Memory measurement Units of Computer | with full form

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Memory measurement Units of Computer | with full form

Computer memory measurement units are used in measuring the file size of data.

The term Byte was invented by “Werner Buchholz” in June 1956 during the early design phase IBM Stretch computer, which had addressing to the bit and variable field length (VFL) instructions with a byte size encoded in the instruction. Source Wikipedia.

Many programming languages defined the data type as byte like C, C++, Java, etc.

In data transmission systems, the byte is defined as a contiguous sequence of bits in a serial data stream representing the smallest distinguished unit of data

Byte, is the smallest unit of computer storage and processing . A byte contains eight bits and each of it consist 0 or 1.

The Yottabyte is a multiple of the unit byte for digital information. The prefix yotta indicates multiplication by the eighth power of 1000 or 1024 in the International System of Units (SI), and therefore one yottabyte is one septillion (long scale quadrillion) bytes.

The unit symbol for the yottabyte is YB. The yottabyte, adopted in 1991, is the largest of the formally defined multiples of the byte.

Yottabyte is largest unit of computer storage and it can store data up to 1,208,925,819,614,629,174,706,176 Bytes.


Below table describe the detailed units with their full form

UnitsFull formDetails size
KBKilobyte1,024 Bytes
MBMegabyte1,048,576 Bytes
GBGigabit1 billion bits
GB Gigabyte 1,073,741,824 Bytes | One billion Bytes
TBTerrabyte1024 GB, 1,048,576 MB, 8,388,608 KB, 1,099,511,627,776 Bytes and 8,796,093,022,208 bits.
PBPettabyte1024 TB, 1,048,576 GB, 1,073,741,824 MB, 1,099,511,627,776 KB, 1,125,899,906,842,624 Bytes and 9,007,199,254,740,992 bits.
EBExabyte1024 PB, 1,048,576 TB, 1,073,741,824 GB, 1,099,511,627,776 MB, 1,125,899,906,842,624 KB, 1,152,921,504,606,846,976 Bytes and 9,223,372,036,854,775,808 bits.
ZBZettabyte1024 EB, 1,048,576 PB, 1,073,741,824 TB, 1,099,511,627,776 GB, 1,125,899,906,842,624 MB, 1,152,921,504,606,846,976 KB, 1,180,591,620,717,411,303,424 Bytes and 9,444,732,965,739,290,427,392 bits
YBYottabyte1024 ZB, 1,048,576 EB, 1,073,741,824 PB, 1,099,511,627,776 TB, 1,125,899,906,842,624 GB, 1,152,921,504,606,846,976 MB, 1,180,591,620,717,411,303,424 KB 1,208,925,819,614,629,174,706,176 Bytes and 9,671,406,556,917,033,397,649,408 bits

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