1.
A
storage medium that can hold 512 MB can hold about 512,000 bytes.
Correct Answer
B. False
Explanation
A storage medium that can hold 512 MB can hold about 512,000 kilobytes, not bytes. Since there are 1024 bytes in a kilobyte, the correct answer is False.
2.
Machine language instructions are written in just 0s and 1s.
Correct Answer
A. True
Explanation
Machine language instructions are written in just 0s and 1s because computers can only understand and execute instructions that are in binary format. In machine language, each instruction is represented by a sequence of 0s and 1s, where each digit represents a specific operation or data. This binary representation allows the computer's hardware to directly interpret and execute the instructions, making it the lowest-level programming language.
3.
The
main board for a PC located inside the system unit to which all devices must be
attached is the memory module.
Correct Answer
B. False
Explanation
The given statement is false. The main board for a PC located inside the system unit to which all devices must be attached is actually the motherboard, not the memory module. The motherboard is a crucial component that houses the CPU, RAM, and other essential hardware components, while the memory module refers specifically to the RAM module.
4.
Hard
drives tend to get more efficient as they fill up.
Correct Answer
B. False
Explanation
The statement is false. Hard drives do not get more efficient as they fill up. In fact, as hard drives fill up, the available free space decreases, which can lead to decreased performance. When a hard drive is close to being full, it may take longer to access and retrieve files, causing slower read and write speeds. Additionally, a full hard drive can also lead to fragmentation, where files are stored in non-contiguous blocks, further impacting efficiency. Therefore, it is incorrect to say that hard drives get more efficient as they fill up.
5.
FireWire
devices can be used with both FireWire and USB ports.
Correct Answer
A. True
Explanation
FireWire devices can be used with both FireWire and USB ports because FireWire ports are designed to be backward compatible with USB ports. This means that FireWire devices can be connected to either type of port using the appropriate cable or adapter. This flexibility allows FireWire devices to be used with a wider range of devices and systems, making them a versatile option for data transfer and device connectivity.
6.
The
part of the CPU that coordinates the computer’s operations is called the
_________.
Correct Answer
B. Control unit
Explanation
The control unit is responsible for coordinating and managing the operations of the computer. It directs the flow of data and instructions between the various components of the CPU, such as the arithmetic logic unit (ALU), memory, and input/output devices. It ensures that instructions are executed in the correct sequence and controls the timing of operations. The control unit plays a crucial role in executing instructions and managing the overall functioning of the computer.
7.
Which of the following types of memory is
also used in storage media?
Correct Answer
E. Flash memory
Explanation
Flash memory is a type of non-volatile memory that can be electrically erased and reprogrammed. It is commonly used in storage media such as USB drives, solid-state drives (SSDs), and memory cards. Unlike RAM, cache memory, and registers, flash memory retains its data even when the power is turned off, making it suitable for long-term storage. ROM (Read-Only Memory) is also used in storage media, but it cannot be erased or reprogrammed like flash memory. Therefore, the correct answer is Flash memory.
8.
A type of expansion card
commonly used with desktop computers.
Correct Answer
E. PCIe card
Explanation
A PCIe card is a type of expansion card commonly used with desktop computers. It is used to add additional functionality or enhance the performance of a computer system. PCIe stands for Peripheral Component Interconnect Express, which is a high-speed serial computer expansion bus standard. PCIe cards can be used to add features such as additional USB ports, network connectivity, graphics capabilities, or storage options to a desktop computer.
9.
A port commonly used to connect a printer
to a PC.
Correct Answer
C. Usb port
Explanation
A USB port is commonly used to connect a printer to a PC. USB (Universal Serial Bus) ports are a standard interface for connecting various devices to a computer, including printers. They provide a fast and convenient way to transfer data and power devices. USB ports are widely supported and compatible with most printers, making them a popular choice for printer connections.
10.
A
type of expansion card commonly used with notebook computers.
Correct Answer
A. ExpressCard
Explanation
ExpressCard is a type of expansion card commonly used with notebook computers. It is a successor to the PC Card and CardBus standards. ExpressCards are designed to provide additional functionality or connectivity to laptops, such as adding extra USB ports, Ethernet ports, or even graphics processing units. They are smaller and faster than their predecessors, making them a popular choice for expanding the capabilities of portable computers.
11.
Data entered into a computer is referred to as input.
Correct Answer
A. True
Explanation
Data that is entered into a computer is indeed referred to as input. Input refers to any information or commands that are provided to a computer system to be processed. This can include text, numbers, images, or any other form of data that is inputted into the computer through various input devices such as keyboards, mice, or scanners. Once the data is inputted, the computer can then process and manipulate it according to the instructions given. Therefore, the statement "Data entered into a computer is referred to as input" is correct.
12.
The main processing device of a PC is the hard drive
Correct Answer
B. False
Explanation
The statement "The main processing device of a PC is the hard drive" is false. The main processing device of a PC is actually the central processing unit (CPU). The CPU is responsible for executing instructions and performing calculations, while the hard drive is a storage device used to store data and programs. The CPU processes data and instructions from the RAM (Random Access Memory) and performs the necessary calculations and operations to carry out tasks.
13.
A Web browser is an example of hardware
Correct Answer
B. False
Explanation
A web browser is not an example of hardware. It is a software application that allows users to access and view websites on the internet. Hardware refers to the physical components of a computer system, such as the monitor, keyboard, and CPU.
14.
The internet is an example of a computer network
Correct Answer
A. True
Explanation
The internet is indeed an example of a computer network. It is a global network of interconnected computers and devices that communicate with each other using standardized protocols. Through the internet, users can access and share information, communicate with others, and perform various online activities. The internet allows for the seamless transfer of data and enables the connection of millions of computers worldwide, making it a prime example of a computer network.
15.
The Internet address [email protected] is an example of an email address.
Correct Answer
A. True
ExplanationThe given statement is true because the Internet address
[email protected] follows the typical format of an email address. It consists of a username (jsmith), followed by the "@" symbol, and then the domain name (course.com). This format is commonly used for email communication, where the username represents the individual user and the domain name represents the email service provider or organization. Therefore,
[email protected] can be classified as an email address.
16.
Which of the following would NOT be considered a personal computer?
Correct Answer
B. Supercomputer
Explanation
A supercomputer would not be considered a personal computer because it is a high-performance machine designed for complex calculations and data processing on a large scale. Unlike personal computers, supercomputers are typically used for scientific research, weather forecasting, simulations, and other specialized tasks that require immense computational power. Personal computers, on the other hand, are designed for individual use and are commonly used for everyday tasks such as browsing the internet, word processing, and entertainment.
17.
A numeric identifying address for a computer accessible through the internet is called a(n)
Correct Answer
C. IP address
Explanation
An IP address is a unique numeric identifier assigned to a computer that is connected to the internet. It serves as a means of communication and identification for devices within a network. Unlike a user name or email address, an IP address is not associated with a specific individual, but rather with a specific device or network interface. A URL is a web address that specifies the location of a specific webpage, while a domain name is a human-readable name that is associated with an IP address. Therefore, an IP address is the correct answer as it specifically refers to the numeric identifying address for a computer accessible through the internet.
18.
A computer used to forecast the weather, control satellites, and other highly complex applications.
Correct Answer
B. Supercomputer
Explanation
A supercomputer is the correct answer because it is specifically designed to handle highly complex tasks such as weather forecasting and satellite control. These applications require immense processing power and the ability to handle large amounts of data, which supercomputers are capable of. Consumer kiosks, desktop computers, tablet PCs, and midrange servers are not typically equipped to handle such demanding tasks.
19.
A self-service computer in a public location used to obtain information or order products
Correct Answer
A. Consumer kiosk
Explanation
A consumer kiosk is a self-service computer in a public location that allows users to obtain information or order products. It is specifically designed for consumer use and is typically found in places like shopping malls, airports, or retail stores. Unlike a desktop computer or tablet PC, which are more general-purpose devices, a consumer kiosk is dedicated to providing specific services to consumers in a convenient and accessible manner. It may have a touch screen interface and specialized software to facilitate the desired tasks.
20.
A type of computer that would likely use pen input.
Correct Answer
E. Tablet pc
Explanation
A tablet PC is a type of computer that is specifically designed to be used with pen input. It typically features a touchscreen display that allows users to interact with the device using a stylus or digital pen. This type of computer is often used in situations where handwriting or drawing is necessary, such as note-taking, graphic design, or digital art. Tablet PCs are portable and lightweight, making them convenient for on-the-go use. They are commonly used in industries such as education, healthcare, and creative fields.
21.
One advantage of using removable storage media is transportability.
Correct Answer
A. True
Explanation
Removable storage media, such as USB drives or external hard drives, offer the advantage of transportability. This means that users can easily carry and transfer data between different devices or locations. Unlike fixed storage options like internal hard drives, removable storage media can be easily disconnected and taken along. This flexibility makes it convenient for users who need to access their data on multiple devices or share it with others.
22.
Hard drives store data optically, with lasers.
Correct Answer
B. False
Explanation
Hard drives do not store data optically with lasers. Instead, hard drives use magnetic storage to store and retrieve data. The data is stored on spinning disks coated with a magnetic material, and the information is read and written using magnetic heads that move across the surface of the disks. Therefore, the correct answer is False.
23.
CDs store data on a single, spiral track.
Correct Answer
A. True
Explanation
CDs store data on a single, spiral track. This is true because CDs use a spiral groove that starts from the center and spirals outward towards the edge of the disc. The data is stored in the form of pits and lands on the surface of the disc, which are read by a laser beam as it moves along the spiral track. This spiral track allows for the efficient storage and retrieval of data on a CD.
24.
Disk caching can improve performance
Correct Answer
A. True
Explanation
Disk caching can improve performance because it allows frequently accessed data to be stored in a cache, which is a faster and more accessible storage area compared to the main disk. When a program or system needs to access data, it first checks the cache. If the data is found in the cache, it can be retrieved much faster than if it had to be retrieved from the main disk. This can greatly reduce the time it takes to access data and improve overall system performance.
25.
Smart cards are usually used to transport large amounts of data from one PC to another.
Correct Answer
B. False
Explanation
Smart cards are not typically used to transport large amounts of data from one PC to another. They are primarily used for authentication and secure storage of sensitive information such as personal identification, financial data, and access credentials. Smart cards are commonly used in applications like credit cards, identification cards, and access control systems.
26.
A(n) _____ card is an example of one type of flash memory media.
Correct Answer
D. SD
Explanation
An SD card is a type of flash memory media commonly used in electronic devices such as cameras, smartphones, and tablets. It is a small, portable storage device that can store and transfer data. SD cards are known for their high storage capacity, durability, and compatibility with a wide range of devices. They are often used to expand the storage capacity of devices or to transfer files between devices.
27.
With a(n)_______ storage devices that are located in a separate network are attached to the main network to provide storage capabilities for the network.
Correct Answer
D. Storage area network
Explanation
A storage area network (SAN) is a type of storage device that is located in a separate network and is attached to the main network to provide storage capabilities. It allows multiple servers to access the storage devices simultaneously, providing centralized storage management and improved performance. SANs are commonly used in enterprise environments where large amounts of data need to be stored and accessed by multiple users.
28.
A burned or darkened area on the optical disk.
Correct Answer
C. Pit
Explanation
A pit is a burned or darkened area on an optical disk. It is a physical indentation or depression on the surface of the disk where the laser beam used to read the disk is absorbed, resulting in a change in the reflection of light. Pits are used in various optical storage formats, such as CDs and DVDs, to represent data. The presence or absence of pits is detected by the laser beam, allowing the retrieval of stored information.
29.
A rewritable optical storage medium.
Correct Answer
A. CD+RW
Explanation
CD+RW is a correct answer because it refers to a rewritable optical storage medium. CD+RW stands for Compact Disc ReWritable and it is a type of CD that can be written, erased, and rewritten multiple times. This medium allows users to store and retrieve data, such as music, videos, and documents, making it a versatile and convenient storage option.
30.
A port often used to connect flash memory drives and external hard drives.
Correct Answer
B. USB
Explanation
USB is the correct answer because it is a widely used port for connecting flash memory drives and external hard drives. USB (Universal Serial Bus) is a standard interface that allows for the connection of various devices to a computer, including storage devices like flash drives and external hard drives. It provides a convenient and efficient way to transfer data between the computer and these external storage devices.
31.
A mouse is an example of an output device.
Correct Answer
B. False
Explanation
A mouse is not an example of an output device. It is an input device that allows the user to interact with the computer by moving the cursor on the screen and selecting or clicking on items. Output devices, on the other hand, are used to display or present information to the user, such as monitors, printers, or speakers.
32.
Mobile
devices often use touch and electronic pens for input.
Correct Answer
A. True
Explanation
Mobile devices commonly use touchscreens as a primary input method, allowing users to interact with the device by tapping, swiping, and pinching on the screen. Additionally, some mobile devices also support the use of electronic pens or styluses, which provide more precise input and can be used for tasks such as drawing or writing. Therefore, the statement that mobile devices often use touch and electronic pens for input is true.
33.
The ISBN
barcode is most commonly found on retail products, such as groceries.
Correct Answer
B. False
Explanation
The ISBN barcode is not commonly found on retail products, such as groceries. The ISBN barcode is primarily used for books and is a unique identifier for each book edition. Retail products typically use different types of barcodes, such as UPC or EAN codes, to track inventory and pricing information.
34.
A flat-panel
display takes up more room on a desktop than a CRT monitor.
Correct Answer
B. False
Explanation
A flat-panel display actually takes up less room on a desktop compared to a CRT monitor. This is because flat-panel displays are thinner and lighter, allowing for more desk space to be available. Additionally, flat-panel displays can be mounted on a wall or an adjustable arm, further saving space on the desktop.
35.
Laser
printers typically have higher-quality output than ink-jet printers.
Correct Answer
A. True
Explanation
Laser printers typically have higher-quality output than ink-jet printers because they use a laser beam to create a precise image on the drum, which is then transferred onto the paper. This process allows for sharper text and graphics, as well as more accurate color reproduction. Ink-jet printers, on the other hand, spray tiny droplets of ink onto the paper, which can result in less precise and less vibrant prints. Therefore, it is true that laser printers generally produce higher-quality output than ink-jet printers.
36.
The
speed of a printer is typically measured in _________.
Correct Answer
B. PPM
Explanation
The speed of a printer is typically measured in PPM (pages per minute). This measurement indicates how many pages the printer can print in one minute. DPI (dots per inch) is a measurement of print resolution, not speed. Pixels and MIDI are not measurements of printer speed or resolution.
37.
Which type of scanner would be most
appropriate for scanning a photo located in a bound book?
Correct Answer
C. Flatbed
Explanation
A flatbed scanner would be the most appropriate for scanning a photo located in a bound book. This type of scanner has a flat glass surface where the book can be placed, allowing the pages to lay flat and ensuring that the photo is scanned accurately. Sheetfed scanners are designed for loose sheets of paper, drum scanners are used for high-quality professional scanning, 3D scanners are used to capture three-dimensional objects, and barcode scanners are specifically designed for reading barcodes.
38.
A device
that can be used to capture electronic images of people, objects, and
locations.
Correct Answer
E. Digital camera
Explanation
A digital camera is a device that can capture electronic images of people, objects, and locations. Unlike barcode readers, OMR (optical mark recognition), OCR (optical character recognition), and OLED (organic light-emitting diode) devices, a digital camera is specifically designed for capturing images. It uses a sensor to convert light into electronic signals, which are then processed and stored as digital images. This makes it a versatile tool for photography and capturing visual information in various settings.
39.
A device
used to read data encoded into codes such as UPC or CODE 39.
Correct Answer
A. Barcode reader
Explanation
A barcode reader is a device that is specifically designed to read data encoded into codes such as UPC or CODE 39. It uses a light source and a photosensitive receiver to detect and interpret the patterns of the barcode, converting them into readable data. This allows for quick and accurate scanning and processing of information, making it an essential tool in various industries such as retail and logistics.
40.
A
type of flat-panel display.
Correct Answer
D. OLED
Explanation
OLED stands for Organic Light-Emitting Diode, which is a type of flat-panel display. Unlike traditional displays that require a backlight, OLED displays emit their own light when an electric current is applied. This allows for thinner and more flexible screens, as well as better color reproduction and contrast. OLED technology is commonly used in smartphones, televisions, and other electronic devices.
41.
Linux
is an example of an operating system.
Correct Answer
A. True
Explanation
Linux is indeed an example of an operating system. Linux is a free and open-source operating system that is based on the Unix operating system. It is widely used in various devices and systems, including servers, desktop computers, smartphones, and embedded systems. Linux provides users with a stable and secure platform for running applications and managing computer resources. Its open-source nature allows users to customize and modify the operating system according to their needs. Therefore, the statement "Linux is an example of an operating system" is true.
42.
With sequential
processing techniques, multiple tasks are performed at the exact same time.
Correct Answer
B. False
Explanation
The given statement is false. With sequential processing techniques, tasks are performed one after the other in a specific order, not at the exact same time. Sequential processing involves completing one task before moving on to the next.
43.
The most recent version of
Windows is Windows XP.
Correct Answer
B. False
Explanation
The most recent version of Windows is not Windows XP. Windows XP was released in 2001 and has since been succeeded by several newer versions, including Windows Vista, Windows 7, Windows 8, and Windows 10. Therefore, the statement is false.
44.
File
management programs can be used to copy files from one storage medium to
another.
Correct Answer
A. True
Explanation
File management programs are designed to organize, manipulate, and control files and folders on a computer system. One of the common tasks performed by these programs is copying files from one storage medium to another. This functionality allows users to easily transfer files between different devices or locations, such as copying files from a computer's hard drive to a USB flash drive. Therefore, the statement "File management programs can be used to copy files from one storage medium to another" is true.
45.
Antivirus
programs make files smaller so that they can be transmitted faster via the
Internet.
Correct Answer
B. False
Explanation
Antivirus programs do not make files smaller in order to transmit them faster via the internet. The primary function of antivirus programs is to protect computer systems from viruses and malware by detecting and removing them. They do not have any direct impact on the file size or transmission speed of files over the internet.
46.
Which
is not a common function of an
operating system?
Correct Answer
B. Compressing files
Explanation
The correct answer is "compressing files" because while booting the computer, managing resources, memory management, and security are all common functions of an operating system, compressing files is not typically considered a core function of an operating system. File compression is usually performed by specific software applications rather than the operating system itself.
47.
Which of
the following would be the most appropriate operating system for a netbook?
Correct Answer
A. Windows
Explanation
Windows would be the most appropriate operating system for a netbook because it is widely compatible with a variety of software and hardware, user-friendly, and has a large support community. Windows also offers a range of features and functionalities that are specifically designed for portable devices like netbooks, such as power management options and touch screen support. Additionally, Windows has a vast library of applications and programs available, making it suitable for both personal and professional use on a netbook.
48.
An operating system available for free
via the Internet.
Correct Answer
A. Linux
Explanation
Linux is an operating system that is available for free via the Internet. It is an open-source operating system, meaning that its source code is freely available to the public, allowing users to modify and distribute it. Linux has a large community of developers who contribute to its development and provide support. This availability and openness make Linux a popular choice for users who want a free and customizable operating system.
49.
A
type of utility program.
Correct Answer
E. Diagnostic program
Explanation
A diagnostic program is a type of utility program that is used to identify and troubleshoot issues with a computer system. It helps in diagnosing hardware and software problems, running tests, and providing detailed reports on system performance. This type of program is commonly used by technicians and system administrators to identify and fix problems in a computer or network.
50.
A
personal operating system.
Correct Answer
B. Mac OS
Explanation
Mac OS is the correct answer because it is a personal operating system. Linux is also an operating system, but it is not specifically designed for personal use. Multitasking is a feature that many operating systems have, but it does not refer to a specific operating system. iPhone OS is an outdated term and has been replaced by iOS, which is specifically designed for Apple's mobile devices. A diagnostic program is not an operating system, but rather a tool used to diagnose and troubleshoot issues with an operating system.