Information technology is a collection of hardware, equipment and applications used to store, transfer and share data. Information technology has improved and developed the world we live in; it is difficult to do without technology, nowadays people cannot do without it because it has dramatically affected their lives and scientific process, people use technology in many areas of life, such as work, education , health and others. So they need to understand the mechanism of action of these devices and how to handle them. People need to know more about computer technology, they also need to know about cell phone technology, also people need to know how technology affects our lives. There is no special person who invented the computer, but it came from the efforts of a group of inventors. It developed the production of computers until it reached this level of development where it became easy to acquire the computer and it became the most important thing in our life. The computer consists of several main parts: screen, mouse, keyboard and system unit. T...