Question 1

A control unit with five wires can define up to _______ operations.&#10;A) 5&#10;B) 10&#10;C) 16&#10;D) 32

Accepted Answer

Each wire can be in one of two states (on or off), so with five wires, you can define 2^5 = 32 different operations.

Question 2

The data in _______ is erased if the computer is powered down.&#10;A) RAM&#10;B) ROM&#10;C) a tape drive&#10;D) a CD-ROM

Accepted Answer

RAM (Random Access Memory) is a volatile memory where data is stored temporarily while the computer is running. The data in RAM is erased when the computer is powered down. ROM (Read-Only Memory), on the other hand, is non-volatile and retains its data even when the computer is turned off. Tape drives and CD-ROMs are also non-volatile storage devices.

Question 3

A control bus with eight wires can define _______ operations.&#10;A) 8&#10;B) 16&#10;C) 256&#10;D) 512

Accepted Answer

A control bus with eight wires can define 2^8 = 256 operations, as each wire can be in one of two states (0 or 1), and with 8 wires, there are 2^8 possible combinations.

Question 4

_______ is a memory type with traditional flip-flop gates to hold data.&#10;A) SRAM&#10;B) DRAM&#10;C) ROM&#10;D) CROM

Accepted Answer

SRAM stands for Static Random Access Memory. It is a type of memory that uses traditional flip-flop gates to hold data, unlike DRAM (Dynamic Random Access Memory) which requires constant refreshing. SRAM is faster and more expensive than DRAM, but requires more power to maintain the stored data. ROM (Read-Only Memory) and CROM (Controlled ROM) are both types of non-volatile memory that cannot be altered or written to by the user.

Question 5

_______ can be programmed and erased using electronic impulses but can remain in a computer during erasure.&#10;A) ROM&#10;B) PROM&#10;C) EPROM&#10;D) EEPROM

Accepted Answer

EEPROM (Electrically Erasable Programmable Read-Only Memory) can be programmed and erased using electronic impulses, and unlike other types of memory like ROM (Read-Only Memory) or PROM (Programmable Read-Only Memory), it can be erased and rewritten selectively, without affecting other parts of the memory. It also has the ability to retain data even after the power is turned off, making it a type of non-volatile memory.

Question 6

If the memory has 232 words, the address bus needs to have _______ wires.&#10;A) 8&#10;B) 16&#10;C) 32&#10;D) 64

Accepted Answer

Each word will have a unique address, and since we have 232 words, we need 32 bits (2^32 = 4,294,967,296 unique addresses). Therefore, the address bus needs to have 32 wires.

Question 7

Main memory in a computer usually consists of large amounts of ______ speed memory.&#10;A) high&#10;B) medium&#10;C) low&#10;D) very high speed

Accepted Answer

The answer of Main memory in a computer usually consists...

Question 8

A _______ is a storage device to which the user can write information only once.&#10;A) CD-ROM&#10;B) CD-R&#10;C) CD-RW&#10;D) CD-RR

Accepted Answer

CD-R (Compact Disc-Recordable) is a type of optical disc that allows the user to record data onto the disc only once. Once the data is burned onto the CD-R, it cannot be erased or rewritten, making it a good choice for archival purposes or for distributing read-only information such as music or software. CD-ROMs (Choice A) are read-only discs that cannot be written to at all, while CD-RWs (Choice C) and CD-RRs (Choice D) are rewritable discs that can be written to multiple times.

Question 9

The _______ is a computer subsystem that performs operations on data.&#10;A) CPU&#10;B) memory&#10;C) I/O hardware&#10;D) bus subsystem

Accepted Answer

The CPU (Central Processing Unit) is the computer subsystem that performs operations on data.

Question 10

A word can be _______ bits.&#10;A) only 8&#10;B) only 16&#10;C) only 32&#10;D) 8, or 16, or 32

Accepted Answer

A word can vary in size depending on the architecture of the computer system. Some systems use 8-bit words, some use 16-bit words, and others use 32-bit words. Therefore, the best choice is D, as it includes all possible word sizes.

Question 11

_______ is a memory type with capacitors that need to be refreshed periodically.&#10;A) SRAM&#10;B) DRAM&#10;C) ROM&#10;D) CROM

Accepted Answer

The answer of _______ is a memory type with capacitors...

Question 12

There are _______ bytes in 16 Terabytes.&#10;A) 216&#10;B) 240&#10;C) 244&#10;D) 256

Accepted Answer

The answer of There are _______ bytes in 16 Terabytes.&#10;A)...

Question 13

_______ is a type of memory in which the user, not the manufacturer, stores programs that cannot be overwritten.&#10;A) ROM&#10;B) PROM&#10;C) EPROM&#10;D) EEPROM

Accepted Answer

The answer of _______ is a type of memory in...

Question 14

The smallest storage area on a magnetic disk that can be accessed at one time is a _______.&#10;A) track&#10;B) sector&#10;C) frame&#10;D) head

Accepted Answer

The answer of The smallest storage area on a magnetic...

Question 15

A register in a CPU can hold _______.&#10;A) only data&#10;B) only instructions&#10;C) only program counter values&#10;D) data, instruction, or program counter values

Accepted Answer

The answer of A register in a CPU can hold...

Question 16

If the memory address space is 16 MB and the word size is 8 bits, then _______ bits are needed to access each word.&#10;A) 8&#10;B) 16&#10;C) 24&#10;D) 32

Accepted Answer

The answer of If the memory address space is 16...

Question 17

A _______ is a storage device that can undergo multiple writes and erasures.&#10;A) CD-ROM&#10;B) CD-R&#10;C) CD-RW&#10;D) CD-RR

Accepted Answer

The answer of A _______ is a storage device that...

Question 18

_______ is a unit that can add two inputs.&#10;A) An ALU&#10;B) A register&#10;C) A control unit&#10;D) A tape drive

Accepted Answer

The answer of _______ is a unit that can add...

Question 19

_______ is a stand-alone storage location that holds data temporarily.&#10;A) An ALU&#10;B) A register&#10;C) A control unit&#10;D) A tape drive

Accepted Answer

The answer of _______ is a stand-alone storage location that...

Question 20

A _______ controller is a high-speed serial interface that transfers data in packets.&#10;A) SCSI&#10;B) USB&#10;C) FireWire&#10;D) USB and FireWire

Accepted Answer

The answer of A _______ controller is a high-speed serial...

Question 21

In the _______ method for synchronizing the operation of the CPU with an I/O device, a large block of data can be passed from an I/O device to memory directly.&#10;A) programmed I/O&#10;B) interrupt-driven I/O&#10;C) DMA&#10;D) isolated I/O

Accepted Answer

The answer of In the _______ method for synchronizing the...

Question 22

In the _______ method for synchronizing the operation of the CPU with an I/O device, the CPU is idle until the I/O operation is finished.&#10;A) programmed I/O&#10;B) interrupt-driven I/O&#10;C) DMA&#10;D) isolated I/O

Accepted Answer

The answer of In the _______ method for synchronizing the...

Question 23

In the _______ method for synchronizing the operation of the CPU with an I/O device, the I/O device informs the CPU when it is ready for data transfer.&#10;A) programmed I/O&#10;B) interrupt-driven I/O&#10;C) DMA&#10;D) isolated I/O

Accepted Answer

The answer of In the _______ method for synchronizing the...

Question 24

The three steps in the running of a program on a computer are performed in the specific order _______.&#10;A) fetch, execute, and decode&#10;B) decode, execute, and fetch&#10;C) fetch, decode, and execute&#10;D) decode, fetch, and execute

Accepted Answer

The answer of The three steps in the running of...

Deck 5: Computer Organization