Consider a disk queue with requests for I/O to blocks on cylinders.

98 183 37 122 14 124 65 67

Considering SSTF (shortest seek time first) scheduling, the total number of head movements is, if the disk head is initially at 53 is?

A. 224

B. 236

C. 240

D. 200

What is the most important for you to choose before you build a network?

Jenny needs to record the names of 30 students, write down the subjects they studied, and note their grades in each subject after the midsemester exams and the end-of-semester exams. she divides the midsemester and end-of-semester information into two separate worksheets, sheet 1 and sheet 2. how will she rename the two worksheets?

1. how did the development of silicon chips impact computer usage? a. they improved the operating system b. they made it possible to use punch cardsc. they interpreted the binary system so that punch cards were no longer necessary d. they made it possible to produce computers small enough to fit on a desktop2. in what decade were personal computers, like the apple ii, introduced to the american public? a. 1890sb. 1920sc. 1970sd. 1990s3. why was the apple ii known as “the people’s computer”? a. it was made by the company peoplecomp.b. it made using computers easy for the general public.c. it was designed for several people to use at the same time.d. it was built by people.4. why was the term personal computer created? a. because the computers finally fit in the owner’s handb. because they were designed for individuals to usec. because you had to enter a personal password to access the computerd. because the computer was developed by a person