Stored Program Concept

Stored Program Concept

von Neumann architecture, internal components, fetch-decode-execute cycle

Multiple Choice

Which of these is NOT an objective of this lesson?

• To know about the stored-program concept

• To name hardware components in a von Neumann architecture

• To know about the fetch-execute cycle

• To identify hardware peripherals

Fill in the Blanks

Fill in the Blanks

Multiple Choice

What was the name of the Hungarian-American mathematician who gave his name to modern computer architecture?

• John von Neumann

• Alan Turing

• Tommy Flowers

• Alonzo Church

Multiple Select

Choose all the components found in a von Neumann computer architecture ...

• Processing unit

• Control unit

• Memory

• External storage

• Input/output devices

Multiple Choice

Which is the correct sequence of the machine cycle in a modern von Neumann architecture computer?

• Fetch

  Decode

  Execute

• Fetch

  Execute

  Decode

• Execute

  Decode

  Fetch

• Decode

  Fetch

  Execute

Multiple Choice

What happens during the 'fetch' phase of the processor cycle?

• The next Instruction or data is copied from RAM into the internal registers of the CPU

• Data is written into RAM from the internal registers of the CPU

• The machine code instruction corresponding to the next instruction is determined

• The result of the instruction is calculated inside the ALU

Multiple Choice

Registers inside the CPU are like ...

• very fast-access memory locations

• a place to do calculations

• a control centre for the CPU

• a place to remember commonly used instructions

Multiple Choice

Memory addresses to be accessed are sent along a special connection from the processor to the RAM called the ,,,

• address bus

• control bus

• data bus

• interrupt bus

Multiple Choice

What happens during the 'decode' phase of the processor cycle?

• The next Instruction or data is copied from RAM into the internal registers of the CPU

• Data is written into RAM from the internal registers of the CPU

• The exact machine code instruction corresponding to the current instruction is determined

• The result of the instruction is calculated inside the ALU

Multiple Choice

The internal component of the CPU that performs the decode phase is the ...

• Control Unit (CU)

• Arithmetic Logic Unit (ALU)

• Current Instruction Register (CIR)

• data bus

Multiple Choice

The instruction set of a processor is the ....

• complete list of instructions it knows how to perform

• the program currently loaded into memory

• data stored inside the registers

• operating system controlling how the computer works

Multiple Choice

What happens during the 'execute' phase of the processor cycle?

• The next Instruction or data is copied from RAM into the internal registers of the CPU

• Data is written into RAM from the internal registers of the CPU

• The exact machine code instruction corresponding to the current instruction is determined

• The machine instruction from the instruction set is carried out. This may involve using the ALU.

Multiple Choice

The place inside the processor where calculations and decisions are carried out is the ...

• ALU

• Immediate Access Store

• Cache

• Control Unit

Multiple Select

Choose all the phases of the processor cycle ,,,

• Fetch

• Decode

• Execute

• Return

• Write

Open Ended

Thinking Hard

Now you have finished the lesson, what questions do you still want answered?

(press Shift+Enter to take a new line...)

Poll

How well do you think you have understood this lesson so far?

• None of it

• Some of it

• Most of it

• All of it