What are the benefits of cache memory? Select all that apply

Cache memory can be accessed much faster than main RAM

Cache memory contains frequently used data

Cache memory has multiple layers

What is the third step in the following options describing the fetch part of the cycle?

The address of the next instruction is fetched from memory

The register points to the next instruction

The address of the next instruction is fetched from the register

The address of the next instruction is put into a register

Which CPU in the following options has the third best performance?

Single core processor at 5GHz with 4Mb cache

Quad core processor at 1.5GHz with 2Mb cache

Octa core processor at 1.7GHz with 3Mb cache

Dual core processor at 2.5GHz with 3.5Mb cache

What is the difference between volatile and non-volatile memory?

Volatile memory loses its contents when it is powered off, whereas non-volatile memory does not.

Volatile memory overheats much more quickly than non-volatile memory.

Volatile memory is made from highly reactive materials whereas non-volatile memory is not.

Volatile memory crashes after a short period of usage whereas non-volatile memory does not.

What is the difference between primary and secondary storage?

Primary storage can be directly accessed by the CPU whereas secondary storage can only be accessed indirectly.

Primary storage is volatile whereas secondary storage is non-volatile.

Primary storage is RAM and secondary storage is ROM.

There is no difference in components, it just depends on how close they are to the CPU.

When a computer is turned on, a basic startup routine has to be accessed from a non-volatile source in order to load the OS onto RAM for it to run.

Secure information like passwords and encryption keys need to be safely stored away in ROM.

It's not needed, but we use it often instead of RAM and hard drives because it's cheap.

It is needed to store the OS at runtime.

Why is the BIOS stored on RAM?

Access times for RAM are very low, meaning the computer boots up quickly.

The volatility of RAM means that the BIOS runs quicker.

ROM is too small to hold the BIOS, so RAM is used.

Which of these is not a characteristic of the Von Neumann architecture?

Programs are not stored in memory and are input when needed.

Instructions are fetched and executed sequentially.

There is a single memory and bus system for accessing both data and programs.

What is the function of the clock?

It controlls processor timing and synchronises the CPU operations.

It keeps track of the time of day in non-volatile memory so that time is always tracked.

It times how long CPU operations take for data collecting by manufacturers.

It counts how many times the data and address bus are used.

Which of these operations does the Control Unit not perform?

Regulating and controling of processor timing using the clock

Ensuring instructions are executed in the right order

Which of these is not a component of the processor?

Trick question; they're all components.

An internal connection along which instructions and data move between memory and the processor.

A power connection between the CPU, the motherboard and the power supply.

A cable linking the CPU to the GPU, allowing them to synchronize their operations.

A 4 wheeled form of public transport

What does the program counter hold?

The address of the next instruction to run

The number of times a single program has been run

The number of programs currently used

The number of programs opened in the current usage session

What is a shift operation?

Moving the bits of a piece of data left or right by a certain amount.

Moving a piece of data from one register to another.

Moving a program from secondary storage onto RAM

Moving a program instruction from a register to the CU.

Which of the following is the full form of API?

Application Programming Interpreter

What is the purpose of the bootstrap loader?

A small program used to load the operating system

A small program used to load the BIOS

Stores user data and which is then booted up when needed to be accessed

Controls the execution of instructions and ensures that the correct programs are booted and loaded when required

What are the two main types of compression that compression software employs on?

Discrete Cosine Transform, Fractal compression

Which of these is a disadvantage of Optical media?

Can be easily damaged by excessive sunlight or scratches

They are reliant on magnetic properties and so are affected by magnetic fields

They contain moving parts and thus can be easily damaged when carried or dropped

Which of the following is not an advantage of cloud storage?

It can be accessed independent of whether the user has an internet connection or not

You can access the data stored from anywhere in the word

Your data can be quickly backed up and updated to be accessed from anywhere and any device

Data can be shared easily with people in different locations as well as with high levels of security

Which of the following is true about Solid State Drives(SSD)?

They are often referred to as flash memory / storage

They are reliant on magnetic properties and so are affected by magnetic fields

Their access speeds are faster than that of RAM

What is the purpose of utility software?

To improve the quality of life of the user's experience and to provide housekeeping functionality

To automatically download software updates for the OS

Sets different access rights and privileges for different users

To allow for easier connections between applications and external devices

What is the purpose of disk defragmentation?

Groups separate parts of files and also free disk space, allowing for quicker access times

To remove all unneccesary programs and compress those which which are above a certain size

The partitioning of the file system into zones / groups based off of which parts experience more reads and writes than others

The breaking up of files into fragments so that each individual segment takes up less overall space

What is meant by the term "embedded systems"?

Devices which make use of and contain microprocessors / CPUs to control their function

Systems that control access to a machine, hence embedding authority

Systems which allow for easy accessibility with other pieces of software and devices

A small program that acts as an interface between the computer and the device

AQA GCSE Computer Science - 3.4 Computer Systems

Authored by Mr Ling-Winston

Computers

8th - 10th Grade

Used 73+ times

AQA GCSE Computer Science - 3.4 Computer Systems

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50 questions

Show all answers

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is a Boolean?

A data type that is either True or False

A data type that is either True, False, or And

Another name for an integer

A data type that is either -1 or 1

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What logic gate is this?

And

Not

Nor

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What logic gate is this?

And

Xor

Nor

MULTIPLE SELECT QUESTION

30 sec • 1 pt

For which values of A and B will Z be 1?

A: 0, B: 1

A: 1, B: 1

A: 1, B: 0

A: 0, B: 0

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

In Python, what is the result of:<br /><br />True, True, True == (True, True, True)

True, True, False

True, True, True

True

False

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is the Fetch-Decode-Execute cycle?

The process to ensure instructions in a program are run

A cycle where data is retrieved from the cache

An activity that the CPU does to render graphics

A hacking technique that bypasses secure networks

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which factors affect CPU performance?

Cache memory

Clock speed

Processor cores

Bandwidth size

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AQA GCSE Computer Science - 3.4 Computer Systems

What is a Boolean?

What logic gate is this?

What logic gate is this?

For which values of A and B will Z be 1?

In Python, what is the result of:<br /><br />True, True, True == (True, True, True)

What is the Fetch-Decode-Execute cycle?

Which factors affect CPU performance?

How many Hertz are in one Gigahertz?

What are the benefits of cache memory? Select all that apply

What is the third step in the following options describing the fetch part of the cycle?

Access all questions and much more by creating a free account

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Popular Resources on Wayground

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