RAM

RAM (Random Access Memory) is your system's short-term memory. Data is temporarily stored here until you save your work to the hard disk. RAM is used by the system to store data that is processed by a computer's CPU.

The computer's work takes place in RAM. This is where programs run when you are using Word to create a letter, or Excel to produce a company spreadsheet.

This short-term memory disappears when the computer is turned off, so always save your file before turning off the machine. When you save a file, you are saving it to long-term storage that does not disappear when the computer is turned off.

RAM on motherboard
The more RAM you have, the more things your computer can do at the same time, and the faster your computer performs certain tasks. RAM is measured in megabytes (MB) or gigabytes (GB).

To understand megabytes and gigabytes, you need to know about bits and bytes. A bit is the smallest unit of data in computer processing. A byte is a group of eight bits. A megabyte is about one million bytes. A gigabyte is 1,024 megabytes.

To put this into perspective, consider that a printed page of single-spaced text contains about 3,000 characters. One MB holds about 400 pages of single-spaced text.

Motherboard
The motherboard is the computer's main circuit board. It's a thin plate that holds the CPU (Central Processing Unit), memory, connectors for the hard drive and optical drives, expansion cards to control the video and audio, as well as various external ports and peripherals. The motherboard connects directly or indirectly to every part of the computer.

If you decide to open the computer case and take a look, be sure to touch a grounded metal object to discharge any static buildup. Static electricity can be transmitted through the computer circuits and ruin them.