Chapter 11 Memories

7. A CD writer drive is used on many personal computers to write data on __________ (CD-ROMs, CD-R or CD-RWs).

CD-R or CD-RWs

77. The __________ (CD-ROM, CD-RW) disc is manufactured with small pits and lands which are interpreted by the CD drive as logical 0s and 1s.

CD-ROM

1. The section of a computer system that contains the arithmetic, logic, and control section and is the center of many data transfers is called the __________.

CPU (central processing unit)

49. Flash EEPROMs are a good substitute for a ROM but cannot replace DRAMs because they are not rewritable. (T or F)

False

36. A group of programs and data held permanently in a microcomputer's __________ (RAM, ROM) would be called firmware.

ROM

58. The acronym RDRAM stands for what when referring to a computer memory module package?

Rambus DRAM

48. The __________ (SRAM, PROM) is a read/write memory program that is quite expensive and very fast.

SRAM

64. List several computer bulk storage devices.

magnetic tapes, magnetic disks (floppy and rigid), magnetic drum, optical discs, flash memory or cards, paper tapes, paper punched cards, USB flash drive

63. External computer bulk storage devices can be classified as mechanical, __________, __________, or __________.

magnetic, optical, semiconductor

3. List three general categories of bulk storage devices based on the technology each uses.

magnetic, optical, semiconductor/mechanical

27. Read-only memories are programmed by the __________ (manufacturer, computer operator) to your specifications.

manufacturer

35. A mask-programmable ROM is programmed by the __________ (manufacturer, user).

manufacturer

25. Read-only memories never forget data and are called __________ memories.

nonvolatile

69. A gigabyte equals __________ bytes.

one billion

74. Both CDs and DVDs are classified as __________ (mechanical, optical) bulk storage devices.

optical

40. Erasing EPROMs can be done by shining __________ light through a special window in the top of the IC.

ultraviolet

14. A disadvantage of the RAM is that it is __________: it loses its data when the power is turned __________ (off, on).

volatile, off

75. The acronym WORM stands for what in reference to an optical disc?

write-one read-many

10. Copying information into a storage location is called __________ into memory.

writing

29. Refer to Fig. 11-7(a). If the input switch is at 3 (binary 0011), the Gray code output will be __________.

0010

30. Refer to Fig. 11-7(b). If the input is binary 1001, the Gray code output will be __________.

1101

34. If the ROM address input = 1001, the digital readout will be __________.

14

13. Refer to Fig. 11-3. This 64-bit unit is organized as a(n) __________ memory.

16 x 4 bit

33. If the ROM address input = 1111, the digital readout will be __________.

177

15. The RAM section of a PC usually consists of both SRAM and __________ (DRAM, PXRAM).

DRAM

60. The letters "PCMCIA" stand for what when referring to a memory card.

Personal Computer Memory Card International Association

59. DIMMs have many variations including different physical sizes, voltages, speeds, and memory capacities. (T or F)

True

6. A DVD is an optical disc that has more storage capacity than a CD-ROM (T/F).

True

2. List two one-way buses in a microcomputer system that directs memory, storage, and peripheral devices.

address bus, control bus

76. The acronym CD-RW stands for what in reference to an optical storage disc?

compact disc rewritable

61. A PCMCIA flash memory card is about the size of a thick __________ (credit card, 5.25-in. floppy disk).

credit card

73. The popular digital video disc is referred to as a DVD. The acronym DVD also stands for __________ __________ __________.

digital versatile disc

56. The acronym DDR SDRAM stands for what when referring to a computer memory module package?

double data rate synchronous DRAM

55. The acronym DIMM stands for what when referring to a computer memory module package?

dual in-line memory module

5F. Spell out the full term for the DRAM abbreviation.

dynamic random-access memory

39. The letters "EEPROM" stand for __________.

electrically erasable programmable read-only memory

5D. Spell out the full term for the EEPROM abbreviation.

electrically erasable programmable read-only memory

5C. Spell out the full term for the EPROM abbreviation.

electrically programmable read-only memory

38. The letters "EPROM" stand for __________.

erasable programmable read-only memory

26. The term __________ is used to describe microcomputer programs that are permanently held in ROM.

firmware

47. The __________ (ROM, flash memory) has high density, is reliable, and is rewritable.

flash memory

8. Based on the information in Fig. 11-2, which semiconductor memory type would be the best choice if you wanted a nonvolatile memory with read/write capabilities, and high density (memory cells are very small)?

flash memory or MRAM

4. List at least two bulk storage devices commonly found in microcomputer systems.

floppy disk drive, hard(rigid) disk drive, CDROM, DVD, USB flash drive

66. The most important bulk storage device used in almost all computer systems is the __________ (magneto-optical disk drive, hard disk drive).

hard disk drive

31. The typical ROM is __________ (high-, low-) density memory device.

high-

28. A backup battery __________ (is, is not) needed to power the ROM when the computer is turned off so it can retain its programs and data.

is not

37. The letters "PROM" stand for __________.

programmable read-only memory

5A. Spell out the full term for the RAM abbreviation.

random-access memory

9. The letters "RAM" stand for __________.

random-access memory

24. The letters "ROM" stand for __________.

read-only memory

5B. Spell out the full term for the ROM abbreviation.

read-only memory

12. A RAM might also be called a(n) __________ or scratch-pad memory.

read/write

11. Copying information from a storage location is called __________ from memory.

reading

32. If power is turned off and then back on, the counting sequence programmed into the ROM will be __________ (lost from, remain in) memory.

remain in

65. Magnetic disks are manufactured in both floppy (flexible) and __________ (amorphous, rigid) form.

rigid

57. The acronym SIMM stands for what when referring to a computer memory module package?

single in-line memory module

5E. Spell out the full term for the SRAM abbreviation.

static random-access memory