COMPUTER PARTS AND COMPONENTS INPUT DEVICES

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Presentation transcript:

COMPUTER PARTS AND COMPONENTS INPUT DEVICES

There are three types of peripheral devices : Input Devices Storage Devices Output Devices

INPUT DEVICES TEXT AUDIO POINTING DEVICES GRAPHICS VIDEO

Input Devices for TEXT You can enter data such as text and commands into a computer by pressing the keys on the keyboard. You can press the keys of a virtual keyboard on the screen. An optical reader is a device that uses a light source to read characters, marks and codes and then converts them into digital data that a computer can process.

Input Devices for GRAPHICS A scanner is a device that captures images from photographic prints, posters, magazine pages and similar sources for computer editing and display. A digital camera allows you to take pictures and store the photographed images digitally.

Input Devices for AUDIO Audio input is the speech, music and sound effects entered into the computer. This can be done by using input devices such as a microphone and digital musical instruments like the Musical Instrument Digital Interface (MIDI) keyboard.

Input Devices for VIDEO A Closed-Circuit Television (CCTV) video camera is a type of digital video camera that enables a home or small business user to capture video and still images. A webcam is a video camera that displays its output on a web page. A digital video camera allows you to record full motion and store the captured motion digitally.

Pointing Devices A pointing device is another form of input device. Pointing devices such as a mouse, graphics tablet and touch screen are used to input spatial data into the computer.

ACTIVITY 1 Open Mozilla Firefox Browse ictforkids.com Select Interactives QuizMultiple Choice – Input Output devices

ACTIVITY 2 Open Mozilla Firefox Browse www.ictspecialist.com/peripherals.html