Tag: general knowledge

Ray Tomlinson implemented the first email system on ARPANET in 1971 and chose the "@" symbol in 1972 to separate the user name from the host computer. He picked it because it was a rarely used character on keyboards and made logical sense (username @ host, read as "user at host"). The claimed answer (A - 1972) is correct. 1963 is too early (email didn't exist then), 1978 and 1982 are too late.

Intel's headquarters is in Santa Clara, California, in the heart of Silicon Valley. Intel was founded in 1968 and has been headquartered in Santa Clara since its founding. The claimed answer (C - Santa Clara) is correct. Redmond is where Microsoft is located, Tucson has an Intel major manufacturing facility, and Richmond is unrelated to Intel's headquarters.

Ken Thompson co-created UNIX with Dennis Ritchie at Bell Labs in 1969. Thompson wrote the original version of UNIX, and Ritchie later developed the C programming language to rewrite UNIX. Bjarne Stroustrup created C++, Steve Wozniak co-founded Apple, and Niklaus Wirth created Pascal and other programming languages. The claimed answer (C - Ken Thompson) is correct.

This is a duplicate of question 12053. Yahoo was founded in 1994 by David Filo and Jerry Yang, two electrical engineering graduate students at Stanford University. They originally created "Jerry and David's Guide to the World Wide Web" before renaming it Yahoo. The claimed answer (B) is correct. The other pairs listed created UNIX, TCP/IP, and AOL/Amazon respectively.

This is a duplicate of question 12054. According to the original Red Book CD standard developed by Philips and Sony, standard audio CDs hold 74 minutes of audio. This specification was chosen because it could accommodate Beethoven's Ninth Symphony. Later technology enabled longer discs, but the original 1979 specification was 74 minutes. The claimed answer (A) is correct.

In the Harry Potter universe, Incendio is the spell used to conjure flames and start fires. It's a basic spell taught to Hogwarts students and is commonly used to ignite fireplaces for Floo Powder travel. The spell is Latin-based, from "incendium" meaning fire or burning. The claimed answer (B - Incendio) is correct. The other options are either misspelled versions or not actual fire spells.

Furnunculus is the curse in Harry Potter that causes boils to erupt all over the victim's body. It's a jinx rather than a powerful dark curse, and Harry and Ron use it on each other in the books. The spell name is similar to "furuncle," the medical term for a boil. The claimed answer (D - Furnunculus) is correct. The other options are misspelled variations.

Densaugeo is the curse in Harry Potter that causes the victim's teeth to grow rapidly at an alarming rate. Hermione casts this spell on Harry in the fourth book, causing his teeth to grow past his chin, though Madam Pomfrey shrinks them back. The name likely combines "dens" (Latin for tooth) with "augeo" (Latin for I increase/grow). The claimed answer (C - densaugeo) is correct. Rictusempra causes uncontrollable laughter, Tarantallegra causes dancing, and Repero isn't a known spell.

Petrificus Totalus is the Full Body-Bind Curse in Harry Potter that instantly freezes the victim's entire body, causing them to stiffen and collapse. Locomotor mortis is the Leg-Locker Curse, tarantallegra makes opponents dance uncontrollably, and rictusempra is the Tickling Charm.

Tarantallegra is the Dancing Feet Spell that forces the victim's legs to start dancing uncontrollably. Rictusempra is the Tickling Charm, mobiliarbus is used to move objects, and serpensortia conjures a snake.