3. A hard disk has 64 sectors/ track, 16 platters, each with 2 regarding surface and 2000cylinders. The address of a sector is given as corresponds tosector number is

EXPLANATION: Given that the sectors that are present for every track are 64. The hard disk contains…

Answered: 3. A hard disk has 64 sectors track, 16…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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A computer system contains a big endian byte addressable memory system with 8 separate memory modules. Each memory module is 32 bits wide and contains 134217728 cells. Cells within each memory module are numbered 0 through 134217727. a) If the memory employs high order interleaving, what is the 32-bit memory address of cell 1048578 within module 3? b) If the high order interleaved memory uses little-endian instead of big-endian storage order, what is the 32-bit memory address of cell 511 within module 1? c) If the memory employs low order interleaving, what is the 32-bit memory address of byte 1048575 within module 2? Bytes are numbered starting from 0. Express the address in hex. d) What is the main advantage of using low-order interleaved memory compared to using high-order interleaved memory?
The disc concept reduces lost time caused by rotational delay by using staggered addressing.
Data bit recording in magnetic discs is based on which property of magnetic material? Please explain. Is it a problem if this feature is too large? Why is that? A disk drive is provided that can write data at a flux change rate of 6 million per second. Calculate the maximum number of data bytes that can be stored in one ring of the disk when the disk is rotated at 6000 rpm. Indicate how the increase in disk rotation speed affects the data storage capacity.
7. Suppose the GPIO port F of the TIVA board has been properly initialized. A delay function is also provided. The delay is set to 0.1 sec for each function call. #define GPIO_PORTF_DATA_R (*((volatile unsigned long *)O×400253FC)) void Delay(void) {unsigned long volatile time; time = 1600000; // 0.1sec while(time){ time--; } Write embedded C code to generate a square wave on pin 5 of GPIO port F. The frequency of the square wave should be 1 Hz. 0.5 sec
A disk has 1024 sectors/track and 4096 bits/sector. Assuming a rotation rate of 10,200 RPM, calculate the sustained transfer rate of the disk over one track.
Consider a 4 inch disk with 64 double-surfaced platters rotating at 7200 rpm. It has a usable capacity of 16 gigabytes stored on 1024 cylinders. Assume 12% of each track is used as overhead with average seek time 10ms. compute the time required to transfer 8-K byte sector
A large endian byte addressed memory system with eight distinct memory modules is included in a computer system. Each memory module has 134217728 cells and is 32 bits wide. a) What is the 32-bit memory address of cell 1048578 in module 3 if the memory uses high order interleaving? b) What is the 32-bit memory address of byte 1048575 inside module 2 if the memory uses high order interleaving? c) What is the 32-bit memory address of cell 511 inside module 1 if the high order interleaved memory utilises little endian storage order instead of big endian storage order?
oprating system Consider a hard disk that rotates at 10 000 rpm. The disk has 1600 cylinders and 32 tracks on each cylinder. The disk is divided into four 400-cylinder zones that contain 360,400, 440 and 480 sectors per track. Each sector contains 1024 bytes. (a) What is the maximum data transfer rate between the disk and the controller's bufer? (b) Determine the disk capacity! (c) How much time is needed to read the data from the entire disk (track per track,sector per sector) if the arm needs 0.5 ms to move to an adjacent cylinder?
Staggered addressing is how a disc avoids wasting time due to spinning delay.
In a bullet point format, describe how the boots work.
The upper limit of disk drive superparamagnetism
To locate the first sector of a disk with soft segments, use the Index. Explain?

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3. A hard disk has 64 sectors track, 16 platters, each with 2 regarding surface and 2000 cylinders. The address of a sector is given as e, h, where ecylinder no., h- surface no, s-sector no. 0 sector is addressed as 0, 0, 0. The address <500, 20, 32 corresponds to soctor number is