STM OCR GCSE Computer Science: Section 1, Test 2

ROM is...

• ... volatile

• ... non-volatile

• ... caring

Hard disk drives are a type of...

• ... primary storage

• ... secondary storage

• ... tertiary storage

• ...

True or False? "SSDs experience the same fragmentation problems as HDDs"

• True

• False

Clock speed is...

• ... the number of instructions that a CPU can process at the same time.

• ... the number of cycles per second that a CPU can carry out.

Cache memory has...

• ... a large capacity that is slow for the CPU to process

• ... a large capacity that is quick for the CPU to process

• ... a small capacity that is quick for the CPU to access

• ... a small capacity that is slow for the CPU to access

RAM is used for...

• ... storing instructions that tell the CPU how to boot up.

• ... archiving information.

• ... storing data, files and programs that are currently in use

• ... storing large amounts of information for a long time

Virtual memory is used when...

• ... RAM is full of data.

• ... the hard drive is full of data.

• ... ROM is full of data.

• ... the Computer is switched off.

What type of utility software scrambles data to stop third-parties from accessing it?

• Defragmentation

• Compression

• Encryption

• Storage

The CPU...

• ...saves all the user's files.

• ... performs calculations only

• ...processes data and instructions when a computer system isn't functioning correctly.

• ...processes data and instructions to make a computer system function correctly.

Which of these are the function of an Operating System (choose more than one)

• Provide a user interface

• Handle file and disk management

• Manage user accounts and security

• Control the CPU and memory resources

• Lets the user turn on the computer