Von Neumann Architecture

Question 1

Who was Mr Von Nuemann

Answer 1

He was a scientist who had an idea of how to create a computer that was far easier to change (AKA Von Nuemann architecture)

Question 2

What is Von Nuemann Architecture

Answer 2

It is where both the data and software that are currently being used are stored in RAM

Question 3

Draw a diagram of the Von Nuemann architecture

Answer 3

Look up online

Question 4

Name 3 features for Von Nuemann architecture

Answer 4

1. There is enough memory available to hold both programs and data.
2. There is a Control Unit responsible for handling the movement of instructions and data around the computer
3. Data and instructions are carried on buses

Question 5

What does the memory data register do

Answer 5

In order for the CPU to fetch an instruction from main memory (RAM), the instruction is temporarily stored in a special register called the Memory Data Register (MDR).

Question 6

What does the memory address register do

Answer 6

Every instruction or data in the RAM is located at a specific location. This location has an unique address. The address of the data or instruction being accessed is temporarily stored in the Memory Address Register.

Question 7

Draw a diagram of registers in a CPU

Answer 7

Look online

Question 8

What is an accumulator?

Answer 8

The Accumulator is used to temporarily store data whilst calculations are being performed within the Arithmetic Logic Unit (ALU)