architecture A technique for constructing a processor from

modules, each of which processes one bit-field or "slice" of

an operand. Bit slice processors usually consist of an

ALU of 1, 2, 4 or 8 bits and control lines (including

carry or overflow signals usually internal to the CPU).

For example, two 4-bit ALUs could be arranged side by side,

with control lines between them, to form an 8-bit ALU. A

sequencer executes a program to provide data and control

signals.