Murphy Topic 2 - Data

How do computers represent and manipulate signed integers?

• Using floating-point representation

• Using two's complement

• Using hexadecimal notation

• Using ASCII encoding

What is the range of 8-bit binary numbers in denary?

• 0 to 127

• 0 to 255

• -128 to +127

• -255 to +255

What is the purpose of hexadecimal notation in computing?

• To represent colors

• To simplify binary representation

• To encode characters

• To measure data storage

How do computers encode characters using ASCII?

• Using 8-bit ASCII

• Using 7-bit ASCII

• Using 16-bit ASCII

• Using 32-bit ASCII

What is a key concept in understanding bitmap images in binary?

• File size

• Resolution

• Compression

• Encryption

What is another term for a decimal number?

• Binary

• Hexadecimal

• Denary

• Octal

What are the two unique values in the binary number system?

• 2 and 3

• 1 and 0

• 5 and 6

• 8 and 9

What is the binary system also known as?

• Base-10 system

• Base-5 system

• Base-2 system

• Base-8 system

In what fields can binary be used in place of TRUE and FALSE?

• Arithmetic operations

• Truth tables and logic gates

• Chemical equations

• Musical notes

How do computers and basic electrical switches use the binary system?

• To represent colors

• To represent 'on' and 'off'

• To calculate distances

• To store images