CS200-Chapter6-Homework

Transcription

1 Name: Class: Date: CS200-Chapter6-Homework Multiple Choice Identify the choice that best completes the statement or answers the question. 1. storage is the physical material on which a computer keeps data, instructions, and information. a. Primary c. Tertiary b. Secondary d. all of the above 2. Which of the following is not a secondary storage medium? a. CD c. DVD b. RAM d. flash memory card 3. A(n) device is the computer hardware that records and/or retrieves items to and from storage media. a. concatenation c. resolved b. indexed d. storage 4. disks use magnetic particles to store data, instructions, and information on a disk s surface. a. Hard c. Optical b. Flash d. Indexed 5. Which is a magnetic storage medium? a. DVD c. ExpressCard b. hard disk d. flash memory card 6. A(n) disk is a storage device that contains one or more inflexible, circular platters that store data, instructions, and information. a. soft c. hard b. platter d. aluminum 7. Experts estimate that hard disks using perpendicular recording will provide storage capacities about than disks using longitudinal recording. a. 10 times greater c. 100 times greater b. 10 times less d. 100 times less 1

2 Name: 8. Which of the following is not a characteristic of a hard disk like the one shown in the accompanying figure? a. platter c. track b. cylinder d. chip 9. Hard disks like the one shown in the accompanying figure spin at 5,400 to rpm. a. 6,000 c. 15,000 b. 10,000 d. 20, A occurs when the read/write head of a hard disk like the one in the accompanying figure touches the surface of a platter. a. backup c. reading b. head crash d. writing 11. A(n) is a duplicate of a file, program, or disk that can be used in case the original is lost, damaged, or destroyed. a. cache c. home site b. backup d. baseline 2

3 Name: 12. A group of two or more integrated hard disks is called a(n). a. pocket c. RAID b. UFC d. baseline 13. A(n) hard drive is a self-contained unit that you insert in and remove from a slot or USB port in a device or a computer. a. personal c. USB b. mini d. pocket 14. A disk consists of a special-purpose chip and electronic circuits that control the transfer of data, instructions, and information from a disk to and from the system bus and other components in a computer. a. controller c. indexer b. router d. tablet 15. Which is not a type of disk controller? a. SATA c. SCSI b. EIDE d. UMD 16. Which of the following is not an advantage of SAS over parallel SCSI? a. reduced interference b. thicker, shorter cables c. less expensive d. support for many more connected devices at once 17. All of the following are flash memory devices except _. a. CompactFlash c. Memory Stick b. Secure Digital d. BD-RE 18. With a storage capacity of 512 MB to 100 GB, a(n) card is used in digital cameras, smart phones, PDAs, photo printers, portable media players, and notebook and desktop computers. a. Secure Digital c. xd Picture Card b. CompactFlash d. Express Card 19. With a storage capacity of 512 MB to 8 GB, a(n) card is used in digital cameras, digital video cameras, smart phones, PDAs, photo printers, and portable media players. a. Secure Digital c. Compact Flash b. Express Card d. xd Picture Card 20. With a storage capacity of 256 MB to 2 GB, a(n) is used in digital cameras and photo printers. a. Secure Digital c. Compact Flash b. xd Picture Card d. Express Card 21. With a storage capacity of 1 to 16 GB, a(n) is used in digital cameras, smart phones, and handheld game consoles. a. Compact Flash c. xd Picture Card b. Secure Digital d. Memory Stick 22. A card is a device that reads and writes data, instructions, and information stored on flash memory cards. a. access stick c. access port b. reader/writer d. restorer 3

4 Name: 23. Current USB flash drives have storage capacities ranging from. a. 128 MB to 24 GB c. 256 MB to 48 GB b. 256 MB to 32 GB d. 512 MB to 64 GB 24. storage is an Internet service that provides hard disk storage to computer users. a. Micro c. Flash b. Cloud d. USB 25. Some users choose storage instead of storing data locally on a hard disk or other media. a. Dynamic c. Static b. Router d. Cloud 26. A(n) disc is a type of optical storage media that consists of a flat, round, portable disc made of metal, plastic, and lacquer. a. magnetic c. optical b. backup d. tablet 27. A(n) disc can be read, written to, and erased. a. CD-ROM c. DVD-ROM b. CD-R d. DVD+RW 28. A typical CD-ROM holds up to of data. a. 1 MB c. 1 TB b. 1 GB d. 1 PB 29. A Kodak CD stores digital versions of a single roll of film using a jpg file format. a. Optical c. Graphics b. Picture d. Image 30. A newer, quite expensive DVD format is, which has storage capacities of 100 GB, with expectations of exceeding 200 GB in the future. a. Blu-ray c. DVD-RW b. DVD-R d. DVD-ROM 31. A(n) is a high-capacity optical disc which users can read but not write on or erase. a. DVD-R c. DVD-ROM b. DVD-RW d. Blu-ray 32. is a DVD format that potentially will contain up to 20 layers, each with a capacity of 5 GB. a. DVD-RW c. CD-ROM b. DVD-ROM d. HD VMD 4

5 Name: 33. As pictured in the accompanying figure, is a magnetically coated ribbon of plastic capable of storing large amounts of data and information at a low cost. a. tape c. indexed data b. Opticon d. threaded memory 34. A tape reads and writes data and information on a tape. a. reader c. port b. drive d. adapter 35. A(n) stores data on a thin microprocessor embedded in the card. a. ThumbCard c. ExpressCard b. AccessCard d. smart card 36. is a 100- to 215-foot roll of film used to store microscopic images of documents. a. Microfilm c. Microfiche b. Microtape d. Microsheet 37. is a small sheet of film, usually about 4 x 6 inches, used to store microscopic images of documents. a. Microfilm c. Microfiche b. Microtape d. Microsheet 38. Which has the longest life expectancy? a. microfilm c. CDs b. hard disks d. DVDs 39. A large business, commonly referred to as a(n), has hundreds or thousands of employees. a. commonwealth c. enterprise b. megacorp d. legacy 40. In an enterprise, some storage systems can provide more than of storage capacity. a. 185 MB c. 185 PB b. 185 GB d. 185 TB 5

6 Name: True/False Indicate whether the statement is true or false. 41. A storage medium also is called secondary storage. 42. The access time of memory is slow, compared with the access time of storage. 43. When storage devices write on storage media, they are creating input. 44. You can read from and write on a hard disk any number of times. 45. A perimeter is a narrow recording band that forms a full circle on the surface of the disk. 46. As shown in the accompanying figure, tracks are broken into small arcs called sectors. 47. The actual capacity of a hard disk like the one shown in the accompanying figure sometimes is different from the advertised capacity because of bad sectors on the disk. 48. The location of a hard disk s read/write heads often is referred to by its cylinder. 49. The distance between a hard disk s read/write head and the platter is about 1/10 of an inch. 6

7 Name: 50. While a computer is running, the platters in the hard disk rotate at a high rate of speed. 51. Removable hard disks have storage capacities up to 750 GB. 52. A Memory Stick Micro (M2) has a storage capacity up to 4 GB. 53. Current USB flash drives have storage capacities up to 4 GB. 54. ExpressCard modules like the one shown in the accompanying figure can be used to add memory, storage, communications, multimedia, and security capabilities to a computer. 55. Users subscribe to a cloud storage service in order to access files on the Internet from any computer or device that has Internet access. 56. Amazon EC2 and Amazon S3 are examples of cloud storage providers at the enterprise level. 57. Types of services offered by cloud storage providers vary. 58. A doctor, for example, can use cloud storage to view x-ray images from another hospital, home, or office. 59. Optical discs store items by using microscopic lands (indentations) and pits (flat areas). 60. You cannot erase a DVD-ROM. 7

8 Name: 61. You can erase a CD-RW. 62. A mini-dvd that has grown in popularity is the Blu-ray disc. 63. Tape like that shown in the accompanying figure no longer is used as a primary method of storage. 64. Smart cards cannot be updated. 65. One advantage of microfilm is that it reduces the amount of paper firms must handle. 8