Simple definitions

Question 1

CPU

Answer 1

The main component in a computer
for processing data and instructions.

Question 2

CU

Answer 2

Directs the flow of instructions and/or
data and coordinates the other parts
of the CPU. It generates clock ticks.

Question 3

ALU

Answer 3

performs all the
mathematical calculations / logical
operations in the CPU.

Question 4

Cache

Answer 4

Incredibly fast, but very expensive
volatile memory used by the CPU.

Question 5

Registers

Answer 5

Fast access storage locations found
on the CPU where data or control
information is temporarily stored.

Question 6

Program
counter (PC)

Answer 6

A counter that keeps track of the
memory address of the instruction to
be executed next.

Question 7

Clock speed

Answer 7

The number of FDE cycles that a CPU
can carry out per second.

Question 8

Cores

Answer 8

Some processors have multiple
processors (cores) which can work in
parallel, sequentially or can multitask.

Question 9

Controller

Answer 9

manages the execution of instructions

Question 10

ALU

Answer 10

processes and
manipulates data

Question 11

Register

Answer 11

fast access temporary data store

Question 12

Internal mem

Answer 12

fast access memory on the CPU