Computer Science/IT MCQs
Topic Notes: Computer Science/IT
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
5501
Which prominent technology company developed and launched the quantum processor known as 'Willow'?
Answer:
Google
Google is the technology giant that developed and launched the 'Willow' quantum processor. This processor is part of Google's ongoing efforts in quantum computing, specifically within their Quantum AI team. The development of processors like 'Willow' is a crucial step in their long-term goal of building a fault-tolerant quantum computer, which holds the promise of solving complex computational problems currently intractable for classical computers. While IBM, Microsoft, and Intel are also significant players in quantum computing, each has their own distinct quantum processor architectures and development paths (e.g., IBM with its 'Eagle' and 'Osprey' processors, Intel with 'Tunnel Falls').
5502
The introduction of keyboards and monitors for input/output is associated with which computer generation?
Answer:
Third Generation
The third generation saw a shift away from punch cards and printouts towards using keyboards for input and monitors for output. This development made computers much more interactive and user-friendly.
5503
Who is credited as the world's first computer programmer for her work on Charles Babbage's Analytical Engine?
Answer:
Ada Lovelace
Ada Lovelace, a mathematician and writer, published the first algorithm intended to be processed by a machine. Her detailed notes on the Analytical Engine are considered the first description of computer software.
5504
What is the standard markup language used to create and design documents to be displayed in a web browser?
Answer:
HTML
HTML (HyperText Markup Language) is the cornerstone technology of the World Wide Web. It is used to structure content on a web page, such as headings, paragraphs, images, and links.
5505
The programming language Ada, known for its strong safety features, was named in honor of:
Answer:
Ada Lovelace
The language was named after Ada Lovelace, who is recognized as the first computer programmer for her work on Charles Babbage's Analytical Engine. The name was chosen to honor her pioneering contributions to computing.
5506
Which domain name holds the distinction of being the first ever registered on the internet?
Answer:
symbolics.com
The correct answer is 'symbolics.com'. It was registered on March 15, 1985, by Symbolics Inc., a computer manufacturer. This historic registration marked a pivotal moment in the commercial development of the internet, preceding the widespread public adoption of domain names and setting a precedent for how online identities would be established.
5507
Which engineer, working independently at Fairchild Semiconductor, is recognized alongside Jack Kilby of Texas Instruments for the co-invention of the integrated circuit?
Answer:
Robert Noyce
The integrated circuit (IC) was a pivotal invention in electronics, and its development involved independent breakthroughs by two key figures. Jack Kilby of Texas Instruments is widely credited for creating the first working integrated circuit in September 1958. Simultaneously, Robert Noyce, co-founder of Fairchild Semiconductor, independently developed his own version of the integrated circuit in 1959. While Kilby's initial invention demonstrated the concept, Noyce's planar process proved more practical and scalable for mass production. Both contributions were crucial for the advancement of modern microelectronics, leading to their recognition as co-inventors. Gordon Moore was another co-founder of Fairchild Semiconductor and is known for Moore's Law, but not the IC's invention. William Shockley was a co-inventor of the transistor and Noyce's former boss. Steve Wozniak co-founded Apple Inc. much later.
5508
Which of the following is a feature of which computer generation?
Answer:
Fifth
Fifth-generation systems aim to process natural language and learn from data—hallmarks of AI. [cite: 216]
5509
Which IBM computer, launched in 1981, achieved widespread commercial success and significantly influenced the development of the personal computer market by establishing a dominant industry standard?
Answer:
The IBM Personal Computer (IBM PC)
The IBM Personal Computer, commonly known as the IBM PC, was introduced on August 12, 1981. It was IBM's first entry into the consumer-oriented personal computer market and quickly became a de facto industry standard due to its open architecture, which allowed other companies to produce compatible hardware and software. This led to a massive ecosystem of "PC compatible" machines and applications, defining the personal computer industry for decades. The other options are significant IBM computers but do not fit the criteria of being the 'first successful mass-market personal computer' that set an industry standard in the context of personal computing:
- IBM System/360 (1964) was a groundbreaking mainframe family.
- IBM 701 (1952) was an early electronic general-purpose computer primarily for scientific and defense applications.
- IBM 1401 (1959) was a popular transistor-based business computer, but not a personal computer.
5510
The concept of "time-sharing" in operating systems was a significant innovation of which generation?
Answer:
Third Generation
Time-sharing allowed multiple users to interact with a single computer simultaneously through different terminals. This was a major feature of third-generation operating systems and a crucial step toward interactive computing.