Question
b) A multi-plattered hard disk is divided into 1,000 sectors and 80,000 cylinders. There are six platter surfaces. Each block holds 1,024 bytes. The disk
b) A multi-plattered hard disk is divided into 1,000 sectors and 80,000 cylinders. There are six platter surfaces. Each block holds 1,024 bytes.
The disk is rotating at a rate of 7,200 rpm. The disk has an average seek time of 12 msec.
- What is the total capacity of this disk?
- What is the disk transfer rate in bytes per second?
- What are the minimum and maximum latency times for this disk? What is the average latency time for this disk?
d) A typical published page consists of approximately fifty lines at eighty characters per line. How many published pages of 16-bit Unicode text would fit on a typical 600 MB CD-ROM? How many published pages of text would fit on a netbook computer with an 80GB flash memory?
f) What is RAID technology? Name any two advantages of using RAID.
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Intranet And Web Databases For Dummies
Authors: Paul Litwin
1st Edition
0764502212, 9780764502217
