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COMPUTER BASICS PART 1

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Computer ek aisi machine hai jo input ko process krke output/result deti hai

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DATA :Collection of factsRaw information

  INFORMATION :

Useful InformationFacts in organized manner

DATA PROCESSING :Sequence of actions required to

be performed on data to convert it into results.

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TERMINOLOGY

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Hardware

vs.

Software

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The “tangible objects” Jinko hum touch kar sakte hai

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HardwaresMemoryRAMHard Disk/Floppy Disk/CDCPU/MotherboardModem

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Jo kuch bhi hum computer me save karte hai wo uski Memory me save hota hai.

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Har kaam sabse pehle primary memory me save hota hai

Temporary memory

also called main memory or internal memory

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RAM- Random Access

Memory

ROM- ReadOnly

Memory

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RAM- Random Access

Memory

Memory chip of computerTab tk kaam krta hai jab tk Computer on hai.Computer band krne par data erase ho jata hai

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ROM- ReadOnly

Memory

Name given to chips storing data.Data can not be modified. read only.Data not get lost

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Jo bhi hum save karte hai wo is memory Me save hota hai

Permanent memory hai

Data future use ke liye save rehta hai

Transfer kar sakte hai

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CPU- Central ProcessingUnit

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LOOKING AT THE CPU

CD Rom drive 3 ½ inch floppy

disk drive On/Off button Restart button

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CPU

Monitor (screen)

MOUSE

KEYBOARD

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Software-computer programsSpecified taskIntangible(jinhe hum touch nahi kar skte)

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TYPE OF SOFTWARE

Application softwareSystem software

MOUSE JOYSTICK LIGHT PEN OPTICAL SCANNER OPTICAL CHARACTER RECOGNITION MAGNITIC INK CHARACTER READER BAR CODE READER DIGITAL CAMERAS MICROPHONE

Visual display unit Printers Speakers monitor