Types Of Security

Service Set Identifier (SSID) is the name designated for a specific wireless area network (WLAN).

Wireless Home Networking

Format/Partition

Important

Once you convert a drive or partition to NTFS, you cannot simply convert it back to FAT or FAT32
you will need to reformat the drive or partition which will erase all data including programs and
personal files on

Installing Windows

lnstalling Windows 2000 Professional


(These are just basic steps which give you an idea of installing Windows)

To install Windows 2000 Professional, follow these steps:

 Start the installation by using one of the following methods:  Start from the Windows 20OO Professional installation CD-ROM. Make sure that the CD-ROM is set to

 start before the hard disk starts.

PCI and PCI Express

PCI (Peripheral Component Interconnect)

Is a computer bus for attaching hardware devices in a computer. These devices device
need the PCI specification, or an expansion card that fits into the PCI slot. Despite the availability of
 faster interfaces such as
 PCI Express, conventional PCI remains the most
common interface The PCI specification covers the physical size of the bus (including
wire spacing), electrical characteristics, bus timing, and protocols.

Components Layout

( Asus P5N32-E SLI motherboard shown below)

A. PCI Slot - This board has 2 PCI slots. These can be used for components such as

Ethernet cards, sound cards, and modems'

Memory

memory

Memory can be very confusing but is usually one if the easiest pieces of hardware to add to your computer. It is common to confuse chip memory with disk storage. An example of
 the difference between memory and storage would be the difference between a table where the actual work is done (memory) and a filing cabinet where the finished product is stored (disk).

Cables

Cables

Connect internal components to the Motherboard, which is a board with series of electronic path ways and connections allowing the CPU to communicate with the other components of the compute

Cards

cards

Cards are components added to computers to increase their capability. When adding a pripheral device make sure that your computer has a slot of the

Case

case

The case houses the microchips and circuitry that run the computer. Desktop models usually sit under the monitor and tower medels beside. They come in many sizes, including desktop, mini, midi, and full tower. There is usually room inside to expand or add components at a later time.

Scanners

scanners

Scanners allow you to transfer pictures and photographs to your computer. A scanner 'scans' the image from the top to the bottom, one line at a time and transfers it to the computer as a series of bits or a bitmap. You can then take that image and use it in a print program, send it out as a fax or print it.

Modem

modems

A modem is used to translate information transfered through telephone lines or cable.

The term stands for modulate and demodulate which changes the signal from digital, which computers use, to analog, which telephones use and then back again. A high speed connection

also requires a modem but because the information is transfered digitally it isn't required to change the signal from digital to analog but is used to creat the connection between your computer and the computer you are connecting with.

Monitors

The monitor shows information on the screen when you type. This is called outputting information. When the computer needs more information it will display a 

Mouse

Most modern computers today are run using a mouse controlled pointer. Generally if the mouse has two buttons the left one is used to select objects and text and the right one is used to access menus. If the mouse has one button (Mac for instance) it controls

Printers

The printer takes the information on your screen and transfers it to paper or a hard copy. There are many different types of printers with various levels of quality. The three basic types of printers are; dot matrix, inkjet, and laser.

• Dot matrix printers work like a type writer transferring ink from a ribbon to paper with a series or 'matrix' of tiny pins.
• Ink jet printers work like dot matrix printers but fire a stream of ink from a cartridge directly onto the paper.
• Laser printers ues the same technology as a photocopier using heat to transfer toner onto paper.

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Removable Storage and/or Disk Drives

All disk need a drive to get information off - or read - and put information on the disk - or write. Each drive is designed for a specific type of disk whether it is a CD, DVD, hard disk or, floppy. Often the term 'disk' and 'drive' are used to describe the same thing but it help to understand that the disk is the storage device which contains computer files - or software - and the drive is the mechanism that runs the disk.

USB Flash drives or thumb drives work slightly differently as they use memory cards to store information on. Digital cameras also use Flash memory cards to store information, in this case photographs.

Keyboard

The key board is uesd to type information into the computer or input information. There are many different keyboard layouts and sizes with the most common for Latin based languages being the QWERTY  layout (named for the first 6 keys).

Central Processing Unit (CPU)

Hardware:

 are the parts of computer itself, including the Central Processing Unit (CPU) motherboard, keyboards, monitors, case and drives (floppy, hard, CD, DVD, optical, etc...) Other extra parts that connect through USB), parallel cabels are called peripheral components or devices include, printers, scanners, digital cameras, PDA....

Central Procecessing Unit:

The Motherboard

the motherboard

( This motherboard diagram is typical of today's boards . All boards will be slightly different as far as which components they have, and


 the locations of those components may differ, but they are pretty close.)