Computer Pioneers — Set 2

Correct Answer: C. Tim Berners-Lee

• **Tim Berners-Lee** = He is credited with inventing the World Wide Web in **1989** while working at CERN, designing its core components like HTTP, HTML, and URLs. • **1989** — This year marks the proposal of the World Wide Web by Berners-Lee, aiming to create an information management system that would evolve into the global web we know today. • 💡 Wrong-option analysis: Marc Andreessen: Co-authored Mosaic, one of the first widely used web browsers; Robert Cailliau: Collaborated with Berners-Lee at CERN on the Web project; Vint Cerf: Co-developer of TCP/IP protocols, often called a 'Father of the Internet'.

Correct Answer: B. Jack Kilby

• **Jack Kilby** = He is known for inventing the Integrated Circuit (IC) in **1958** while working at Texas Instruments, independently developing it alongside Robert Noyce. • **1958** — Kilby demonstrated the first working integrated circuit in this year, a pivotal invention that miniaturized electronics and laid the foundation for modern microprocessors. • 💡 Wrong-option analysis: Gordon Moore: Co-founder of Intel and proposed Moore's Law, not the IC itself; Seymour Cray: Designed supercomputers; Robert Noyce: Co-inventor of the integrated circuit (at Fairchild Semiconductor) and co-founder of Intel.

Correct Answer: B. Steve Wozniak

• **Steve Wozniak** = He co-founded Apple Inc. with Steve Jobs and was the primary designer and builder of the Apple I and Apple II computers. • **Apple I** — Wozniak single-handedly designed this groundbreaking personal computer in **1976**, making it a key product that launched Apple Inc. • 💡 Wrong-option analysis: Bill Gates: Co-founder of Microsoft; Ronald Wayne: Early partner in Apple Inc. who quickly sold his shares; Paul Allen: Co-founder of Microsoft with Bill Gates.

Correct Answer: B. Claude Shannon

• **Claude Shannon** = He is known as the 'Father of Information Theory' for his groundbreaking work on quantifying information and its reliable transmission. • **1937** — In his master's thesis this year, Shannon demonstrated that Boolean logic could be applied to switching circuits, forming the basis of digital circuit design. • 💡 Wrong-option analysis: Alan Turing: 'Father of Modern Computing' and theoretical computer science; Norbert Wiener: Pioneer in cybernetics; Vannevar Bush: Pioneer of analog computers and proposed the Memex.

Correct Answer: C. Ted Hoff

• **Ted Hoff** = He was the primary architect who conceived the idea of a general-purpose processor on a single chip, leading to the development of the Intel **4004** microprocessor. • **1969** — Hoff conceived the revolutionary idea of a single-chip processor in this year, which would eventually become the Intel 4004, transforming computing. • 💡 Wrong-option analysis: Stanley Mazor: Contributed to the architectural design of the Intel 4004; Masatoshi Shima: A Japanese engineer who contributed to the design of the Intel 4004; Federico Faggin: Led the physical design and implementation team for the Intel 4004.

Correct Answer: B. John Backus

• **John Backus** = John Backus led a team at IBM to create a language that was easier for scientists to use than assembly. • **1957** — John Backus led a team at IBM to create FORTRAN, allowing programmers to write code using mathematical formulas. • 💡 Wrong-option analysis: Bjarne Stroustrup: created C++; James Gosling: created Java; Dennis Ritchie: created C programming language.

Correct Answer: A. Dennis Ritchie

• **Dennis Ritchie** = Dennis Ritchie created C at Bell Labs, which became the foundation for most modern software and operating systems. • **Turing Award** — Dennis Ritchie received the Turing Award for his contributions to computer science theory. • 💡 Wrong-option analysis: Linus Torvalds: created the Linux kernel; Ken Thompson: co-developed Unix with Ritchie but not C; Richard Stallman: founded the Free Software Movement.

Correct Answer: A. Richard Stallman

• **Richard Stallman** = Richard Stallman launched the GNU Project to create a completely free Unix-like operating system. • **1983** — Richard Stallman launched the GNU Project, and he authored the GNU General Public License (GPL). • 💡 Wrong-option analysis: Eric Raymond: a prominent advocate for open source software; Ian Murdock: founded the Debian Linux project; Linus Torvalds: created the Linux kernel.

Correct Answer: A. Linus Torvalds

• **Linus Torvalds** = Linus Torvalds released the first version of the Linux kernel as a hobby project. • **1991** — Linus Torvalds released the first version of the Linux kernel, which now powers the majority of the world's internet infrastructure. • 💡 Wrong-option analysis: Mark Shuttleworth: founder of Ubuntu Linux; Bill Joy: co-founder of Sun Microsystems; Andrew Tanenbaum: created MINIX, which inspired Linux.

Correct Answer: B. Blaise Pascal

• **Blaise Pascal** = Blaise Pascal built the 'Pascaline' to help his father with tax calculations. • **1642** — Blaise Pascal invented the 'Pascaline', which could perform addition and subtraction directly using gears and wheels. • 💡 Wrong-option analysis: Rene Descartes: French philosopher and mathematician; Gottfried Leibniz: developed the 'Stepped Reckoner' later; Isaac Newton: English mathematician and physicist.