Posts Tagged Computer
How to Buy Computer Equipment for Your Business
Posted by Tom in Desktop Computers, How to, Internet Business, Technology, Tips, Tutorials, Windows on September 4th, 2008
Buying new computers for your growing company is easy. All you have to do is figure out what computers to buy and where to buy them.
Neither question should be all that hard to answer. As
a rule, the computers you need for your business are the very same machines you’ve seen displayed at big office supply [...]
E-mail worms
An e-mail worm is a malicious program that comes as an e-mail attachment and pretends to be innocent fun.
The following e-mail worms are the most prevalent.…
Happy 99
(From the USA in January 1999) This program, called HAPPY99.EXE, comes as an e-mail attachment. If you open it, you see a window titled “Happy New Year 1999 !!”. [...]
Multipartite viruses
You’ve learned that some viruses, (called boot-sector viruses) infect the disk’s boot sector, while other viruses (called file viruses) infect the disk’s file system. If a virus is smart enough to infect the disk’s boot sector and file system simultaneously, it’s called a multipartite virus.
Yes, a multipartite virus hides in two places: the boot sector [...]
Boot-sector viruses
On a floppy disk or hard disk, the first sector is called the disk’s boot sector or, more longwindedly, the disk’s master boot record (MBR). A virus that hides in the boot sector is called a boot-sector virus. Whenever the computer tries to boot from a drive containing an infected disk, the virus copies itself [...]
File viruses
A file virus (also called a parasitic virus) secretly attaches itself to an innocent program, so the innocent program becomes infected. Whenever you run the infected innocent program, you’re running the virus too!
Here are the file viruses that are most common. For each virus, I begin by showing its name, the country it came from, [...]
Virus secrets
A computer virus is a program that purposely does mischief and manages to copy itself to other computers, so the mischief spreads. Since computer viruses are malicious malevolent software, they’re called malware.
People create viruses for several reasons.
Some people think it’s funny to create mischief, by creating viruses. They’re the same kind of people who like [...]
Other hardware problems
Posted by daivy in Computer, Desktop Computers, How to, Laptops / Notebooks on August 29th, 2008
If you try to install extra hardware, it might not work — and installing it might make your other hardware stop working also.
One reason is a hardware conflict: your new hardware might conflict with the old hardware. For example, if your new hardware tries to use the same Interrupt ReQuest (IRQ) as other hardware, neither [...]
Printer problems
Posted by daivy in Computer, Desktop Computers, How to, Laptops / Notebooks on August 29th, 2008
You might have trouble printing, for several reasons.
First, many modern printers work just while using Windows. They won’t work while you’re using MS-DOS.
Also, many printers sold today require an expensive cable, called an IEEE 1284 cable. It looks like a plain cable or a bidirectional cable but contains fancier circuitry.
If you’re having trouble printing, try [...]
Keyboard problems
Posted by daivy in Computer, Desktop Computers, How to, Laptops / Notebooks on August 29th, 2008
Your keyboard might seem broken. Here’s what to do.
Wet keyboard If your keyboard got wet (because you spilled water, coffee, soda, or some other drink), turn the computer off immediately (because water can cause a short circuit that can shock & burn the keyboard and computer and you). Unplug the keyboard from the computer.
Turn the [...]
Mouse problems
Posted by daivy in Computer, Desktop Computers, How to, Laptops / Notebooks on August 29th, 2008
Mice can cause problems.
Mouse pointer lurches When you move the mouse, the mouse pointer (on the screen) is supposed to move also. If the mouse pointer lurches erratically (sometimes going fast, sometimes going too slow or not at all) or moves in just one direction (just horizontally, or just vertically, but not both), the mouse [...]
Microsoft Word problems
Posted by daivy in Computer, Desktop Computers, How to, Laptops / Notebooks, Windows on August 29th, 2008
While using Microsoft Word (which is a word-processing program), you might experience the following problems.
Toolbar missing Near the screen’s top, you’re supposed to see the standard toolbar (which includes buttons for New, Open, Save, Print, etc.) and the formatting toolbar (which includes buttons for bold, italic, underline, etc.). If a toolbar disappears, you accidentally deleted [...]
Classic Windows problems
Posted by daivy in Computer, Desktop Computers, How to, Laptops / Notebooks, Windows on August 29th, 2008
If you’re using classic Windows (Windows 3.1 or 3.11), you might experience the following problems.
Window too tall If a window is too high to fit on the screen, the computer is confused about how tall the window and screen are.
Since the window’s top line is higher than the screen and can’t be seen, you can’t [...]
Modern Windows problems
Posted by daivy in Computer, Desktop Computers, How to, Laptops / Notebooks, Windows on August 29th, 2008
If you’re using modern Windows (Windows 95, 98, Me, or XP), you might experience the following problems.…
Windows doesn’t finish loading When the computer starts going into Windows, if the Windows logo & clouds appear on the screen but never go away (so the computer seems stuck and you never see the Start button or icons), [...]
Common problems
Posted by daivy in Computer, Desktop Computers, How to, Laptops / Notebooks on August 29th, 2008
Here are the most common computer problems and how to solve them.
Booting problems
Turning the computer on is called booting. When you turn the computer on, you might immediately experience one of these problems.
Unusual beeping When you turn the computer on, you’re supposed to hear a single short beep. If you hear unusual beeping (such as [...]
Strategies for repair
Posted by daivy in Computer, Desktop Computers, How to, Laptops / Notebooks, Mortgage loans, Windows on August 29th, 2008
To repair a computer, follow these general principles.…
Ask
Ask for help. Instead of wasting many hours scratching your head about a computer problem, get help from your dealer, your computer’s manufacturer, your software’s publisher, your colleagues, your teachers, your friends, and me. You can phone me day or night, 24 hours, at 603-666-6644; I’m almost always [...]
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