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Text 1. Micro reckoner operational(a) systems An operating system is a group of reckoner programs. It helps to manage the computer. It is resources and acts as an embrasure amid the computer and application programs. The major operating systems for microcomputers are MS-DOS, PC-DOS, The mack system, UNIX and OS/2. - DOS hightail its on the IBM family of computers using Intel microprocessors. It is a drill hole based system and quires the entry of controllers on a ascendancy product stage business. * The windows operating purlieu provides a graphical drug user interface GUI lets users select from ions. These icons show the available choices. Windows likewise provides multitasking, allowing some(prenominal) application programs to melt simultaneously. * The Macintosh system runs on the Motorola 68000 specify of processors. It provides multitasking and a graphical surroundings. You hindquarters not access code the operating system without th e graphical environment. * UNIX allows simultaneous programs to be shared by several users at on time. Its networking capabilities allow to share files everyplace networks with several different kinds of equipment. * OS/2 can run application programs written for DOS and it provides a graphical environment its multitasking ability allows to run several large programs simultaneously. * Text 2.

electronic mail * Telecommunications is the process of sending and receiving electronic information done hollo lines. This makes it possible for a computer to share and put back data with an some other computer connected to a t elephone line almost anywhere in the words. ! Users can communicate with apiece other directly, send and receive electronic mail and facsimiles (faxes), move into in electronic bulletin boards, and access large field databases. * Electronic send, or E-mail, is the sending and receiving of mental object from one computer to another over telephone lines or across networks to other computers, computer bulletin board systems, and on line services...If you essential to get a full essay, rate it on our website: BestEssayCheap.com

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