OS, MsOffice

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OS, Ms-Office Internet
D. Kalidas Manager Technical CSC Computer
Education (P) Ltd
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Introduction To Computer
What Is Computer ? It comes from the word
Compute Difference Between A Computer
Calculator
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Father Of Computer
Charles Babbage 1822 Difference Engine 1842
Analytical Engine
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Father Of Computer
1822 Difference Engine 1842 Analytical
Engine
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Characteristics of Computer

• Speed
• Accuracy
• Diligence Free from monotony, tiredness
• Versatility
• Storage Capacity
• No I.Q
• No Feeling

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Computer Generation

• First Generation (1942 1955)
• Second Generation (1955 1964)

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Computer Generation

• 3) Third Generation (1964 1975)
• 4) Fourth Generation SSI (Small Scale
  Integration)
• - LSI (Large Scale Integration)
• 5) Fifth Generation Artificial Intelligence

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Classification of Computer

• Digital Computers
• Analog Computers
• Hybrid Computers

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Laptop
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Basic Computer Operation
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Input Devices
1) Keyboard
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Input Devices
2) Joystick
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Input Devices
3) Light Pen
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Input Devices
4) Mouse
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Input Devices
4) Touch Pad
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Input Devices
5) MICR (Magnetic Ink Character Recognition)
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Input Devices
6) Bar Coding
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Input Devices
7) Scanner
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Input Devices
8) Digital Camera
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Output Devices
1) Monitor CRT - LCD
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Output Devices
2) Printers - Daisy Wheel Printer - Line
Printer
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Output Devices
2) Printers - Dot Matrix Printer
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Output Devices
2) Printers - Ink Jet Printer
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Output Devices
2) Printers - Laser Printer
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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)

EPROM
RAM
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Secondary Storage Device
Floppy Disk (FDD)
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Secondary Storage Device
Hard Disk (HDD)
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Secondary Storage Device
CD Drive / DVD Drive
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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)
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Hardware Software
Hardware Physical Components of a
computer Software Set of Programs Or
instruction Written By The Users
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Concept Of Operating System
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Operating System
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Concept Of Operating System

• Optimizes man-machine capabilities
• Integrated system of programs
• Supervises operations of CPU
• Controls Input / Output

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Inside The System Unit
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Inside The System Unit
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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.

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Internet
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Internet
Internet stands for Interconnected Network
Connected Through Telephone Wires. The Internet,
a network of networks, is popularly called the
net.
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History of Internet
1969 ARPANET (Advanced Research Projects Agency
Network) 1980 NSFNET (National Science
Foundation NET)
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Requirement For Connecting To The Internet

• Modem
• Telephone Line
• Subscription with Interest Service Provider (ISP)
• Web Browser

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Types of Modem

• Internal Modem
• External Modem

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Web Browser

• Software Application used to locate and display
  the web page
• Netscape Navigator
• Internet Explorer
• Fire Fox
• Mozilla

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Web Page
A web page is a document on the Web. Web Pages
can include text, pictures, sound and video.
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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
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Home Page
First Page of information when the website is
typed Typically contains introductory
information about the website
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Hyperlink
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 Example
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URL
Uniform Resource Locator Each web page has a
unique address called URL You can instantly
display the webpage if we know the
URL Example www.iteducationjobs.com www.rediffma
il.com www.tn.nic.in www.gmail.com
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Search Engines
A search engine is a program that searches
through a collection of web pages for particular
information Examples www.altavista.com www.althe
web.com www.google.com www.hobot.lycos.com www.inf
oseek.com
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Electronic Mail
Exchange electronic mail (e-mail) with people
around the world. E-Mail Address Username_at_dom
ainname Eg kalidas_at_iteducationjobs.com
das_at_gmail.com kalidas_dk_at_rediffmail.com
kalidas87_at_yahoo.co.in
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Parts Of A Message

• From
• To
• Subject
• CC
• BCC
• Message

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MS-OFFICE
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MS-OFFICE

• MS-OFFICE
• MS-Word
• MS-Excel
• MS-PowerPoint
• MS-Outlook Express

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THANK YOU