Memory Units Chart

Bit: Binary digits i.e. 0 and 1’s one denotes. “ON” and zero denotes “OFF” every binary digit is called a bit. Has the base 2. A bit is the smallest unit of storage in computer.

Nibble: It is a combination of 4 bits i.e. ½ byte.

Byte: A group of eight bits. It is equivalent to one character. The memory in computer is measured m terms of bytes.

Word: A word is group of bits that is read by computer at a time. It may be of size of 8,16, 32 or 64 bits. It represent data or instructions.

Bit 0 and 1 (Binary digits)

1 Byte = 1 character (8 bits)

1 Nibble = 4 Bits

1 Kilo Byte = 1024 Bytes (2 Byte)

1 Mega Byte = 1024 KB (2 byte)

1 Giga Byte = 1024 MB (2 byte)

1 TERA Byte = 1024 GB (2 byte)

1 PETA Byte = 1024 TB (2 byte)

Character: Character can be an alphabet digit or a special symbol.

Field: any of the units of storage that are grouped together from a recessed. Example: Name.

Record: A group of logically related field treated as a unit.

File: A collection of logically related records, Dealt with as a unit. Example pay roll fill  is collection of employs records.