It is an adjective used to describe integers, memory addresses or other data units that comprise up to 64 bits (8 octets) wide, or to refer to a CPU and ALU architecture based on registers, address bus or data bus. that width.

It is an adjective used to describe integers, memory addresses or other data units that comprise up to 64 bits (8 octets) wide, or to refer to a CPU and ALU architecture based on registers, address bus or data bus. that width.
