ASSIGNMENT 11
Textbook Assignment: “Magnetic Disk Storage,” chapter 10, pages 10-1 through 10-21.
11-1. Magnetic disks are generally used as which of the
following types of storage?
1.
2.
3.
Main memory
Secondary storage
Tertiary storage
11-2. The original fixed disk had what maximum
capacity?
1. 5 megabytes
2. 10 megabytes
3. 20 megabytes
4. 50 megabytes
11-3. The first floppy disks had (a) what diameter and
(b) maximum storage capacity?
1. (a) 5 in. (b) 180K
2. (a) 5 in. (b) 360K
3. (a) 8 in. (b) 180K
4. (a) 8 in. (b) 360K
11-4. The top and bottom surfaces of a removable disk
pack are usually used for what purpose?
1. Data storage
2. Protection
3. Servo data
4. Indexing
11-5. Fixed disks have which of the following
characteristics?
1. They are small sealed units with one or more
platters
2. They are easily removed from the computer
3. They are only used with mainframe
computers
4. They are not broken
11-6.
11-7.
11-8.
11-9.
The 5.25-inch floppy disk is available with which
of the following densities?
1. 360K only
2. 720K only
3. 1.2M only
4. 360K, 720K, and 1.2M
The 3.5-inch floppy disk is available with which of
the following densities?
1. 360K only
2. 720K only
3. 1.44M only
4. 720K and 1.44M
Formatting a disk performs which of the following
operations?
1. Writes tracks only
2. Writes sectors only
3. Writes cylinders only
4. Writes tracks and sectors
Concentric rings used to store data on disk are
called
1. bytes
2. tracks
3. records
4. cylinders
11-10. Track 00 is physically located on a disk’s
recording surface in which of the following
places?
1. Top track
2. Bottom track
3. Innermost track
4. Outermost track
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