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How a Computer Operates

by hehniwurm
The average person who uses a computer on a regular basis doesn't think about what happens inside a computer once the power is turned on. As long as their version of MS Windows pops up within a few seconds, most people are quite content to continue on with what they want to do on their computer. A computer goes through many processes from the moment the power is turned on before its operating system (ex. Windows, Linux) is fully loaded and takes over.

The operating system is stored on the hard disk of a computer. It is stored on the hard disk because this type of storage is much less expensive and an operating system requires a large amount of storage space. So, in order to make computers more economical, they are designed to use a combination of ROM, DRAM, and hard disks. An explanation of each follows.

Once the power switch is turned on, the "boot-up" process begins. To "boot-up" a computer simply means to start it. Electricity then flows through all of the chips and their circuits. The instructions for w...Read more!

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Hewlett Packard (page description language) (C7772A) Read-Only Memory

Olicom ROM (boot) (OC-2145) Read-Only Memory

Olicom ROM (boot) (OC-2146) Read-Only Memory

How a Computer Operates