Q.1

Why do most dynamic RAMs use a multiplexed address bus?

  • It is the only way to do it.
  • to make it faster
  • to keep the number of pins on the chip to a minimum
Q.2

The checkerboard pattern test is used to test ________.

  • ROM
  • EEPROM
  • FPLA
  • RAM
Q.3

What is the meaning of RAM, and what is its primary role?

  • Readily Available Memory; it is the first level of memory used by the computer in all of its operations.
  • Random Access Memory; it is memory that can be reached by any sub- system within a computer, and at any time.
  • Random Access Memory; it is the memory used for short-term temporary data storage within the computer.
  • Resettable Automatic Memory; it is memory that can be used and then automatically reset, or cleared, after being read from or written to.
Q.4

In a register stack, data moves up but not down.

  • True
  • False
Q.5

Due to their ability to be easily erased and reused, magnetic memory devices are widely used for RAM.

  • True
  • False
Q.6

A typical RAM will write (store data internally) whenever the Chip Select line is active and the Write Enable line is inactive.

  • True
  • False
Q.7

When two or more devices try to send their own digital levels to a shared data bus at the same time, bus contention will take place.

  • True
  • False
Q.8

The checksum method is used to test ________.

  • ROM
  • EEPROM
  • FPLA
  • RAM
Q.9

Which type of ROM can be erased by an electrical signal?

  • ROM
  • mask ROM
  • EPROM
  • EEPROM
Q.10

Because of their nonvolatility, high speed, low power requirements, and lack of moving parts, ________ have become feasible alternatives to magnetic disk storage.

  • CD-ROMs
  • flash memory modules
  • ROMs
  • EPROMs
Q.11

ROMs are used to store data on a permanent basis.

  • True
  • False
Q.12

In DRAM operations, it is assumed that R/W is in its ________ state during a ________ operation.

  • HIGH, read
  • Hi-Z, write
  • HIGH, write
  • Hi-Z, read
Q.13

Which type of ROM can be erased by an electrical signal?

  • ROM
  • mask ROM
  • EPROM
  • EEPROM
Q.14

Information that is stored in an EEPROM ________.

  • can be modified by performing a memory write operation
  • is stored by the manufacturer and cannot be changed
  • is lost if power is interrupted
  • can be erased by applying high voltage to each storage location
Q.15

Which of the following RAM timing parameters determine its operating speed?

  • tACC
  • tAA and tACS
  • tCO and tOD
  • tRC and tWC
Q.16

The storage element for a static RAM is the ________.

  • diode
  • resistor
  • capacitor
  • flip-flop
Q.17

Most flash chips use a bulk erase operation in which all cells on the chip are erased simultaneously.

  • True
  • False
Q.18

Why do most dynamic RAMs use a multiplexed address bus?

  • It is the only way to do it.
  • to make it faster
  • to keep the number of pins on the chip to a minimum
Q.19

Because 4096 = 212, a 4K × 1 RAM requires ________ address bits to access all locations.

  • 4096
  • 10
  • 12
  • 1024
Q.20

Suppose that a certain semiconductor memory chip has a capacity of 8K ×How many bytes could be stored in this device?

  • 8,000
  • 64,000
  • 65,536
  • 8,192
Q.21

The memory operation that stores data into a memory location after entering a new address is called ________.

  • a read cycle
  • a write cycle
  • a refresh cycle
  • chip select
Q.22

The time delay called access time, tac, is a measure of the ROM's operating speed.

  • True
  • False
Q.23

The major advantage of dynamic RAM over static RAM is ________.

  • cost
  • speed
  • storage density
  • cost and storage density
Q.24

The address space of a RAM memory can be expanded using a decoder and additional memory ICs. The output of the decoder should be connected to which input line of the memory?

  • The most significant address inputs
  • The most significant data inputs
  • The read/write line
  • The chip enable
Q.25

The difference between RAM and ROM is that ________.

  • RAM has a read/write signal and ROM doesn't
  • RAM will lose data when the power is removed and ROM won't
  • RAM has random address access and ROM uses sequential address access
  • RAM has a read/write signal and ROM doesn't; RAM will lose data when the power is removed and ROM won't.
  • All of the above
Q.26

The reason the data outputs of most ROM ICs are tristate outputs is to:

  • allow for three separate data input lines.
  • allow the bidirectional flow of data between the bus lines and the ROM registers.
  • permit the connection of many ROM chips to a common data bus.
  • isolate the registers from the data bus during read operations.
Q.27

In a DRAM, what is the state of R/W during a read operation?

  • Low
  • High
  • Hi-Z
  • None of the above
Q.28

To reduce the number of pins on high-capacity DRAM chips, address ________ is used so that a single pin can accommodate two different address bits.

  • conversion
  • programming
  • multiplexing
  • firmware
Q.29

Data is written to and read from the disk via a magnetic ________ head mechanism in the floppy drive.

  • cylinder
  • read/write
  • recordable
  • cluster
Q.30

What does the term "random access" mean in terms of memory?

  • Addresses must be accessed in a specific order.
  • Any address can be accessed in any order.
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