IAS Computer

Question 1

IAS Computer

Answer 1

Stored-program concept

Question 2

IAS Computer connection

Answer 2

The IAS computer links up using REGISTERS.

Question 3

Registers

Answer 3

Memory Buffer Register (MBR)
Memory Address Register (MAR)
Instruction Register (IR)
Instruction Buffer Register (IBR)
Program Counter (PC)
Accumulator (AC) & Multiplier Quotient (MQ)

Question 4

Instruction Cycle

Answer 4

Fetch Cycle
Execute Cycle

Question 5

Main three key concepts:

Answer 5

Single read–write memory (Data and Instructions)

Addressable Memory

Execution occurs in a sequential fashion (unless explicitly modified) from one instruction to the next.

Question 6

Hardwired Program

Answer 6

Data > Sequence of arithmetic and logic functions > Results

Question 7

Hardwired Program VS Software

Answer 7

Instruction Codes > Instruction Interpreter
:
Control Signals
:
Data > General-purpose arithmetic and logic functions > Results