A disk takes 1ms per track seek time, and the head is currently on track 70. Assume it takes 5 ms to service a request once the head is at the right track. The following stream of requests arrive, given as (ID, arrival time in ms, track). When is the last request finished if the Elevator algorithm is used and the current direction is down? Requests: (A,0,80)(B,4,75)(C,12,82)(D,20,90)( E,32,45)

Which is a false statement considering copyright law? a. when people upload something to the internet they automatically receive a copyright for the work b. the work does not have to contain a copyright notice to be considered having a copyright c. copyright is legal term describing rights given to the creators for literary and artistic works d. personal pictures are always covered by copyrights

Answer the following questions regarding your system by using the commands listed in this chapter. for each question, write the command you used to obtain the answer. a. what are the total number of inodes in the root filesystem? how many are currently utilized? how many are available for use? b. what filesystems are currently mounted on your system? c. what filesystems are available to be mounted on your system? d. what filesystems will be automatically mounted at boot time?

Experimental data that is expressed using numbers is said to be