Font size
Worksheets1.1 CPU & VON NEUMANN ARCHITECTURE
Total questions: 10
Worksheet time: 5mins
What is the main purpose of the CPU?
To Fetch, Decode and Execute Instructions (in MEMORY).
To perform calculations.
To render graphics on a screen.
To manage the computer system.
What is the main feature of the von Neumann Computer architecture?
There is a single PRIMARY MEMORY for both data and instructions.
The model as a single CPU
The instructions are stored in PRIMARY MEMORY
Data is stored in SECONDARY STORAGE
What are the MAIN COMPONENTS of the CPU? (Tick all that are correct).
ALU
CU
Registers
Cache MEmory
BIOS
Which of these are REGISTERS in the CPU? (Tick ALL that are correct)
Accumulator
ALU
Program Counter
Memory Address Register
Control Bus Register
Tick all options that happen in the FETCH CYCLE?
PC is incremented
The Instruction at the MAR address is read from RAM
The PC value is copied to the MAR
The instruction in the IR is decoded
The value in the MDR is written to the address in the MAR.
Tick all options that happen in the DECODE CYCLE?
PC is incremented
The Instruction at the MAR address is read from RAM
The PC value is copied to the MAR
The instruction in the IR is decoded by the CU
The value in the MDR is written to the address in the MAR.
Tick all options that happen in the EXECUTE CYCLE?
IR is incremented
The data at the MAR address is read from RAM
The ALU performs any calculations required on the ACC
The instruction in the IR is decoded by the CU
The value in the MDR is written to the address in the MAR.
Increasing which of these can improve system performance? (Tick all that apply)
Cache Size
Primary Memory (RAM)
Address bus width
Number of Cores
System Clock Speed
Which of these best defines an embedded system?
A computer system
A general purpose computer system
A dedicated computer system built into a device
A portable computer system
A computer system with no operating system
Which of these are embedded systems? (tick all that apply).
Desktop
iPad
Sky Box
Washing Machine
SAT NAV
