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Computer Notes for CBSE Class 9

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.<br>

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Computer Notes for CBSE Class 9

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  1.  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.

  2.  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 https://www.extramarks.com/ncert-solutions/cbse-class- 9/foundation-of-information-technology-computer-system-an- overview For more information visit and register at Extramarks Extramarks website. website.

  3. THANK YOU! THANK YOU!

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