Page 63 - Computer Class 03

Programming Language

An operating system acts as an interface between the user and the
computer. Its most important job is to convert the input data into the

language that is understood by the computer.

Commands are set of instructions that we put in. The set of commands

given as an input to complete any task is called a program . And the

language which is used to write a program is called the programming
language. The user is known as the programmer. Some of the commonly

used programming languages are — MSWLogo, QBASIC etc.

MSWLogo

MSWLogo stands for Microsoft Windows Logic Oriented Graphics

Oriented. It is an education
programming language designed

by Wally Feurzeig, Seymour Papert

and Cynthia Solomon in 1967.

Logo is a programming language

that is easy to learn. It is used for
teaching students and children

how to program a computer. It

was developed to process a list of

words. A command is an

instruction which the computer can understand and execute. In
principle, the computer only understands very basic commands which

can then be combined to form more complicated instructions. Such a

sequence of commands is called a computer program. Writing

computer programs is not easy. There are programs which has

millions of commands. To keep track of such a complicated program,
it is very important to approach the task to write a program in a

structured and well-thoughtout manner.

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