How to Buy a Computer: The Basics

Posted in Computers on August 31st, 2009 by cahyo

RAM ():
Memory is one of the key components of a computer which is measured in . Note that 1000 MB is equal to 1 gigabyte (GB). So the more you have the better your computer works. Most computers today come with a minimum of 512 MB (about half a gigabyte) of RAM. You should try for 1 GB and more because your computer will run that much faster. Not that Windows Vista and Mac OS X Leopard operating systems require 1 GB for good performance and 2 GB to run at top speed.

Recommendation: I suggest buying at least 1 GB (1,000 MB). Remember that Windows Vista and Mac Leopard are memory hungry so I advise buying as much RAM as you can afford. Memory is the crutch of making a computer run like it should.

Insider’s tip: Buy the minimum amount of memory and then purchase extra memory components called “sticks” from a site such as www.datamemorysystems.com/. This can save you up to a couple hundred dollars.

Buyer Beware: It is not uncommon for low end computers ($300 to $600) to come with low amounts of RAM. Make sure to check on the ability of your computer as it should be able to handle 4 GB.

Central Processing Unit (the brains):
The CPU handles all the calculations of the computer. For the average user, CPU speed is not as important of a gauge as it used to be. The common will not need to worry about cpu speed as much as a gamer or multimedia user.

CPUs are made by either Intel or AMD and both companies have great product options. Intel controls most of the market share and costs more than AMD.
Recommendation: CPUs come in two forms: 32 bit and 64 bit. I suggest the 32-bit processors because the 64-bit processors have a lot of problems working with software programs.

Dual Core processors are all the rage right now. What’s Dual core? This means that your computer has two CPUs which give the user twice the computing power. Dual core is a must for high end .
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How To Fix Your Slow Computer To Run Much Faster

Posted in Computers on May 19th, 2009 by Computers

Without a doubt today’s home PC is faster than ever, so much so that even the slowest brand of today has more under its hood than all the computing power combined together that was used in running the Apollo Moon Mission! That said, your brand new superfast PC with time will inevitably become a snailing that will drive you up the wall. Here’s why:

Whenever you use your computer, file pieces or file are formed which eventually become dislodged and misplaced from one another. This process of fragmentation occurs because of the continuous and ongoing activity of the addition and the deletion of files on your whenever your computer is performing a task. Fragmentation ultimately reduces because processing resources must be allocated to what in effect becomes a seek-n-find operation.

Basically when a file is fragmented the computer must search the entire any time that file is opened in order to piece together all the various of that file to make it complete. As you can imagine this is a time consuming and labor intensive process that makes a computer run slow and forces it to run and perform in a sluggish manner.

The Process Of Defragmenting

Defragmentation is the process whereby the various different parts of a file are arranged in a contiguous so that the file connect to one another in sequential order until the file is a complete unit once more. Arranging files in this manner speeds up an otherwise because now that the file are arranged to form a whole the computer can access and retrieve that file so much faster from its or whichever disk has just been defragmented.

Windows Comes With A Basic Disk Defragmenting Tool That Does Little To Fix A

All come installed with a basic defragmenting tool, which although won’t restore your to its former speedy self will help to improve performance. Getting to the inbuilt Windows defragment tool is quite easy. All you have to do is click on Start then go to Programs, find the Accessories tab (click on that) head to Systems Tools and finally you’ll get to the defragment tool. Windows’ default defragmenting tool will be listed as Disk Defragmenter.

Whether you are using a third party disk defragmenter or the Windows inbuilt default tool, the process of basic defragmenting your drive is pretty much the same and couldn’t be simpler. Just choose whichever drive you wish to defragment (assuming you have more than 1 drive) then click “Defragment”. You can choose to analyze the disk first by clicking the “Analyze” button but this is pretty redundant since the defragmenting tool automatically goes through the process of analyzing before defragging anyway.

The Issue Of The Windows XP Paging File

There is a hidden file on your computer called the Pagefile.sys which together with the physical amount of RAM installed on your system makes up the Virtual Memory:

Paging file + Physical RAM = Virtual Memory

The paging file is really a relic of the past and its purpose was to boost the amount of actual physical RAM available on any given computer system. You see back in the day when computers were equipped with a “whopping” 64-128 (MB) of RAM, as software applications became more advanced and at the same time more resource hungry, an alternative means was needed to accommodate the required amount of RAM, until such time that hardware manufactures caught up and produced greater capacity modules of RAM.

RAM, by the way stands for, and is a hardware component found in your computer as memory modules. These days however, RAM really isn’t too much of an issue especially on high-end systems that can easily accommodate 16G or more of RAM. Having said that though, for the average PC owner the prudent management of RAM is still an issue, especially when one takes into account such factors as insatiable operating systems like Windows Vista (need a minimum of 1.5 gigabytes of RAM for Vista to perform at a basic tolerable level) and other resource ravenous software that is the norm of modern day computing.

Anyway back to that dinosaur of yesteryear known as the Paging File; for some reason or other Windows by default still allocates a figure of 1.5 times the physical amount of RAM to the Paging File. In other words:

Physical RAM x 1.5 = Paging File (Virtual Memory)

So in a systewhich has 4 gigs of physical RAM installed, the Paging File would take up a shattering 6 gigs of RAM! And that is not the only problem related to the Paging File here’s the kicker:

By Default The Paging File Cannot Be Defragmented!

The Paging File despite its designation of “virtual memory” is nothing more than reserved space to which data is written to and retrieved periodically. By default the paging file is stored on the boot partition of windows which means that the paging file is housed in that portion of Windows that contains the operating system and its respective support folders. There is a huge problem with this situation and that is:

When the Paging File and Operating System are located on the same drive partition simultaneous access to both systems is impossible and access to the one must by necessity await completion of access to the other. This process naturally makes for a very .

Two Ways To Fix The Paging File Problem And Make Your Faster

1. The Hard Way To Speed Up Your Slow Running Computer

Luckily though there is a way round this bottle-neck situation; by moving the Paging File to a different partition Windows will then be able to handle I/O (input/output) requests faster because the relocation of the Paging File ensures a less competitive environment for reading and writing requests. However do note though that if you completely move the Paging File from the boot partition Windows will be unable to create a dump file (Memory.dmp) with which to write debugging information when a kernel mode Stop Error message occurs.

The way to bypass such an eventuality is to create a paging file that is stored on the boot partition and another paging file that is located on a separate partition. Windows by design will access the paging file located on the non-boot partition first before looking to the paging file housed on the boot partition.

2. The Easy Way To Speed Up Your Slow Running Computer

As you can see the above method is a very complicated and time consuming way to fix a ! Surely there must be an easier and quicker way? Well actually thankfully there is. Click the link below to find out how:

Make Computer Faster

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How To Protect Your Laptop – From Theft And Data Loss

Posted in Computers on May 4th, 2009 by Computers

The Frightening Truth:

Laptops have become one of those devices that is quickly going, and in some cases, already quickly gone from something that only techies or high level business people owned to something that even a poor college student finds a way to afford. This is simply that our lives become wrapped around these objects. Think of the cell phone. Ten to 15 years ago it was again only the techies or important business people that owned a cell phone. Now even elementary school kids have them so parents can be in constant contact when necessary.

We all have had the moment when we though we had misplaced our cell phone. Imagine losing your laptop. Not only is it a fairly significant expense, but think of the data you have on there. You probably keep a file with , you have your family pictures stored there, maybe music, movies. The list is a long one and an important one.

Therefore, make sure you follow the recommendations in this article on how to protect your laptop.

The convenience of the laptop is obvious. The computing power and are equivalent to most . With the of wi-fi we can be on the internet almost anywhere and be emailing, chatting, writing, surfing the net or shopping, all anywhere in the world.

Here are some daunting statistics for laptop loss from 2008:

Relevant Data Loss and Data Breach Statistics

- 1 in 10 … will be stolen within the first 12 months of purchase.
- 97% …of lost and stolen notebooks are never recovered.
- 50% …of organizations reported laptop theft.
- every 43 seconds …a computer is reported stolen.
- every 3 days … an information security breach is reported in the U.S.
- 82% …of all PC’s will be by 2008, increasing 4 times as fast as PCs.
- 4,425 …laptops reported in Chicago taxis during a six month period.
- 56 million …individuals affected by significant U.S. data security breaches, 2005.
- 1 billion …PC users expected by 2010, up from 660-670 million today.
- 57% …of corporate crimes are linked to stolen laptops. The latest crimes of espionage and sabotage are theft of executive personnel devices to access vital financial or personnel data.

( data source: http://datarevoke.com)

How Much Does Laptop Loss Cost?:

That completely depends on how you look at it and who is doing the looking….

Personal Laptop:

The actual cost here is the cost of the laptop and if stolen while in the laptop bag (most often this is the case) then you’ve lost all your accessories as well. Not to mention possibly your wallet, MP3 player, passport (eek!). Obviously the actual cost of items and the intangible loss of items such as wallets, all your stored music, your passport, etc. are vastly different.

Business or Corporate Laptop:

Here the intangible costs can be astronomical. We have heard it on the news more than once and most of us have had it hit us directly with someone in the corporate world losing one or more laptops with critical customer data on it. The cost the hardware is only about $4000, the information carried upon it was could be worth millions..

Of course, to get to valuable proprietary information is not the reason for all laptop thefts some laptop thieves head try to quickly sell the laptop as-is. However, some data indicate that about 10 percent to 15 percent of those laptops are stolen by criminals intent on selling the data.

How to Protect Your Laptop:

With this in mind, what can we do as individuals to prevent our own personal loss?

Laptop Security Cables:

This is one of the lowest cost and one of the most effective deterrents to theft. As with most theft attempts, even a small amount of effort can make a huge difference. For this to work you need to make sure that your laptop is equipped with the appropriate feature to attach a cable. This is called a Universal Security Slot.

It is important to pay attention to what you are attaching the laptop and cable to. You sometimes have to think like a thief. If you really wanted to get that laptop could you? If you answer is yes, then you need to add more security. Consider looping the cable through a hole drilled in the lag of the desk. If you just loop it around the leg than all it takes is some one strong enough to lift the desk enough to slip the cable under the leg and whoosh! your laptop is gone…

Keep Your Laptop Out of Sight:

If you are not with your laptop then it should be secured in a locked drawer or in the possession of someone you trust (for the short trip to the restroom for example). Especially if you are in a public place like an airport, bookstore, or your favorite coffee shop. Never leave your bag alone.

Some laptop cases scream “I have a laptop in here!”

Try to use a carrying case for your laptop that may be a bit beat up or at least not look like it obviously contains a laptop. This may be difficult to do but can be a real effective way to have a thief move on to the next victim without bothering your precious laptop inside your ugly bag.

How to Protect Your Data:

I’m sure you’ve had moments when you couldn’t locate a file that you knew you had stored on your laptop. The feeling of panic can be terrible until you find it. Imagine your failing (it happens!). You would lose all your important files – pictures, videos, everything.

Therefore, first and most important is external storage. External storage can be something as simple as a USB Flash Drive also known as a thumb drive (about the size of your thumb….) or a large external drive (about the size of an average hardcover book)

The type of external storage you select will depend on your needs. If you just keep basic files (i.e. “Word” documents or spreadsheets, etc) then a thumb drive could be enough (and they are very inexpensive) and can store up to 32 Gigabytes of data or if you are willing to pay a bit more they are larger storage capabilities available. If you plan on storing large files such as lots of photos and videos then you may need to step up in capacity with an external . They store up to 2 “Terabytes” (2000 ) of data.

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