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The motherboard holds the most important parts of the computer. There are many lines on a motherboard, all of which are wires to transport information and data to the parts of the computer.
The memory is located on the motherboard. The capacity of storage is measured in gigabytes. A gigabyte is one billion bytes. Other common byte multiples include:
- 1 kilobyte = 1,000 bytes
- 1 megabyte = 1,000,000 bytes
- 1 gigabyte = 1,000,000,000 bytes
- 1 terabyte = 1,000,000,000,000 bytes
Most computers have 2-8 gigabytes of memory. The memory is where programs are stored when the computer is on. The memory pictured at right is the random access memory, or RAM. The RAM, as the name explains, can call upon any data stored in it in any order. It doesn't have to be used in the order that it's stored.
The Hard DiskSince the memory needs electricity, it can only hold data when the computer is turned on. When the computer is off,
Inside a computer is a small battery. This battery is necessary for maintaining the computer while it is turned off. It keeps track of the date and time so this information is readily available when the computer is turned on.