AQA GCSE Computer Science revision

What is a general purpose computer?

• a computer found in a digital watch

• A computer designed to perform more than one task

• A small computer that forms part of a larger system

What is an embedded system?

• A combination of hardware and software, designed for a specific function within a larger system.

• a set of integrated devices that input, output, process, and store data and information

What is hardware?

• The physical parts that are attached to the motherboard

• The logical components of a computer system

• The physical components of a computer system

What is clock speed measured in?

• Bytes

• Hertz

• Seconds

Which of the following are components of the central processing unit (CPU)?

• Registers, read only memory (ROM) and cache

• Resisters, read only memory (ROM) and arithmetic logic unit (ALU)

• Registers, cache and arithmetic logic unit (ALU)

Which central processing unit (CPU) component makes logical decisions?

• Control unit (CU)

• Cache

• Arithmetic logic unit (ALU)

What is a register?

• A small amount of high speed random access memory (RAM) contained within the processor

• A small amount of high speed read only memory (ROM) contained within the processor

• A small computer that forms part of a larger system

What is a core?

• A second processing unit within a control unit (CU)

• A system that has many processors

• A processing unit within a CPU

What are the three types of bus?

• Address, control and instruction

• Address, control and data

• Address, data and instruction

Which of these statements about Von Neumann architecture is true?

• Only data is stored in main memory

• Only instructions are stored in main memory

• Data and instructions are both stored in main memory