Data Representation Mini Test

What is the max number of combinations you can make out of 4 bits?

• 8
• 10
• 12
• 16

Convert 11001001 to Denary (decimal).

• 199
• 200
• 201
• 202

Convert 7A Hexadecimal to Binary.

• 01111010
• 01111000
• 01110100
• 01110010

Convert 9C to Denary (decimal).

• 155
• 156
• 157
• 158

What is the smallest unit of data in binary?

• A nibble
• A byte
• A bit
• A letter

Add the two binary numbers: 11110000 + 00001001

• 11111001
• 00110101
• 11001011
• 00100111

What problem occurs in binary addition, when the result is more than what the CPU is capable of processing?

• overpour
• overgo
• overflow
• overmove

Binary is a base two number system. What does this mean?

• That there are 10 possible states (0-9)
• That there are 16 possible states (0-9 and A-F)
• That there are 2 possible states (0 or 1)
• That the computer can only understand letters

Why do computers use binary?

• It is easier to deal with only two states (0 or 1)
• It is easier to understand

How many bits are in a byte?

• 2
• 0
• 8
• 4