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Worksheets1.1 Lesson 2 The CPU & von Neumann
Total questions: 20
Worksheet time: 11mins
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 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
Arithmetic part and Logic part
Describe the tasks that the control unit carries out
Fetches the data/instructions, decodes it and sends the signals via buses to the hardware components.
Carries out calculations and comparisons, to see if one value is larger than another.
Describe the tasks that the arithmetic and logic unit carries out
Fetches the data/instructions, decodes it and sends the signals via buses to the hardware components.
Carries out calculations and comparisons, to see if one value is larger than another.
According to the von Neumann model, _______ are stored in memory.
only data
only programs
data & programs
neither data nor programs
The Program Counter
Stores the address of the next instruction in memory
Stores the address of where the next item will be fetched from
Stores data fetched from memory, or waiting to be stored in memory
Stores the result of arithmetic calculations
Memory Data Register (MDR)
Stores the address of the next instruction in memory
Stores the address of where the next item will be fetched from
Stores data fetched from memory, or waiting to be stored in memory
Stores the result of arithmetic calculations
Memory Address Register (MAR)
Stores the address of the next instruction in memory
Stores the address of where the next item will be fetched from
Stores data fetched from memory, or waiting to be stored in memory
Stores the result of arithmetic calculations
Which of the following has the largest memory?
RAM
Cache
