Define hardware and software
The physical components of a computer are called hardware. You can touch, see
and feel hardware. The input/output devices (such as keyboard, mouse, printer,
monitor etc.), CPU, memory unit etc. are examples of hardware.
A set of instructions given to the computer to perform a specific task, is
called software. Software is also called computer program.
A program or set of programs that is especially designed to control different
operations of computer system is called system software. It controls the working
of different components of the computer. The system software also enables the
other application programs to execute properly.
A program or set of programs that are especially designed to solve the specific
problems of users, are called application software. It is also known as software
The software that is developed for a particular customer or organization is
called custom-built software. It is also known as customized software.
The software that is developed for sale to the general public is called packaged
software. Packaged software is used to solve some common problem of many people
Some examples of packaged software.
- Word processor such as MS-Word
- Spreadsheet such as MS-Excel
- Database software such as MS-Access
- Graphics software such as Adobe Photoshop and CorelDraw.
- Communication software such as Internet Explorer