HOW TO INSTALL RAM

* RAM s usually comes like 16 32 128 256 512 1024 MB

* If you need to have 1 GB RAM u can add 1024 MB RAM

* If you alrady using a 512 MB Ram u can easilly put another 512 MB RAM

then it works as 512 MB RAM ( 512MB + 512MB = 1024 MB = 1.024 GB)

* After knowing How much RAM you need You must see what is the card type (RAM type )

ypu need

* you can find this in the manual of your computer

* today most computers usually have DIMM slots.

* KEEP REMEMBER PUTTING WRONG TYPE OF RAM CAN BE DAMAGE BOTH SYSTEM AND THE CARD

* This RAM type must match the existing RAM in speed, parity and type

* common type available today is SDRAM.

* Before open the case of your CPU make sure that computer is turnoff and unpluged

* RAM is installed in a series of slots on the motherboard known as the memory bank.

* Select the correct slot and install the RAM

RAM and SAM

RAM

You can access memory cell directy

if you know the row and colum of that cell correctly.

Opposite of RAM is SAM (Serial access memory)

This is usually used to store memory in order

(eg :texture buffer memory on a video card)

RAM data can be access in any order as you wish.

Networking

networking is the practice of linking two or more computing devices together
3 main networking methods
Local Area Network (LAN)
metropolitan area network (MAN)
Wide Area Net work (WAN)

External modem

Internal modem

Modem

This allows your computer with other computers over an ordinary phone line
There are two kinds of modem,
internal - Add in an card into a free ISA slot in the motherboard
external - attaches via a cable to your computer
You can attaches external modem using USB port.
Internal modems are cheap
External modems are easier to troubleshoot and reset

BIOS Chip

BIOS Chip
Short of basic input/output system
Located in every computer motherboard
This contains instruction like
• How system should boot
• How it opperates