Management of input / output.

Management of input / output.

1. A team can be formed not only by the CPU and memory. To provide some utility to communicate with the outside world (peripheral ) through the subsystem input / output .

   • A buffer ( or buffer ) is a space in computer memory , in which data is stored to prevent or remedy program that requires either hardware or software, you run out of data during transfer .
   • BASIC FUNCTIONS
     • Address: select the right device for all devices in the system.
       • Sync : Enables the CPU and memory can communicate with devices input/output
         • Transfer: communication with each of the system devices.
           • Techniques for input and output operations :
             • Entry and exit by interruptions
             • Program Input and output
             • Direct Memory Access
   • The inputs and outputs are implemented / through : A peripheral that is the element that allows the transfer of data between the CPU and the outside world .
     • The controller is responsible for moving data between the peripheral device that controls and local storage buffer .

Imágenes y archivos del mapa