Computer - Basics MCQ Quiz - Objective Question with Answer for Computer - Basics - Download Free PDF

The correct answer is Android.

Key Points

• Android is not a web-based search engine but rather a mobile operating system developed by Google.
  • It is designed for touchscreen devices such as smartphones and tablets.
  • Android provides the platform for users to install apps, including web browsers and search engine apps, to access the internet.
  • While Google, Bing, and Yahoo are search engines used to find information on the web, Android serves as the operating system enabling the device’s functionality.
  • Search engines like Google and Bing can be accessed on Android devices through web browsers or dedicated apps.

Additional Information

• Bing, Google, and Yahoo are conventional web-based search engines used to find information on the internet.
• Web-based search engines work by crawling, indexing, and ranking web pages to provide relevant search results based on user queries.
• Android powers millions of devices globally and supports various apps, including those for communication, entertainment, productivity, and web browsing.
• While Android allows you to access search engines, it itself is not a search engine.

The correct answer is Eight bits.

Key Points

• A byte is a unit of digital information that consists of eight bits.
• It is the basic addressable element in many computer architectures and is used to represent a single character of data.
• The size of a byte has historically been hardware-dependent and no definitive standards existed that mandated the size.
• However, the de facto standard established in the 1960s is that a byte is composed of eight bits, which has become widely accepted and used in most modern computing architectures.

Additional Information

• Bit:
  • A bit (short for binary digit) is the most basic unit of information in computing and digital communications.
  • It can have a value of either 0 or 1, which represents the binary state's two possible values.
  • Bits are used to encode data and perform operations in binary code, which is the foundation of all modern computing systems.
• Nibble:
  • A nibble is a four-bit aggregation, or half an octet (an octet being a group of eight bits, which is another term for a byte).
  • It is also sometimes referred to as a semioctet or quartet.
  • Nibbles are used in computing and digital electronics to represent a digit in hexadecimal (base-16) numbering systems.
• Byte:
  • A byte is a unit of digital information that consists of eight bits, which can represent 256 (2^8) different values.
  • Bytes are the standard chunk size for representing a single character of text in computers.
  • They are also used to define the size of other data types, like kilobytes (KB), megabytes (MB), gigabytes (GB), and so on, where each successive unit is a multiple of 1024 bytes.
• Binary Code:
  • Binary code is a system of representing text or computer processor instructions using the binary number system, which uses only two binary digits, 0 and 1.
  • Each bit in a binary code represents a power of 2, and multiple bits together can represent larger numbers or more complex data.
  • Binary code is the fundamental language of computers and digital systems, enabling the encoding, storage, and manipulation of data.

The correct answer is All of the above.

Key Points

• A computer system comprises a central processing unit (CPU), which is responsible for executing instructions and processing data.
• Memory in a computer system stores data and instructions that the CPU needs to execute tasks.
• Input and output units are essential components that allow a computer to interact with the external environment by receiving input and providing output.
• All these components work together to make a computer system functional and capable of performing various tasks.

Additional Information 

• Central Processing Unit (CPU):
  • Often referred to as the brain of the computer, the CPU is responsible for executing instructions from programs and processing data.
  • It performs arithmetic, logic, control, and input/output (I/O) operations specified by the instructions in the program.
  • Modern CPUs contain multiple cores, allowing them to execute multiple instructions simultaneously, thereby improving performance.
• Memory:
  • Memory in a computer system is used to store data temporarily (RAM) or permanently (ROM, hard drives, SSDs).
  • Random Access Memory (RAM) is volatile memory used for temporary storage while the computer is running.
  • Read-Only Memory (ROM) is non-volatile memory that stores critical system instructions and data needed for booting up the computer.
• Input and Output Units:
  • Input units allow users to provide data and instructions to the computer (e.g., keyboard, mouse, scanner).
  • Output units allow the computer to communicate results and information to the user (e.g., monitor, printer, speakers).
  • These units are essential for user interaction and for the computer to perform meaningful tasks.

The correct answer is Local, Wide and Metropolitan.

Key Points

• The first alphabets L, W, and M in LAN, WAN, and MAN respectively stand for:
  • LAN: Local Area Network
  • WAN: Wide Area Network
  • MAN: Metropolitan Area Network
• These terms are used to describe different types of computer networks based on their geographical scope.
  • LAN is a network that is typically limited to a small geographic area, such as a home, office building, or campus.
  • WAN covers a larger geographical area, such as a city, region, or even the entire globe.
  • MAN falls in between, covering a larger area than a LAN but not as large as a WAN, usually covering a city or metropolitan area.

The correct answer is Create data.

Key Points

• A computer primarily functions to take data as input, process that data, and manipulate it as needed.
  • Input: Computers receive data from various input devices like keyboards, mice, and scanners.
  • Processing: The central processing unit (CPU) processes the received data based on programmed instructions.
  • Manipulation: Data manipulation involves modifying data to achieve a desired outcome.
• While computers can generate data as a result of data processing, they do not inherently "create" data without input. The creation of data typically involves human intervention or external data sources.

Additional Information

• Computers also perform other functions like storing data, retrieving data, and outputting data.
  • Storage: Data is stored in storage devices such as hard drives, SSDs, or cloud storage.
  • Retrieval: Stored data can be retrieved for future use or processing.
  • Output: Data is output through devices like monitors, printers, and speakers.
• Computers are designed to follow instructions provided by software applications to perform specific tasks.
• The combination of hardware and software allows computers to execute a wide range of activities efficiently.

Correct Answer is Second Generation

Concept:

Second Generation (1955-1964) computer made was completely based upon transistors. Transistors replaced vacuum tubes in computers. It was invented at Bell Labs by Walter H. Brattain, John Bardeen and William B. Shockley.The TX-0 was the first computer that used transistors, It was released in 1956.These second-generation machines were used for a wide variety of business and scientific jobs and used high-level programming and assembly languages such as FORTRAN (Formula Translator) and COBOL (Common Business Oriented Language).

Additional Information

The second-generation computers had several features: 

• ​Computers made in the second generation used transistors that made them more reliable, smaller in size, faster in speed, more energy-efficient, and cheaper compared to the first generation of computers.
• They contain magnetic storage disks and magnetic core memory.
• They used high-level languages such as FORTRAN and COBOL and allowed communication with the help of a telephone line.
• As compared to the first generation of computers, the data processing time reduced from milliseconds to microseconds.

Key Points

 Option 1: ​It converts the input data and instructions into a computer-acceptable form.

True, The input unit converts these instructions and data into a computer in an acceptable format.

Option 2: It sends input data and instructions to storage devices for storage and further processing.

True, The input device sends input data and instructions to storage devices for storage and further processing.

Option 3: It processes the input data and sends the result directly to the output device.

False, Input devices can send input data or information to a computer or another device. After that, the computer processes the data and sends it back to the output devices like the screen. 

Option 4: It reads data and instructions from the outside world.

True, Input devices Device that accepts data and instructions from the outside world like, Keyboard Mouse Trackball Joystick Light pen Touch Screen Scanner Bar code.

Hence the correct answer is It processes the input data and sends the result directly to the output device.

The correct answer is Android.

Key Points

• Android is not a web-based search engine but rather a mobile operating system developed by Google.
  • It is designed for touchscreen devices such as smartphones and tablets.
  • Android provides the platform for users to install apps, including web browsers and search engine apps, to access the internet.
  • While Google, Bing, and Yahoo are search engines used to find information on the web, Android serves as the operating system enabling the device’s functionality.
  • Search engines like Google and Bing can be accessed on Android devices through web browsers or dedicated apps.

Additional Information

• Bing, Google, and Yahoo are conventional web-based search engines used to find information on the internet.
• Web-based search engines work by crawling, indexing, and ranking web pages to provide relevant search results based on user queries.
• Android powers millions of devices globally and supports various apps, including those for communication, entertainment, productivity, and web browsing.
• While Android allows you to access search engines, it itself is not a search engine.

Correct Answer is Second Generation

Concept:

Second Generation (1955-1964) computer made was completely based upon transistors. Transistors replaced vacuum tubes in computers. It was invented at Bell Labs by Walter H. Brattain, John Bardeen and William B. Shockley.The TX-0 was the first computer that used transistors, It was released in 1956.These second-generation machines were used for a wide variety of business and scientific jobs and used high-level programming and assembly languages such as FORTRAN (Formula Translator) and COBOL (Common Business Oriented Language).

Additional Information

The second-generation computers had several features: 

• ​Computers made in the second generation used transistors that made them more reliable, smaller in size, faster in speed, more energy-efficient, and cheaper compared to the first generation of computers.
• They contain magnetic storage disks and magnetic core memory.
• They used high-level languages such as FORTRAN and COBOL and allowed communication with the help of a telephone line.
• As compared to the first generation of computers, the data processing time reduced from milliseconds to microseconds.

The correct answer is Universal Serial Bus.

Key Points

• Universal Serial Bus (USB) is an industry-standard that establishes specifications for cables and connectors and protocols for connection, communication, and power supply (interfacing) between computers, peripherals, and other computers.
  • A broad variety of USB hardware exists, including eleven different connectors, of which USB-C is the most recent.
  • Released in 1996, the USB standard is maintained by the USB Implementers Forum (USB-IF).
  • There have been four generations of USB specifications: USB 1.x, USB 2.0, USB 3.x, and USB4.

Additional Information

• Some important abbreviations used in Computer:
  • BIOS - Basic Input Output System
  • CAD - Computer-Aided Design
  • EDVAC - Electronic Discrete Variable Automatic Computer.
  • EPROM - Erasable Programmable Read-Only Memory
  • FORTRAN - Formula Translation
  • GPRS - General Packet Radio Service

Key Points

 Option 1: ​It converts the input data and instructions into a computer-acceptable form.

True, The input unit converts these instructions and data into a computer in an acceptable format.

Option 2: It sends input data and instructions to storage devices for storage and further processing.

True, The input device sends input data and instructions to storage devices for storage and further processing.

Option 3: It processes the input data and sends the result directly to the output device.

False, Input devices can send input data or information to a computer or another device. After that, the computer processes the data and sends it back to the output devices like the screen. 

Option 4: It reads data and instructions from the outside world.

True, Input devices Device that accepts data and instructions from the outside world like, Keyboard Mouse Trackball Joystick Light pen Touch Screen Scanner Bar code.

Hence the correct answer is It processes the input data and sends the result directly to the output device.

The correct answer is Local, Wide and Metropolitan.

Key Points

• The first alphabets L, W, and M in LAN, WAN, and MAN respectively stand for:
  • LAN: Local Area Network
  • WAN: Wide Area Network
  • MAN: Metropolitan Area Network
• These terms are used to describe different types of computer networks based on their geographical scope.
  • LAN is a network that is typically limited to a small geographic area, such as a home, office building, or campus.
  • WAN covers a larger geographical area, such as a city, region, or even the entire globe.
  • MAN falls in between, covering a larger area than a LAN but not as large as a WAN, usually covering a city or metropolitan area.

The correct answer is Local, Wide and Metropolitan.

Key Points

• The first alphabets L, W, and M in LAN, WAN, and MAN respectively stand for:
  • LAN: Local Area Network
  • WAN: Wide Area Network
  • MAN: Metropolitan Area Network
• These terms are used to describe different types of computer networks based on their geographical scope.
  • LAN is a network that is typically limited to a small geographic area, such as a home, office building, or campus.
  • WAN covers a larger geographical area, such as a city, region, or even the entire globe.
  • MAN falls in between, covering a larger area than a LAN but not as large as a WAN, usually covering a city or metropolitan area.

The correct answer is Android.

Key Points

• Android is not a web-based search engine but rather a mobile operating system developed by Google.
  • It is designed for touchscreen devices such as smartphones and tablets.
  • Android provides the platform for users to install apps, including web browsers and search engine apps, to access the internet.
  • While Google, Bing, and Yahoo are search engines used to find information on the web, Android serves as the operating system enabling the device’s functionality.
  • Search engines like Google and Bing can be accessed on Android devices through web browsers or dedicated apps.

Additional Information

• Bing, Google, and Yahoo are conventional web-based search engines used to find information on the internet.
• Web-based search engines work by crawling, indexing, and ranking web pages to provide relevant search results based on user queries.
• Android powers millions of devices globally and supports various apps, including those for communication, entertainment, productivity, and web browsing.
• While Android allows you to access search engines, it itself is not a search engine.

The correct answer is Eight bits.

Key Points

• A byte is a unit of digital information that consists of eight bits.
• It is the basic addressable element in many computer architectures and is used to represent a single character of data.
• The size of a byte has historically been hardware-dependent and no definitive standards existed that mandated the size.
• However, the de facto standard established in the 1960s is that a byte is composed of eight bits, which has become widely accepted and used in most modern computing architectures.

Additional Information

• Bit:
  • A bit (short for binary digit) is the most basic unit of information in computing and digital communications.
  • It can have a value of either 0 or 1, which represents the binary state's two possible values.
  • Bits are used to encode data and perform operations in binary code, which is the foundation of all modern computing systems.
• Nibble:
  • A nibble is a four-bit aggregation, or half an octet (an octet being a group of eight bits, which is another term for a byte).
  • It is also sometimes referred to as a semioctet or quartet.
  • Nibbles are used in computing and digital electronics to represent a digit in hexadecimal (base-16) numbering systems.
• Byte:
  • A byte is a unit of digital information that consists of eight bits, which can represent 256 (2^8) different values.
  • Bytes are the standard chunk size for representing a single character of text in computers.
  • They are also used to define the size of other data types, like kilobytes (KB), megabytes (MB), gigabytes (GB), and so on, where each successive unit is a multiple of 1024 bytes.
• Binary Code:
  • Binary code is a system of representing text or computer processor instructions using the binary number system, which uses only two binary digits, 0 and 1.
  • Each bit in a binary code represents a power of 2, and multiple bits together can represent larger numbers or more complex data.
  • Binary code is the fundamental language of computers and digital systems, enabling the encoding, storage, and manipulation of data.