People are necessary not only as the fifth element of the computer system, but also in the creation and maintenance of it.
People design the hardware, and write the software that runs on the computer system.
People also respond to the software and proceed through the steps necessary to the completion of the required tasks. Since the user is the most important part of the computer system, the mode of interaction between user and computer and vice-versa is very important. The great variety of tasks which require computer assistance continues to create careers for which people train in all levels of specialization. Computing Careers C omputing careers vary so much that the only common element amongst them is that they involve the use of computers. In addition, a career in computers means a job in a rapidly changing and expanding field where employees are constantly challenged to keep abreast of new technology.