## Bit

The smallest unit the data in a computer system is dubbed Bit (Binary Digit). A bit has actually a solitary binary value, either 0 or 1. In most computer systems, there are eight bits in a byte. The value of a little bit is commonly stored together either over or listed below a designated level of electric charge in a solitary capacitor within a storage device.

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## Nibble

Half a byte (four bits) is called a nibble.

## Byte

In most computer systems, a byte is a unit of data the is eight binary number long. A byte is the unit most computers use to represent a character such as a letter, number or typographic price (for example, “g”, “5”, or “?”). A byte can additionally hold a wire of bits that have to be used in some larger unit of application purposes (for example, the stream of bits that constitute a visual picture for a program that displays images or the string of bits that constitutes the maker code that a computer system program).

In some computer system systems, four bytes constitute a word, a unit that a computer system processor have the right to be designed to handle successfully as it reads and also processes every instruction. Some computer system processors can handle two-byte or single-byte instructions.

A byte is abbreviated through a “B”. (A bit is abbreviated with a tiny “b”). Computer system storage is commonly measured in byte multiples. For example, an 820 MB difficult drive stop a nominal 820 million bytes – or megabytes – the data. Byte multiples are based upon powers the 2 and also commonly expressed together a “rounded off” decimal number. Because that example, one megabyte (“one million bytes”) is in reality 1,048,576 (decimal) bytes.

## Octet

In part systems, the term octet is offered for an eight-bit unit instead of byte. In plenty of systems, four eight-bit bytes or octets kind a 32-bit word. In such systems, accuse lengths are sometimes expressed together full-word (32 bits in length) or half-word (16 bits in length).

## Kilobyte

A Kilobyte (kb or Kbyte) is approximately a thousand bytes (actually, 2 to the 10th power, or decimal 1,024 bytes).

## Megabyte

As a measure up of computer processor storage and also real and also virtual memory, a megabyte (abbreviated MB) is 2 to the 20th strength byte, or 1,048,576 bytes in decimal notation.

## Gigabyte

A Gigabyte (pronounced Gig-a-bite with tough G’s) is a measure of computer system data warehouse capacity and is “roughly” a billion bytes. A gigabyte is two to the 30th power, or 1,073,741,824 in decimal notation.

## Terabyte

A Terabyte is a measure up of computer storage capacity and is 2 to the 40th power of 1024 gigabytes.

## Petabyte

A Petabyte (PB) is a measure of storage or warehouse capacity and also is 2 to the 50th strength bytes or, in decimal, roughly a thousands terabytes (1024 terabytes).

## Exabyte

An Exabyte (EB) is a huge unit of computer data storage, two to the sixtieth power bytes. The prefix exa method one billion billion, or top top quintillion, i beg your pardon is a decimal term. 2 to the sixtieth strength is actually 1,152,921,504,606,846,976 bytes in decimal, or rather over a quintillion (or ten to the eighteenth power) bytes. The is typical to say the an Exabyte is roughly one quintillion bytes. In decimal terms, one Exabyte is a exchange rate gigabytes.

## Zettabyte

A Zettabyte (ZB) is equal to one sextillion bytes. It is typically abbreviated ZB. In ~ this time, no computer system has one Zettabyte that storage. It has 1024 Exabytes.

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## Yottabyte

A Yottabyte is same to one septillion bytes. The is commonly abbreviated YB. At this time, no computer system has one Zettabyte that storage. It has actually 1024 Zettabytes.