Value used in a program where the value is subject to change and is read in at the time the program is executed.

documenting is keeping a written record of what is done.

A computer can perform arithmetic operations ( usually limited to addition, subtraction, multiplication, and division)
It can compare two things and,on the basis of the result of the comparison, choose among alternative course of action.
It can move data about in its memory.
It can also input data and output results.

An assembler language is a low-level language.

Collection of equipment, programs , problems, prapare problem definition.