CODES OF LANGUAGE IN COMPUTER SYSTEM. WHAT ARE THE OTHER CODES WHICH ARE USED IN COMPUTER SYSTEM?

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CODES OF LANGUAGE IN COMPUTER SYSTEM.WHAT ARE THE OTHER CODES WHICH ARE USED IN COMPUTER SYSTEM?There are many codes in computer system which may remain unnoticed by many computer geeks and nerds.I also first didn’t see it but I am going to share it because these are important codes and used by many computer hardware developers, vendors and computer software developers. They are mostly understood by ELECTRONICS AND ELECTRICAL ENGINEERING geeks or nerds.They are as under :·ERROR DETECTION CODES
·ALPHANUMERIC CODES·REFTLECTED CODESFirst we will discuss something about ERROR DETECTION CODES.ERROR DETECTION CODES:Binary information , be it pulse modulated signals or digital computer input or output, may be transmitted though some form of communication medium or electrical wires or radio waves.Any external noise introduced into physical communication medium or electric wires changes bit values from 0 to 1 or vice versa.An error detection code can be used to detect errors during transmission…

OPERATING SYSTEM- AN INTERFACE?


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ALL ABOUT OPERATING SYSTEM

An operating system is program that acts as an interface between the user and the hardware of the computer.  It also manages the components of the machine such as processor management, disk resource management, input output files, devices etc.

The operating system can be classified on various parameters.
In this section we will learn the classification of the operating system based on the number of user and the number of task performed by operating system that run simultaneously on the computer.

So lets begin
CLASSIFICATION BASED ON THE NUMBER OF USER

Based on the number of people accessing the computer, the operating system can be classified  namely in two types namely single user or multi user.  As shown in list below

SINGLE USER :-  in this type of operating system only one users can access the resources of the operating system at a time.  Example of single user include dos and microsoft windows

MULTI USER :-  in this type of operating system more than one user can simultaneously access the computer resources.  Example of multiuser operating system include unix, vms (virtual memory system) and mainfram operating system (multiple virtual storage) mvs , linux, unix, novel netware etc.

CLASSIFICATION BASED ON THE NUMBER OF TASK

Based on the number of task that can run simultaneously on a computer the operating system can be classified namely single tasking or multi tasking.  They are explained below.

SINGLE TASKING :-  a single tasking operating system allows the user to perform a single task at a time.  Examples of operating system are dos, palm os for handheld palm computers.

MULTITASKING :- a multiple tasking operating system allow the user to simultaneously work on different projects or on different programs. Example of multi operating system include microsoft windows and apple mac os.  An example of multitasking can be copying from one file to another file or from one drive to another and simulataneously listening to song which is played.

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