Thread: Data Processing

In computer peripherals, are called peripheral devices and independent auxiliary devices connected to the central processing unit of a computer. Are considered peripheral to both drives or devices through which the computer communicates with the outside world as the systems that store or archive the information , providing a memory auxiliary memory principal.


Are those used to enter data into the computer for processing . The data are read from the input devices and stored in main memory or internal. The input devices convert the information signal power that is stored in main memory. Typical input devices are keyboards, some are: light pens, joysticks CD-ROM compact disc etc. Today it is very common that the user uses an input device called the mouse pointer moves mail on screen that facilitates the interaction user-machine.

Are those that can represent the results data processing. The typical output device is the screen or monitor . Other output devices include printers tracer graphics speakers, among others.

Ergonomics is both the discipline -related scientific understanding of the interactions between humans and other elements of a system and the profession that applies theory , principles , data and methods to design in order to optimize human well-being and overall performance system. It is a discipline that seeks to humans and technology work in complete harmony, designing and maintaining products , jobs work , tasks, equipment, etc.

in accordance with the characteristics, needs and human limitations. Fail to consider the principles of ergonomics take many negative effects - in general - are in injury, occupational disease, or damage to productivity and efficiency . Ergonomics looks at those aspects that comprise the artificial environment constructed by man , directly related to the acts and gestures involved in any such activity.