1/10/00
COM1100-Winter2000-Yuhong Yin Northeastern University
4
THE STORED PROGRAM CONCEPT
The computer's ability to call in instructions
and follow them is known as the stored program
concept.
lInstructions are copied into memory from a
disk, tape or other source before any data can be processed.
lThen instructions are copied from memory into
control unit circuit and matches against the built-in
set of instructions.
lIf the instruction is valid, the processor
carries it out. If not, the computer comes to an abnormal end.