Understanding C++

 




Understanding the Programming


Programming is instructing a computer to perform a task for you with the help of a
programming language. The instructing part requires a step by step solution to the
task. This step by step solution is called an algorithm after the name of AlKharizmi.
People who make computer programs are called programmers. There are usually
two difficulties for computer programmers; Finding a feasible algorithm (algorithm
design) and writing the program (implementation). People who use the programs are
called end-users.
A computer program (software) contains a sequence of instructions for a computer.
One program is usually composed of three parts:
l Input part gets the data from an input device. Our programs, in the book, will get
the data from keyboard or from a text file.
l Process part is the hardest working part of the program. It carries out the
algorithm and finds out the desired result.
l Output part gives the result of the program. Our programs will display the result
on the screen or print it into a text file.




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