Computer Science GCSE - AQA - System architecture

The central processing unit (CPU) is the _____ of the computer that carries out

instructions to process data.

• Memory

• Heart

• Brain

• Eyes

What does ALU stand for?

• arithmetic local unit

• arithmetic logic unit

• alternate logic uniform

• alternate logic unit

What does CU stand for?

• Close Up

• Closed Unit

• Control Up

• Control Unit

The von Neumann architecture of a system can be described as

• Storing data and programs in the same memory.

• Storing data and programs in the different memory.

• Processing data and programs in the same cpu.

• Processing data and programs in the different cpu's.

The ________ manages the execution of instructions by making sure that all

the components perform their task at the correct time.

• Clock

• ALU

• Control Unit

• CPU

_______ are small areas of memory in the CPU that hold data and memory

addresses used during the fetch-execute cycle.

• RAM

• Cache

• Registers

• ROM

Match the following

• retrieve next instruction from memory

• Decode

• synchronises tasks

• Clock

• carry out, the instruction

• Control unit

• translate, instruction to work out what it is

• Fetch

• manages the execution of instructions

• Execute