1.5 Compare and contrast common units of measure

Question 1

What is a bit and a byte?

Answer 1

• Bit is a smallest unit of data that contain one of two possible values; 0 or 1.
• Byte is unit of data that contains 8-bits of either 0 or 1.

Question 2

What’s the difference between Byte, Bits per second?

Answer 2

• Byte is a unit of storage for data, information, files, software applications.
• Bits per second is a measure of throughput; how much data is transferred within a second.

Question 3

How many bits will be in KB and Kbps, MB and Mbps, GB and Gbps, TB and Tbps, PB and Pbps?

Answer 3

• 1 000.
• 1 000 000.
• 1 000 000 000.
• 1 000 000 000 000.
• 1 000 000 000 000 000.

Question 4

What is Processing Speed? and what is it’s measured in?

Answer 4

• Processing Speed is how a measure of how many instructions a CPU (Central Processing Unit) can execute in a given unit of time.
• Typically measured in cycles per second (hertz); typically MHz and GHz.