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Computer Science
book

Computer Science

by Ian Sinclair
May 2014
Beginner content levelBeginner
186 pages
9h
English
Newnes
Content preview from Computer Science
Fundamentals
Objectives
Φ
Describe ways in which information can be represented in digital
electronic form (3).
Convert between decimal, binary, octal and hexadecimal data;
represent negative numbers in fixed length binary form; perform
simple arithmetic in binary (3.1).
Explain how numeric, text, sound and graphics information may be
coded (3.2).
Number codes
Computers are machines which work with electric signals that we can
interpret in any way we want, but which we normally think of as numbers.
This comes about because the original uses for computers were as calcu-
lating machines, and it was convenient to have the signals representin ...
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Publisher Resources

ISBN: 9781483104256