OS, Ms-Office & Internet
1 / 53

OS, Ms-Office & Internet - PowerPoint PPT Presentation

  • Updated On :

OS, Ms-Office & Internet D. Kalidas Manager – Technical CSC Computer Education (P) Ltd Introduction To Computer What Is Computer ? It comes from the word “Compute” Difference Between A Computer & Calculator Father Of Computer Charles Babbage 1822 – Difference Engine

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

PowerPoint Slideshow about 'OS, Ms-Office & Internet' - niveditha

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Slide1 l.jpg

OS, Ms-Office & Internet

D. Kalidas

Manager – Technical

CSC Computer Education (P) Ltd

Slide2 l.jpg

Introduction To Computer

What Is Computer ?

It comes from the word “Compute”

Difference Between A Computer & Calculator

Slide3 l.jpg

Father Of Computer

Charles Babbage

1822 – Difference Engine

1842 – Analytical Engine

Slide4 l.jpg

Father Of Computer

1822 – Difference Engine

1842 – Analytical Engine

Slide5 l.jpg

Characteristics of Computer

  • Speed

  • Accuracy

  • Diligence – Free from monotony, tiredness

  • Versatility

  • Storage Capacity

  • No I.Q

  • No Feeling

Slide6 l.jpg

Computer Generation

  • First Generation (1942 – 1955)

  • Second Generation (1955 – 1964)

Slide7 l.jpg

Computer Generation

  • 3) Third Generation (1964 – 1975)

  • 4) Fourth Generation – SSI (Small Scale Integration)

  • - LSI (Large Scale Integration)

  • 5) Fifth Generation – Artificial Intelligence

Slide8 l.jpg

Classification of Computer

  • Digital Computers

  • Analog Computers

  • Hybrid Computers

Slide11 l.jpg

Input Devices

1) Keyboard

Slide12 l.jpg

Input Devices

2) Joystick

Slide13 l.jpg

Input Devices

3) Light Pen

Slide14 l.jpg

Input Devices

4) Mouse

Slide15 l.jpg

Input Devices

4) Touch Pad

Slide16 l.jpg

Input Devices

5) MICR (Magnetic Ink Character Recognition)

Slide17 l.jpg

Input Devices

6) Bar Coding

Slide18 l.jpg

Input Devices

7) Scanner

Slide19 l.jpg

Input Devices

8) Digital Camera

Slide20 l.jpg

Output Devices

1) Monitor – CRT - LCD

Slide21 l.jpg

Output Devices

2) Printers - Daisy Wheel Printer

- Line Printer

Slide22 l.jpg

Output Devices

2) Printers - Dot Matrix Printer

Slide23 l.jpg

Output Devices

2) Printers - Ink Jet Printer

Slide24 l.jpg

Output Devices

2) Printers - Laser Printer

Slide25 l.jpg

Storage Device

  • Primary Storage Device

    • ROM (Read Only Memory)

    • PROM (Programmabel ROM)

    • EPROM (Erasable PROM)

    • EEPROM (Electrically EPROM)

    • RAM

  • Secondary Storage Device

    • Floppy Disk (FDD)

    • Compact Disk (CD)

    • Hard Disk (HDD)



Slide26 l.jpg

Secondary Storage Device

  • Floppy Disk (FDD)

Slide27 l.jpg

Secondary Storage Device

  • Hard Disk (HDD)

Slide28 l.jpg

Secondary Storage Device

  • CD Drive / DVD Drive

Slide29 l.jpg

Representing Characters In Memory

8 Bit - 1 Byte

1024 Bye - 1 Kilo Byte (KB)

1024 KB - 1 Mega Byte (MB)

1024 MB - 1 Giga Byte (GB)

1024 GB - 1 Tera Byte (TB)

Slide30 l.jpg

Hardware & Software

Hardware – Physical Components of a computer

Software – Set of Programs Or instruction Written By The Users

Slide33 l.jpg

Concept Of Operating System

  • Optimizes man-machine capabilities

  • Integrated system of programs

  • Supervises operations of CPU

  • Controls Input / Output

Slide36 l.jpg

Computer Virus

Computer virus is a program that is loaded onto your computer without your knowledge and runs against your wishes

  • Activities of Computer Virus?

  • It perform some activities like deleting

    files or disturbing your computer settings.

  • All computer viruses are man made.

  • A simple virus is dangerous because it will quickly use all available memory and bring the system to a halt.

Slide38 l.jpg


Internet stands for Interconnected Network – Connected Through Telephone Wires.

The Internet, a network of networks, is popularly called the net.

Slide39 l.jpg

History of Internet

1969 – ARPANET (Advanced Research Projects Agency Network)

1980 – NSFNET (National Science Foundation NET)

Slide40 l.jpg

Requirement For Connecting To The Internet

  • Modem

  • Telephone Line

  • Subscription with Interest Service Provider (ISP)

  • Web Browser

Slide41 l.jpg

Types of Modem

  • Internal Modem

  • External Modem

Slide42 l.jpg

Web Browser

  • Software Application used to locate and display the web page

  • Netscape Navigator

  • Internet Explorer

  • Fire Fox

  • Mozilla

Slide43 l.jpg

Web Page

A web page is a document on the Web. Web Pages can include text, pictures, sound and video.

Slide44 l.jpg

Web Site

The website is a of one or more related web pages, linked together through a system of hyperlinking.

A website is similar to a magazine

Slide45 l.jpg

Home Page

First Page of information when the website is typed

Typically contains introductory information about the website

Slide46 l.jpg


A hypertext document contains highlighted text that connects to other pages on the web.

When the mouse pointer moved over a hypertext or hiperlink the shape of the cursor changes to a hand sysbol


Slide47 l.jpg


Uniform Resource Locator

Each web page has a unique address called URL

You can instantly display the webpage if we know the URL






Slide48 l.jpg

Search Engines

A search engine is a program that searches through a collection of web pages for particular information







Slide49 l.jpg

Electronic Mail

Exchange electronic mail (e-mail) with people around the world.

E-Mail Address


Eg: kalidas@iteducationjobs.com




Slide50 l.jpg

Parts Of A Message

  • From

  • To

  • Subject

  • CC

  • BCC

  • Message

Slide52 l.jpg



  • MS-Word

  • MS-Excel

  • MS-PowerPoint

  • MS-Outlook Express