operating system

A wide variety of operating system, according to their functions and characteristics for batch processing operating system, time-sharing operating system and real-time operating system; at the same time management in accordance with the number of households is divided into single user operating system and multi user operating system; suitable for management of computer network environment network operating system.

Microcomputer operating system with the computer hardware technology development,Mobile Application from simple to complex. Microsoft development DOS is a single user single task system, while the Windows operating system is a single-user and multitask system, through development of ten years, already from 3.1 to the current development of the Windows Windows NT, Windows 2000, Windows XP, Windows Vista and Windows 7, it is widely used in the current operation of Microcomputer system of. Linux is an open operating system source code, has been more and more applied by the user, is a strong competitor Windows operating system.

2) language processing systems ( translator )

Computer and communication information using a language called computer language or programming language. Computer languages are commonly classified as machine language, assembly language and high-level language three. If you want to run on a computer advanced language program must be equipped with a programming language translation program ( hereinafter referred to as translator ). Translation process is itself a set of procedures, different languages have corresponding translation program. Translated in two ways:

Known as a" interpretation". Early BASIC source program execution to use this kind of means. It calls the machine is equipped with BASIC" interpreter", running BASIC source program, an BASIC source sentences are interpreted and executed,Digital Marketing it does not retain the target program code, which does not generate executable file. This slow, each run to go through the" interpretation", while explaining to execute.

Another called " compiler", it calls the corresponding language compiler, the source code into object program ( with the . OBJ extension ), and then use the connection procedure, the target program and library files are connected into the executable file. Although the process of compiling some of the complex, but it forms the executable file ( with. Exe extension ) can be performed repeatedly, faster. While the program is running as long as the type of executable file name, and then press Enter button.

Source for interpretation and compilation task procedures, respectively called compilers and interpreters. Such as FORTRAN, COBOL, PASCAL and C advanced language, when used with the corresponding compiler; BASIC, LISP and other high-level languages, when used with corresponding interpretation procedure.