Important MCQ-Based Questions on Informatics Practices (IP) class 11 chapter-Hardware Concepts
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Find below Important MCQ-Based Questions on Informatics Practices (IP) class 11 chapter-Hardware Concepts
Important Questions for Informatics Practices (IP) class 11 chapter-Hardware Concepts set-1
Informatics Practices - MCQ on Hardware Concepts
Class XI
Q.1 Data is a collection of
a) facts and entities relevant to the user.
b) raw material.
c) numbers and alphabets.
d) input material for a computer.
Answer:
(a)
Explanation: Data is a collection of raw facts and figures, which the user needs.
Q.2 The unit, which takes the input and converts it into binary form, is
a) memory.
b) output unit.
c) input unit.
d) CPU.
Answer:
(c)
Explanation: The input devices attached to the computer form input unit. Examples: keyboard, CPU, mouse, camera, etc.
Q.3 Software cannot be classified into
a) operating system.
b) language processor.
c) application software.
d) storage devices.
Answer:
(d)
Explanation: Storage devices are primary hardware component. These devices are used to store the data into the system.
Q.4 A program, which acts as an interface between user and hardware, is
a) interactive system.
b) general application system.
c) customized application system.
d) operating system.
Answer:
(d)
Explanation: The primary goal of operating system is to make the computer system convenient to use and secondary goal is to use computer hardware in an efficient manner.
Q.5 The language processor, which converts the program written in an assembly language into machine language, is
a) compiler.
b) assembler.
c) interpreter.
d) multiprocessor.
Answer:
(b)
Explanation: Assembler is used because the computer does not understand any language, other than its own machine language.
Q.5 The language processor, which converts a HLL program into machine language executing it line by line, is
a) interpreter.
b) assembler.
c) compiler.
d) debugger.
Answer:
(a)
Explanation: If, there is any error in any line, then interpreter reports it at the same time and program execution cannot resume until the error is rectified.
Q.7 Punched card was invented by
a) Charles Babbage.
b) Bardeen.
c) Brattain.
d) Shockley.
Answer:
(a)
Explanation: Charles Babbage invented Punched card. Bardeen, Brattain and Shockley invented transistor in 1946.
Q.8 BIOS (Basic Input Output Instructions Services) is an example of
a) firmware.
b) hardware.
c) software.
d) liveware.
Answer:
(a)
Explanation: Firmware is prewritten program, permanently stored in read-only memory, which configures the computer and is not easily modifiable.
Q.9 Nibble is a group of
a) 4 bits.
b) 8 bits.
c) 16 bits.
d) 64 bits.
Answer:
(a)
Explanation: Nibble is an order of 22 bits i.e. 4 bits.
Q.10 A device, which can store a symbol selected from a set of symbols is known as
a) integrated circuit.
b) arithmetic logical unit.
c) data processor.
d) memory cell.
Answer:
(d)
Explanation: The memory of a computer can be thought of as cells. Each of these cells is further broken into smaller parts known as bits. A number of bits together are used to store data instructions, by combination of 0 and 1.
Q.11 The central processing unit
a) is operated from the control panel.
b) is controlled by the input data, entering the system.
c) controls the storage unit.
d) controls all input, output and processing.
Answer:
(d)
Explanation: CPU carries out the given process and supervises the entire system.
Q.12 First generation computers used
a) vacuum tubes.
b) transistor.
c) magnetic tapes.
d) magnetic disks.
Answer:
(a)
Explanation: First generation computer used thermo ionic valves (vacuum tubes) and machine languages were used for giving instructions.
Q.13 Fourth generation computers used
a) VLSI circuits.
b) transistor.
c) vacuum tubes.
d) integrated circuit.
Answer:
(a)
Explanation: VLSI circuits pack about 50,000 transistors in a chip, which makes the computer smaller and faster.
Q.14 Artificial intelligence is the feature of
a) second generation computers.
b) third generation computers.
c) fourth generation computers.
d) fifth generation computers.
Answer:
(d)
Explanation: The goal of fifth generation computers is to develop devices, which respond to natural language input and are capable of learning and self-organization.
Q.15 ‘Father of Modern Computers’ is
a) Herman Hollerith.
b) Howard Aiken.
c) John Von Neumann.
d) Charles Babbage.
Answer:
(d)
Explanation: Charles Babbage’s great inventions of difference engine and analytical engine earned him the title of ‘Father of Modern Computers’ a fitting tribute to him.
Q.15 ANURAG is an example of
a) Mini-computer.
b) Macro-computer.
c) Super-computer.
d) Mainframe computer.
Answer:
(c)
Explanation: Super computers are the most powerful computers among digital computer. ANURAG is one of them.
Q.17 The name pioneer computer is given to
a) CPU.
b) supercomputers.
c) analytical engine.
d) digital computers.
Answer:
(c)
Explanation: Analytical engine is so called because, it was the first design to introduce the basic architecture of modern computers.
Q.18 The computers, which deal with physical quantities, are
a) analog computers.
b) hybrid computers.
c) digital computers.
d) mini- computers.
Answer:
(a)
Explanation: In analog computers, computation is carried out with the physical quantities, such as, voltage, length, current, temperature, etc. They operate by measuring rather than counting.
Q.19 The unit, which provides information from outside to the machine, is
a) input.
b) output.
c) control.
d) main memory.
Answer:
(a)
Explanation: The input unit provides information from outside into the computer system.
Q.20 The computers, which are also known as notebooks, are
a) Special-purpose computers.
b) General-purpose computers.
c) PDAs.
d) Laptop computers.
Answer:
(d)
Explanation: Laptop computers are so called, because they can be carried in briefcases.
Important Questions for Informatics Practices (IP) class 11 chapter-Hardware Concepts set-2
Q.21 The organization, which looks at the standards of data on the Internet, is
a) ISOC.
b) W3C.
c) IEEE.
d) IETE.
Answer:
(a)
Explanation: Internet society set the rules and standards for accessing the data on the Internet.
Q.22 The unit used to count the speed of a printer is
a) CPM.
b) DPI.
c) PPM.
d) BIT.
Answer:
(d)
Explanation: A bit is a binary unit taking values 0 and 1. Apart from this, it is also used as a unit of measurement, the information capacity of one binary digit.
Q.23 SCSI is a term related with
a) storage.
b) network data transfer.
c) keystroke rate.
d) picture resolution.
Answer:
(a)
Explanation: SCSI is a set of standards for physically connecting and transferring data between computer and peripheral devices. It is used in hard disks, tape drives, scanners and CD drives.
Q.24 Letters and numbers come under
a) punctuation keys.
b) numeric keys.
c) alphanumeric keys.
d) symbolic keys.
Answer:
(c)
Explanation: Alphanumeric keys include all the letters from a-z and numbers from 0-9.
Q.25 The best printer among the following is
a) laser printer.
b) dot-matrix printer.
c) electromagnetic printer.
d) thermal printer.
Answer:
(a)
Explanation: Laser printers produce very high quality output and are very fast.
Q.25 Chips responsible for storing permanent data and instructions are
a) RAM chips.
b) SRAM chips.
c) DRAM chips.
d) ROM chips.
Answer:
(d)
Explanation: ROM is non-volatile in nature. Hence, the contents are not lost even during power failure.
Q.27 The device having a limitation that, information can only be added to it but cannot be erased or modified is
a) floppy disk.
b) hard disk.
c) CDROM.
d) tape drive.
Answer:
(c)
Explanation: CDROM is used to store information and cannot be used to modify it.
Q.28 Primary memory stores
a) data.
b) programs.
c) results.
d) programs, to obtain results after processing on data.
Answer:
(d)
Explanation: A primary memory is the main memory in which, we can store data, programs, as well as results.
Q.29 The physical components of a computer system are called
a) software.
b) hardware.
c) application.
d) operating systems.
Answer:
(b)
Explanation: The physical components of a computer system are called hardware, which includes CPU, monitors, mouse, etc.
Q.30 The appropriate software required for running the input/output devices are called as
a) disks.
b) application software.
c) disk drives.
d) hard disks.
Answer:
(c)
Explanation: A disk drive is a peripheral device used to record and retrieve information. Main implementations are hard disks, floppy disks and optical discs.
Q.31 The data accepted by the output unit from processing unit is in
a) decimal form.
b) binary form.
c) octal form.
d) hexadecimal form.
Answer:
(b)
Explanation: The processing unit of computer changes the data to binary form, which is then sent to the output device.
Q.32 The screen of a cathode ray tube is coated with
a) phosphor.
b) phosphorous.
c) zinc oxide.
d) zinc sulphide
e).
Answer:
(a)
Explanation: The screen is coated with phosphor to make it glow.
Q.33 Optical Character Recognition is an
a) input device.
b) output device.
c) storage device.
d) memory device.
Answer:
(a)
Explanation: An optical character recognition is used for reading marks made on the face of a preprinted card that utilizes a video camera and a memory device to capture and stores an image of at least a portion of the card.
Q.34 The memory typically used in calculators is
a) ROM.
b) RAM.
c) DRAM.
d) SDRAM.
Answer:
(a)
Explanation: ROM is used because it is non-volatile.
Q.35 Characteristic of volatile memory is that,
a) it loses its contents at high ambient temperature.
b) its contents are lost on failure of power.
c) it is to be kept in airtight boxes.
d) it is the latest type of bubble memory.
Answer:
(b)
Explanation: Volatile memory is power dependent.
Q.36 The device similar in functioning to a DVD except, it has 5.2 GB of memory is
a) CD-R.
b) floppy disk.
c) CD-RW.
d) hard disk.
Answer:
(c)
Explanation: A DVD is same as CD-RW. Both are used to write data and store information. The only difference is of the storage capacity.
Q.37 The components that process data are located in the
a) input devices.
b) output devices.
c) system unit.
d) storage component.
Answer:
(c)
Explanation: The system unit contains ALU and CU for processing the data.
Q.38 Data can be erased or modified in
a) CD-R.
b) CD-ROM.
c) CD-RW.
d) floppy disk.
Answer:
(c)
Explanation: CD-RW is erasable disk. It is also called as rewritable media.
Q.39 The currently executing program and its related data are stored in the
a) secondary memory.
b) cache memory.
c) DRAM.
d) main memory.
Answer:
(d)
Explanation: It’s a storage device used by a computer to hold the currently executing program and its working data.
Q.40 The printers used to print an optical image are
a) electromagnetic printers.
b) laser printers.
c) inkjet printers.
d) electrostatic printers.
Answer:
(d)
Explanation: Electrostatic Printers are instruments, which is used to print an optical image on a specially treated paper. Electro-statically charged and uncharged portions of the paper illustrate light and dark portions of the original image.
Important Questions for Informatics Practices (IP) class 11 chapter-Hardware Concepts set-3
Q.41 The number of bits in a word is called
a) bytes.
b) word strength.
c) word length.
d) memory space.
Answer:
(c)
Explanation: Word length is the number of bits in a word. It stores information in the word. The amount of information is the word length.
Q.42 Data storage device is
a) designed to store data such as, a printer.
b) an input device.
c) an out put device.
d) any device that is designed to store data such as a hard drive.
Answer:
(d)
Explanation: A data storage device is used to store data and its related information.
Q.43 The computer hardware input device that allows a person to scan an image and download it to the computer is
a) printer.
b) scanner.
c) joy stick.
d) light pen.
Answer:
(b)
Explanation: A scanner scans an image and we can save it on a computer.
Q.44 A hardware peripheral that allows computer users to input audio into their computers is
a) speaker.
b) keyboard.
c) mouse.
d) microphone.
Answer:
(d)
Explanation: A mic converts the sound received into computer’s format, which is in digitalized sound.
Q.45 The other name for ROM is
a) RAM
b) volatile memory.
c) cache memory.
d) secondary memory.
Answer:
(b)
Explanation: ROM is a non-volatile memory because it is not power dependant.
Q.45 Device used as the standard pointing device in a Graphical User Environment is
a) joystick.
b) mouse.
c) keyboard.
d) trackball.
Answer:
(b)
Explanation: A mouse is a pointer device that points on the location of the cursor on the screen.
Q.47 The number of bits of information that each memory cell in a computer chip can hold is
a) 0 bits.
b) 1 bits.
c) 2 bits.
d) 4 bit.
Answer:
(b)
Explanation: A memory cell stores one bit of information at a time. A collection of these bits makes a word. 0 bits
Q.48 The storage device that can store maximum amount of data is
a) floppy disks.
b) hard disk.
c) compact disk.
d) magnetic optical disk.
Answer:
(b)
Explanation: A hard disk, can store anywhere from 10 to more than 100 gigabytes.
Q.49 Storage capacity of hard disk in a common PC is measured in
a) GB.
b) MB.
c) KB.
d) TB.
e)
Answer:
(a)
Explanation: The capacity of a hard disk is measured in Gigabytes.
Q.50 RAM is described as memory, that
a) temporarily stores data or programs.
b) is retained even after the computer is shut off.
c) is controlled by the storage unit.
d) permanently stores instructions.
Answer:
(a)
Explanation: RAM is volatile in nature. Therefore, on power failure the unsaved data gets erased.
Q.51 The number of keys in a keyboard is
a) 100 to 110
b) 101 to 105.
c) 106 to 120.
d) 109 to 115.
Answer:
(b)
Explanation: A keyboard has 101 to 105 keys. There are different types of keys on the keyboard, which include the number keys, character keys and the various symbolic keys.
Q.52 A vector of bits that identifies a particular memory element is called
a) word.
b) memory address.
c) memory.
d) byte.
Answer:
(b)
Explanation: The memory address of an element, which contains bit information, is an array of bits with information organized in the form of memory cells.
Q.53 The RAM that needs to be refreshed is
a) DRAM.
b) SRAM.
c) SSRAM.
d) DSRAM.
Answer:
(a)
Explanation: As capacitors lose their charge over time, dynamic RAM boards must include logic to “refresh” (recharge) the RAM chips. This is needed as many as thousand times a second, which is called as memory refreshing.
Q.54 The type of ROM that should not be exposed to ultraviolet light is
a) programmable ROM.
b) erasable PROM.
c) electrical PROM.
d) EEPROM.
Answer:
(b)
Explanation: EPROM is a special type of memory that retains its contents until, it is
exposed to ultraviolet light.
Q.55 Calculations are made by the computer with the help of its
a) main memory.
b) cache memory.
c) ALU.
d) control unit.
Answer:
(c)
Explanation: All the arithmetic and logical calculations are made in the Arithmetic and Logical Unit.
Q.55 The processor and the memory are located on the
a) expansion board.
b) motherboard.
c) output device.
d) storage component.
Answer:
(b)
Explanation: All the components of memory are embedded on the motherboard.
Q.57 A floppy disk has a storage capacity of
a) 1.44 MB.
b) 700 MB.
c) 40 GB.
d) 10 MB.
Answer:
(a)
Explanation: A floppy disk is a data storage medium, which is composed of a disk of thin, flexible ("floppy") magnetic storage medium, encased in a square or rectangular plastic shell.
Q.58 A bit stands for
a) binary digit.
b) binary data.
c) byte data.
d) bit data.
Answer:
(a)
Explanation: A bit is a binary digit, taking a value of either 0 or 1. Binary digits are the basic unit of information storage and communication in digital computing.
Q.59 The memory access time is measured in
a) milliseconds.
b) microseconds.
c) seconds.
d) nanoseconds.
Answer:
(d)
Explanation: The memory access time is so small in magnitude, that it has to be measured in the smallest unit of time, that is nanoseconds.
Q.60 ROM stands for
a) Random Access Memory.
b) Read Only Memory.
c) Read Output Memory.
d) Routine Output Memory.
Answer:
(b)
Explanation: ROM is Read Only Memory because data can be only read from it and cannot be modified.
Q.61 In computer science, information means
a) any output coming out from the computer.
b) processed data, which is put in intelligent form.
c) a report printed by computer.
d) plural of data.
Answer:
(b)
Explanation: Data is raw facts and information is meaningful data. When the raw
facts are processed and put in a form so that, they can be used for various purposes, then, it is information.
Q.62 The language processor, which converts an HLL program into machine language in one go, is
a) interpreter.
b) assembler.
c) compiler.
d) debugger.
Answer:
(c)
Explanation: Compiler reports all the errors of the program, along with the line numbers. After all the errors are removed, the program is recompiled.
Q.63 PACE is acronym for
a) Processor for Aerodynamics Computation and Evaluation.
b) Processor for Administration and Corporate Evaluation.
c) Project Active Computer Expert.
d) Paging for Aerodynamics and Computer Expert.
Answer:
(a)
Explanation: PACE was developed by Hyderabad-based, advanced numerical research and analysis group.
Q.64 The weakness of computer is its
a) high speed.
b) high storage capacity.
c) versatility.
d) lack of decision making power.
Answer:
(d)
Explanation: The computer performs the functions, which are feed into the system. It cannot decide on its own.
Q.65 The supercomputer, which was developed outside India, is
a) PARAM.
b) PACE.
c) VAX.
d) CDC-205.
Answer:
(c)
Explanation: VAX is not developed in India. It is a minicomputer, which is less powerful than a supercomputer.
Q.65 Storage of 1KB means
a) 1000 bytes.
b) 964 bytes.
c) 1024 bytes.
d) 1064 bytes.
Answer:
(c)
Explanation: 1KB means 210 bytes i.e. 1024 bytes.
Q.67 Second generation computers used
a) vacuum tubes.
b) integrated circuit.
c) transistor.
d) VLSI circuit.
Answer:
(c)
Explanation: Transistors are reliable as compared to vacuum tubes, and they occupy less space.
Q.68 Third generation computers used
a) transistors.
b) integrated circuitry.
c) vacuum tubes.
d) built in error detecting devices.
Answer:
(b)
Explanation: An IC knew, as a chip is a thin slice of extremely purified silicon crystals.
Q.69 Fifth generation computer uses
a) parallel processing.
b) vacuum tubes.
c) integrated circuit.
d) transistor.
Answer:
(a)
Explanation: Parallel processing concept is used in fifth-generation computers. In this concept, many processors are grouped, to function as one large group processor.
Q.70 The concept of stored programs is developed by
a) Eckert.
b) Mauchly.
c) Neumann.
d) M.V. Wilkes.
Answer:
(c)
Explanation: Von Neumann gave the concept of stored program in which, the machine instructions are stored with data internally.
Q.71 IPO cycle stands for
a) Input-Process-Output.
b) Input Process Organization.
c) Integrated Procedure Operation.
d) Integrated Procedure Output.
Answer:
(a)
Explanation: In IPO cycle, every operation undergoes three phases namely input, process and output.
Q.72 Punched card was fabricated by
a) Charles Babbage.
b) Herman Hollerith.
c) Von Neumann.
d) Herman Babbage.
Answer:
(b)
Explanation: Punched cards was developed by Charles Babbage but, was fabricated by Herman Hollerith.
Q.73 The smallest measuring unit of memory is a
a) kilobyte.
b) megabyte.
c) gigabyte.
d) byte.
Answer:
(d)
Explanation: A byte can store one character in binary form. One byte means 8 bits.
Q.74 The computers, which deal with discrete values, are
a) analog computers.
b) hybrid computers.
c) digital computers.
d) mini-computers.
Answer:
(c)
Explanation: Digital computers convert the data into digits (0 and 1 and all the operations are carried out on these digits at extremely fast rates.
Q.75 Instructions to the computer are given through
a) hardware.
b) program.
c) input.
d) output.
Answer:
(b)
Explanation: Computer programs are instructions for a computer. All the instructions to the program are given in the form of code.
Q.75 The combination of analog and digital computers is known as
a) analog digital computer.
b) logical computer.
c) super computer.
d) hybrid computer.
Answer:
(d)
Explanation: Hybrid computer have both the features of analog and digital computer. In these computers, some of the calculations are done in analog manner, while others are done in digital manner.
Q.78 MAGNUM is an example of
a) minicomputer.
b) mainframe computer.
c) super computer.
d) microcomputers.
Answer:
(a)
Explanation: MAGNUM is a minicomputer, which is more powerful than microcomputers, in terms of processing power and capabilities.
Q.79 The machine slide rule is developed by
a) mesopotamians.
b) John Napier.
c) Blaise Pascal.
d) Leibnitz.
Answer:
(b)
Explanation: John Napier developed the concept of logarithm slide rule and Napier’s bones.
Q.80 The term related to the scanner is
a) laser.
b) twain.
c) cartridge.
d) media.
Answer:
(b)
Explanation: Twain is a standard software protocol and application programming interface (API), that regulates communication between software applications and imaging devices such as, the scanners and digital cameras.
Q.81 One of the part of CPU is
a) ALU.
b) memory.
c) control unit.
d) input device.
Answer:
(a)
Explanation: ALU is one of the components of CPU, which carries out arithmetic and logical operations.