H2 CS - Exam Revision

What is an algorithm?

• A chart showing the flow of a series of events

• Step-by-step instructions used to solve a problem

• A decision arrived at by following instructions

• A computer program that follows a chart

What is pseudocode?

• Simplified programming language, that is not a specific language
• Complicated programming language
• Simple programming language, which is linked to a specific language
• A type of cheese

Which of the following best describes abstraction?

• Removing all of the unimportant bits of a problem.

• Breaking the problem down into manageable chunks.

• A logical way of getting from the problem to the solution.

Memory used to make up for the difference in speed between two internal components.

• Niche

• Cash

• Cache

• Register

The part of the CPU that performs calculations and logic operations

• Register

• Control Unit

• Clock

• Arithmetic/logic unit (ALU)

A storage location inside the CPU used to hold an instruction, an address or other single item of data.

• Control Unit

• Arithmetic/Logic Unit

• Register

• Clock

The part of the CPU that organises the actions of the other parts of the CPU

• Register

• Control Unit

• Arithmetic/Logic Unit

• Clock

An electronic device inside a CPU that 'ticks' at regular intervals and is used to synchronise the actions of the other parts of the CPU

• Arithmetic/Logic Unit (ALU)

• Register

• Control Unit

• Clock

A temporary store for data and instructions (programs)

• Main Memory/random access memory (RAM)

• Memory Address

• Solid Sate Drive

• Cloud Storage

Memory that is erased when the power is turned off.

• Read-only memory (ROM)

• Cloud storage

• Non-Volatile

• Volatile