Skip to Main Content
Computer Science
book

Computer Science

by Ian Sinclair
May 2014
Beginner content levelBeginner
186 pages
9h
English
Newnes
Content preview from Computer Science
Fundamentals
The use of just two levels of electrical voltage or current, leading to the use
of digits 0 and
1
means that a number system using only these digits must be
used for electrical counting. A number system which uses only two digits is
called a binary system, and the simplest binary system is one that follows the
same pattern as we use for denary numbers, using columns for each power of
the base number. Since the base number is 2, this means that we have
columns for units, twos, fours, eights and so on, since 2° = 1, 2
1
= 2,
2
2
= 4, 2
3
= 8. Arithmetic can then be reduced to the rules:
0 + 0 = 0 0 + 1 = 1 1 + 1 = 10
all of which ca ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Computer Science

Computer Science

Robert Sedgewick

Publisher Resources

ISBN: 9781483104256