your Computer Registry which can slow down and cause the infamous blue screen of death. If you want to know an easy and guaranteed way how to fix your computer error message solution; then you've got to get a registry cleaner.