Question 1

Optical bar recognition senses data encoded in the series of thick and thin black bars in bar codes.

Accepted Answer

Optical bar recognition technology is used to sense data encoded in the series of thick and thin black bars in bar codes.

Question 2

The control unit is the part of the CPU where all arithmetic and logic operations take place.

Accepted Answer

The control unit is responsible for directing and coordinating the operations of the CPU, but it is the arithmetic logic unit (ALU) where all arithmetic and logic operations take place.

Question 3

____,also called main memory or primary memory,is located near the CPU and stores data and instructions just before and immediately after the CPU processes them.
A) External storage
B) ALU
C) ROM
D) Internal memory

Accepted Answer

Internal memory, also known as main memory or primary memory, is located near the CPU and stores data and instructions just before and immediately after the CPU processes them. External storage refers to devices such as hard drives, flash drives, and CDs that are used to store data and programs for long-term access. The ALU (Arithmetic Logic Unit) is a component of the CPU that performs arithmetic and logical operations. ROM (Read-Only Memory) is a type of non-volatile memory that stores firmware or software that is permanently programmed into the hardware of a device.

Question 4

Hardware,in computer terms,refers to the physical components of the computer.

Accepted Answer

Hardware includes components like the motherboard, CPU, memory, hard drive, and other physical parts of the computer. Software, on the other hand, refers to the programs and instructions that tell the computer what to do.

Question 5

Vendors are not offering leasing programs anymore.

Accepted Answer

This statement is not accurate. While some vendors may have discontinued their leasing programs, there are still many vendors who offer leasing options to customers.

Question 6

So far,PCs have trailed notebooks in terms of speed,memory,and hard disk capacity.

Accepted Answer

This statement is false. Historically, desktop PCs have typically had higher performance, greater memory capacity, and larger hard drives than notebooks due to their larger size and more robust components. However, in recent years, the gap between the two has narrowed as technology has advanced and manufacturers have developed more powerful and compact components for laptops.

Question 7

Businesses that must handle business transactions and store large amounts of data in a central computer often use mainframes,which some IT professionals fondly call "big iron."

Accepted Answer

This statement is true. Mainframes are commonly used by businesses to handle large volumes of transactions and data storage, and are sometimes affectionately referred to by IT professionals as "big iron."

Question 8

In direct access,data is organized one record after another.

Accepted Answer

In direct access, data is organized so that records can be retrieved directly without having to read through other records sequentially.

Question 9

The ____ is the most important part of any computer.
A) external storage
B) central processing unit
C) main memory
D) ROM

Accepted Answer

The central processing unit (CPU) is the part of the computer that performs most of the processing tasks. It is considered the brain of the computer and is responsible for executing instructions and controlling the overall operation of the system. While external storage and main memory are important for storing and accessing data, they ultimately rely on the CPU to manage and manipulate the information. ROM is important for storing critical system data and firmware, but it is not as essential to the overall functioning of the computer as the CPU.

Question 10

New processor-making technologies let engineers increase the processing speed of computers while enabling computers to use less energy and give off less heat.

Accepted Answer

New processor-making technologies, such as FinFET and ultraviolet lithography, allow for smaller and more efficient transistors, which increase processing speed and reduce power consumption and heat generation.

Question 11

____ are the most powerful computers at any given time,but are built especially for assignments that require arithmetic speed.
A) Mainframe computers
B) Mega-servers
C) Supercomputers
D) Workstations

Accepted Answer

Supercomputers are specifically designed for tasks that require high-speed computing and have the capability to perform trillions of calculations per second. They are used for scientific, medical, and military applications. Mainframe computers, mega-servers, and workstations are also powerful computers but are designed for different purposes such as running large-scale business operations, hosting websites, or performing complex design and engineering simulations.

Question 12

QuickBiz's Andrew Langston used his ____ to calculate all the costs that went into a delivery-such as car and truck purchases and maintenance,fuel costs,and driver salaries.
A) financial information system
B) inventory control system
C) data warehouse
D) relational database

Accepted Answer

A financial information system is designed to collect, process, and analyze financial data. It is the most appropriate choice for calculating the costs associated with a delivery, including car and truck purchases and maintenance, fuel costs, and driver salaries. An inventory control system would be more focused on tracking and managing inventory levels, while a data warehouse and relational database are designed for storing and retrieving large sets of data, but may not be suitable for financial calculations.

Question 13

Popular output devices include the keyboard,mouse,trackball,microphone,and various types of scanners.

Accepted Answer

The listed devices are all input devices, not output devices. Popular output devices include monitors, printers, and speakers.

Question 14

Optical tape uses the same technology as optical discs to store and retrieve data.

Accepted Answer

Optical tape uses lasers to read and write data just like optical discs, but the data is stored in a linear format on a magnetic tape instead of a circular format on a disc.

Question 15

All other things being equal,the greater the clock rate,the faster the machine,because it can fetch,decode,execute,and store more instructions per second.

Accepted Answer

This statement is true. Clock rate, also known as clock speed, refers to the frequency at which a computer's processor executes instructions. The higher the clock rate, the more instructions the processor can execute per second, resulting in a faster machine.

Question 16

Input devices,most commonly computer monitors and printers,deliver information from the computer to a person.

Accepted Answer

Input devices, such as keyboards and mice, allow a person to enter data into a computer, while monitors and printers are output devices that deliver information from the computer to a person.

Question 17

It is likely that within a few years we will rarely see CRT monitors in offices or homes.

Accepted Answer

CRT monitors are becoming increasingly outdated and are being replaced by more modern and efficient display technologies such as LCD and LED displays. As technology advances, the production and sale of CRT monitors is expected to decline rapidly.

Question 18

The most widely used storage medium is the optical disc.

Accepted Answer

While optical discs like CDs, DVDs, and Blu-rays were popular in the past, flash drives, external hard drives, and cloud storage have surpassed them in popularity and usage.

Question 19

The Mac OS and Windows Vista operating systems include a voice recognition feature.

Accepted Answer

Both Mac OS and Windows Vista have a built-in voice recognition feature.

Question 20

Storage and retrieval on sequential storage devices are slow but the devices are inexpensive,which makes tapes suitable for backup purposes.

Accepted Answer

Sequential storage devices like tapes are slow but relatively inexpensive, which makes them suitable for backup purposes.

Quiz 4: Business Hardware