Understanding Binary and Digital Graphics

What is the smallest addressable unit of memory in a computer?

• Bit

• Byte

• Kilobyte

• Megabyte

What is the base of the binary number system?

• Base 10

• Base 8

• Base 2

• Base 16

How many bits are there in a byte?

• 4

• 6

• 8

• 10

What is the binary representation of the denary number 72?

• 01001000

• 10010000

• 00101000

• 11001000

What does ASCII stand for?

• American Standard Code for Information Interchange

• American System Code for Internet Interchange

• Advanced Standard Code for Information Interchange

• American Standard Code for International Interchange

How many characters can ASCII represent?

• 128

• 256

• 512

• 1024

What is a pixel?

• A type of vector graphic

• The smallest controllable part of an image

• A type of bitmap image

• A type of character set

What is an overflow error in binary addition?

• When the result is negative

• When the result cannot be represented in 8 bits

• When the result is zero

• When the result is too small

What is the largest number that can be represented with 8 bits?

• 127

• 128

• 255

• 256

How many bits does Unicode use to represent each character?

• 8

• 12

• 16

• 32