One distinguishing characteristic of memory
T or F: The basic
element of a semiconductor memory is the memory cell.
·
TRUE
T or F: A
characteristic of ROM is that it is volatile.
·
FALSE
T or F: RAM must be
provided with a constant power supply.
·
TRUE
T or F: The two
traditional forms of RAM used in computers are DRAM and SRAM.
·
TRUE
T or F: A static RAM
will hold its data as long as power is supplied to it.
·
TRUE
T or F: Nonvolatile
means that power must be continuously supplied to the memory to preserve the
bit values.
·
FALSE
T or F: Nonvolatile
means that power must be continuously supplied to the memory to preserve the
bit values.
·
FALSE
T or F: Semiconductor
memory comes in packaged chips.
·
TRUE
T or F: All DRAMs
require a refresh operation.
·
TRUE
T or F: 10. A number
of chips can be grouped together to form a memory bank.
·
TRUE
T or F: An
error-correcting code enhances the reliability of the memory at the cost of
added complexity.
·
TRUE
T or F: DRAM is much
costlier than SRAM.
·
FALSE
T or F: RDRAM is
limited by the fact that it can only send data to the processor once per bus
clock cycle.
·
FALSE
T or F: The prefetch
buffer is a memory cache located on the RAM chip.
·
TRUE
T or F: The SRAM on
the CDRAM cannot be used as a buffer to support the serial access of a block of
data.
·
FALSE
1. Which properties do all semiconductor memory
cells share?
A. they exhibit two stable states which can be used to represent binary 1 and 0
B. they are capable of being written into to set the state
C. they are capable of being read to sense the state
D. all of the above
·
D. all of the above
2. One distinguishing characteristic of memory
that is designated as _________ is that it is possible to both to read data
from the memory and to write new data into the memory easily and rapidly.
A. RAM
B. ROM
C. EPROM D. EEPROM
·
RAM
3. Which of the following memory types are
nonvolatile?
A. erasable PROM B. programmable ROM
C. flash memory D. all of the above
·
D. all of the above
4. In a _________, binary values are stored using
traditional flip-flop logic-gate configurations.
A. ROM
B. SRAM
C. DRAM D. RAM
·
B. SRAM
5. A __________ contains a permanent pattern of
data that cannot be changed, is nonvolatile, and cannot have new data written
into it.
A. RAM
B. SRAM
C. ROM
D. flash memory
·
C. ROM
6. With _________ the microchip is organized so
that a section of memory cells are erased in a single action.
A. flash memory B. SDRAM
C. DRAM D. EEPROM
·
flash memory
7. __________ can be caused by harsh
environmental abuse, manufacturing defects, and wear.
A. SEC errors B. Hard errors
C. Syndrome errors D. Soft errors
·
B. Hard errors
8. _________ can be
caused by power supply problems or alpha particles.
A. Soft errors B. AGT errors
C. Hard errors D. SEC errors
·
B. AGT errors
·
9. The _________
exchanges data with the processor synchronized to an external clock signal and
running at the full speed of the processor/memory bus without imposing wait
states.
A. DDR-DRAM B. SDRAM
C. CDRAM D. none of the above
·
DDR-DRAM
10. ________ can send
data to the processor twice per clock cycle.
A. CDRAM B. SDRAM
C. DDR-DRAM D. RDRAM
·
C. DDR-DRAM
11. __________
increases the data transfer rate by increasing the operational frequency of the
RAM chip and by increasing the prefetch buffer from 2 bits to 4 bits per chip.
A. DDR2 B. RDRAM
C. CDRAM D. DDR3
·
DDR2
12. ________ increases
the prefetch buffer size to 8 bits.
A. CDRAM B. RDRAM
C. DDR3 D. all of the above
·
C. DDR3
13. Theoretically, a
DDR module can transfer data at a clock rate in the range of __________ MHz.
A. 200 to 600 B. 400 to 1066
C. 600 to 1400 D. 800 to 1600
·
200 to 600
14. A DDR3 module
transfers data at a clock rate of __________ MHz.
A. 600 to 1200 B. 800 to 1600
C. 1000 to 2000 D. 1500 to 3000
·
B. 800 to 1600
15. The ________
enables the RAM chip to preposition bits to be placed on the data bus as
rapidly as possible.
A. flash memory B. Hamming code
C. RamBus D. Buffer
·
D. buffer
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