Pearson GCSE Computer Science - 2.3.1 Storage Measures

What is the basic unit of data storage in binary?

• a) Kilobyte (KB)
• b) Megabyte (MB)
• c) Bit
• d) Byte

Answer explanation

The basic unit of data storage in binary is the byte.

How many bits are there in a nibble?

• a) 4
• b) 8
• c) 16
• d) 32

Answer explanation

A nibble consists of 4 bits.

How many bits are there in a byte?

• a) 4
• b) 8
• c) 16
• d) 32

Answer explanation

A byte consists of 8 bits.

How many bytes are there in a kilobyte (KB)?

• a) 1024
• b) 1000
• c) 100
• d) 10

Answer explanation

There are 1024 bytes in a kilobyte (KB).

How many bytes are there in a megabyte (MB)?

• a) 1024
• b) 1000
• c) 100
• d) 10

Answer explanation

There are 1024×1024=1,048,5761024×1024=1,048,576 bytes in a megabyte (MB).

How many bytes are there in a gigabyte (GB)?

• a) 1024210242
• b) 1000210002
• c) 1024
• d) 1000

Answer explanation

There are 1024310243 bytes in a gigabyte (GB).

How many bytes are there in a terabyte (TB)?

• a) 1024310243
• b) 1000310003
• c) 1024210242
• d) 1000210002

Answer explanation

There are 1024410244 bytes in a terabyte (TB).

How many bytes are there in a kibibyte (KiB)?

• a) 1024
• b) 1000
• c) 100
• d) 10

Answer explanation

There are 1024 bytes in a kibibyte (KiB).

How many bytes are there in a mebibyte (MiB)?

• a) 1024210242
• b) 1000210002
• c) 1024
• d) 1000

Answer explanation

There are 1024210242 bytes in a mebibyte (MiB).

How many bytes are there in a gibibyte (GiB)?

• a) 1024310243
• b) 1000310003
• c) 1024210242
• d) 1000210002

Answer explanation

There are 1024310243 bytes in a gibibyte (GiB).