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WorksheetsThe Central Processing Unit
Total questions: 16
Worksheet time: 9mins
What is the primary function of the control unit within the CPU?
It performs arithmetic and logical operations.
It decodes instructions
It stores frequently accessed data for quick retrieval.
It regulates the clock speed of the CPU.
What is the first step of the fetch-decode-execute cycle?
The CPU executes the instruction.
The CPU decodes the instruction.
The CPU fetches the instruction from memory.
The CPU writes the result to memory.
Which component of the CPU is responsible for performing mathematical calculations?
Control unit
Arithmetic logic unit (ALU)
Cache memory
Clock
What is cache memory used for in a CPU?
To store the operating system.
To increase the clock speed.
To temporarily store data that is frequently accessed or needed by the CPU.
To permanently store user data.
What does the clock speed of a CPU determine?
The amount of data it can store.
The number of instructions it can execute per second.
The size of the CPU.
The number of cores in the CPU.
What is the purpose of multiple cores in a CPU?
To increase the clock speed.
To store more cache memory.
To perform multiple tasks simultaneously.
To reduce the physical size of the CPU.
How does cache memory improve CPU performance?
By increasing the number of cores.
By providing faster access to frequently used data.
By expanding the main memory capacity.
By increasing the CPU's clock speed.
What happens during the fetch phase of the fetch-decode-execute cycle?
The CPU performs the operation specified by the instruction.
The CPU stores the result of the computation into memory.
The CPU retrieves the instruction from the main memory.
The CPU prepares the next set of instructions for execution.
Which part of the CPU coordinates the activities of all other parts of the computer?
Arithmetic logic unit (ALU)
Control unit
Cache memory
Clock
What is the advantage of having a CPU with more cores?
It can execute instructions at a higher clock speed.
It can store more data in cache memory.
It can run more applications at the same time without performance degradation.
It can execute a single instruction faster.
Fetch (a) Execute
Central (a) Unit
Which piece of software is responsible for scheduling the instructions that the CPU executes?
BIOS
ROM
Operating System
Afterburner
How many instructions could a CPU carry out each second if it had a clock speed of 3.4GHz
3400
3,400,000
3,400,000,000
340,000
What is the role of the register?
To hold a single instruction while the CPU works on it
To hold multiple instructions that the CPU needs to execute next
To hold frequently used instructions
To keep track of which instruction the CPU is working on
What is the role of the bus in a computer system?
To provide power to the CPU.
To carry data between the CPU and other components.
To increase the clock speed of the CPU.
To store frequently accessed data.
