Overview of computer system

DEFINITION COMPUTER SYSTEM

• A computer system is defined as combination of components designed to process data and store files.

• A computer system requires hardware, software and a user to fully function.

USER HARDWARE

SOFTWARE

Computer Hardware

HARDWARE

There are three component in hardware:1. Input devices 2. Output devices

3. Storage devices 4.Processor

Input Devices

• Input devices are any electronic device that are connected to a computer and produces input signals such audio, text, video, graphic.

Name : Web camUsed for : Input Video in meeting or conference

Output Devices

• Output is the result of data processing activity when it is presented externally to the system. The output from a computer can be printed or displayed form .

• An output device is hardware that is capable of delivering or showing information to one or more users.

Storage Devices• Information and documents are stored

in a computer storage so that it can be retrieved whenever they are needed later on.

• Computer storage is the holding of data in an electromagnetic form for access by a computer processor.

Processor

• The CPU is an example of a processor. It has the same important as the brain to human being.

Processor• Which processor should you select? The faster the processor, the more expensive the computer

Celeron

Itanium or Xeon

Pentium family

1.3 GHz and up

3.0 GHz and up

2.4 GHz to 3.0 GHz

Up to 2.4 GHz

2.2 GHz and up

Intel Processor Desired Clock Speed

Computer Software

COMPUTER SOFTWARE

SYSTEM SOFTWARE

APPLICATION SOFTWARE

Computer Useruses the computer for any purposes such as work, business

and entertainment.

TEACHERCHILDRENOFFICIER

STUDENTS PARENT BUSSINESS

The End- Q & A -

ACTIVITY : ASSIGNMENT

Discuss in group about example of :-

1. Input Devices

2.Output Device

3. Storage

4. Processor

5. System Software

6. Application SoftwarePresent your work in power point presentation