THE INTERNET The internet, sometimes called simply ‘the Net’ is a worldwide system of computer networks –a network of networks in which users at any one computer can, if they have permission get from any other computer (and sometimes directly to users at other computers) A global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols. Operating system (OS) An operating system or (OS) is the program that, after being initially loaded into the computer by a boot program manages at the other program of the computer. The other programs are called applications or application programs. The application programs make use of the operating system by making request for services through a defined application program interface ( AP I). In addition, throug
