Edexcel GCSE Computer Science Revision (Topic 3-6)

What are the only two numbers you can use in binary?

• 0 and 1
• 1 and 2
• 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
• 1, 2, 4, 8, 16

Tags

CCSS.4.NBT.A.2

If a binary number ends with a 1, it must be...

• An odd number
• An even number
• A prime number
• The number 12

Tags

CCSS.2.OA.C.3

How is our number system different from the binary system?

• Our number system is base-5; the binary system is base-3
• Our number system is base-10; the binary system is base-2
• Our number system is base-10; the binary system is base-1
• Our number system is base 100; the binary system is base-2

What base is the hexadecimal number system?

• 6
• 7
• 12
• 16

If 'A' is ASCII 65, then 'T' is ASCII

• 66
• 99
• 13
• 84

ASCII is a way to represent ______________ as binary numbers.

• Character Numbers
• Numeric Values
• Alphabet Letters
• Alphanumeric characters

Smallest unit of computer memory

• Byte
• Kilobyte
• Megabyte
• Bit

Which  is larger? Kilobyte or Megabyte

• Kilobyte
• Megabyte

Which is is smaller? Megabyte or Byte?

• Megabyte
• Byte

A nibble equals how many bits?

• 1
• 8
• 2
• 4