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Importance |&| Basicsof Computer education
-For School studentsBY: P V SRIRAM
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Are computers really necessary for us ?
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Expression
Visual PresentationsWebsites, BlogsMini projectsHow tools workAnalyses
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InformationTechnology as a vehicle
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Cultivating SkillsResearchProblem solvingLogical skills
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Builds confidenceTech + BooksMotivationInformation searchingUsing tools
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Why this class
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INDEX
Chap-1: What is a COMPUTER ? Chap-2: What is I/O, Hardware and Software –
Examples ? Chap-3: Understanding a Software and its purpose. Chap-4: How does a computer works ? Chap-5: What's next level of computing ?
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Father of computer
Charles Babbage
Born: December 26, 1791 Died: October 18, 1871,
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Chapter - 1
What is a computer
Types of computers
Generations of computers
Applications
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What is a
You know this What it can be then ?COMPUTER
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What is a
You know this What it can be then ?C CommonlyO OperatedM MachineP ParticularlyU Used forT TradeE Education / Economic . . . R Research
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Types of Computers
By Size
By Function
By Usage
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T O C’s – By Size1.Personal computer 2.Mini computer
3.Main frame 4.SuperComputers
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T O C’s by Function and Usage
By Function
Servers
Workstations
Information Appliances
Embedded Systems
By Usage
Personal
Public
Display
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Generation of ComputersS.N. Generation & Description
1 First GenerationThe period of first generation: 1946-1959. Vacuum tube based.
2 Second GenerationThe period of second generation: 1959-1965. Transistor based.
3 Third GenerationThe period of third generation: 1965-1971. Integrated Circuit based.
4 Fourth GenerationThe period of fourth generation: 1971-1980. VLSI microprocessor based.
5 Fifth GenerationThe period of fifth generation: 1980-onwards. ULSI microprocessor based
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from THEN to NOW
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Just plug the HDMI connector into a TV or monitor
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Applications of Computers
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Chapter - 2
I/O
Hardware
Software
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HardwarePhysical parts or components of a computer
1. Monitor.2. Motherboard.3. CPU (Microprocessor).4. Main memory (RAM).5. Expansion cards.6. Power supply unit.7. Optical disc drive.8. Hard disk drive (HDD).9. Keyboard.10. Mouse.
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Software
OS – system software
Application software
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Chapter – 3 Understanding Software
https://youtu.be/pTdSs8kQqSA
[Play this video]
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H
S
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Chapter – 4
How does a computer works It takes in raw information (or data) at one end, stores it until it's
ready to work on it, chews and crunches it for a bit, then spits out the results at the other end. All these processes have a name. Taking in information is called input, storing information is better known as memory (or storage), chewing information is also known as processing, and spitting out results is called output.
Input
Process
Output
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Chapter - 5
Future and present computing
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