Data Units In Computer Systems | Computer Science Revision
Data units in computer systems Bit. This is a single unit of memory and can only store 2 possible binary values, either 0 or 1. Nibble. A nibble is a unit of memory made up of 4 bits. ... Byte. A byte is a unit of memory made up of 8 bits. ... Kilobyte. 1024 bytes are called a kilobyte (kB). ... Megabyte. 1024 kilobytes are called a megabyte (MB). ... Gigabyte. ... Terabyte. Data units in computer systems Bit This is a single unit of memory and can only store 2 possible binary values, either 0 or 1. Nibble A nibble is a unit of memory made up of 4 bits . This means it can store 16 possible binary values, 0000 to 1111. Numbers encoded using the binary coded decimal (BCD) system use 1 nibble to encode each digit of the number (rather than converting the whole number into binary). For example, to encode the denary number 75 using the BCD system would mean the 7 would be encoded as 0111 and the 5 as 01...