64-bit

Definitions

Computing

  • data that is transferred sixty-four bits at a time along sixty-four parallel conductors; in a processor this refers to its ability to manipulate numbers that are sixty-four bits long

Electronics

  • Indicative of something dealing with eight-byte, or 64-bit, increments. For example, a 64-bit CPU, which simultaneously processes eight bytes at a time.
http://www.dictionarycentral.com/definition/64-bit.html