BISM 1200 Introduction to Computing Sound Byte Lab Chapter 5
Hard Disk Anatomy Interactive
Introduction: Computers became practical for everyday use when they gained the capability to hold programs and data in long-term storage.
Learn how the computer’s hard drive stores data, accesses data, and runs efficiently.
1. Which of the following statements is FALSE concerning platters?
a. Platters only spin while data is being retrieved.
b. A typical hard drive contains two or more platters.
c. Data is recorded on both the top and bottom of platters.
d. Platters are constantly spinning at thousands of RPMs.
2. Which statement about hard drives is TRUE?
a. Hard drives are volatile, which means data is lost when power is turned off.
b. Hard drives are nonvolatile, which means data is lost when power is turned off.
c. Hard drives are volatile, which means data is retained when power is turned off.
d. Hard drives are nonvolatile, which means data is retained when power is turned off.
3. Why must the hard drive case remain sealed?
a. Because any change in the balance of the arms and motor will destroy its balance
b. So that you can eject the disk only when it is finished
c. To avoid contact with contaminants that can destroy data
d. Because it is soldered together and does not have a seam to open
4. When formatting a hard drive, the platters are NOT organized into __________.
a. tracks
b. pods
c. rings
d. sectors
5. Data is requested from the hard drive by the ________.
a. motherboard
b. processor
c. hard drive controller
d. memory
6. Formatting a disk __________.
a. fills the disk with data from the inside to the outside
b. is required before any information can be recorded on the hard drive
c. compresses files to make disk access more efficient
d. reorganizes fragmented files
7. After the arm has moved to the right track, the delay experienced while waiting for the correct sector to appear below the arm is called __________.
a. seek delay
b. rotational latency
c. access time
d. positional lag
8. How fast does the actuator move the arm from the center to the outer edge of the platter?
a. One time per second
b. 10 times per second
c. 50 times per second
d. 100 times per second
9. The ________ are coated with a thin magnetically sensitive coating where the data is stored and sits on top of the DC spindle motor.
a. actuator
b. read/write head
c. platter
d. arm
10. Which of the following is NOT a benefit of defragmentation?
a. Defragmentation makes the platters spin faster.
b. Defragmentation makes the computer run much more efficiently.
c. Defragmentation reorganizes the pieces of a file.
d. Defragmentation increases access speed.
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