Determine the order in which optimized c-scan would service, Computer Engineering

Assignment Help:

Consider the situation in which the disk read/write head is currently located at track 45 (of tracks 0-255) and moving in the positive direction. Assume that the following track requests have been made in this order: 40, 67, 11, 240, and 87. What is the order in which optimized C-SCAN would service these requests and what is the total seek distance? Ans:

Disk queue: 40, 67, 11, 240, 87 and disk are presently located on track 45.The order wherein optimized C-SCAN would service such requests is demonstrated by the following diagram.

1514_Disk queue.png

Total seek distance = (67-45)+(87-67)+(240-87)+(255-240)+255+(11-0)+(40-11)

=22+20+153+15+255+11+29

=505


Related Discussions:- Determine the order in which optimized c-scan would service

Cemistry, Discuss scales and sludge

Discuss scales and sludge

Find farthest distance from exchange where subscriber locate, An exchange u...

An exchange uses a -40 V battery to drive subscriber lines. A resistance of 250 ohms is placed in series with the battery to protect it from short circuits. The subscribers are req

Display data in the combo box, Which property on a Combo Box do you set wit...

Which property on a Combo Box do you set with a column name, prior to setting the Data Source, to display data in the combo box? ComboBox.DataValueField = "ColumnName" When

Find cross points and primary no. in 3-tage satge switching, A three stage ...

A three stage switching structure supports 100 inlets and 400 outlets. Find the number of cross points, and the number of primary and secondary switches used in the design. We

What is parsing, a. Define parsing? Give difference among top down parsing ...

a. Define parsing? Give difference among top down parsing and bottom up parsing. b. Determine the self-relocating programs? Why self-relocating programs are less efficient then

Explain in brief about the insert operation, INSERT OPERATION The inser...

INSERT OPERATION The insert operation inserts a new value into a set of bits. This is done by first masking bits and then O ring them with required value. For illustration, sup

Compute physical address of data byte, Q. Compute Physical address of data ...

Q. Compute Physical address of data byte? Offset of data byte = 0020h Value of data segment register (DS) = 3000h Physical address of data byte   This computation

What is stack, Stack is a portion of RAM used for saving the content of Pro...

Stack is a portion of RAM used for saving the content of Program Counter and common purpose registers. LIFO stacks, also called as "push down" stacks, are the conceptually easi

Explian two limitations of dead-box analysis, (a) Explian two limitations o...

(a) Explian two limitations of dead-box analysis. (b) Describe why memory analysis is difficult. (c) With reference to the "Shadow Walker" rootkit, explain what is meant by

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd