What is a computer software
COMPUTER SOFTWARE
Computer software is basically a program, which allows the hardware components to operate effectively as well as provide very many useful services. Computer manufacturers and certain software specialist usually write software. Programs are sequences of instructions given to a computer to enable it solve a particular problem or accomplish a given assignment.
Computer software is basically a program, which allows the hardware components to operate effectively as well as provide very many useful services. Computer manufacturers and certain software specialist usually write software. Programs are sequences of instructions given to a computer to enable it solve a particular problem or accomplish a given assignment.
Some of these
programs are permanently stored in the computer. They automatically start up
the computer when it is switched on. On completion of the initial process of
start-up, they will transfer control to the operating system, which is the
manager of the computer resources. The rest of these programs that are for the
external use are loaded to the memory of the system from the secondary storage
medium like hard/floppy disk after the system boot-up. The loading of the
operating system is automatic, hence if It is not loaded, the system cannot
boot or prompt for a command.
Categories of
Software
The tree diagram
below illustrates the different categories of software and, to some extent,
their relationships to each other. This section examines the distinction
between systems software and applications software.
Categories
of software
System Software
The term systems
software covers the collection of programs usually supplied by the manufacturer
of the computer. These programs protect the user from the enormous complexity
of the computer system, and enable the computer to be used to maximum effect by
a wide variety of people, many of whom will know very little about the inner workings of
computers. Without systems software a modern digital computer would be
virtually impossible to use
Broadly speaking,
systems software consists of three elements:
those programs concerned with the internal control and co-ordination of all aspects of the computer system, namely the operating system;
A number of other programs providing various services to users. These services include translators for any languages supported by the system and utility programs such as pro gram editors and other aids to programming;
graphical user interfaces (GUls) providing intuitive, easily learned methods for using microcomputer systems.
those programs concerned with the internal control and co-ordination of all aspects of the computer system, namely the operating system;
A number of other programs providing various services to users. These services include translators for any languages supported by the system and utility programs such as pro gram editors and other aids to programming;
graphical user interfaces (GUls) providing intuitive, easily learned methods for using microcomputer systems.
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