This is a labeled system unit. In class we also had to draw and label the components of the system unit ourselves. For every instruction, a processor repeats a step of four basic operations, which comprise a machine cycle. The steps are fetching, decoding, executing, and if necessary storing. In this chapter there is a question from Ethics and Issues that ask if computers and devices should be banned from the classroom. I do think that computers and devices should be banned from the classroom. They should be banned because students these days are using devices to cheat, and text which are a distraction from the teacher. A computer should only be allowed if it is for note taking, but there should be a computer lab in each school which students can go to instead of using them in the classroom.
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