Mixed Topics: Harry Potter & Computer Basics

The .MOV extension is Apple's QuickTime format for storing video and audio files. It's commonly used for movie files and can contain multiple tracks including video, audio, and subtitles. Image files use extensions like .jpg or .png, audio files use .mp3 or .wav, and documents use .doc or .pdf.

The .TXT extension universally denotes plain text files containing unformatted characters. These files store simple text without special formatting, fonts, or embedded graphics. Image files use extensions like .jpg, .png, or .gif, while audio files use .mp3, .wav, or .aac.

Fenrir Greyback is the werewolf Death Eater who bit Remus Lupin, causing his lycanthropy. Greyback was known for infecting children and was recruited by Voldemort to spread werewolfism. Severus Snape and Igor Karkaroff were Death Eaters but not werewolves, while Antonin Dolohov was a different Death Eater.

Yahoo was founded in 1994 by David Filo and Jerry Yang, two Stanford graduate students who created a directory of websites called "Jerry and David's Guide to the World Wide Web." The other pairs are incorrect: Dennis Ritchie and Ken Thompson created Unix, Vint Cerf and Robert Kahn developed TCP/IP, and Steve Case founded AOL while Jeff Bezos founded Amazon.

Harry used the Sectumsempra spell on Draco Malfoy in the bathroom, which Draco had snuck into to mourn Myrtle's death. Sectumsempra, which Harry found in the Half-Blood Prince's book, caused deep slashing wounds across Draco's body and nearly killed him. Serpensortia conjures a snake, Rictusempra causes laughter, and Muffliato muffles sound.

Scorpius Hyperion Malfoy is Draco Malfoy's son, revealed in the epilogue of Harry Potter and the Deathly Hallows and featured prominently in Harry Potter and the Cursed Child. Lucius was Draco's father, not his son. Weatherby is a nickname Percy Weasley received from Molly Weasley, and Hugo is Ron and Hermione's son.

Sort is the computer operation that arranges data in a specified order - either numerically or alphabetically. Sorting organizes information making it easier to search, analyze, and display. Crop cuts images, report generates summaries, and record saves data - none involve ordering.

Cedric Diggory faced the Swedish Short-Snout dragon during the first task of the Triwizard Tournament. Each champion drew a different dragon model: Fleur drew the Common Welsh Green, Viktor Krum drew the Chinese Fireball, and Harry drew the Hungarian Horntail. The Swedish Short-Snout is known for its silvery-blue color and preference for living in wild, uninhabited areas.

Viktor Krum's wand is made of hornbeam wood with a dragon heartstring core, making it 10¼ inches long and quite rigid. Dragon heartstring is one of the three supreme wand cores along with phoenix feather and unicorn hair. Veela hair is not a standard wand core - it's what Fleur Delacour's wand actually contains (which is unusual).

WAN (Wide Area Network) connects networks over large geographical distances using dedicated high-speed communication lines. The Internet is the largest WAN. LAN (Local Area Network) covers small areas like a building, URL is a web address, and World Wide Web is a system of interlinked documents accessed via the Internet.

Rowena Ravenclaw's diadem Horcrux was destroyed when Vincent Crabbe unleashed Fiendfyre (cursed fire) in the Room of Requirement during the Battle of Hogwarts. The Fiendfyre incinerated the diadem - the only way to destroy this particular Horcrux. Basilisk venom (via Gryffindor's sword) destroys Horcruxes but was not used on the diadem, and the Killing Curse cannot destroy Horcruxes.

The CPU (Central Processing Unit) is indeed synonymous with microprocessor in modern computers. The microprocessor is the integrated circuit that contains the CPU - it's the physical implementation of the CPU on a single chip. 'Micro chip' is too vague, while 'Execute' and 'Decode' are individual CPU operations, not the CPU itself.

Draco Malfoy was tasked with two assassination attempts on Dumbledore: 1) Using opal necklace to curse Katie Bell (intended for Dumbledore), and 2) poisoning mead in Slughorn's office (also intended for Dumbledore). Both attempts failed, with Dumbledore eventually drinking the poisoned mead but surviving thanks to Harry. The cursed ring was already used by Dumbledore himself to destroy the Horcrux, and it injured his hand.

The McDonald's screensaver was a documented hoax virus warning that circulated via email in the 1990s. It warned that a screensaver from McDonald's would erase files if opened - this was completely fake and designed to spread fear. The other options (Alien.worm, Merry Xmas, Adolph) are not documented as hoax viruses.

Marvolo Gaunt was Voldemort's maternal grandfather. Voldemort's mother was Merope Gaunt, daughter of Marvolo Gaunt. The Peverells were distant ancestors of the Gaunt family (through the Cadmus Peverell line), but Marvolo himself was not referred to as a 'Descendant of Peverells' - he was a Gaunt. Voldemort's father was Tom Riddle Sr., a Muggle.

In Harry Potter and the Order of the Phoenix, the prophecy about Harry and Voldemort was hidden deep within the Department of Mysteries at the Ministry of Magic. The Death Eaters believed the prophecy contained crucial information about how to defeat Harry, so the Order (specifically Sirius Black and other members) moved it there for safekeeping. The Chamber of Secrets is unrelated to the prophecy, and the Department of Secrets does not exist in the wizarding world.

A file server is a computer specifically dedicated to storing and managing files that can be accessed by other computers on a network. It provides centralized storage, backup, and file sharing capabilities for all connected devices. The other options are incorrect: clip art refers to pre-made images, a motherboard is the main circuit board in a computer, and peripherals are external devices like keyboards and printers.

OS/2 (Operating System/2) was an operating system developed jointly by IBM and Microsoft in the 1980s. After the partnership ended, IBM continued developing OS/2 on its own. The other options are incorrect: Windows is produced by Microsoft, DOS was created by Microsoft (and licensed to IBM as PC-DOS), and UNIX originated at Bell Labs (though IBM has its own UNIX variant called AIX). Note: The question writes it as "OS-2" but the correct name is "OS/2" - this is a minor formatting issue.

Bank of America was originally founded as the Bank of Italy in 1904 by Amadeo Giannini to serve immigrants in San Francisco. The name was changed to Bank of America in 1930 as the bank expanded its reach beyond the Italian-American community.