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Рубрика:
a. byte
b. megabyte
c. bit
d. terabyte
e. none of the above
5. Which of the following statements is false?
a. Secondary storage is nonvolatile.
b. Primary storage is volatile.
c. Secondary storage contains data for immediate processing.
d. When the computer is turned off, data and instructions stored in primary storage are
erased.
e. all of the above
6. Which of the following storage and retrieval methods would be well suited to
your processing requirements, if you only need to retrieve records one at a
time, and there is no fixed pattern to the requests for data and records?
a. direct
b. sequential
c. indexed sectors
d. indexed direct
e. none of the above
7. Which of the following is true?
a. Fields are composed of bytes.
b. Files are composed of records.
c. Fields are composed of characters.
d. Records are composed of fields.
f. all of the above
8. Which of the following is not used for astorage purposes
with mainframe computers?
a. removable disks
b. fixed disks
c. mass storage systems
d. diskettes
e. none of the above
4. Write answers to the questions:
1. What is the difference between primary and secondary storage?
2. What are the advantages of a hard disk over a diskette?
a. byte b. megabyte c. bit d. terabyte e. none of the above 5. Which of the following statements is false? a. Secondary storage is nonvolatile. b. Primary storage is volatile. c. Secondary storage contains data for immediate processing. d. When the computer is turned off, data and instructions stored in primary storage are erased. e. all of the above 6. Which of the following storage and retrieval methods would be well suited to your processing requirements, if you only need to retrieve records one at a time, and there is no fixed pattern to the requests for data and records? a. direct b. sequential c. indexed sectors d. indexed direct e. none of the above 7. Which of the following is true? a. Fields are composed of bytes. b. Files are composed of records. c. Fields are composed of characters. d. Records are composed of fields. f. all of the above 8. Which of the following is not used for astorage purposes with mainframe computers? a. removable disks b. fixed disks c. mass storage systems d. diskettes e. none of the above 4. Write answers to the questions: 1. What is the difference between primary and secondary storage? 2. What are the advantages of a hard disk over a diskette?
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