An alert reviewer notices a consistent spelling error in a manuscript of an oper

Question

An alert reviewer notices a consistent spelling error in a manuscript of an operating systems textbook that is about to go to press. The book has approximately 700 pages., each with 50 lines of 80 characters each. How long will it take to electronically scan the text for the case of the master copy being in each of the levels of memory of fig 1-9? For internal storage methods, consider that the access time given is per character, for disk devices assume the time is per block of 1024 ch characters, and for tape assume the time given is to the start of the data with subsequent access at the same speed as disk access.

Figure 1-9 below please explain your answer.

The levels in 1-9 are as such

Typical access time                                                                         Typical capacity

1nsec                                                Registers                                   <1 KB

2nsec                                                Cache                                        4 MB

10nsec                                              Main memory                             512 - 2048 MB

10msec                                             Magnetic disk                             200 - 1000 GB

100 sec                                             Magnetic tape                             400 - 800 GB

Explanation / Answer

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