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CE06_PP07-1 What is Input? Any data or instructions used by a computer Input devices Hardware Keyboards Pointing devices Scanners Other devices Translates.

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Presentation on theme: "CE06_PP07-1 What is Input? Any data or instructions used by a computer Input devices Hardware Keyboards Pointing devices Scanners Other devices Translates."— Presentation transcript:

1 CE06_PP07-1 What is Input? Any data or instructions used by a computer Input devices Hardware Keyboards Pointing devices Scanners Other devices Translates data into a form that the system unit can process Page 180

2 CE06_PP07-2 Keyboard Entry (Page 1 of 2) Keyboards Traditional keyboards Flexible keyboards Ergonomic keyboards Wireless keyboards PDA keyboards Features Typewriter keyboard with numeric keypad Special purpose keys Toggle and combination keys Page 180

3 CE06_PP07-3 Traditional Keyboard (Page 2 of 2) Return Page 181

4 CE06_PP07-4 Pointing Devices (Page 1 of 2) Mouse Mechanical Optical Cordless or wireless Joystick Touch Screen Light Pen Page 182

5 CE06_PP07-5 Digitizing Devices (Page 2 of 2) Graphics Tablets Stylus Page 184 Return

6 CE06_PP07-6 Scanning Devices (Page 1 of 2) Optical scanners Flatbed Portable Bar code readers Handheld wand readers or platform scanners Contain photoelectric cells that read bar codes Page 184

7 CE06_PP07-7 Scanning Devices (Page 2 of 2) Character and mark recognition devices Scanners that recognize special characters & marks Magnetic ink character recognition (MICR) Optical-character recognition (OCR) Optical-mark recognition (OMR) Return Page 185

8 CE06_PP07-8 Image Capturing Devices (Page 1 of 3) Digital camera Images recorded digitally on a disk Images can be downloaded to a computer Digital video camera Records motion digitally Can take still images as well WebCams Specialized digital video cameras Broadcast images over the Internet Page 186

9 CE06_PP07-9 Audio-Input Devices (Page 2 of 3) Voice Voice recognition systems Using the language bar in Microsoft Word you can switch between voice command mode and dictation mode to enter text and commands into documents Page 187 Portable Digital Voice Recorder

10 CE06_PP07-10 Audio-Input Devices (Page 3 of 3) MIDI - Musical Instrument Digital Interface is a standard that allows musical instruments to connect to the system unit in the form of encoded digital signals representing musical sounds Return Yamaha MIDI Silent Cello Page 190

11 CE06_PP07-11 What is Output? Processed data or information Types of output Text Graphics Audio & video Output devices Monitors Printers Other Devices Page 190

12 CE06_PP07-12 Monitors (Page 1 of 2) Known as screens or display screens Output referred to as soft copy Features Resolution-pixels Dot pitch Refresh rate Size Page 191

13 CE06_PP07-13 Monitors (Page 2 of 2) Cathode-ray tube or CRTs Flat-panel Require less power to operate Portable and thinner than CRTs Other monitors E-books Data projectors High-definition television (HDTV) Page 191 Return

14 CE06_PP07-14 Printers (Page 1 of 2) Translates information that has been processed by the system unit Output referred to as hard copy Features Resolution Color capability Speed Memory Page 193

15 CE06_PP07-15 Printers (Page 2 of 2) Ink-jet printer Laser printer Personal laser printers Shared laser printers Thermal printer Other printers Dot-matrix Plotters Photo printers Portable printers Page 194 Return

16 CE06_PP07-16 Audio-Output Devices Translates audio information from the computer into sounds that people can understand Common devices Speakers Headphones Page 196 Return

17 CE06_PP07-17 Combination Input and Output Devices Many devices combine input and output capabilities Fax machines Multifunction devices Internet telephones known as Telephony and Voice-over IP (VoIP) Three approaches Terminals Page 196

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