Question 1

Computers need to store larger amounts of data and instructions more permanently than main memory allows.Secondary storage serves this purpose.

Accepted Answer

Secondary storage is used to store larger amounts of data and instructions more permanently than main memory allows. Main memory is volatile, meaning that its contents are lost when the computer is turned off, while secondary storage is non-volatile, meaning that its contents are retained even when the computer is turned off. Examples of secondary storage include hard disk drives, solid-state drives, and external storage devices such as USB drives and memory cards.

Question 2

Compared to main memory, secondary storage offers the advantages of volatility, increased capacity, and lower costs.

Accepted Answer

Secondary storage, such as hard drives or solid-state drives, is non-volatile, meaning it retains data even when the power is turned off. However, it typically has lower access speeds, smaller transfer rates, and higher costs per unit of storage compared to main memory (RAM).

Question 3

RAID is a method of storing data so that it can be accessed more quickly.

Accepted Answer

The answer of RAID is a method of storing data...

Question 4

A gigabyte is about one trillion bytes of data.

Accepted Answer

A gigabyte is approximately one billion bytes of data, not one trillion. One trillion bytes is a terabyte.

Question 5

Large, bulky tape drives have been replaced with much smaller tape cartridge devices measuring a few millimetres in diameter that take up much less floor space and allow hundreds of tape cartridges to be stored in a small area.

Accepted Answer

The answer of Large, bulky tape drives have been replaced...

Question 6

One of the advantages of handheld computers is that they require little power relative to their size.

Accepted Answer

The answer of One of the advantages of handheld computers...

Question 7

Dual-core and quad-core processors are now common and help boost the computer's processing power.

Accepted Answer

Dual-core and quad-core processors are now commonly used in modern computers and help increase processing power by adding more cores to the CPU.

Question 8

Parallel processing, a form of multiprocessing, speeds processing by linking several processors to operate at the same time.

Accepted Answer

Parallel processing involves using multiple processors to perform tasks simultaneously, which speeds up processing time. This makes it a form of multiprocessing.

Question 9

A DVD can hold at least six times as much data as a CD disk.

Accepted Answer

This statement is true. A standard DVD can hold 4.7 to 8.5 gigabytes of data, while a typical CD can hold only 700 megabytes of data. Therefore, a DVD can hold at least six times as much data as a CD.

Question 10

Grid computing is high-powered data processing performed in support of our country's electric grid.

Accepted Answer

Grid computing refers to the use of multiple computers to solve a complex computational problem or process large amounts of data. It is not specifically related to the electric grid.

Question 11

RAM stands for random access memory; it loses its contents if the current is turned off or disrupted.

Accepted Answer

RAM is a volatile type of memory, meaning it requires continuous power to retain its contents. Once the power is turned off or disrupted, the contents are lost.

Question 12

There are a number of compact disk devices including read only, recordable, and rewritable.

Accepted Answer

This statement is true. There are various types of compact disks such as CD-ROM (read-only), CD-R (recordable) and CD-RW (rewritable).

Question 13

Policy-based storage management systems are used to manage memory usage to maximize the efficiency of servers.

Accepted Answer

The answer of Policy-based storage management systems are used to...

Question 14

Netbook computers are ideal for users who need to run demanding applications, have many applications open at once, or need lots of data storage capacity.

Accepted Answer

Netbook computers are not designed for running demanding applications or having multiple applications open at once. They typically have limited storage capacity.

Question 15

LCD monitors generally use between 35 and 50 percent less power than plasma screens, and OLED monitors use even less power than LCD monitors.

Accepted Answer

This statement is true. LCD monitors are known for their energy efficiency and typically use less power than plasma screens. OLED monitors are even more efficient than LCD monitors, using less power to produce brighter images.

Question 16

The devices used to sequentially access secondary storage devices are called DASD devices.

Accepted Answer

The answer of The devices used to sequentially access secondary...

Question 17

The overall trend in secondary storage devices is toward use of direct access methods, higher capacity, and increased volatility.

Accepted Answer

Secondary storage devices are trending towards direct access methods and higher capacity, but they are characterized by non-volatility, meaning they retain data without power.

Question 18

Solid state storage devices store data in memory chips rather than magnetic or optical media, and they require less power to operate while providing slower data access than magnetic data storage devices.

Accepted Answer

Solid state storage devices provide faster data access than magnetic data storage devices, not slower.

Question 19

MICR is a technology from the 1950s still used to speed the processing of cheques.

Accepted Answer

MICR (Magnetic Ink Character Recognition) is still widely used today to help automate the processing of cheques.

Question 20

Like a display screen, the quality or resolution of a printer's output depends on the number of dots per inch.

Accepted Answer

The statement is true. The number of dots per inch (dpi) in a printer's output determines its quality and resolution, with higher dpi resulting in better output.

Quiz 3: Hardware: Input, Processing, and Output Devices