The CPU and FDE

What is a computer?

• A device that only stores data

• A device that only outputs data

• A programmable device that takes in data, processes it into useful information, and then outputs the information

• A device that only processes data

Which of the following is NOT part of the computing cycle described in the image?

• Input

• Process

• Output

• Delete

Which of the following is a characteristic of general-purpose systems?

• Specialised to a specific task/set of tasks

• Limited resources

• Used for many different types of tasks

• Often function without a user

What is a common feature of embedded systems?

• Lots of resources — memory, storage, CPU cores

• Most uses require a user

• Specialised to a specific task/set of tasks

• Used for many different types of tasks

Which type of system often functions without a user?

• General-purpose systems

• Embedded systems

• Both general-purpose and embedded systems

• Neither general-purpose nor embedded systems

What does the central processing unit (CPU) control in a computer?

• Only the input devices

• Only the output devices

• Everything

• Only the storage devices

What does RAM stand for?

• Random Access Memory

• Read Access Memory

• Rapid Access Memory

• Remote Access Memory

Which of the following is true about RAM?

• It is only readable.

• It is only writable.

• It is both readable and writable.

• It is neither readable nor writable.

What happens to the data stored in RAM when the computer is switched off?

• It is saved permanently.

• It is transferred to the hard drive.

• It is lost.

• It is compressed.

Which of the following best describes the speed of RAM?

• It is slow to read/write.

• It is fast to read/write.

• It has moderate read/write speed.

• It has variable read/write speed.