Computer Pioneers — Set 4
Inventions · कंप्यूटर अग्रदूत · Questions 31–40 of 50
Who is credited with creating the first mechanical computer, the 'Analytical Engine'?
Correct Answer: D. Charles Babbage
• **Charles Babbage** = is credited with conceiving the 'Analytical Engine' as a general-purpose programmable machine. • **1800s** — His visionary designs for the Analytical Engine were far ahead of the engineering capabilities of that era. • 💡 Wrong-option analysis: Alan Turing: known for the 'Universal Turing Machine' and theoretical computer science; John von Neumann: influential in computer architecture design; Ada Lovelace: often considered the first computer programmer for her work on Babbage's machines.
Which computer pioneer developed the concept of the 'Universal Turing Machine'?
Correct Answer: A. Alan Turing
• **Alan Turing** = developed the theoretical concept of the 'Universal Turing Machine', a foundational model for computation. • **One machine** — His idea proved that a single machine could be programmed to perform a variety of tasks, underpinning modern programmable computers. • 💡 Wrong-option analysis: John von Neumann: known for the von Neumann architecture; Grace Hopper: a pioneer in developing compiler technology and COBOL; Claude Shannon: known as the 'father of information theory'.
Who founded the 'GNU Project' to promote free and open-source software?
Correct Answer: A. Richard Stallman
• **Richard Stallman** = founded the 'GNU Project' to advocate for free and open-source software. • **Free Software Foundation** — He created this foundation to support ethical principles of user freedom to study, share, and modify software. • 💡 Wrong-option analysis: Ken Thompson: co-creator of Unix operating system; Linus Torvalds: creator of the Linux kernel; Bill Joy: co-founder of Sun Microsystems and lead developer of BSD Unix.
Who is known for inventing the COBOL programming language for business applications?
Correct Answer: B. Grace Hopper
• **Grace Hopper** = is known for inventing the COBOL programming language for business applications. • **1959** — She was a key figure in the committee that designed COBOL, aiming for a language resembling English. • 💡 Wrong-option analysis: Jean Sammet: a developer of FORMAC and pioneer in programming languages; Karen Spärck Jones: known for her work on inverse document frequency (IDF); Ada Lovelace: often considered the first computer programmer.
Who invented the first electronic computer for solving linear equations, the ABC computer?
Correct Answer: D. John Atanasoff
• **John Atanasoff** = invented the first electronic computer for solving linear equations, known as the ABC computer. • **1930s** — He and Clifford Berry built the Atanasoff-Berry Computer (ABC), the first to use vacuum tubes and binary arithmetic. • 💡 Wrong-option analysis: Alan Turing: developed the theoretical 'Universal Turing Machine'; Howard Aiken: principal designer of Harvard Mark I; Konrad Zuse: built the world's first functional program-controlled computer, the Z3.
Who is the pioneer behind the invention of the Java programming language?
Correct Answer: B. James Gosling
• **James Gosling** = is the pioneer behind the invention of the Java programming language. • **'Write Once, Run Anywhere'** — He developed Java at Sun Microsystems with this goal, making it ideal for the early internet due to its portability. • 💡 Wrong-option analysis: Dennis Ritchie: co-creator of the C programming language and Unix; Anders Hejlsberg: lead architect of C# and Delphi; Bjarne Stroustrup: creator of the C++ programming language.
Which pioneer developed the first operating system for the IBM PC, known as PC-DOS?
Correct Answer: A. Bill Gates
• **Bill Gates** = and Microsoft developed the first operating system for the IBM PC, known as PC-DOS. • **1981** — Microsoft licensed QDOS and refined it for IBM, retaining rights to sell to other manufacturers, which led to Microsoft's global dominance. • 💡 Wrong-option analysis: Steve Jobs: co-founder of Apple Inc.; Tim Paterson: creator of QDOS (86-DOS), which Microsoft licensed; Gary Kildall: founder of Digital Research and creator of CP/M operating system.
Who is the inventor of the first high-level language, Plankalkül, in the 1940s?
Correct Answer: D. Konrad Zuse
• **Konrad Zuse** = invented the first high-level programming language, Plankalkül, in the 1940s. • **Z3** — He also built the world's first working programmable computer, demonstrating his pioneering role in computing. • 💡 Wrong-option analysis: Alonzo Church: known for lambda calculus, a foundation for functional programming; John Backus: leader of the team that invented Fortran; Alan Turing: developed the theoretical 'Universal Turing Machine'.
Who is considered the 'Father of the World Wide Web'?
Correct Answer: C. Tim Berners-Lee
• **Tim Berners-Lee** = is considered the 'Father of the World Wide Web'. • **1990** — While at CERN, he wrote the first web client and server and invented the URL system. • 💡 Wrong-option analysis: Vint Cerf: co-designer of the TCP/IP protocols, essential for the internet; Ted Nelson: coined the terms 'hypertext' and 'hypermedia'; Marc Andreessen: co-creator of the Mosaic web browser.
Who invented the first punch card tabulating machine used for the 1890 US Census?
Correct Answer: A. Herman Hollerith
• **Herman Hollerith** = invented the first punch card tabulating machine used for the 1890 US Census. • **IBM** — His company eventually merged with others to become International Business Machines, a major computer company. • 💡 Wrong-option analysis: Charles Babbage: conceived the Analytical Engine; William Burroughs: founder of Burroughs Corporation, a calculating machine company; Thomas Watson: former CEO of IBM, known for its growth.