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Memory Units
Computer memory is measured in standardized units starting from a bit (a single binary value of 0 or 1). Because computers operate in base-2, these units increase by powers of two, with most units representing 1,024 of the previous unit rather than an exact 1,000.
Standard Units of Memory
- Bit: The smallest unit of data (0 or 1).
- Nibble: A group of 4 bits.
- Byte: A group of 8 bits; this is the basic addressable unit of computer memory.
- Kilobyte (KB): Equal to 1,024 bytes.
- Megabyte (MB): Equal to 1,024 KB (or about 1 million bytes).
- Gigabyte (GB): Equal to 1,024 MB (or about 1 billion bytes).
- Terabyte (TB): Equal to 1,024 GB (or about 1 trillion bytes).
As global data demands have grown, larger units are used to measure massive amounts of information:
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