Computer Notes for CBSE Class 9 - PowerPoint PPT Presentation

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Computer Notes for CBSE Class 9

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A computer has become an important part of the students in school and sometimes they can have a tough time in learning and understanding the basics of computers. The subject can be studied in the Extramarks app with the help of the CBSE NCERT Computer notes for Class 9. The app is a reliable source of learning for the students. Download the Extramarks learning app now. – PowerPoint PPT presentation

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Title: Computer Notes for CBSE Class 9


1
COMPUTER SYSTEM-AN OVERVIEW CBSE Class 9
2
COMPUTER SYSTEM-AN OVERVIEW
  • A computer is an electronic device that stores,
    retrieves and processes data. It can be
    programmed with instructions. A computer is
    composed of hardware and software, which
    transforms some data into information. Hardware
    represents physical and tangible components of
    computer. 
  • Software is a set of programs that govern
    operation of computer system and make hardware
    run. Peripherals are hardware devices that
    surround the system unit.
  •  A computer follows the I-P-O cycle, i.e., it
    needs certain input, carries out a process and
    produces output. Computer is used in each and
    every aspect of human life. They are used for
    commercial purposes as wel ll as for personal
    use.
  • Strengths of Computers include Speed, Accuracy,
    Versatility, Reliability and high Storage
    Capacity. Weakness of Computers include Zero IQ
    and lack of decision making power.

3
Extramarks Approach
  • A computer has become an important part of the
    students in school and sometimes they can have a
    tough time in learning and understanding the
    basics of computers. The subject can be studied
    in the Extramarks app with the help of the CBSE
    NCERT Computer notes for Class 9. The app is a
    reliable source of learning for the students.
    Download the Extramarks learning app now.
  • For more information visit and register at
    Extramarks website.
  • https//www.extramarks.com/ncert-solutions/cbse-
    class-9/foundation-of-information-technology-compu
    ter-system-an-overview

4
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