SOFTWARE

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SOFTWARE
These are computer components that you cannot touch, feel or see. It is the program material instruction that tells the system unit (C.P.U) what to do and how to do it at any point in time or interval. We cannot touch these programs unlike the hardware which we can touch and see. They are written programs designed to meet the essential needs of the user. It can also be seen as a package that enables the system to manipulate effectively. These instructions are written in a language that the computer can understand and the language is called MACHINE LANGUAGE.
Computer software consists of step-by-step instructions arranged in a structured sequence to control and co-ordinate the operations of computer hardware components.
  Computer cannot work without software. These step-by-step instructions are called PROGRAMS. The art of writing program is called PROGRAMMING and those that specialize in the job are called PROGRAMMERS. Programs are usually stored in the storage media such as CD ROM, DISKS, DISKETTE etc.

  
TYPES OF COMPUTER SOFTWARE
There are two types of software, they are:
1. SYSTEM SOFTWARE
2. APPLICATION SOFTWARE

SYSTEM SOFTWARE
These are programs that manage the computer resources such as central processing unit (C.P.U), memory, communication links and other peripherals.
System software includes the operating system, drives, utilities and language translators.

A) OPERATING SYSTEM: Every computer requires an operating system to function. The operating system manages the computer resources. Example includes: MS DOS, MS WINDOWS, UNIX, NOVELL, XENIN and host of others.
B) UTILITIES: They are also used to ease management and maintenance of computer system. They includes windows explorer, Anti-virus software (Norton, MCAFEE, DR. SOLOMON) etc.
C) LANGUAGE TRANSLATORS: They are used by programmers to write programs. Translator as the name suggest, translates human codes to the language understand by computers. Examples of programming languages required by translators are: FORTRAN (Formula Translator), COBOL (Common Business Oriented Language), BASIC (Beginners All purpose Symbolic Instruction Codes), C++, JAVA, PASCAL etc.

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