Q.1

Static memory will maintain storage even if power is removed.

  • True
  • False
Q.2

Which is not part of a hard disk drive?

  • Spindle
  • Platter
  • Read/write head
  • Valve
Q.3

The TMS44100 4M × 1 DRAM does not have a chip select (SC) input.

  • True
  • False
Q.4

Which of the following best describes EPROMs?

  • EPROMs can be programmed only once.
  • EPROMs can be erased by UV.
  • EPROMs can be erased by shorting all inputs to the ground.
  • All of the above.
Q.5

The check sum method of testing a ROM:

  • indicates if the data in more than one memory location is incorrect.
  • provides a means for locating and correcting data errors in specific memory locations.
  • allows data errors to be pinpointed to a specific memory location.
  • simply indicates that the contents of the ROM are incorrect.
Q.6

Testing and troubleshooting the decoding logic will not reveal problems with the memory chips and their connections to the CPU busses.

  • True
  • False
Q.7

An optical disk is an example of magnetic storage.

  • True
  • False
Q.8

The address-decoding scheme for a 16K-byte EPROM memory system requires a 1-to-8-address decoder when 4K × 8 memory is used.

  • True
  • False
Q.9

The most widespread application of ROMs is in the storage of data and program codes that must be available on power-down in the microprocessor-based systems. These data and program codes are called firmware because they are firmly stored in hardware.

  • True
  • False
Q.10

A type of memory that is accessed serially (one location after the other) is a ________.

  • ROM
  • read/write memory
  • shift register
  • PLD
Q.11

Static RAMs (SRAMs) use internal capacitors as basic storage elements.

  • True
  • False
Q.12

A burst refresh and a normal memory operation of a DRAM can be interspersed.

  • True
  • False
Q.13

ROMs retain data when the ________.

  • power is off
  • power is on
  • system is down
  • all of the above
Q.14

The memory operation that presents data on the memory outputs after entering a new address is called ________.

  • a read cycle
  • a write cycle
  • a refresh cycle
  • a chip select
Q.15

The highest-speed magnetic storage is achieved by using a floppy disk.

  • True
  • False
Q.16

All rows in a 2118 dynamic RAM need to be refreshed ________.

  • every second
  • every millisecond
  • every 50 milliseconds
  • every 2 milliseconds
Q.17

How many storage locations are available when a memory device has 12 address lines?

  • 144
  • 512
  • 2048
  • 4096
Q.18

Assume a ROM to be tested is compared with a known good ROM. If the checksums differ, the ROM is ________.

  • very likely to be good
  • definitely good
  • very likely to be bad
  • definitely bad
Q.19

One of the most important specifications on magnetic media is the ________.

  • rotation speed
  • tracks per inch
  • data transfer rate
  • polarity reversal rate
Q.20

Once a PROM is programmed it can be changed by applying a small electrical charge.

  • True
  • False
Q.21

The time from the beginning of a read cycle to the point when the data output is valid is called propagation delay.

  • True
  • False
Q.22

One of the advantages of DRAMs is their ability to store data without needing periodic refreshment of the memory contents.

  • True
  • False
Q.23

The basic purpose of tristate or open-collector outputs on a memory is to ________.

  • isolate devices connected to a common bus
  • simplify the circuitry
  • provide faster transitions of the output
  • increase the output current
Q.24

ROMs are used to store data that generally cannot be easily changed.

  • True
  • False
Q.25

RAM stands for Readily Accessible Memory.

  • True
  • False
Q.26

One of the most important specifications on magnetic media is the ________.

  • rotation speed
  • tracks per inch
  • data transfer rate
  • polarity reversal rate
Q.27

Dynamic memory is memory ________.

  • that will maintain storage even if power is removed
  • whose data can never be altered
  • that must be refreshed periodically or it will lose storage
  • that maintains storage as long as power is applied
Q.28

The floating-gate MOSFET is the actual storage element for EEPROMs. An electron charge will remain on the floating gate for more than 10 years unless drained off electrically.

  • True
  • False
Q.29

ROM access time is defined as ________.

  • how long it takes to program the ROM chip
  • being the difference between the READ and WRITE times
  • the time it takes to get valid output data after a valid address is applied
  • the time required to activate the address lines after the ENABLE line is at a valid level
Q.30

FIFO is formed by an arrangement of ________.

  • diodes
  • transistors
  • MOS cells
  • shift registers
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