Thursday, July 31, 2014

Input-Output devices

Don't take Input-Output devices as an easy concept there are so many devices that are not known by some people which are very important to banking technologies. Here we also provide you the information about the software and hardware instruments that are being used by many of the banks and their uses.

Input and Output devices refers to all the ways a computer communicates with users, Other machines(computers) and devices. They usually provide man-to-machine and machine-to-man communication. 
The input devices translate the data or instructions into machine understandable form. The most common method of entering data and instructions into a computer is through the keyboard.
The most common input devices are
1.keyboard
there are different types of keyboards. They are
  • Alphanumeric keys
  • Numeric keypad
  • Function keys
  • Cursor-movement keys
  • Modifier keys
2.Mouse
3.Trackball
4.Touchpad 
5.Pen 
6.TouchScreen
7.Joystick
8.Scanner
9.Bar-code Reader
10.Microphone
11.PC video camera
12.Digital camera
The output devices present the results of computing operations to the user. The computer sends information to an output device in the binary form. Output devices translate the computer's output into a suitable form understandable to users, for example, characters, graphics and audio visuals.
The most common output devices are:
1.Printers
There are different types of printers. They are
  • Dot Matrix Printer
  • Line Printer
  • Laser Printer
  • InkJet Printer
  • Snapshot Printers
  • Thermal-wax printers
  • Dye-sublimation Printers
  • Fiery Printers
  • IRIS Printers
2.Plotters
3.Monitors
4.Projectors
  • LCD projectors
  • DLP Projectors
5.Speakers
6.Headphones

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