viernes, 1 de octubre de 2010

ENGLISH AND COMPUTER

Unit 1 - COMPUTERS AND THE PASSIVE VOICE

- When the computer is switched off, the contents of ROM are not lost.
- The main use of ROM memory in a computer is to store a program that runs when the computer is turned on.
- The contents of RAM can be changed because it only stores programs temporarily.
- Binary numbers are used by computers because they are very simple to make electronic circuits for.
- A binary number is represented by a pattern of 0 and 1.
- A single unit in binary is called a bit.
- Computer memory is measured is bytes.
- One byte is needed for each letter.

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