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Chapter 17. PC I/O - Pg. 417

Chapter 17 PC I/O All computers have to have some form of input or output in their execu- tion. This will be one of the following: n Neither input nor output -- A box that does not do anything! n Input only -- Those status reports for your manager that never get read. n Output only -- Always talking but never thinking! n Input and output -- A (hopefully) useful computer This chapter discusses one method needed to allow for the input and