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WEL COME

WEL COME. PREPARED BY:-. Bharti Mehta CLASS- XII JNV Mansa Guided By:- Mr. Beant Sharma FCSA

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WEL COME

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  1. WEL COME

  2. PREPARED BY:- Bharti Mehta CLASS- XII JNV Mansa Guided By:- Mr. Beant Sharma FCSA JNV Mansa

  3. COMPUTER

  4. COMPUTER Computer is an electronic device which gets input data, process it & display output.

  5. Parts:- CPU, Monitor, Key Board, Mouse, Speaker, Printer.

  6. CPU • Central Processing Unit (CPU) is main component or “brain” of a computer, which performs all the processing of input data. Its function is to fetch, examine & then execute the instructions stored in the main memory of a computer. • CPU consist of following parts:- • Arithmetic Logic Unit (ALU) • Control Unit (CU) • Registers • Buses • Clock .

  7. MONITOR • Visual Display Unit (VDU), commonly called Monitor is the main output device of a computer. Types of Monitors • Monochrome Monitors • Colour Monitors

  8. KEYBOARD A Key board is similar to a typewriter. It is main input device of a computer. Types of Keys:- a) Alphanumeric Keys:- used to type all alphabets, no. & special symbols like $, %, @, ^, etc. b) Special Keys:- that is for <Shift>, <Ctrl>, <Alt>, <Home>, <Scroll Lock>< etc. c) Function Keys:- They are <F1>, <F2>, <F3>, etc. used to give commands depends upon software used.

  9. MOUSE • Mouse is a basic input device. IT is a pointing device used to move cursor , draw sketches/ diagrams, seleccting a text/ object/ menu item, etc. on the monitor screen.

  10. PRINTER • It is an output device, which is used to print information on paper.

  11. TYPES OF PRINTER a) Impact Printer:- The Printers that print the characters by striking against the ribbon & onto the paper are called impact printer. These are of two types:- • Character Printer • Line Printer.

  12. NON IMPACT PRINTER • The printers that print the characters without striking against the ribbon & onto the paper are called non impact printer. These are of three types :- • Laser printer • Inkjet printer • Thermal printer

  13. SPEAKER • Speaker is one the essential output device of a multimedia computer used to produce sound & music. There are many models if stereo speakers with different size & volume capacities.

  14. THANKS

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