A computer is an electronic device capable of manipulating numbers and symbols under the control of a set of instructions known as a computer program. A computer program instructs the computer to solve a particular problem and display the result. Computer programs are written using programming language like BASIC, FORTRAN, COBOL, PASCAL, C, C++, ALGOL etc.
A computer program is a list of instructions, which tell the computer what to do. Everything a computer does is done using computer programs. Programs stored in a computer's memory are "internal programming" that allow the computer to perform tasks one after the other, even with intermittent breaks.
John von Neumann, a Hungarian-born mathematician came up with the idea in the late 1940s. The first digital computer designed with internal programming capability was the EDVAC meaning "Electronic Discrete Variable Automatic Computer", created in 1949.
For Examples: Some examples of computer programs;
Operating System.
Web browsers such as Mozilla Firefox and Chrome can be used to view web pages on the Internet.
An office suite can be used to write documents or spreadsheets.
Video games are computer programs.
Computer programs are stored as a file on the hard drive of the computer. When the user runs the program, the file is read by the computer, and the processor reads the data in the file as a list of instructions. Then the computer does what the computer program tells it to do.
A computer program is written by a programmer. It is very difficult to write in one ( 1 ) and zero ( 0 ) of machine code that a computer can read, so computer programmers write in a programming language, such as BASIC, C, or JAVA. Once it is written, the programmer uses a compiler to convert it into a language that the computer can understand.
There are also bad programs, called malware, that are written by people who want to damage the computer. There is some spyware, which is trying to steal information from the computer. Some attempt to damage the data stored on the hard drive. Some send other users to web sites that offer to sell them things. Some computers are viruses or ransomware.
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