Here are the question answers with reasons:
*1. It is the special type of ROM that may be customized to the needs of the user*
Answer: (b) PROM (Programmable Read-Only Memory)
Reason: PROM is a type of ROM that can be programmed by the user once, whereas ROM is pre-programmed and cannot be changed.
*2. Developing computer programs using the modular approach is known as*
Answer: (c) Modular programming
Reason: Modular programming involves breaking down a program into smaller, independent modules that can be developed and tested separately.
*3. In the third generation computers, this solid-state device was used to improve the processing speed*
Answer: (a) IC Chips (Integrated Circuits)
Reason: IC Chips, also known as microprocessors, revolutionized computing in the third generation by increasing processing speed and reducing size.
*4. The software that manages the resources of a computer system and schedules operations is called*
Answer: (a) Operating system
Reason: An operating system (OS) manages hardware resources, schedules tasks, and provides a platform for running applications.
*5. The name "personal computer" was coined by*
Answer: (d) IBM (International Business Machines)
Reason: IBM introduced the first commercially successful personal computer, the IBM PC, in 1981, popularizing the term "personal computer."
*6. It is an input device*
Answer: (c) Bar Code Reader
Reason: A bar code reader is an input device that scans barcodes and sends the data to the computer.
*7. It refers to a network that belongs to a particular organization or company*
Answer: (d) LAN (Local Area Network)
Reason: A LAN is a computer network confined to a specific organization or location, distinguished from WAN (Wide Area Network) and MAN (Metropolitan Area Network).
*8. This printer prints an entire line at a time*
Answer: (c) Line printer
Reason: A line printer is a type of impact printer that prints entire lines of text at once, unlike character printers.
*9. These types of computers are placed in between minicomputers and microcomputers in terms of processing power*
Answer: (a) Workstations
Reason: Workstations are powerful computers designed for specialized tasks, sitting between minicomputers and microcomputers in processing power.
Please let me know if you'd like further clarification!
Here are the answers with reasons:
1. An operating system that can manage a series of CPUs working together is known as
Answer: (a) Multi-processing operating system
Reason: Multi-processing operating systems can manage multiple CPUs, distributing tasks and increasing processing power.
1. Computers that combine features of both analog and digital types are known as
Answer: (c) Hybrid
Reason: Hybrid computers combine analog (continuous signals) and digital (discrete signals) processing capabilities.
1. The sequence of steps that the CPU executes is called
Answer: (d) Algorithm
Reason: An algorithm is a set of instructions that the CPU executes to perform a specific task.
1. Optical disks are popularly known as
Answer: (a) CD disk (Compact Disc)
Reason: CD disks are a type of optical disk used for storing digital data.
1. It is a system program used to type or edit text or program statements
Answer: (a) Text editor
Reason: Text editors are software programs for creating, editing, and manipulating text files.
1. Internet uses a protocol popularly known as
Answer: (b) TCP/IP (Transmission Control Protocol/Internet Protocol)
Reason: TCP/IP is the fundamental protocol suite used for communication over the Internet.
Match the following:
1. MAN - (d) Metropolitan Area Network
2. Scanner - (i) Input device
3. Fourth generation computer - (f) Microprocessor-based
4. Hard disk - (g) Winchester disk
5. Non-volatile - (j) ROM (Read-Only Memory)
6. User-written program - (e) Source program
7. Collection of networks - (h) Internet
8. Language processors - (c) Translator
9. Utility programs - (b) Prewritten programs
10. Operates by counting - (a) Digital computer
Here are the answers with reasons:
*1. A computer is an electronic device that can perform*
Answer: (d) All of the above (Sequential, Iteration, Selection operations)
Reason: Computers can perform various operations, including sequential, iterative, and selective processing.
*2. Programs that run on a computer are referred to as*
Answer: (b) Software
Reason: Software encompasses programs, applications, and operating systems that run on computer hardware.
*3. Default pointing device of a laptop is*
Answer: (c) Touchpad
Reason: Touchpads are the primary pointing device on laptops.
*4. The length of a one-byte instruction is*
Answer: (a) 8 bits
Reason: A byte typically consists of 8 binary bits (0s and 1s).
*5. In a machine instruction format, S-bit is the*
Answer: (b) Sign bit
Reason: The S-bit (Sign bit) indicates whether a number is positive or negative.
*6. What happens when we format a pen drive?*
Answer: (a) Removes all information from the pen drive
Reason: Formatting a pen drive erases all data, restoring it to its original state.
*7. Which command is used to record a user login session in a file?*
Answer: (c) Script
Reason: The `script` command records terminal sessions to a file.
*8. The architecture of Linux Operating System is*
Answer: (d) Monolithic Kernel
Reason: Linux has a monolithic kernel architecture, integrating core operating system components.
Additional information:
- Firmware is software stored in non-volatile memory (e.g., BIOS).
- Optical mice use light to detect movement.
- Sectors store data on disks.
- UNIX is an operating system; Linux is based on UNIX principles.
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Here are the answers with reasons:
1. Linux is
Answer: (c) Open Source Software
Reason: Linux is an open-source operating system, freely available and modifiable.
1. The process of removing unwanted parts of an image is called
Answer: (c) Cropping
Reason: Cropping involves removing unwanted areas from an image.
1. In a wireless ad-hoc network
Answer: (a) Access point is not required
Reason: Ad-hoc networks connect devices directly, without access points.
1. In a wireless distribution system
Answer: (a) Multiple access points are inter-connected with each other
Reason: Wireless distribution systems (WDS) connect multiple access points.
1. The process of converting subject matter into symbols is called
Answer: (b) Encoding
Reason: Encoding translates information into coded symbols.
1. A video consists of a sequence of
Answer: (d) Frames
Reason: Videos comprise frames displayed in rapid succession.
1. Translation of an encoded message into ordinary understandable language is
Answer: (d) Decoding
Reason: Decoding converts encoded messages back into understandable language.
Match the following:
1. Information - (d) Data
2. Encryption - (a) Information Security
3. Machine language - (e) Low-level programming language
4. Compiler - (b) Translates high-level language to object code
5. Operating system - (c) Allows multiple jobs in CPU
6. Multi-user operating system - (f) Supports multiple user accounts
Additional explanations:
- Proprietary software has restricted access and modification.
- Encoding converts information into coded symbols.
- Decoding reverses encoding.
- Access points manage wireless network connections.
- Frames compose video sequences.
Please let me know if you'd like further clarification!
Here are the answers with reasons:
1. Aqua cad
Answer: (f) Computer-aided design (CAD) software for architecture/engineering
Reason: Aqua cad is a CAD software for 2D/3D modeling and design.
1. Bus topology
Answer: (d) Network configuration with a single cable connecting devices
Reason: Bus topology features a single cable (backbone) connecting devices.
1. Audio-visual aids
Answer: (i) Educational tools combining sound and images
Reason: Audio-visual aids enhance learning through multimedia presentations.
1. High-Level Language
Answer: (e) Programming language easy for humans to read/write
Reason: High-Level Languages (HLLs) are programmer-friendly, unlike machine language.
Match the following:
1. Instructional devices - (g) Teaching tools
2. Interface between man and computer - (h) User Interface (UI)
3. Directly understood by the computer - (b) Machine language
4. Collection of processed data - (a) Information
Additional explanations:
- CAD software facilitates precise designs and modeling.
- Bus topology is a network configuration.
- Audio-visual aids engage learners.
- High-Level Languages simplify programming.
- Machine language is binary code understood by computers.
1. Shortcut key to paste a file
Answer: (c) Ctrl+v
Reason: Ctrl+v is the standard shortcut for pasting.
1. Final version of Visual Basic released by Microsoft
Answer: (b) 6.0
Reason: Visual Basic 6.0 was the last major release.
1. MU+ALU-CU represents
Answer: (a) CPU (Central Processing Unit)
Reason: CPU consists of Memory Unit (MU), Arithmetic Logic Unit (ALU), and Control Unit (CU).
1. Language executed fastest by computers
Answer: (d) Both a and c (Binary and Machine language)
Reason: Binary and machine languages are directly executed by computers.
1. Microsoft introduced Windows in
Answer: (c) 1983 (November 10)
Reason: Windows 1.0 was released in 1983.
1. Google LLC is a subsidiary of
Answer: (a) Alphabet Inc.
Reason: Alphabet Inc. is Google's parent company.
1. Sequence of instructions for desired results
Answer: (a) Algorithm
Reason: Algorithms define step-by-step procedures.
1. Conducting trading using computer networks
Answer: (b) e-commerce
Reason: Electronic commerce (e-commerce) enables online trading.
1. Standard protocol for computer identification over Internet
Answer: (b) HTTP (Hypertext Transfer Protocol)
Reason: HTTP enables communication between computers.
1. Modem derived from
Answer: (c) Modulator & demodulator
Reason: Modems modulate and demodulate signals.
1. Address of a computer connected to Internet
Answer: (d) All (URL, Domain, IP address)
Reason: Each identifies a computer on the Internet.
1. Display type visual
Answer: (a) Flash Cards
Reason: Flashcards display information visually.
Additional explanations:
- Visual Basic is an event-driven programming language.
- Binary and machine languages are directly executed.
- HTTP enables Internet communication.
- Modems facilitate internet connectivity.
- IP addresses, domains, and URLs identify computers.
1. Speed of supercomputer measured in
Answer: (c) MIPS (Millions of Instructions Per Second) or FLOPS (Floating-Point Operations Per Second)
Reason: MIPS measures processing speed.
1. Most widely used LAN technology
Answer: (a) Ethernet
Reason: Ethernet dominates local area networks.
Match the following:
1. MS Word - (6) Word processing software (.doc)
2. Input Device - (8) Keyboard
3. Operating System - (5) Linux
4. MS Excel - (3) Spreadsheet software (.xls)
5. Audio Aid - (1) Tape recorder
6. Output Device - (2) Monitor
7. MS PowerPoint - (7) Presentation software (.ppt)
8. Visual Aid - (10) Photograph
9. Audio Visual Aid - (9) Video
10. Cone of experience - (4) Edgar Dale's learning model
Additional explanations:
- MOPS measures operations per second.
- Ethernet is a LAN standard.
- MIPS measures processing speed.
- Edgar Dale's Cone of Experience models learning retention.
1. Term modem derived from
Answer: (c) Modulator & demodulator
Reason: Modems modulate and demodulate signals.
1. Address of a computer connected to Internet
Answer: (d) All (URL, Domain, IP address)
Reason: Each identifies a computer on the Internet.
1. Display type visual
Answer: (a) Flash Cards
Reason: Flashcards display information visually.
1. Speed of supercomputer measured in
Answer: (c) MIPS (Millions of Instructions Per Second) or MOPS
Reason: MIPS/MOPS measure processing speed.
1. Most widely used LAN technology
Answer: (a) Ethernet
Reason: Ethernet dominates local area networks.
Match the following:
1. MS Word - (c) doc (Word processing software)
2. Input Device - (h) Keyboard
3. Operating System - (g) Linux
4. MS Excel - (d) xls (Spreadsheet software)
5. Audio Aid - (i) Tape recorder
6. Output Device - (c) Monitor
7. MS PowerPoint - (f) .ppt (Presentation software)
8. Visual Aid - (j) Photograph
9. Audio Visual Aid - (k) Video
10. Cone of experience - (b) Edgar Dale (Learning model)
Additional explanations:
- Modems facilitate internet connectivity.
- URL, Domain, and IP address identify computers.
- Flashcards display information visually.
- MIPS/MOPS measure processing speed.
- Ethernet is a LAN standard.
- Edgar Dale's Cone of Experience models learning retention.
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