computer
A computer is a machine that performs calculations expressed in formulas or logical languages, or controls operations. These definitions, which can be found in the dictionary, are accurate, but they are too broad to point to accurately describe the old computer, the current computer, and the future computer. The more significant question is, "What kind of computer is there?" Or, 'What is the special thing about the capabilities and functions of the present computer?' Pascal has devised a mechanical calculator that automatically performs addition and subtraction to help his father, a tax agent. In the early 1950s, the word "computing machine" was used to direct the computer. Finally, the term shorter computer replaced the computing machine. Essentially, arithmetic is closely related to mathematical problems, but modern computers are used for many things that are not related to mathematics, as they are cheaper and more versatile.