CPU

The CPU fetches instructions from.... and executes those instructions.

• Memory

• ALU

• ROM

• Input Device

The control unit in the CPU does what?

• Sets the speed of the operations

• controls the input and output of data so it goes to the right place

• Controls and monitors the input and output devices

• Controls the ALU

The ALU is found inside the CPU True or False?

• True

• False

What does volatile mean for a computers memory

• Data and instructions remain stored even when the computer is switched off

• Data and instructions may cause the computer to crash

• Data and instructions are lost when the computer is switched off

Which is the fastest kind of memory for the CPU to access?

• Random access memory

• Level-1 cache memory

• Level-2 cache memory

Which of these scenarios is NOT the result of overclocking?

• The computer will end up displaying the incorrect time and date

• Processes might not be completed before the next instruction is carried out

• The CPU could overheat

What is 'cache'?

• It stores program operations and data while a program is being executed

• It executes programs using the fetch-decode-execute cycle

• It is a small amount of memory which is a part of the CPU

What is an algorithm?

• A set of step-by-step instructions

• Software that analyses data

• A hardware device that stores data

What is a variable?

• Data that is stored in a memory location, that cannot be changed

• Data that is stored in a memory location, that can be changed

• Data that is produced by a computer, that cannot be changed

What is pseudocode used for?

• To program every piece of software

• To plan algorithms using a specific programming language

• To plan algorithms using plain English