purpose and function of the cpu update

8/10/2019 Purpose and Function of the CPU Update

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PURPOSE AND FUNCTION OF

THE CPU


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A microprocessor is an integrated circuit thatcontains all the functions of a central processing unitof a computer. This is covered by a heat sink, which isa piece of metal used to conduct the heat out, and a

fan is on top blowing away the heat

IN A COMPUTER WHAT COVERS

THE MICROPROCESSOR?


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Because it is doing millions of calculations per second so it prevents it gettingover heated and damaged

WHY IS THIS NEEDED?


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CPU stands for central processing unit and is the main core of a computerwhere every command runs through and is routed to its appropriate location.

THE MICROPROCESSOR

CONTAINS INTEGRATED

CIRCUITS THAT MAKE UP THE

CPU. WHAT DOES CPU STAND

FOR?


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The CPU is like the brains of the computer - every instruction, no matter howsimple, has to go through the CPU. So let's say you press the letter 'k' on your

keyboard and it appears on the screen - the CPU of your computer is what

makes this possible. The CPU is sometimes also referred to as the centralprocessor unit, or processor for short.

CPU- WHAT DOES IT DO?


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DESCRIBE THEFUNCTIONS OF THESE

COMPONENTS OF THECPU:


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controls the fetching of instructions from the main memory and the use ofthese instructions. Among other tasks carried out are the control of input and

output devices and the passing of data to the Arithmetic/Logical Unit for

computation.

THE CONTROL UNIT


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An ALU performs basic arithmetic and logic operations. Examples ofarithmetic operations are addition, subtraction, multiplication, and division.

Examples of logic operations are comparisons of values such as NOT, AND,

and OR.

THE ARITHMETIC AND LOGIC

UNIT (ALU)


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A register is the lowest level of data storage in a computer. Registers also havethe lowest read/write time of all types of memory in your computer, making

them idea to perform small, repeated calculations.

Of course, each CPU has a limited number of registers, so they can only beused for very short term data storage while that data is being processed.

REGISTERS


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The first thing is fetch. This is to fetch some instructions(programs) and store them in the register. . For this tohappen the CPU makes use of a vital hardware path

called the address bus. The data then travels along this.

The next step is decode. It needs to make sense of the

instructions it has just received. The CPU is designed tobe able to process specific commands. These are called

the instruction set of the CPU

Finally execute. This means that the CPU processingtakes place. The instructions are carried out upon the data

(executed). This is then stored in another register.

LIST AND DESCRIBE THE

STAGES OF THE FETCH-

DECODE-EXECUTE CYCLE.


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A TV uses microprocessors

A stereo

A washing machine

A clock radio

Fridge

Microwave

Dishwasher

LIST THREE COMMON HOUSEHOLD

DEVICES, OTHER THAN COMPUTERS,

WHICH CONTAIN MICROPROCESSORS.

Bread maker Printer

Car Router

Mobile phone

Landline phone Stereo Stove


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The central processing unit of a

computer consists of severalfunctional units. Describe thefunctions of the

following


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Defi-Link Control Unit II is a necessary controller to install Defi-Link Meters,Defi-Link Meter BFs, and Defi-Link Displays. Up to 7 gauges and displays can

be connected and controlled by one Control Unit II. The name of the

connection system is Defi-Link System.

THE CONTROL UNIT 2


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. This is to fetch some instructions (programs) and store them in the register. .For this to happen the CPU makes use of a vital hardware path called the

address bus. The data then travels along this.

THE FETCH STAGE


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. It needs to make sense of the instructions it has just received. The CPU isdesigned to be able to process specific commands. These are called the

instruction set of the CPU

THE DECODE STAGE


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This means that the CPU processing takes place. The instructions are carriedout upon the data (executed). This is then stored in another register.

THE EXECUTE STAGE

purpose and function of the cpu update

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