Computing#5-Computer Systems

Question 1

What is a Computer

Answer 1

A machine that processes data(take data,process,then output).

Question 2

What is a computer system

Answer 2

Consists of hardware and software that work together to perform a task/tasks.

Question 3

What is an embedded system

Answer 3

Computer system built into devices,dedicated systems. Often control systems that monitor and control machinery to achieve a result. As it is only dedicated to one task, usually EASIER TO DESIGN, CHEAPER TO PRODUCE AND MORE EFFICIENT THAN A GENERAL PURPOSE COMPUTER.

Question 4

What is the CPU

Answer 4

Processes all data and instructions that make the system work.
Speed depends on CLOCK SPEED, NUMBER OF CORES, CACHE SIZE AND CACHE TYPE.
CPU architecture describes the main components of the CPU and how they interact with each other and other parts of the computer system. Main types of architecture are Von Neumann and Harvard

Question 5

Describe Control Unit(1/5 of CPU main parts)

Answer 5

In Overall control of the CPU. Executes program instructions by following the fetch-decode-execute cycle.
Controls flow of data inside the CPU and outside the CPU.

Question 6

Describe the ALU

Answer 6

Arithmetic Logic Unit. Basically does all the calculations and logic. Accumulator stores result of these calculations

Question 7

Accumulator

Answer 7

Stores the results of the ALU to be used later