INFORMATION PROCESSING CYCLE Steps followed to process data • Input • Processing • Output • Storage1B-7
HOW DO COMPUTERS WORK?• Input--This is when information is entered into a computer. Some common input devices include the keyboard, mouse and scanner.• Output--This is the information that comes out of a computer after it has been processed. The information comes out on output devices such as a printer or computer monitor.• Processing--This is when the information is handled by the computer’s brain, known as the CPU (Central Processing Unit).
PARTS OF COMPUTER SYSTEM Hardware The hardware is the part of the computer you can touch and see. Mechanical devices in the computer Software Software is a part of the computer you cannot touch. Software consist of computer programs and procedures that perform some tasks on your1B-9 computer.
INPUT DEVICES• The Mouse is the small hand held device that attaches to the computer. It may have two or three buttons. The mouse is used to move the cursor on the screen.• The Keyboard is what you type on, similar to a typewriter.
INPUT DEVICES • The Scanner similar to a color photocopier is a device that captures pictures or documents, so that they can be seen or used on the computer. • Joystick allows an individual to easily move an object in a game such as navigating a plane in a flight simulator1B-11
INPUT DEVICES • A Camera connected to a computer that allows anyone connected to the Internet to view either a still pictures or motion video of a user or other object. • Microphone is a hardware peripheral that allows computer users to input audio into their computers.1B-12
OUTPUT DEVICES • The Monitor is the display screen, similar to a television screen. • Speakers output data in audio format, including music, movie audio and text-to-speech output1B-13
OUTPUT DEVICES • The Printer is a device that puts what you have . created on to paper. • Projector is an output device that can take the display of a computer screen and project a large version of it onto a flat surface. Projectors1B-14
APPLICATIONS OF COMPUTER • In Schools • In Offices1B-15
APPLICATIONS OF COMPUTER • In Railways • In Hospitals1B-16
APPLICATIONS OF COMPUTER • In Banks • In Laboratory1B-17
I FIRDOUS YASMEEN thereby declare that as a part of my B.Ed(course 2011-2012) the computer project is successfully completed on the topic ”INTRODUCTION TO COMPUTER”. •With this project I have learnt how multimedia is useful in imparting knowledge to students. • Multimedia is useful to learn, to think effectively and decision making...All this effort has been put by my lecturer Ms Abida mam she has supported and guided in making my project effectively.1B-19