Memory

Terms Related to Computer Memory Measurement

The data is measured using some unit in computer terminology, they are called Nibble, Bit, Byte, Kilobyte, Megabyte, Gigabyte, etc.

Bit: It stands for a Binary digit, which is either 0 or 1.

1Bit = Binary Digit.

Byte: A byte is approximately one character (letter ‘a’, number’1′, symbol ‘?’,etc.) Also a group of 8 bits is called a byte.

8 Bits = 1 Byte = 2 Nibble

Nibble: 4 bits make one nibble.

Kilobyte(KB): In memory, a group of 1024 bytes is called a kilobyte.

1024 Bytes = 1 KB (Kilobyte)

Megabyte(MB): In memory, a group of 1024 kilobytes is called a megabyte. It is some times used, less precisely, to mean 1 million bytes or 1000 KB.

1024 KB = 1 MB (Megabyte)

Gigabyte(GB): In memory, a group of 1024 megabytes is called a gigabyte. It is sometimes used, less precisely, to mean 1 billion bytes or 1000 MB  Now, a number of companies manufacture memory chips in terms of Megabyte such as 64 MB 128 MB,256 MB, 1.2 GB etc.

1024 MB = 1 GB (Gigabyte)

Terabyte(TB): A terabyte,(exactly 2 power 40 bytes)(2 power 10 GB), is approximately a trillion (10 power 12 bytes).

1024 GB = 1 TB (Terabyte)

Petabyte (PB): One petabyte of information equal to 1000 terabytes or ( 10 power 15 bytes).

1024 TB = 1 PB (Petabyte)

Exabyte (EB):  One exabyte of information equal to 1000 petabytes or 10 power 18 bytes.

1024 PB = 1 EB (Exabyte)

Zettabyte (ZB): One zettabyte of information equal to 1000 exabytes or 10 power 21 bytes.

1024 EB = 1 ZB (Zettabyte)

1024 ZB = 1 YB ( Yottabyte)

1024 YB = 1 BB (Brontobyte)

1024 BB = 1 Geopbyte

 

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