OPERATING SYSTEM ( WINDOWS )

OPERATING SYSTEM

An Operating system is a programme which acts as an interface between user and machinUsing Internete and control all other components of the computer system.

Features of Windows 98 

• Creates the link between you, the user and the computer by providing an interface in which you can communicate with the computer.
• Serves as the base software on which a variety of programs can operate. Examples include Ms Word, Ms Excel, MS Power Point, and Ms Access.
• Handles Interrupt functions, such as managing the computer memory, input and output operations.
• Provides a series of utilities specialized programs to manage your system and commands that you can use to manage your files, folders and disks.
• A Graphical User Interface (GUI), which uses pictures, symbols, windows, and words on your screen that you control with the mouse.
• Built in program, or accessories like wordpad, notepad calculator, paint etc.
• The World Wide Web  (WWW) is easily accessible from anywhere in windows. you can communicate over the internet.  Using Internet tools included windows you can send e mail, chat,  etc.

LANGUAGE PROCESSOR

 Compiler  It convert the high level language programme into machine level language or low level language in one go only and reports all the errros of the programme along with line numbers.

Interpreter This is also a language processor it converts a high level language programme  into machine level or low level language by converting and executing it line by line. If there is any error in any line it reports it at the same time and stop the programme execution until the error of line is removed.

Assembler  It converts a assembly language or middle level language into machine level language or low level language.

APPLICATION SOFTWARE.

It is the set of programmes to carry out operations from a specified application.

TYPES OF APPLICATION  

Customized Application Software

General Applicant Software or General Purpose

CUSTOMIZED APPLICATION SOFTWARE

This type of software is made to meet all the requirements specified by a particular person this is self made software for individual use not everyone can use it.

GENERAL APPLICATION SOFTWARE

This type of software is developed keeping in mind the general requirements for carrying out a specific task.

MS DOS Based Program 

You can run MS DOS based  program by using the MS DOS prompt commands in the program menu. Click on start and then choose programs  MS DOS prompt. This opens an MS DOS command window in which you can run your MS DOS based programs

Using MS DOS Commands

 We have given some example below to know how to use MS DOS based commands.

1.  Be sure that the MS DOS window is active.
2. At the MS DOS prompt type DIR and press Enter. The files and folders stored in your open folder on the hard disk appear in a list .The DIR command means "directory" and lists all files and folders in your current directory (folder).
3. At the next MS DOS prompt, type "CD\Windows" and then press ENTER. The folder changes to the windows folder in the same drive. The CD command means "change directory". The backslash (\) and windows indicates the directory path for your Windows folder.

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