- It is the amount of data that can be stored in the storage unit.
- The storage capacity are expressed in terms of Bytes.
Following are the main memory storage units:
| Sr. No. | Unit | Description |
|---|---|---|
| 1 | Bit (Binary Digit) | A binary digit is logical 0 & 1 representing a passive or an active state of a component in an electric circuit. |
| 2 | Nibble | A group of 4 bits is called nibble. |
| 3 | Byte | A group of 8 bits is called byte. A byte is the smallest unit, which can represent a data item or a character. |
| 4 | Word | A computer word like a byte, is a group of fixed number of bits processed as a unit which varies from computer to computer but is fixed for each computer. The length of a computer word is called word-size or word length and it may be as small as 8 bits or may be as long as 96 bits. A computer stores the information in the form of the computer words. |
Few higher storage units are the following:
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