Chapter 1 Input / Output Devices

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Presentation transcript:

Chapter 1 Input / Output Devices S2 Computer Literacy > Chapter 1 Input/Output Devices Chapter 1 Input / Output Devices 1.1 Input Device 1.2 Output Device

1.1Input Devices Motivation Match the following tasks with the suitable input device. Recording Photo Presentation Speaking Photo-editing Sights Video-taking Text © DVEP 2003

1.1Input Devices Keyboard Keyboard is made up of character, numerical and functional keys, it is the most common input device Multimedia Keyboard Wireless Keyboard Virtual Keyboard Ergonomic Keyboard © DVEP 2003

1.1Input Devices Pointing Devices Mouse, Trackball, Touchpad and Digitising Table are common pointing devices that will help users operate a computer more easily © DVEP 2003

1.1Input Devices Scanner Scanner is a device used to convert a still image into a digital one. It can read text or illustrations printed on paper and translate the information into a form the computer can use Film scanner Bar code reader Flatbed scanner © DVEP 2003

A Speech Recognition System 1.1Input Devices Sound Input Tool Digital Camera Digital Video Camera Digital recorder A Speech Recognition System Microphone Web Camera Digital Video Camera © DVEP 2003

1.2 Output Device Motivation Match the following tasks with the suitable output device: Printing a photo Speaking Presenting a report Photo Presentation slide Playing a video Playing a speech Visual video © DVEP 2003

1.2 Output Device Monitor ‧There are two main types of monitor, namely the CRT (Cathode Ray Tube) monitor and the LCD (Liquid Crystal Display) monitor. ‧They can show the data processed by the computer in the form of text, images or visual information. ‧The output on the monitor is only temporary and can only be viewed on the computer screen. © DVEP 2003

1.2 Output Device LCD monitors and CRT monitors are compared in the following table: © DVEP 2003

1.2 Output Device Printer ‧A printer can place text or graphics onto a paper or a slide, which is known as a hard copy. ‧Three type of printer：Dot-matrix Printer, InkJet Printer and Laser Printer Laser Printer Dot-matrix Printer InkJet Printer © DVEP 2003

1.2 Output Device Projector Speaker © DVEP 2003

Keywords 主機 system unit 周邊設備 peripheral device 硬副本 hardcopy 輸入設備 input unit 輸出設備 output unit © DVEP 2003

Chapter 1 Input / Output Devices -End-