In
computer architecture,
26-bit integers,
memory addresses, or other
data units are those that are 26 bits wide. Two examples of computer processors that featured 26-bit memory addressing are certain second generation IBM
System/370 mainframe computer models introduced in 1981 (and several subsequent models), which had 26-bit physical addresses but had only the same 24-bit virtual addresses as earlier models, and the first generations of
ARM processors.