Introduction to Computers MCQ Quiz - Objective Question with Answer for Introduction to Computers - Download Free PDF

The correct option is (2)

Output device

Key Points

• Dot matrix printers output as dots, allowing for the printing of any character shape. This enables printing of unique characters, charts, graphs, etc. Impact printers include dot matrix printers in their category.
• Dot matrix printing, also known as impact matrix printing, is a computer printing technique in which ink is applied to a surface while using a dot matrix with a layout that is relatively low-resolution.
• An output device is a piece of machinery or hardware that, after processing input data (translating it from machine language to a human-understandable language), outputs the processed data. such as a printer, a monitor, etc.

Additional Information

Processing device:- The parts of the computer system that handle information processing are called processing devices.

Memory devices:- Memory gadgets, A memory is similar to the human brain. It serves as a data and instruction storage device.

Input devices:- An input device is a piece of hardware used in computing to send data and control signals to a system that processes information, like a computer or information appliance. Keyboards, mice, scanners, cameras, joysticks, and microphones are a few examples of input devices.

The correct answer is All of the above.

• The 64-bit "word size" is only one aspect of internal processing and does not mean it is twice as fast as 32 bits.
• Information in computers is normally represented in bits, a binary sequence of ones and zeros.
• Specifically, a sequence of n bits can represent 2ⁿ different pieces of information.

Key Points

• The bits of the operating system and processor tells you the amount of information that can be processed by your CPU whenever it operates.
• With a 64-bit word size, the size of the chunks which your processor can handle data is doubled when compared to 32-bits.
• Using a 64-bit operating system with a 64-bit processor, the system can perform an increased number of calculations per second.

 Important Points

•  Advantages of the 64-bit system:
  • Enhanced Security features
  • Better computer performance 
  • Increased memory support
  • Better software performance

The correct answer is Indian Statistical Institute, Calcutta, 1955

Key Points

• India’s first computer was installed in 1955 in Indian Statistical Institute, Calcutta (now called Kolkata).

History of India’s first computer

• The age of computers in India began in 1955 with the installation of HEC-2M
• HEC-2M was a computer designed by A.D.Booth in England
• The Indian Statistical Institute (ISI) at Calcutta (now Kolkata) was the first institute to have the privilege.
• India bought its first computer for the amount of Rs 10 lakh.
• It was also recognized as a number-crunching machine with a huge size.

The computer age in India began in 1955 with the installation of HEC-2M (a computer designed by A.D.Booth in England) at the Indian Statistical Institute (ISI) at Calcutta (now Kolkata)

The correct answer is Query language.

Key Points

The various generations of computers are listed below:

The correct answer is Vacuum Tubes and Valves.

Key Points

• The first generation of computers (1940-1956) were primarily made using vacuum tubes and valves.
• These computers were massive, often taking up entire rooms, and they consumed a significant amount of electricity.
• Vacuum tubes were used for circuitry and magnetic drums for memory, which made these computers very large and inefficient.

Additional Information

• Transistors: Introduced in the second generation of computers (1956-1963), transistors replaced vacuum tubes and made computers smaller, faster, cheaper, and more energy-efficient.
• Integrated Circuits: Used in the third generation of computers (1964-1971), integrated circuits combined multiple transistors into a single chip, further reducing size and cost while increasing performance.
• Large Scale Integrated Circuits: These are used in the fourth generation of computers (1971-present). They integrate thousands of transistors onto a single chip, leading to the development of microprocessors and personal computers.

The correct answer is Query language.

Key Points

The various generations of computers are listed below:

The correct answer is Integrated circuits.

Key Points

Third Generation (1964-1977):

• This generation was introduced by the development of a small chip consisting of the capacity of the 300 transistors
• These Integrated Circuits (IC)s are popularly known as Chips.
• So it is quite obvious that the size of the computer got further reduced
• Some of the computers developed during this period were IBM-360, ICL-1900, IBM-370, and VAX-750
• Higher-level language such as BASIC (Beginners All-purpose Symbolic Instruction Code) was developed during this period​

Additional Information

The correct answer is PARAM 8000.

Key Points

• PARAM 8000 is considered to be the first supercomputer developed in India.
• PARAM is a series of supercomputers developed by C-DAC in Pune.
• PARAM supercomputers developed under the leadership of Vijay P Bhatkar.
• Supercomputers developed by India are EKA, PARAM, Kabru, Blue Gene.
• Pratyush is India's fastest supercomputer.

Additional Information

• SAGA 220 is the supercomputer developed by ISRO in 2011.
• PARAM Yuva II is the fastest in the prestigious PARAM series of Supercomputers built in India.
• SAHASRA T provides service in the fields of aerospace engineering, meteorology predictions, and astrological simulation.
• Seymour Cray is considered the father of the supercomputer.
• CDC 6600 is the world's first supercomputer.

 Important Points

• As of June 2023, the AIRAWAT supercomputer is the fastest supercomputer in India, having been ranked 75th fastest in the world in the TOP500 supercomputer list.

The correct answer is MHz.

Key Points

• Speed of Processor
  • ​Processor speed is relative to the clock speed which is measured in units of cycles per second.
  • CPUs run at rates of millions and billions of Hertz, megahertz(MHz) and gigahertz(GHz).
  • A clock speed of 3.5 GHz to 4.0GHz is generally considered a good processor speed.

Additional Information

• Processor(CPU)
  • A CPU is also called a central processor, main processor, or just processor, is the electronic circuitry that executing instructions comprising a computer program.
  • The CPU performs basic arithmetic, logic, controlling, and input/output operations specified by the instructions in the program.
  • The fundamental operation of most CPU's regardless of the physical form they take is to execute a sequence of stored instructions called a program. 
• Instructions cycle in Processor(CPU)
  • All CPU's follows the following steps in order to complete their operations:
    1. Fetch: The first step, involves retrieving instructions from the program memory.
    2. Decode: The instruction that the CPU fetches from the memory determines what the CPU will do, which is decoded by the instructor decoder.
    3. Execute: In this step, all the desired functions are performed as per the instructions decoded.

The correct answer is high-level language.

• Python is a high-level language.

Key Points

• Python
  • It is a high-level language.
  • It allows programming in Object-Oriented and Procedural paradigms. 
  • The language was created by Guido van Rossum.
  • It was first released in 1991.
  • It is used for web development (server-side), software development, mathematic, and system scripting.
  • It can work on platforms like Windows, Mac, Linux, Raspberry Pi, etc

Additional Information

• Machine language and Assembly language are an example of a low-level language.
  • Machine language is a low-level language that is comprised of binary digits i.e. ones and zeros. 
  • An assembly language is a language designed for a specific type of processor.

The correct answer is Numerical. 
"Electronic Numerical Integrator and Computer".

Key Points 

• In the year 1945, the first electronic general-purpose and digital computer, ENIAC was introduced.
• The full form of the ENIAC is Electronic Numerical Integrator and Computer.
• ENIAC was first used by the US Army's Ballistic research.

Thus the correct answer is Electronic Numerical Integrator and Computer.

Additional Information 

• First-generation computer: In the first-generation computer, the technology used is a vacuum tube. It is made of glass and was very much fragile. 
• Second-generation computer: In the second-generation computer, the technology used is a transistor. The material used behind the transistor is made of a semiconductor.
• Third-generation computer: In the third-generation computer, the technology used is an IC or Integrated Circuit. In this generation, high-level language is used.
• Fourth-generation computer: In the fourth-generation computer, the technology used is VLSI and microprocessor.
• Fifth-generation computer: In the fifth-generation computer, the technology used is ULSI technology.

The correct answer is Third Generation.

• Generation in computer terminology is a change in technology a computer is/was being used.
• Initially, the generation term was used to distinguish between varying hardware technologies.
• Nowadays, generation includes both hardware and software, which together make up an entire computer system.

Important Points

• There are five computer generations known to date:

  GENERATION	DESCRIPTION
  1st (1946-1959)	Vacuum tube-based.
  2nd (1959-1965)	Transistor-based.
  3rd (1965-1971)	Integrated Circuit based.
  4th (1971-1980)	VLSI microprocessor-based.
  5th (1980-onwards)	ULSI microprocessor-based.

The correct answer is Terabytes (TB).

• 1 Petabyte = 1024 Terabytes.
• The units of Computer Memory Measurements are: ​
  •  1 Bit = Binary Digit.
  •  8 Bits = 1 Byte
  • 1024 Bytes = 1 KB (Kilo Byte)
  • 1024 KB = 1 MB (Mega Byte)
  • 1024 MB = 1 GB (Giga Byte)
  • 1024 GB = 1 TB (Terra Byte)
  • 1024 TB = 1 PB (Petabyte)
  • 1024 PB = 1  EB (Exa Byte)
• ​Geop byte is the highest memory measurement unit.

The correct answer is: Option 1) Virus

Key Points

• A Virus is a piece of programming code that inserts itself into another program or file to spread and cause damage (e.g., corrupting data, stealing information, or disrupting system operations).

• Malware (Option 2) is a broader term that includes viruses, worms, ransomware, etc., but the question specifies a "piece of code inserted into another program," which matches a virus more precisely.

• Spam (Option 3) refers to unwanted emails/messages, not malicious code.

• Viral (Option 4) describes content spreading rapidly online, not a harmful program.

• A virus requires a host program to attach itself to, while other malware (like worms) can operate independently.

Final Answer:
✅ Option 1) Virus

The correct answer is Douglas T Ross.

Key Points

• APT stands for Automatically Programmed Tool.
  • It was developed by Douglas T Ross.
  • It is a language that defines the tool path with respect to the part geometry and often forms the basis for post-processor generated NC files.

Additional Information

• The APT programming language is a language for defining tool paths on CNC machines.
• The APT language consists of four types of statements:
  • ​Geometry statements will be used to specify the elemental features defining the part shape
  • Motion statements are used to specify the path taken by the tool
  • Post-processor statements control the machinery, controlling coolants as well as the feeds and speeds.
  • Auxiliary statements complete the picture, specifying the part, required tools, etc.