Traduccion Ingles Español Trabajo Lectura De Manuales

Unit 1: Extra reading 2: Input and output
The operating system (OS) is the software that controls functionality and provides lower-level routines for application programs. Most operating systemsprovide functions to read and write data to files. An operating system translates requests for operations on files into operations that the disk controller can perform. The operating system helps thecomputer perform four basic operations:
-The input operation
- The processing operation
-The output operation
-The storage operation

The most common way to input data into a computeris with a keyboard and mouse. Another way to input data is with a touch screen. On full screen computers, touch screens have on screen buttons that can be accessed with a finger or a stylus. Theseapplications are custom designed and typically simple to use. Therefore, these applications can be used by anyone. Touch screens are also used on PDAs and tablet computers. Because of the smallerscreens, a stylus is required for precise interaction with screen objects. Input devices allow the user to open a web page, send an email file, or access a file from a network server.
After the data hasbeen entered, the computer can process the data. While a file is open and the text in being reformatted, the computer is processing data.
Processing data usually results in output. Examples of outputinclude a word processor file or a spreadsheet. The most common way to output data is to send the data to the computer monitor, or to a printer. Most computers have a connection to the internet.Other ways to output the data includes sending the data to the internet using email or through a web page.
Data storage is probably the most important of the four basic computer functions. Floppy disksand hard drives are examples of storage devices. The most common way to store a file is to save it to a hard drive. Hard drives can be compared to large file cabinets. An operating system will find...