A device for converting analog signals into digital ones for subsequent computer processing; sometimes called a "digitizer". A digital to analog (D to A) converter operates in the reverse direction.
address bus
Pathway from memory to processing unit that carries the address(location) in memory to and from which data is transferred.
algorithm
An ordered set of well-defined instructions for the solution of a problem in a finite number of steps.
ALU
Arithmetic and logic unit: a part of the computer that performs arithmetic operations, logic operations, and related operations.
analog data
The representation and measurement of the performance or behavior of a system by continuously variable physical entities such as currents, voltages and so on.