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Data representation

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Total cards: 7•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (7)

#1
Front (Question)

What is binary?

Back (Answer)

Binary is a base 2 number system used in computers

#2
Front (Question)

What is hexadecimal?

Back (Answer)

base 16 number system that uses numbers 0-9 and then letters A-F to represent the rest of the numbers until 15. A way of representing binary in a shorter form, hexadecimal does not save memory.

#3
Front (Question)

binary arithmetic

Back (Answer)

1+0= 1 1+1= 1-0 1+1+1= 1-1

#4
Front (Question)

Character representation- ASCII

Back (Answer)

• ASCII (American Standard Code for Information Interchange). • Uses 7 bits, but needs to store in in one full byte (8bits) • Used by America and UK

#5
Front (Question)

Character representation- A

Back (Answer)

#6
Front (Question)

Binary shift- left

Back (Answer)

00000110 (6) LEFT SHIFT BY 2 Becomes 00011000 (24) 6 x2^2

#7
Front (Question)

Binary shift- right

Back (Answer)

00001000 (8) RIGHT SHIFT BY 2 Becomes 00000010 (2) - 8/2^2