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1history.ppt 21-Jan-03
Welocme to Training on
Computer Fundamentals
Andhra Pradesh Academy Of
Rural Development (APARD) Center IT&E-Governance (IT&e-G)
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AN INTRODUCTION TO
COMPUTERS
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3history.ppt 21-Jan-03
DEFINITION
What is a Computer?
A computer is a programmable machine that receives input, stores and automatically manipulates data, and provides output in a useful format.
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4history.ppt 21-Jan-03
Charles Babbage
• English inventor
• 1791-1871
• invented a viable
mechanical computer
equivalent to modern digital
computers
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5history.ppt 21-Jan-03
Babbage’s first computer
built in early 1800’s
special purpose calculator
naval navigation charts
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6history.ppt 21-Jan-03
Major Computers Companies first Computers
Compaq - March 1983 Compaq released
its first computer and the first 100% IBM
compatible computer the "Compaq
Portable."
Dell - In 1985 Dell introduced its first
computer, the "Turbo PC."
Hewlett Packard - In 1966 Hewlett
Packard released its first general
computer, the "HP-2115."
NEC - In 1958 NEC builds its first
computer the "NEAC 1101."
Toshiba - In 1954 Toshiba introduces its
first computer, the "TAC" digital
computer.
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THE LANGUAGE OF COMPUTERS
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Binary Numbers 1 and 0 ‘s
Computers speak binary. Binary language consists of combinations of 1's and 0's that represent characters of other languages (in our case the English language). Don’t make the mistake of thinking that little 1's and 0's are running around inside of the computer. We humans prefer to think of 1's and 0's because it’s easier than visualizing positive and negative current flows or open and closed circuits which is what actually happens inside computers. A combination of eight bits represents one character in our language. One character in our language (eight bits) is referred to as a byte. (For example: 01000001 is a byte that represents an uppercase A; each 1 or 0 is a bit.)
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9history.ppt 21-Jan-03
Binary Numbers
Kilobytes, Megabytes, and Gigabytes
If you understand that a byte is one character in our
language, you’ve got it made because:
1000 bytes = 1 kilobyte
(1,000 characters = 1 kilobyte)
1,000,000 bytes = 1 megabyte
(1,000,000 characters = 1 megabyte)
1,000,000,000 bytes = 1 gigabyte (1,000,000,000
characters = 1 gigabyte)
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10history.ppt 21-Jan-03
THIS IS A FEW OF THE
DIFFERENT TYPES
Of
COMPUTERS
Desk top
Lap TopHand Held
computer
computerComputer
computer
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11history.ppt 21-Jan-03
DEFINITION
Hardware Vs. Software
If you can touch it, it’s hardware
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12history.ppt 21-Jan-03
Examples of Hardware
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13history.ppt 21-Jan-03
The Programs that are on the disks are software
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14history.ppt 21-Jan-03
Definition of User
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15history.ppt 21-Jan-03
Uses for a PC
Word ProcessingDesktop PublishingDatabase ManagementSpreadsheetsCommunicationFinanceEducationEntertainmentNews and Information
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16history.ppt 21-Jan-03
Tips for Beginners
Explore Your Computer
Mistakes won’t Kill You
EDIT/ UNDO is your Friend
Be persistent
Apply what you Learn
Don’t try to learn too fast
Walk away if you get frustrated
Have Fun
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17history.ppt 21-Jan-03
Why Learn This Stuff?
Buying a PCHaving Your PC ServicedCalling For SupportBe able to talk to Friends & GrandchildrenIt’s Fun
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18history.ppt 21-Jan-03
Examples of PC computers
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19history.ppt 21-Jan-03
SYSTEM COMPONENTS
Ram – Random Access MemoryRam is the memory used by the computer to run programs.The amount of Ram available will determine how fast a program will run and how many windows can be open at one time.Ram memory is considered Volatile because it disappears when the power is turned off.
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20history.ppt 21-Jan-03
SYSTEM COMPONENTS
Hard Drive
The Hard Drive is the computers main, long term storage.It is referred to as non-volatile storage, because it does not disappear when the power is turned off.The size of the Hard Drive is measured in Gigabytes. (Billions of Bytes).
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21history.ppt 21-Jan-03
SYSTEM COMPONENTS
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22history.ppt 21-Jan-03
SOFTWARE
Operating systemsApplicationsData
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23history.ppt 21-Jan-03
OPERATING SYSTEMS
MS-DOSWindows 95,98,MeWindows NT, 2000,XP,2007Linux
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APPLICATIONS
MS Word(Your basic Word Processor)
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25history.ppt 21-Jan-03
APPLICATIONS
WordPerfect Adobe AcrobatLotus 1-2-3 PhotoshopQuickBooks NotepadCorelDraw WinZipHyperCam Media PlayerPhoto Paint StarCraftETC. ETC.ETC. ETC. Ad Infinitum
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AN INTRODUCTION to WINDOWS XP
This is the operating system most of us will be using
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27history.ppt 21-Jan-03
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28history.ppt 21-Jan-03
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29history.ppt 21-Jan-03
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30history.ppt 21-Jan-03
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31history.ppt 21-Jan-03
AN INTRODUCTION to WINDOWS