Data - Number systems (binary/hex)

Question 1

Define Boolean Expression

Answer 1

An expression that is either true or false eg; X=10

Question 2

Define Truth Table

Answer 2

A table that shows all the possible combinations of inputs and their logical output value.

Question 3

Define Logical Operators

Answer 3

AND, OR, NOT

Question 4

Define Logic Diagram

Answer 4

A diagram of a circuit showing logic gates with inputs and the output these generate.

Question 5

Convert 1110 0000 0100 1000 from base 2 to hexadecimal

Answer 5

e048

Question 6

Convert 72 from octal to binary

Answer 6

111 010

Question 7

Convert 0101 0101 from base 2 to decimal

Answer 7

85

Question 8

What name is given to the computer’s own language?

Answer 8

Machine code is the name given to the computer’s own language

Question 9

Each character on the keyboard has a special code to represent it. This is known as which of the following?

Answer 9

The ASCII code stands for American Standard Code for Information Interchange and is standard for all computer systems..