Programs close programSequences of instructions for a computer. are written to solve problems. To solve a problem, a program needs data input and data, or information, output. Data can be input in ...

Most programs require data from the user. This is processed and the outcome is outputted or moved to secondary storage. In some languages the input and output is combined to form a single statement.

Programmers use the Python programming language to develop applications for use in Web and desktop environments. Python facilitates this through its extensive collection of libraries and the ...