Question 1

PC Stands for—

Accepted Answer

Correct Option: Personal computer. PC is a widely recognized acronym in computing, universally standing for "Personal Computer." This term refers to a general-purpose computer whose size, capabilities, and original sale price make it useful for individuals, and which is intended to be operated directly by an end-user without the need for an intervening computer operator. Options (b) "Private computer" and (c) "Public computer" are not standard or recognized interpretations of the acronym PC in the field of computer science or technology. Option (d) is incorrect because only (a) is the correct interpretation, making the combination with (b) invalid. Option (e) is incorrect as (a) is definitively the correct answer.

Question 2

In motherboard information between components travels by

Accepted Answer

Correct Option: Bus. On a computer motherboard, information travels between various components, such as the CPU, RAM, and peripheral controllers, through a system of electrical pathways known as a "Bus." A bus is a communication system that facilitates the transfer of data, addresses, and control signals between different parts of a computer. Option (a) "Flash memory" is a type of non-volatile computer memory used for storage. Option (b) "CMOS" (Complementary Metal-Oxide-Semiconductor) refers to a small amount of memory on the motherboard that stores BIOS settings, not a data transfer pathway. Option (c) "Port" is an interface used to connect external peripheral devices to the computer, not for internal component communication. Therefore, (d) Bus is the correct answer as it is the fundamental mechanism for internal data transfer.

Question 3

Main circuit board of a computer is called

Accepted Answer

Correct Option: Mother board. The main circuit board of a computer, which integrates and connects all essential components like the CPU, memory, and expansion slots, is universally known as the "Motherboard." It acts as the central hub, providing electrical connections and communication pathways for the entire system. Option (a) "Father board" is not a recognized term in computer architecture. Option (c) "Keyboard" is an input device used for typing, not the main circuit board. Since (a) and (c) are incorrect, option (d) "All of these" is also incorrect. Option (e) is incorrect as (b) is the accurate and widely accepted term for the main circuit board.

Question 4

Which part of a computer helps to store information?

Accepted Answer

Correct Option: Disk drive. A "Disk drive" (such as a Hard Disk Drive or Solid State Drive) is the primary component in a computer responsible for persistent storage of digital information, including the operating system, applications, and user data. Option (b) "Keyboard" is an input device used to enter text and commands. Option (c) "Monitor" is an output device that displays visual information. Option (d) "Printer" is an output device that produces hard copies of digital documents. None of these other options are designed for storing information. Therefore, (a) Disk drive is the correct answer as its fundamental function is data storage.

Question 5

Meaning of IBM is —

Accepted Answer

Correct Option: International business machine. IBM is a globally renowned multinational technology and consulting company. The acronym IBM stands for "International Business Machines Corporation." Therefore, option (b) "International business machine" accurately represents the full form and meaning of IBM. Option (a) "Indian business machine," (c) "International banking machine," and (d) "International business model" are incorrect interpretations of the acronym and do not correspond to the company's official name or primary business. Option (e) is incorrect as (b) is indeed the correct meaning.

Question 6

Accessories connect the system unit with

Accepted Answer

Correct Option: Port. Accessories, also known as peripheral devices (e.g., mouse, keyboard, printer, external hard drive), connect to the computer's system unit through "Ports." A port is a physical interface on the computer that allows data to be exchanged with external devices. Option (b) "Ring" refers to a network topology where devices are connected in a circular fashion, not a physical connection point for accessories. Option (c) "Bus" refers to internal communication pathways within the computer, not external connection points. Option (d) "Zip" could refer to a file compression format or an older type of removable storage drive, neither of which is a general connection point for accessories. Thus, (a) Port is the correct answer.

Question 7

What is the short form for 'uninterrupted power supply' in computer?

Accepted Answer

Correct Option: UPS. The short form for 'Uninterrupted Power Supply' is universally recognized as "UPS." A UPS is a device that provides emergency power to a load when the input power source, typically mains power, fails. It offers protection from power surges and outages. Option (a) "Inverter" converts DC power to AC power. Option (b) "Generator" produces electrical power, usually from mechanical energy. Option (d) "Stabilizer" regulates voltage to protect electronic devices from voltage fluctuations. None of these other options accurately represent 'Uninterrupted Power Supply'. Therefore, (c) UPS is the correct and specific acronym.

Question 8

Which of the following parts has direct connection from a computer motherboard?

Accepted Answer

Correct Option: Microprocessor. The "Microprocessor" (also known as the CPU or Central Processing Unit) has the most direct connection to the motherboard, typically sitting in a dedicated socket (e.g., LGA or PGA) on the board itself. It is the brain of the computer and requires high-speed, direct communication with other motherboard components. A "Hard disk" (a) connects via an interface like SATA or IDE, which are ports on the motherboard, but the drive itself is a separate component. A "VDU" (Visual Display Unit or monitor) (b) connects via a video port (e.g., HDMI, DisplayPort), which is an output interface. A "Modem" (d) connects via a network port (Ethernet) or a USB port, or historically, an expansion slot. Therefore, the microprocessor has the most direct and integral connection to the motherboard.

Question 9

To run a CD in a computer we need

Accepted Answer

Correct Option: CD drive. To read or "run" a Compact Disc (CD) in a computer, the essential component required is a "CD drive." This optical drive is specifically designed with a laser and mechanism to read data encoded on CDs. Option (a) "FD drive" refers to a Floppy Disk Drive, which reads floppy disks. Option (c) "Zip drive" is an older type of removable magnetic disk storage. Option (d) "Pen drive" (or USB flash drive) is a solid-state storage device that connects via a USB port. None of these other drives are capable of reading CDs. Therefore, (b) CD drive is the only correct answer for running a CD.

Question 10

Information from one unit to another unit is carried by

Accepted Answer

Correct Option: Data bus. In a computer system, the transfer of information between different units (e.g., CPU, memory, I/O devices) is primarily handled by various types of buses. The "Data bus" is specifically responsible for carrying the actual data (the content of the information) between these components. While the "Address bus" (d) carries memory or I/O port addresses (indicating where the data is located), and the "Control bus" (c) carries control signals (indicating what operation to perform), the term "information" in a general context, especially when referring to the payload, most directly points to the data carried by the data bus. "System" (b) is too broad and not a specific carrier. Therefore, the Data bus is the most direct answer for carrying the core information content.

Question 11

Where is the disc put in a computer?

Accepted Answer

Correct Option: In the disk drive. A disc, such as a CD, DVD, or Blu-ray, is physically inserted into a disk drive (also known as an optical drive) within a computer system for the purpose of reading or writing data. Option (a) 'In a modem' is incorrect because a modem is a networking device used for internet connectivity, not for disc insertion. Option (b) 'In the hard drive' is incorrect as a hard drive is an internal, sealed storage unit for persistent data, and discs are not inserted into it. Option (c) 'Into the CPU' is fundamentally incorrect; the CPU (Central Processing Unit) is the computer's 'brain' and processes instructions, it has no mechanism for disc insertion. Therefore, the correct location for inserting a disc is into a disk drive, making option (d) the accurate choice. Option (e) 'None of these' is incorrect as a correct option has been identified.

Question 12

The............ is a box that houses the most important parts of a computer system.

Accepted Answer

Correct Option: system unit. The system unit, often referred to as the computer case or chassis, is the physical enclosure that houses the primary internal components of a computer system. These components include the motherboard, CPU, RAM, power supply, and internal storage devices. Option (a) 'software' refers to programs and operating systems, which are intangible and not a physical box. Option (b) 'hardware' is a general term for all physical components, but it doesn't specifically refer to the 'box' itself. The system unit is a specific type of hardware. Option (c) 'input drive' is not a standard term for the main housing; input devices are peripherals like keyboards or mice. Therefore, the 'system unit' (d) accurately describes the box housing the computer's essential parts. Option (e) 'none of these' is incorrect as (d) is the correct answer.

Question 13

The main system board of a computer is called the—

Accepted Answer

Correct Option: mother board. The main system board of a computer is known as the motherboard. It is the central printed circuit board (PCB) that connects and allows communication between all crucial electronic components of the system. These components include the Central Processing Unit (CPU), memory (RAM), and various expansion cards. Option (a) 'integrated circuit' (IC) is a tiny electronic circuit, a component found on the motherboard, but not the motherboard itself. Option (c) 'processor' (CPU) is the 'brain' of the computer, a single component that is plugged into the motherboard, not the board itself. Option (d) 'microchip' is another term for an integrated circuit, similar to option (a). Thus, 'mother board' (b) is the correct term for the main system board. Option (e) 'None of these' is incorrect as (b) is the accurate term.

Question 14

Which of the following is a part of the system unit ?

Accepted Answer

Correct Option: CPU. The system unit is the main enclosure of a computer that houses its core components. The Central Processing Unit (CPU) is undeniably a fundamental and essential component located inside the system unit, mounted on the motherboard. Option (b) 'Monitor' is an output device that typically sits outside the system unit. Option (c) 'CD-ROM' refers to the optical disc media; if it implies a CD-ROM drive, then the drive is typically housed inside the system unit. However, the CPU is a more fundamental and universally present component of the system unit's core functionality. Option (d) 'Floppy disk' refers to a removable storage medium, not a component of the system unit itself. Given the options, the CPU (a) is the most accurate and universally recognized core part of the system unit. Option (e) 'None of these' is incorrect as (a) is correct.

Question 15

The box that contains the central electronic components of the computer is the ...................

Accepted Answer

Correct Option: system unit. The 'box' that contains the central electronic components of the computer refers to the physical enclosure that houses all the internal hardware. This enclosure is known as the system unit. It contains the motherboard, CPU, RAM, power supply, and other internal drives. Option (a) 'motherboard' is a circuit board inside the system unit where many components are mounted, but it is not the 'box' itself. Option (c) 'peripheral' refers to external devices connected to the computer, not the main housing. Option (d) 'input device' refers to components like keyboards or mice, which are also external or connect to the system unit. Therefore, the 'system unit' (b) is the correct term for the physical box containing these central components. Option (e) 'none of these' is incorrect as (b) is the accurate answer.

Question 16

Storage device found inside the computer—

Accepted Answer

Correct Option: Hard Disk. A hard disk (specifically, a Hard Disk Drive or HDD) is a primary non-volatile storage device commonly found inside a computer, used for storing the operating system, applications, and user data. Option (a) 'CD ROM' refers to the optical disc media itself; while a CD-ROM drive is an internal storage device, the option names the media. Option (b) 'Zip Disk' and (c) 'Super Disk' refer to specific types of removable magnetic storage media and their corresponding drives, which are largely obsolete and refer to the media, not the device. 'Hard Disk' (d) unambiguously refers to a major internal storage device. Therefore, 'Hard Disk' is the most appropriate answer as an internal storage device. Option (e) 'None of these' is incorrect because (d) is correct.

Question 17

A device that provides emergency power to your computer, conditions the voltage and protects against powers surges is called a ...................

Accepted Answer

Correct Option: UPS = Uninterruptible Power Supply. The device described, which provides emergency power during outages, conditions voltage, and protects against power surges, is an Uninterruptible Power Supply (UPS). Option (a) 'PSU = Power supply unit' converts AC power to DC for the computer but does not provide battery backup or comprehensive surge protection. Option (b) 'USP = Universal Surge Protector' is not a standard acronym for a device with emergency power capabilities; a surge protector primarily handles voltage spikes. Option (c) 'UPPS = Universal Power Protection and Supply' is not a recognized standard acronym. Option (d) 'UPS = Uninterruptible Power Supply' perfectly matches all the functions mentioned: emergency power, voltage conditioning, and surge protection. Option (e) 'None of these' is incorrect as (d) is the correct and complete description.

Question 18

A UPS.............

Accepted Answer

Correct Option: provides battery backup for a limited time. An Uninterruptible Power Supply (UPS) primarily serves to provide temporary battery power to connected equipment when the main power source fails. This allows users to save their work and shut down the computer gracefully, or to continue operations for a limited duration. While a UPS also offers power conditioning and surge protection (related to option a), its most distinguishing and fundamental function is the battery backup. Option (c) 'delivers electronic messages via a bus' describes the function of a data bus within a computer. Option (d) 'conducts a power-on self test or POST' is a function performed by the computer's BIOS/UEFI firmware during startup. Therefore, 'provides battery backup for a limited time' (b) is the most accurate and defining characteristic of a UPS. Option (e) 'none of these' is incorrect as (b) is correct.

Question 19

A disk on which you store information—

Accepted Answer

Correct Option: Data disc. A 'data disc' is a general and widely accepted term for any optical disc (such as a CD, DVD, or Blu-ray) that is used to store digital information, including files, software, or multimedia content. Option (a) 'Plate' refers to the internal platters within a hard drive where data is magnetically stored, not the external disc media that a user would typically interact with for storage. Options (c) 'Paper disk' and (d) 'TV disk' are not recognized or standard terms for computer storage media. Therefore, 'Data disc' (b) is the most appropriate and accurate term for a disc used to store information. Option (e) 'None of these' is incorrect as (b) is the correct answer.

Question 20

A computer's hard disk is ...................

Accepted Answer

Correct Option: computer hardware. A hard disk is a physical, tangible component of a computer system used for persistent data storage. As such, it falls under the category of computer hardware. Option (a) 'an arithmetic and logical unit' (ALU) is a specific component within the CPU responsible for performing arithmetic and logical operations, not a hard disk. Option (b) 'computer software' refers to programs and data that are intangible instructions for the computer, not a physical device. Option (c) 'operating system' is a type of software that manages computer resources and is stored on the hard disk, but it is not the hard disk itself. Therefore, 'computer hardware' (d) is the correct classification for a hard disk. Option (e) 'none of these' is incorrect as (d) is the accurate classification.

Question 21

A... is a device that not only provides surge protection, but also furnishes your computer with battery backup power during a power outage.

Accepted Answer

Correct Option: UPS. The correct option is (C) UPS. An Uninterruptible Power Supply (UPS) is a crucial device that serves two primary functions: it provides surge protection, safeguarding electronic equipment from damaging voltage spikes, and it offers temporary battery backup power. This battery backup is essential during power outages, allowing a computer to continue running for a short period, enabling users to save their work and perform a proper shutdown. Option (A) a surge strip only provides surge protection and does not offer battery backup. Option (B) USB (Universal Serial Bus) is a standard for connecting peripheral devices and transferring data, not for power backup or surge protection. Option (D) battery strip is not a standard computing term; while it might imply a power strip with a battery, the precise and correct term for the described functionality is UPS.

Question 22

The motherboard is the ...

Accepted Answer

Correct Option: circuit board that contains a CPU and other chips. The correct option is (D) circuit board that contains a CPU and other chips. The motherboard is the main printed circuit board (PCB) in a computer. It acts as the central communication backbone, connecting all of the computer's essential components, including the Central Processing Unit (CPU), memory (RAM), storage devices, and expansion cards. It provides the electrical connections and physical support for these components. Option (A) is partially correct as it provides connections for peripheral devices, but its primary definition is broader. Option (B) is incorrect; the CPU chip is a single component that resides on the motherboard, not synonymous with it. Option (C) refers to the BIOS (Basic Input/Output System) chip, which is accessed first during boot-up, but the motherboard itself is not 'the first chip'.

Question 23

Where is the disk put in a computer?

Accepted Answer

Correct Option: in the disk drive. The correct option is (D) in the disk drive. When referring to inserting a 'disk' into a computer, it typically means a removable storage medium such as a floppy disk, a CD, or a DVD. These types of disks are physically inserted into a dedicated hardware component called a 'disk drive' (e.g., a floppy disk drive, CD-ROM drive, or DVD drive) which reads data from or writes data to the disk. Option (A) in the modem is incorrect; a modem is a device for network communication. Option (B) in the hard drive is incorrect; a hard drive is an internal, non-removable storage device, and you do not 'put' a disk into it in the sense of insertion. Option (C) into the CPU is incorrect; the CPU (Central Processing Unit) is the processing unit of the computer and does not accept disks.

Question 24

The ....... controls communications for the entire computer system.

Accepted Answer

Correct Option: motherboard. The correct option is (C) motherboard. The motherboard is the primary circuit board that serves as the central hub for all communications within a computer system. It provides the physical connections and pathways (buses) that allow the CPU, memory, storage devices, expansion cards, and peripheral devices to exchange data and signals. Without the motherboard, the various components of a computer cannot communicate with each other. Option (A) the arithmetic-logic unit (ALU) is a part of the CPU responsible for performing arithmetic and logical operations, not overall system communication. Option (B) a semiconductor is a material with electrical conductivity between a conductor and an insulator, not a system component controlling communication. Option (D) a coprocessor is a specialized processor that assists the main CPU with specific tasks, but it does not control overall system communication.

Question 25

The system component that controls and manipulates data in order to produce information is called the .......

Accepted Answer

Correct Option: microprocessor. The correct option is (B) microprocessor. The microprocessor, often referred to as the Central Processing Unit (CPU), is the 'brain' of the computer. It is responsible for executing instructions, performing calculations, and manipulating raw data into meaningful information. It fetches, decodes, executes, and writes back data, thus controlling the flow and transformation of information within the system. Option (A) keyboard and (D) mouse are input devices used to enter data into the computer. Option (C) monitor is an output device used to display information to the user. These devices facilitate interaction with the computer but do not perform the core data manipulation and control functions like a microprocessor.

Question 26

These provide expansion capability for a computer system

Accepted Answer

Correct Option: slots. The correct option is (B) slots. Expansion slots, such as PCI, PCIe (Peripheral Component Interconnect Express), or AGP (Accelerated Graphics Port) slots, are physical connectors on the motherboard that allow users to add expansion cards. These cards, like graphics cards, sound cards, network cards, or storage controllers, enhance the computer's functionality and provide additional capabilities. Option (A) sockets are typically used for the CPU or RAM modules, allowing for component installation or upgrades, but 'slots' more specifically refers to adding expansion cards. Option (C) bytes are units of digital information, not physical components. Option (D) bays are physical enclosures within the computer case designed to hold storage drives (e.g., hard drives, SSDs, optical drives), not for adding functional expansion cards.

Question 27

An example of a processing device would be .......

Accepted Answer

Correct Option: a tablet PC. The correct option is (B) a tablet PC. A processing device is any device that performs operations on data. While the CPU is the primary processing unit, a tablet PC is a complete computing system that inherently contains a CPU and performs extensive data processing as its core function. Among the given options, it is the only one that represents a device whose primary purpose is to process information. Option (A) a magnetic ink reader, (D) scanners, and (E) keyboards are all input devices; their primary function is to capture or enter data, not to process it. Option (C) Special function cards (e.g., graphics cards, sound cards) contain processing units (like GPUs or DSPs) and perform specialized processing, but the card itself is an expansion component within a larger system. A tablet PC, as a standalone computer, is a direct example of a device that processes data.

Question 28

A ....... is hardware used to read disks.

Accepted Answer

Correct Option: disk drive. The correct option is (D) disk drive. A disk drive is a hardware component designed to read data from and, in many cases, write data to various types of storage disks. Examples include floppy disk drives, CD-ROM drives, DVD drives, and Blu-ray drives. These drives contain the mechanisms necessary to spin the disk and use lasers or magnetic heads to access the stored information. Option (A) a floppy disk is the storage medium itself, not the device that reads it. Options (B) hardware and (C) software are too general; hardware refers to all physical components, and software refers to programs. Option (E) CPU (Central Processing Unit) is the main processor of the computer; it processes data but does not directly read disks; it relies on the disk drive to provide the data.

Question 29

The ...... is the box that houses the most important parts of a computer system.

Accepted Answer

Correct Option: system unit. The correct option is (D) system unit. The system unit, often referred to as the computer case or chassis, is the enclosure that contains the primary internal components of a computer. These essential parts include the motherboard, Central Processing Unit (CPU), Random Access Memory (RAM), power supply, and various storage devices like hard drives and solid-state drives. It protects these components and provides structural support. Option (A) software refers to programs and operating systems, not a physical box. Option (B) hardware is a general term for all physical components of a computer, not specifically the housing. Option (C) an input device (e.g., keyboard, mouse) is a peripheral used to provide data to the computer, not the main housing for internal components.

Question 30

........ hard drives are permanently located inside the system unit and are not designed to be removed, unless they need to be repaired or replaced.

Accepted Answer

Correct Option: Internal. The correct option is (B) Internal. Internal hard drives are storage devices that are installed inside the computer's system unit (case). They are connected directly to the motherboard via data cables (like SATA) and power cables from the power supply. They are considered a permanent part of the computer's core configuration and are not designed for frequent removal or hot-swapping by the end-user, typically only being accessed for repair, replacement, or upgrades. Option (A) Static refers to non-moving components or a type of memory (SRAM), not a hard drive location. Option (C) External hard drives are designed for portability and easy connection/disconnection outside the system unit. Option (D) Remove is a verb, not a type of hard drive.

Question 31

What resides on the motherboard and connects the CPU to other components on the motherboard?

Accepted Answer

Correct Option: System bus. The correct option is (B) System bus. A system bus is a set of electrical pathways or conductors on the motherboard that facilitates communication between the Central Processing Unit (CPU) and other essential components. These components include Random Access Memory (RAM), graphics cards, storage controllers, and various input/output (I/O) devices. The bus acts as a shared communication channel, allowing data, addresses, and control signals to be transmitted efficiently across the system. Option (A) Input unit is a general term for input devices, not a specific component on the motherboard connecting the CPU. Option (C) ALU (Arithmetic Logic Unit) is a sub-component within the CPU, responsible for calculations, not for connecting the CPU to other components. Option (D) Primary memory (RAM) resides on the motherboard and communicates with the CPU via the system bus, but it is not the connector itself.

Question 32

An electronic path, that connect one part of computer to another is—

Accepted Answer

Correct Option: (d) Bus. The question asks for an electronic path that connects different parts of a computer. A 'Bus' in computer architecture refers to a communication system that transfers data between components inside a computer, or between computers. It acts as a shared pathway for data, address, and control signals, enabling various hardware components to communicate. Option (a) 'Logic gate' is a fundamental building block of digital circuits, performing basic logical operations (e.g., AND, OR, NOT), not a general connection path between major computer components. Option (b) 'Serial Port' is an interface for serial communication with external devices (like older printers or modems), not the internal communication backbone for all components. Option (c) 'Modem' (Modulator-Demodulator) is a device that enables a computer to transmit data over telephone or cable lines, primarily for network connectivity to the outside world, not for internal component communication. Therefore, 'Bus' is the correct term for the internal electronic path connecting various computer parts.

Question 33

What is the full form of USB in computer terminology?

Accepted Answer

Correct Option: (c) Universal Serial Bus. The acronym USB stands for 'Universal Serial Bus'. This is a widely adopted industry standard that defines the cables, connectors, and communication protocols used for connection, communication, and power supply between computers and electronic devices. The 'Universal' aspect highlights its broad applicability across various device types, and 'Serial Bus' refers to its method of data transmission, where data bits are sent sequentially over a single line. Option (a) 'User System Board', (b) 'Unique Static Base', and (d) 'Unique Systematic Bus' are all incorrect and do not correspond to any recognized computer terminology or standard. The 'Universal Serial Bus' standard revolutionized peripheral connectivity by providing a single, standardized interface for a vast array of devices, from keyboards and mice to printers and external storage.

Question 34

Which of the following is NOT a part of a personal computer?

Accepted Answer

Correct Option: (c) USB. This question asks to identify which item is NOT a fundamental part of a personal computer's core functional architecture. Option (a) 'ROM' (Read-Only Memory) is essential internal memory that stores firmware like the BIOS, critical for booting the computer. Option (b) 'CPU' (Central Processing Unit) is the 'brain' of the computer, performing all processing tasks and executing instructions. Option (d) 'RAM' (Random Access Memory) is the primary volatile memory used for active data and program instructions, crucial for the computer's operational speed. These three (ROM, CPU, RAM) are core internal components required for the computer's basic operation and computation. Option (c) 'USB' (Universal Serial Bus) refers to an interface standard and its associated ports and controllers. While USB ports and controllers are physically present on a modern PC's motherboard, 'USB' itself is primarily an input/output interface for connecting external peripherals (e.g., flash drives, keyboards, mice), rather than a core internal processing or memory unit like ROM, CPU, and RAM. In the context of fundamental internal functional components, USB stands out as an interface standard for external connectivity.

Question 35

Mac is a type of personal computer made by—

Accepted Answer

Correct Option: (a) Apple. Macintosh, commonly shortened to Mac, is a series of personal computers designed, developed, and marketed by Apple Inc. since 1984. The Mac line includes various models such as desktop computers (e.g., iMac, Mac mini, Mac Studio) and laptop computers (e.g., MacBook Air, MacBook Pro). These computers are known for running Apple's macOS operating system. Option (b) 'Dell', (c) 'Acer', and (d) 'HP' (Hewlett-Packard) are other prominent manufacturers of personal computers, but they primarily produce Windows-based PCs or Chromebooks, not Mac computers. Therefore, Apple is the sole manufacturer of Mac personal computers.

Question 36

A modem is connected to a—

Accepted Answer

Correct Option: (c) Phone line. A modem (modulator-demodulator) is a device that converts digital signals from a computer into analog signals suitable for transmission over analog lines, such as telephone lines, and converts incoming analog signals back into digital data. Its primary function is to enable data communication over a network medium that is not natively digital. Therefore, a modem is typically connected to a 'Phone line' (for DSL or dial-up modems) or a cable line (for cable modems) to facilitate internet access. Option (a) 'Mouse' is an input device for user interaction. Option (b) 'Monitor' is an output display device. Option (d) 'Motherboard' is the main circuit board inside a computer that connects all internal components. While an internal modem might connect to the motherboard via a PCI/PCIe slot or a USB port, its external connection for data transmission to the internet service provider is to a communication line like a phone line.

Question 37

Four words have been given, out of which three are alike in some manner and one is different. Select the odd one. Hard disk, RAM, Mouse, Motherboard.

Accepted Answer

Correct Option: (d) Mouse. This question asks to identify the odd one out from the given list of computer components based on their classification. Option (a) 'Hard disk' is an internal storage device used for long-term data retention. Option (b) 'Motherboard' is the main circuit board that houses and connects all other internal components, acting as the central nervous system of the computer. Option (c) 'RAM' (Random Access Memory) is an internal volatile memory module used for temporary storage of data that the CPU is actively using. All three, Hard disk, Motherboard, and RAM, are internal components crucial for the computer's operation and are typically found inside the computer case. Option (d) 'Mouse' is an external peripheral input device used for interacting with the computer's graphical user interface. Therefore, the 'Mouse' is the odd one out as it is an external peripheral, while the others are internal core components of the computer system.

Question 38

Firewall is used in PC for—

Accepted Answer

Correct Option: (a) Security. A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. Its primary and most direct purpose is to establish a barrier between a trusted internal network (like your PC) and untrusted external networks (like the internet) to prevent unauthorized access, block malicious data packets, and protect against various cyber threats. Therefore, 'Security' is the most accurate and encompassing function of a firewall. Option (b) 'Authentication' is the process of verifying a user's identity, which is a separate security mechanism, though firewalls can be part of a larger security architecture that includes authentication. Option (c) 'Data transmission' is the process of sending and receiving data; firewalls regulate and control data transmission for security purposes, but they are not primarily for the act of transmission itself. While a firewall contributes to overall system protection, its core role is specifically network security, making (a) the best answer.

Comp Chap 5

38 Questions Available

Comp Chap 5

38 Questions Available

Question 1: PC Stands for—

Question 2: In motherboard information between components travels by

Question 3: Main circuit board of a computer is called

Question 4: Which part of a computer helps to store information?

Question 5: Meaning of IBM is —

Question 6: Accessories connect the system unit with

Question 7: What is the short form for 'uninterrupted power supply' in computer?

Question 8: Which of the following parts has direct connection from a computer motherboard?

Question 9: To run a CD in a computer we need

Question 10: Information from one unit to another unit is carried by

Question 11: Where is the disc put in a computer?

Question 12: The............ is a box that houses the most important parts of a computer system.

Question 13: The main system board of a computer is called the—

Question 14: Which of the following is a part of the system unit ?

Question 15: The box that contains the central electronic components of the computer is the ...................

Question 16: Storage device found inside the computer—

Question 17: A device that provides emergency power to your computer, conditions the voltage and protects against powers surges is called a ...................

Question 18: A UPS.............

Question 19: A disk on which you store information—

Question 20: A computer's hard disk is ...................

Question 21: A... is a device that not only provides surge protection, but also furnishes your computer with battery backup power during a power outage.

Question 22: The motherboard is the ...

Question 23: Where is the disk put in a computer?

Question 24: The ....... controls communications for the entire computer system.

Question 25: The system component that controls and manipulates data in order to produce information is called the .......

Question 26: These provide expansion capability for a computer system

Question 27: An example of a processing device would be .......

Question 28: A ....... is hardware used to read disks.

Question 29: The ...... is the box that houses the most important parts of a computer system.

Question 30: ........ hard drives are permanently located inside the system unit and are not designed to be removed, unless they need to be repaired or replaced.

Question 31: What resides on the motherboard and connects the CPU to other components on the motherboard?

Question 32: An electronic path, that connect one part of computer to another is—

Question 33: What is the full form of USB in computer terminology?

Question 34: Which of the following is NOT a part of a personal computer?

Question 35: Mac is a type of personal computer made by—

Question 36: A modem is connected to a—

Question 37: Four words have been given, out of which three are alike in some manner and one is different. Select the odd one. Hard disk, RAM, Mouse, Motherboard.

Question 38: Firewall is used in PC for—