INTRODUCTION TO COMPUTERINTRODUCTION TO COMPUTERINTRODUCTION TO COMPUTERINTRODUCTION TO COMPUTER

Instructor : Mrs Halimaton Sa’adiah AriffinE-mail : halimaton@usim.edu.my

Telephone : 06-7987039, Office : MPG, Level 2. No. 1

1. Information Technology

2. Information Communication Technology

3. Information System

4. Computer

5. Data and Information

6. Components of Computer

7. Classification of computer

8. Assignments

http://jobsearchtech.about.com/od/careersintechnology/p/ITDefinition.htm

information technology is the use of computers and software to manage

information.

INFORMATION TECHNOLOGY

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COMMUNICATIONCOMMUNICATION

ICT refers to technologies that provide access to information through telecommunications.

It is similar to Information Technology (IT), but focuses primarily on communication technologies.

This includes the Internet, wireless networks, cell phones, and other communication mediums.

INFORMATION COMMUNICATION TECHNOLOGY

Process in which two or more computers or devices transfer data, instructions and information.

TECHNOLOGYTECHNOLOGY

Technology is the usage and knowledge of tools, techniques, systems or methods of organization in order to solve a problem

INFORMATIONINFORMATION

Conveys meaning and is useful to people

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A System is a set of components that interact to achieve a common goal.

An information System (IS) is a collection of hardware, software, data, people and procedures that work together to produce quality information.

PEOPLE

People are involved in every aspect of an information system.

Users are people who are affected by the information system. If people are going to survive in to day's society they must be users of information.

Users can be classified as direct users and indirect users.

Computer Uses • Business• Entertainment• Education• Medicine

Direct users

Direct users of information systems are people who interact with and are in control of the system. All of the providers of the information services are direct users. Example : system analyst, system managers, operators and data entry personnel.

Indirect Users

Indirect users of an information system never use the system, but its use by other people and affects them. Example : supermarkets use an information system to complete an inventory of goods. When we buy our groceries we are not using the information system, but its use has affected the service we are receiving.

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An electronic device

For data Processing

1. It gathers data (or allows user to input data)2. It process data into information3. It outputs data or information4. It stores data and information

Computer is a data processing device, operating under the control of instructions stored in its own memory . Computer can performs four major functions :

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IN COMPUTER TERMS

Data is a collection of unprocessed items (raw facts) , which can include text, numbers, images, audio and video.

Example :1.Names (Aril Iskandar)2.Date of Birth (11 Mei 1987)3.Place of Birth (Perak - 08)4.Picture ( ) , 5.etc .

Information is data that has been organized or presented in a meaningful fashion and is useful to people.

Example :1.My Card2.Poster3.Database Record

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Hardware is the electronic, and mechanical components of a computer that you can physically touch.

All hardware on the computer helps the computer to perform its various tasks.

These components include :

1.Input devices2.Output devices3.A system Unit4.Storage Devices5.Communication Devices

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Input Devices is any hardware component that allows you to enter data (text , images , sounds) and instructions (user responses , commands) into a computer.

Six widely used input devices are the :

1.Keyboard2.Mouse3.Microphone4.Scanner5.Digital camera6.PC video camera (Web Cam)

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Computer Keyboard contains keys you press to enter typed data and commands into the computer.

Mouse is a small handheld device to control movement of a small symbol on the screen (pointer), and you make responses and commands by any selections from the screen.

Microphone allows a user to speak into the computer to enter data (input sounds) and instructions.

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Scanner converts printed material (such as text and pictures) into a digital form the computer can use.

Digital Camera you take pictures and then transfer the photographed images to the computer or printer instead of storing the images on a traditional film.

PC Video Camera is a digital video camera that allows users to create movie or take still photographs electronically.

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Output Devices is any hardware component that conveys information to one, or more people. They enable you to send processed data out of your computer. This can take the form of text, pictures (graphics), sounds (audio), and video.

Three commonly used output devices :

1.Printer2.Monitor (display screen)3.Speakers

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Printer produces text and graphics on a physical medium such as paper.

Monitor displays text, graphics, and videos on screen.

Speakers allow you to hear music, voice and other audio (sounds).

1. Timeline – Computer History 2. Computer usage (choose only ONE)• In education / finance / government /

healthcare / publishing / manufacturing3. Advantages and Disadvantages of Using

Computers

In a group of four OR five, find information of the following topics and describe them completely with pictorial notes.

Dateline to submit : 10 December 2012