Understanding Binary and ASCII Representation

Why is all data represented in binary in a computer?

• Because binary is easier for humans to understand

• Because computers use electrical signals that have two states: on and off

• Because binary numbers are shorter than decimal numbers

• Because binary is the universal language

What is a bit?

• A group of 8 bytes

• The smallest unit of data in a computer

• A type of computer virus

• A measurement of speed

How many bits are there in a byte?

• 4

• 8

• 16

• 32

What does "KB" stand for in computing?

• Kilobit

• Kilobyte

• Kilo-binary

• Kilo-bus

Convert the decimal number 10 to binary.

• 1010

• 1100

• 1001

• 1110

Convert the binary number 1011 to decimal.

• 9

• 10

• 11

• 12

What does "MB" stand for in computing?

• Megabit

• Megabyte

• Mega-binary

• Mega-bus

Convert the decimal number 25 to binary.

• 11001

• 10101

• 11100

• 10011

Convert the binary number 1100 to decimal.

• 10

• 11

• 12

• 13

What does "GB" stand for in computing?

• Gigabit

• Gigabyte

• Giga-binary

• Giga-bus