Computer Pioneers — Set 3
Inventions · कंप्यूटर अग्रदूत · Questions 21–30 of 50
Who is credited with inventing the first e-mail system on the ARPANET in 1971?
Correct Answer: D. Ray Tomlinson
Ray Tomlinson chose the '@' symbol to separate the user's name from the machine's name. This standard made it possible to send messages to people on different computers. He sent the very first network email between two computers sitting side-by-side.
Which pioneer led the development of the Macintosh and the user-friendly Graphical User Interface (GUI)?
Correct Answer: A. Steve Jobs
Steve Jobs visited Xerox PARC and realized that the GUI would be the future of computing. He integrated the mouse and windows into the Lisa and later the Macintosh in 1984. This shift made computers accessible to people who were not technical experts.
Who is known as the 'Father of Supercomputing' for designing the fastest computers of his era?
Correct Answer: A. Seymour Cray
Seymour Cray founded Cray Research and designed the CDC 6600 and the Cray-1. His machines were used for complex tasks like weather forecasting and nuclear research. He prioritized speed and efficient cooling in his pioneering designs.
Which computer pioneer is the creator of the Python programming language?
Correct Answer: C. Guido van Rossum
Guido van Rossum released Python in 1991 with an emphasis on code readability and simplicity. The language was named after the comedy group 'Monty Python'. It has now become the most popular language for data science and artificial intelligence.
Who co-authored the TCP/IP protocols and is often called the 'Father of the Internet'?
Correct Answer: A. Vint Cerf
Vint Cerf and Bob Kahn designed the communication standards that allowed different networks to connect. Their work provided the technical architecture that supports the global internet today. He later served as an executive at Google to promote internet accessibility.
Which pioneer developed the first spreadsheet program, VisiCalc?
Correct Answer: A. Dan Bricklin
Dan Bricklin co-created VisiCalc in 1979, which turned the personal computer into a vital business tool. Before this, accountants had to perform complex calculations on paper manually. VisiCalc is often cited as the first 'killer app' for the Apple II computer.
Who invented the first programmable loom using punch cards, influencing early computer design?
Correct Answer: D. Joseph Marie Jacquard
Joseph Marie Jacquard created a mechanical loom in 1804 that used punch cards to control patterns. Babbage later adapted this concept to provide instructions for his Analytical Engine. This was the first practical application of binary-style data storage.
Which pioneer is known for 'Moore’s Law', predicting the growth of transistor density?
Correct Answer: D. Gordon Moore
Gordon Moore co-founded Intel and observed in 1965 that the number of transistors on a chip doubles roughly every two years. This prediction has guided the semiconductor industry for over five decades. It explains why technology becomes cheaper and more powerful so quickly.
Who invented the relational database model, which is the basis for SQL databases?
Correct Answer: C. E.F. Codd
Edgar F. Codd published a landmark paper in 1970 describing how data could be organized into tables. This model allowed for flexible data retrieval without needing to know how the data was physically stored. His work revolutionized how businesses manage information.
Who is the pioneer behind the 'Memex' concept, an early vision for the internet and hypertext?
Correct Answer: D. Vannevar Bush
Vannevar Bush wrote 'As We May Think' in 1945, proposing a device to store and link all human knowledge. Although the Memex was never built, it inspired later pioneers like Engelbart and Berners-Lee. He served as a key scientific advisor during World War II.