Introduction to Hardware and Software

Computer Programming...

• A computer system is a collection of "Hardware" and "Software".
• The tangible parts (physical) of a computer are known as hardware while intangible part (logical) is known as software.
• One of the main reason behind popularity of computer is its programmability. Therefore computer is a general purpose electronic device which can be used for different purpose by simply changing the software used.
• The software is also known as "Computer Programs".

A computer program  

• A computer program is a set of "instructions" stored in computer memory for a specific task.
• The instruction is a basic command to the computer system such as opening a file , closing a file , performing an arithmetic operation , accepting a user input , printing message on the screen etc.

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