Question 1

The cache and main memory are nonvolatile.

Accepted Answer

Both the cache and main memory are volatile memory types. This means that they require power to maintain their contents, and data stored in them will be lost if the power is turned off or disrupted. Nonvolatile memory types, on the other hand, retain their data even after power loss, such as flash drives or hard drives.

Question 2

Random access memory is volatile.

Accepted Answer

Random access memory (RAM) is a type of computer memory that can be accessed randomly, but it is volatile, which means that its contents are lost when power is turned off or during a system restart.

Question 3

Bytes lack the capacity to measure sizes of noncharacter data.

Accepted Answer

False

Question 4

Hardware consists of electronic components that are used to input, process, output, and store data.

Accepted Answer

This is indeed true. Hardware includes devices such as keyboards, mice, CPUs, monitors, printers, and hard drives, among others, used to manipulate data.

Question 5

A 64-bit, dual processor is needed to effectively utilize more than 4 GB of main memory.

Accepted Answer

32-bit processors can only address up to 4 GB of memory, so in order to effectively use more than 4 GB, a 64-bit processor is required. Dual processors can also help to better utilize the available memory by spreading out the workload.

Question 6

Magnetic and optical disks are nonvolatile.

Accepted Answer

Magnetic and optical disks are nonvolatile, meaning that their data remains intact even when they are not powered.

Question 7

The operating system creates and manages the user interface.

Accepted Answer

The operating system is responsible for creating and managing the user interface, which allows users to interact with their computer or device. This includes the desktop environment, menus, toolbars, and other graphical elements that make it easy for users to access applications and perform various tasks. Without the operating system, the user interface would not exist, and users would have no way to control or interact with their computer.

Question 8

A megabyte, or MB, is equal to 1,024 bytes.

Accepted Answer

The answer of A megabyte, or MB, is equal to...

Question 9

Quad-processor computers have two CPUs.

Accepted Answer

Quad-processor computers have four CPUs, not two.

Question 10

The CPU stores results of computations on the hard drive.

Accepted Answer

The CPU does not store results of computations on the hard drive. It stores them in its registers and/or cache memory. The hard drive is used for long-term storage of data, not for temporary storage of CPU calculations.

Question 11

An operating system is a hardware device used to input data into a computer.

Accepted Answer

An operating system is a software program that manages the computer's hardware and software resources and provides common services for computer programs. It is not a hardware device used to input data.

Question 12

A CPU is an example of an input device.

Accepted Answer

A CPU (Central Processing Unit) is actually an output device, as it processes information and provides output in the form of computations or results. Input devices include keyboards, mice, scanners, and cameras, which provide information or data to the CPU.

Question 13

An operating system controls a computer's resources.

Accepted Answer

An operating system is a software that manages a computer's hardware and software resources, including CPU, memory, disk drives, and peripherals.

Question 14

The CPU of a computing device stores data and programs.

Accepted Answer

The CPU (Central Processing Unit) of a computing device is responsible for carrying out instructions, but it does not typically store data and programs. Data and programs are usually stored in memory, such as RAM (Random Access Memory) or on a hard drive.

Question 15

A server is a computer that is designed to support processing from many remote computers and users.

Accepted Answer

A server is a computer that provides services or resources to other computers or devices on the same network. It is designed to support processing requests from multiple clients or users simultaneously.

Question 16

The main memory of a computer is sometimes called random access memory.

Accepted Answer

The main memory of a computer is often referred to as random access memory (RAM) because it can be accessed randomly, meaning any byte of memory can be accessed without touching the preceding bytes.

Question 17

As predicted by Moore's Law, CPU speeds continually increase.

Accepted Answer

Moore's Law states that the number of transistors on a microchip will double approximately every two years, leading to an increase in CPU processing power and speed. This prediction has held true for several decades, and CPU speeds continue to increase as technology advances.

Question 18

Volatile memory devices can store data without using external power.

Accepted Answer

Volatile memory devices require external power to maintain the data they store. Examples of volatile memory devices include Random Access Memory (RAM) and cache memory.

Question 19

Program instructions for programs, such as Microsoft Excel, are stored in the main memory of a computer.

Accepted Answer

Program instructions for programs such as Microsoft Excel are stored in the main memory (RAM) of a computer.

Question 20

A central processing unit is sometimes called "the brain" of the computer.

Accepted Answer

The central processing unit (CPU) is often referred to as "the brain" of a computer because it performs the majority of the calculations and operations necessary for the computer to function.

Quiz 4: Hardware and Software