Computer storage and memory is often measured in Megabytes (MB) and Gigabytes (GB). Let us understand the evolution of memory.
1.Bit : It is a binary digit that holds only one of two values : 0 or 1.
2.Nibble : A group of 4 bits is called a nibble (For example:1011, 1001, 1111).
3.Byte : A group of 8 bits is called a byte. A byte is the smallest unit, which can represent a data item or a character. (For example : 11101100, 10000001)
Different Units of Memory
Data Measurement | Size
-----------------------------------------------------------------------
Bit | Single Binary Digit
| (1 or 0)
------------------------------------------------------------------------
1 Byte | 8 Bits
1 KiloByte (KB) | 1,024 Bytes
1 MegaByte (MB) | 1,024 KiloBytes
1 GigaByte (GB) | 1,024 MegaBytes
1 TeraByte (TB) | 1,024 GigaBytes
1 PetaByte (PB) | 1,024 TeraBytes
1 ExaByte (EB) | 1,024 PetaBytes
