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Von Neumann Architecture

Total questions: 25

Worksheet time: 16mins

Name
Class
Date
1.

According to the von Neumann model, _______ are stored in memory.

a)

only data

b)

only programs

c)

data & programs

d)

neither data nor programs

2.

Which of these are REGISTERS in the CPU? (Tick ALL that are correct)

a)

Accumulator

b)

ALU

c)

Program Counter

d)

Memory Address Register

e)

Control Bus Register

3.
What does MAR stand for?
a)
Main Address Register
b)
Memory Address Register
c)
Massive Address Register
d)
Minimal Age Readable
4.

Tick all options that happen in the FETCH CYCLE?

a)

PC is incremented

b)

The Instruction at the MAR address is read from RAM

c)

The PC value is copied to the MAR

d)

The instruction in the MAR is decoded

e)

The value in the MDR is written to the address in the MAR.

5.

Tick all options that happen in the DECODE CYCLE?

a)

PC is incremented

b)

The Instruction at the MAR address is read from RAM

c)

The PC value is copied to the MAR

d)

The instruction in the MAR is decoded by the CU

e)

The value in the MDR is written to the address in the MAR.

6.

Tick all options that happen in the EXECUTE CYCLE?

a)

PC is incremented

b)

The data at the MAR address is read from RAM

c)

The ALU performs any calculations required on the ACC

d)

The instruction in the MAR is decoded by the CU

e)

The value in the MDR is written to the address in the MAR.

7.
The idea developed in 1945 by Von Neumann of a computer holding both programs and the data used by the programs in memory is called the..?
a)
Stored Program Concept
b)
Memory Program System
c)
Stored Memory Concept
d)
Stored Memory Program
8.
The small high speed storage areas within the memory and processor are known as..?
a)
Registers
b)
Addresses
c)
Cache
d)
Buses
9.

The Program Counter

a)

Stores the address of the next instruction in memory

b)

Stores the address of where the next item will be fetched from

c)

Stores data fetched from memory, or waiting to be stored in memory

d)

Stores the result of arithmetic calculations

10.

Accumulator

a)

Stores the address of the next instruction in memory

b)

Stores the address of where the next item will be fetched from

c)

Stores data fetched from memory, or waiting to be stored in memory

d)

Stores the result of arithmetic calculations

11.

The Control Unit

a)

Controls the flow of data around the CPU and also decodes instructions

b)

Only controls the flow of data around the CPU

c)

Only decodes instructions

d)

Controls how much power is directed to all components within the computer

12.

The Arithmetic Logic Unit (ALU)

a)

Carries out numerical calculations and logical decisions

b)

Calculates the different items of number data stored within the Accumulator and converts them into logical decisions

c)

Calculates graphic data as they are only found within GPU units.

d)

Calculates the flow of execution in a program and decodes instructions into small steps to be carried out by the program counter.

13.
What is the purpose of Cache?
a)
Performs Arithmetic and Logical operations
b)
Decodes and directs instructions to be carried out
c)
Stores frequently used data and instructions
d)
Processes graphical functions
14.
Who developed the idea of a stored program computer and modern computer architecture?
a)
John Von Neumann
b)
Bill Gates
c)
Steve Jobs
d)
Tim Berners-Lee
15.
What connects the processor and memory?
a)
Buses
b)
Cache
c)
NIC
d)
Control Unit
16.
What are the 3 parts of the Von Neumann computer architecture?
a)
Processor (CU & ALU), Memory Unit & Input/Output
b)
Processor, RAM & ROM
c)
Processor, RAM & Hard Disk
d)
Memory (CU & ALU), Hard Disk & Input/Output
17.
Which of these buses is bi-directional?
a)
Data Bus
b)
Control Bus
c)
Address Bus
d)
Cache Bus
18.
What is the CPU’s purpose?
a)
To carry out program instructions
b)
To store data
c)
To compile program code
d)
To output data to the user
19.
Von Neumann architecture is relatively uncommon in today’s computers
a)
True
b)
False
20.
Computer architecture isn’t an actual computer, just a design
a)
True
b)
False
21.
Von Newmann architecture is also known as a ‘stored program computer’
a)
True
b)
False
22.
The Arithmetic Logic Unit is responsible for carrying out calculations and logic comparisons
a)
True
b)
False
23.
There is only ever one accumulator per CPU
a)
True
b)
False
24.
The Control Unit is responsible for handling the movement of instructions and data around the computer
a)
True
b)
False
25.
There must be a way of inputting information and outputting data
a)
True
b)
False

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