Computer Software Software is the set of instructions, often called a program that controls the operation of a computer system. It tells the computer what to do, how and when to do it. Software can be specially developed for a particular field such as education, entertainment, communication, networking, utility etc. People that develop software are often called Programmers
Types of Software
A. System software: A specialized program that coordinates and controls the basic internal operation or function of the computer system. They also enable application software or other programs to run properly, for example operating system (Window 2000, Window Xp). B. Application Software: This allows the user to perform a specific task on the computer. They are ready – made program written in a standardize form packages and widely available which can be bought off the shelf in a computer shop. For example Microsoft word, Corel Draw, Adobe Photoshop. Etc.
Examples of Computer System Software
1. Microsoft Disk Operating System (MS-DOS): This is one of the earliest operating system software used on personal computers. It is command driven because; it requires the user to instruct the computer. For instance, the user type Cls as command to clear the screen. 2. Graphic User Interface (GUI) Operating System: Example is a Window which is the most popular operating system in use today and comes ready with personal computers. Windows use graphics and icons to represents objects and it is usually driven by a computer mouse. 3. Macintosh Operating System (Mac OS): This is the operating system used in Apple Macintosh computers. It is similar in nature as the window operating system that runs on the PC.
Application Software
* Word Processing Software: Used for typing and producing neat, accurate and professional documents; for example Microsoft Word, Word Perfect. etc. * Desktop Publishing Software: Used to produce books, posters documents etc. for example Corel Draw. * Presentation Software: This can be used to present ideas for others in a pictorial manner; such presentations can be in form of Seminars, Workshops, and Lectures. Etc. and example of a presentation software is Microsoft Power point. * Entertainment Software: These are used to educate and entertain users. Game program fall in this category. For example Pinball, solitaire, Dangerous Dave, Zuma etc. * Communication Software: Software that makes it possible for people to communicate together. Examples are Microsoft Outlook, Mozilla Firefox, Internet Explorer, Netscape Navigator, Maxthron, Sea Monkey etc. * Networking Software: This is the software used for many computers to communicate across a network and share resources. An example is Window New Technology. (NT) * Utility Software: These are softwares used to enhance the smooth performance of your computer operation. They can be used to detect problems on the Computer and possibly to resolve them. Examples are antivirus program, file Management program, security etc.