What is the purpose of embedded systems?

To perform a dedicated function within a larger mechanical or electrical system

To replace the central processing unit in computers

To increase the cache size of the CPU

To enhance the clock speed of the CPU

What is the role of the PC (Program Counter) in the CPU?

Retrieve the address of the next instruction from RAM

Store the result of computations

Copy the address from the PC, point towards the assigned RAM address

What does the MAR (Memory Address Register) do during the Fetch stage?

Copy the address from the PC, point towards the assigned RAM address

Retrieve instruction/data from RAM at the assigned address

Store the result of computations

Which component is responsible for retrieving the instruction or data from RAM at the assigned address?

CIR (Current Instruction Register)

What is the function of the ALU (Arithmetic Logic Unit) in the CPU?

Retrieve the address of the next instruction from RAM

What is the primary purpose of a CPU in a computer system?

To perform calculations and execute instructions

To provide external connectivity to peripheral devices

To store large amounts of data for long-term usage

To enhance the audio and video performance of the system

Which of the following is a function of a register within the CPU?

To act as a temporary storage location for data and instructions

To increase the overall storage capacity of the computer

To improve the graphics quality of computer games

To supply power to the computer system

What is the primary function of the CPU in a computer system?

To fetch and execute instructions stored in memory

To store large amounts of data for long-term use

To provide power to computer components

Which two major components make up the CPU, and what is the function of the ALU?

The ALU carries out arithmetic and logic instructions, and the Control Unit coordinates the CPU activities.

The ALU performs data storage, and the Control Unit manages power supply.

The ALU controls peripheral devices, and the Control Unit executes instructions.

The ALU manages memory access, and the Control Unit performs arithmetic operations.

What is a register in the context of CPU architecture?

A special fast memory location in the CPU

A device that controls the input/output operations

A program that manages the CPU's operations

A part of the hard drive that stores CPU instructions

What does the term "clock speed" in the context of CPU performance refer to?

The speed at which the CPU can execute instructions

The amount of heat the CPU generates

The number of tasks the CPU can perform simultaneously

What are "processor cores" in a CPU primarily responsible for?

Allowing the CPU to perform multiple tasks at once

Increasing the CPU's clock speed

Storing frequently used data for quick access

Enhancing the CPU's graphics processing capabilities

The "cache" in a CPU is used to:

Store frequently used data for quick access

Connect the CPU to the motherboard

Increase the number of processor cores

Regulate the CPU's power consumption

What does cache size refer to in a CPU?

Memory on the CPU that is faster than RAM but slower than registers

The total number of transistors in the CPU

The amount of disk space used by the CPU

What does the number of cores in a CPU indicate?

The number of duplicate processing units within a single CPU

The frequency at which the CPU operates

The amount of cache available in the CPU

The speed at which the CPU can access the RAM

What does the clock speed in a computer determine?

The speed at which instructions are processed

Which of the following statements is true regarding clock speed?

A higher clock speed means faster processing of instructions.

A lower clock speed means faster processing of instructions.

Clock speed has no impact on how instructions are processed.

A higher clock speed results in slower processing of instructions.

If a processor has a speed of 1 Gigahertz (GHz), how many cycles per second is it performing?

1,000,000,000 cycles per second

What is a dual-core processor?

A processor with two processors in the same integrated circuit linked together

A processor with two separate chips working independently

A processor that can perform four instructions at the same time

A single processor that operates at double the speed of a normal processor

What advantage does a dual-core processor have over a single-core processor?

It can perform two instructions at the same time

It operates at double the clock speed

Why might software not always perform better on a dual-core processor compared to a single-core processor?

Because the software may not be optimized to take advantage of both cores

Because dual-core processors are slower

Because dual-core processors consume more power

Because single-core processors have better integrated circuits

What is a quad-core processor?

A processor with four linked processors

A processor with two linked processors

A processor that operates at four times the clock speed of a single-core processor

A processor that can perform eight instructions at the same time

What is cache memory?

A small amount of very fast, expensive memory in the CPU

A large amount of slow, cheap memory in the CPU

A type of main memory used for temporary storage

A permanent storage device connected to the CPU

Why is cache memory useful for recently/frequently used data?

Because it can be accessed faster than regular main memory (RAM)

Because it is cheaper than main memory

Because it can be accessed slower than main memory

Because it has a larger storage capacity than main memory

Why is RAM considered slower compared to cache memory?

Because it is further away from the processor and takes longer to access

Because it is physically closer to the processor

Because it has a larger capacity

Because it is faster to write data to RAM than to cache

What is the benefit of storing program instructions and data in cache memory?

It speeds up execution by having frequently needed instructions readily available

It increases the storage capacity of the program

It makes the retrieval of data from RAM faster

It slows down the processor to manage heat generation

How does cache memory improve the performance of a 'while' loop in a program?

By storing the loop instructions in cache to speed up execution

By executing the loop only once

By transferring the loop execution to RAM

By permanently storing the loop instructions in the processor

Where is Level 3 cache usually located?

On the CPU and shared between all cores

Outside the CPU on the motherboard

Which level of cache is shared between all the cores on the processor?

All levels of cache are shared equally

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GCSE CPU Components

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Computers

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11th Grade

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Practice Problem

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Hard

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To increase the clock speed of the CPU

To connect multiple CPUs for parallel processing

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GCSE CPU Components

58 questions

Which of the following is not a component inside a CPU?

What is the function of the Control Unit (CU) in a CPU?

What does the Arithmetic Logic Unit (ALU) do?

Which register holds the address for the next instruction to be executed by the CPU?

What is the purpose of the Memory Address Register (MAR)?

What is the role of the Accumulator (ACC) in the CPU?

What is the function of cache in a CPU?

Which of the following is NOT a common characteristic of CPUs that affects their performance?

What is the purpose of embedded systems?

What is the role of the PC (Program Counter) in the CPU?

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