Computer Memory Measurements
Bits, Bytes, and other Units of Measure for Digital Information.
A bit is a binary digit, the smallest increment of data on a computer. A bit can hold only one of two values: 0 or 1, corresponding to the electrical values of off or on, respectively.
Because bits are so small, you rarely work with information one bit at a time. Bits are usually assembled into a group of eight to form a byte. A byte contains enough information to store a single ASCII character, like “h”.
A kilobyte (KB) is 1,024 bytes, not one thousand bytes as might be expected, because computers use binary (base two) math, instead of a decimal (base ten) system.
Computer storage and memory are often measured in megabytes (MB) and gigabytes (GB). A medium-sized novel contains about 1 MB of information. 1 MB is 1,024 kilobytes, or 1,048,576 (1024×1024) bytes, not one million bytes.
1 Bit – Binary Digit
8 Bits – 1 Byte
1024 Bytes – 1 KB (KiloByte)
1024 KB – 1 MB (MegaByte)
1024 MB – 1 GB (Giga Byte)
1024 GB – 1 TB (Terra Byte)
1024 TB – 1 PB (PetaByte)
1024 PB – 1 EB (ExaByte)
1024 EB – 1 ZB (ZettaByte)
1024 ZB – 1 YB (Yotta Byte)
1024 YB – 1 (Bronto Byte)
1024 Bronto Byte – 1 (Geop Byte)
Now Currently, Geop Byte is the Highest Memory.