GCSE CS Data Rep Lesson 4

Lesson 1 - What is Binary?

• 1 or 0

• 2

• 1,2,4

Lesson 1 - What is a byte?

• 4 bits

• 8 bits

• 1,000 bits

Lesson 1 - 1,000 terabytes (TB) is known as...

• A megabyte

• A petabyte

• A gigabyte

Lesson 1 - What is denary 55 in 8-bit binary?

• 10011011

• 00110111

• 00110110

Lesson 1 - What is the missing unit: 1 bit, ? , 1 byte, 1 KB, 1 MB,

• Megabyte

• A nibble

• Gigabyte

Lesson 1 - How much does a standard DVD hold?

• 1 MB

• 4.7 GB

• 4.7 MB

Lesson 1 - What is our number system called?

• Hexadecimal

• Denary/Decimal

• Binary

• Tens

Lesson 1 - Does the MSB and LSB of Binary Values mean, most significant bit and least significant bit?

• True

• False

Lesson 1 - What is the largest value you can store in 8 bits?

• 255

• 256

• 257

Lesson 1: How many bytes would be needed to store the number 256?

• 1

• 2

• 3