Bits and Bytes

  Input Output Devices: What are Inputs and Outputs? Input: Inputs are the set of instructions that are given to the computer. Output: Output is the results that come after processing the inputs. Difference between Output Devices and Input Devices Some of the important input devices are –           1. Keyboard 2. Mouse 3. Joystick   4. Light Pen   5. Track Ball   6. Scanner   7. Digitizer A device that allows you to input drawings, sketches, and handwritten notes into a computer.   8. Microphone   9. Magnetic Ink Card Reader(MICR) used in banks because of a large number of cheques to be processed, The bank's code number and cheque number are printed on the cheques with a special type of ink that contains particles of magnetic material that are machin

   Operating System Ø   A program that acts as an intermediary between a user of a computer and the computer hardware Ø   An operating System is a collection of system programs that together control the operations of a computer system.   Ø   An operating system (OS) is the program that, after being initially loaded into the computer by a boot program, manages all of the other application programs in a computer. The application programs make use of the operating system by making requests for services through a defined application program interface (API). In addition, users can interact directly with the operating system through a user interface, such as a command-line interface (CLI) or a graphical UI (GUI).   Ø   Operating System lies in the category of system software. It basically manages all the resources of the computer. An operating system acts as an interface between the software and different parts of the computer or the computer hardware. The operating system is designed in suc