Question 1

Although the operating system makes the computer usable, it does little application-specific work.

Accepted Answer

The operating system provides a platform for applications to run on, but it is not designed to perform application-specific tasks. That is the job of the applications themselves.

Question 2

The CPU stores results of computations on the hard drive.

Accepted Answer

The CPU (Central Processing Unit) does not store results of computations on the hard drive. Instead, it temporarily stores data and instructions in its registers, cache, and memory while it performs calculations. The results are then typically sent to the computer's RAM (Random Access Memory) for temporary storage or to other parts of the computer for further processing. The hard drive is used for long-term storage of files, programs, and data.

Question 3

Magnetic and optical disks are nonvolatile.

Accepted Answer

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

Question 4

The cache and main memory are volatile.

Accepted Answer

The answer of The cache and main memory are volatile....

Question 5

Bytes cannot be used to measure sizes of noncharacter data.

Accepted Answer

Bytes can be used to measure sizes of noncharacter data such as images, videos, and other binary files.

Question 6

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

Accepted Answer

Random access memory (RAM) is the primary and main memory of a computer.

Question 7

The CPU of a computing device stores data and programs.

Accepted Answer

The CPU (Central Processing Unit) of a computing device is responsible for processing data and executing programs, but it does not store data and programs. Data and programs are stored in the device's memory, such as RAM (Random Access Memory) or a hard drive.

Question 8

Every computer need not have an operating system.

Accepted Answer

Every computer requires an operating system to function properly. The operating system acts as a bridge between hardware and software, managing resources and providing a user interface. Without an operating system, a computer cannot effectively run programs and perform tasks.

Question 9

All hardware today has, at least to the level that is important to us, more or less the same components.

Accepted Answer

While hardware can vary in terms of specific components, most modern hardware has common components such as a processor, memory, storage, and input/output devices. This ensures that they can all perform similar basic functions, even if they vary in terms of their capabilities and specifications.

Question 10

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

Accepted Answer

This statement is true. A 64-bit processor is capable of addressing more memory than a 32-bit processor, which is limited to 4GB of memory. Therefore, to effectively utilize more than 4GB of memory, a computer system needs to have a 64-bit processor.

Question 11

The operating system creates and manages the user interface, including the display, keyboard, mouse, and other devices.

Accepted Answer

The operating system is responsible for creating and managing the user interface, including input and output devices such as the display, keyboard, mouse, and others.

Question 12

A CPU is an example of an input device.

Accepted Answer

A CPU (Central Processing Unit) is not an input device, it is a component within a computer that processes instructions and carries out computations. Input devices include keyboards, mice, scanners, and microphones, which allow users to provide information and commands to a computer.

Question 13

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

Accepted Answer

A server is a computer designed to provide services or resources to other computers or users on a network. It is specifically designed to handle multiple requests from remote clients and users.

Question 14

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

Accepted Answer

Program instructions for programs like Microsoft Excel are stored in the main memory of a computer, also known as RAM (Random Access Memory). This allows the computer to quickly access and execute the program instructions as needed.

Question 15

Volatile memory devices can store data without using external power.

Accepted Answer

Volatile memory devices, such as RAM, require external power to maintain the data stored in them. When power is cut off, the data is lost. Non-volatile memory devices, such as hard drives and SSDs, can retain data even without external power.

Question 16

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

Accepted Answer

Hardware is a term used for physical components of a computer system that perform various functions such as input, processing, output, and storage of data. Examples of hardware include motherboard, CPU, RAM, hard drive, monitor, keyboard, mouse, and so on.

Question 17

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

Accepted Answer

A megabyte (MB) is actually 1,024 kilobytes (KB), and each kilobyte is 1,024 bytes, making a megabyte 1,048,576 bytes.

Question 18

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

Accepted Answer

Moore's Law states that CPU speeds double approximately every two years, leading to a continual increase in speed over time.

Question 19

The cache and main memory are nonvolatile.

Accepted Answer

The cache and main memory are volatile, meaning they require a constant source of power to retain data. If power is lost, the data is lost as well.

Question 20

The operating system controls a computer's resources.

Accepted Answer

The operating system manages and allocates a computer's resources, including memory, processing power, storage, and input/output devices. It also provides a platform for software applications to run on top of. Without an operating system, a computer would not be able to function effectively.

Quiz 4: Hardware and Software