10 most difficult computers riddles A list of ten (out of 34) computers related questions that are the most often answered incorrectly Computers quiz Who perpetrated the "biggest military computer hack of all time" in 2002?Gary McKinnon . McKinnon was accused of hacking into 97 United States military and NASA computers. McKinnon states that he was merely looking for evidence of free energy suppression and a cover-up of UFO activity and other technologies potentially useful to the public. Web and print media across the UK ran a campaign to prevent Gary McKinnon's extradition to the U.S.very hard 18% Gary McKinnon Gary McKinnon 18%Steven Raymond Steven Raymond 20%Kevin PaulsenKevin Paulsen31%Chris ZboralskiChris Zboralski29%Created by: Tschuka . Statistics based on 132 answers in 2 languages »computer science riddles » When was the first computer created and what was its name?In 1939 r - Atanasoff-Berry ABC. Atanasoff and Berry's computer work was not widely known until it was rediscovered in the 1960s, amidst conflicting claims about the first instance of an electronic computer. At that time ENIAC, that had been created by John Mauchly and J. Presper Eckert, was considered to be the first computer in the modern sense, but in 1973 a U.S. District Court invalidated the ENIAC patent and concluded that the ENIAC inventors had derived the subject matter of the electronic digital computer from Atanasoff very hard 21% in 1945 r - Eniacin 1945 r - Eniac34%in 1943 r - Colossus in 1943 r - Colossus 27%in 1939 r - Atanasoff-Berry ABCin 1939 r - Atanasoff-Berry ABC21%in 1941 - Zusego Z3 machinein 1941 - Zusego Z3 machine16%Created by: Tschuka . Statistics based on 173 answers in 2 languages »computer science riddles » Where does the symbol @ come from?From Latin. The sign comes from a Latin ligature replacing in the medieval and Renaissance commercial manuscripts the word "at" - and denoting the recipient of the parcel.He first appeared in 1448 in a document with a register of wheat deliveries from the Kingdom of Castile to the Kingdom of Aragón.very hard 24% from Arabicfrom Arabic17%from Greekfrom Greek13%from Latinfrom Latin24%this symbol was created for the needs of e-mailthis symbol was created for the needs of e-mail45%Created by: Tschuka . Statistics based on 200 answers in 2 languages »internet riddles » Who is credited as the first computer programmer?Ada Lovelace. She was an English mathematician and writer, chiefly known for her work on Charles Babbage's proposed mechanical general-purpose computer, the Analytical Engine. She was the first to recognise that the machine had applications beyond pure calculation, and published the first algorithm intended to be carried out by such a machine.very hard 25% Ada LovelaceAda Lovelace25%Charles BabbageCharles Babbage43%Herman HollerithHerman Hollerith18%Konrad Zuse Konrad Zuse 12%Created by: Tschuka . Statistics based on 132 answers in 2 languages »computer science riddles » This is Atari Portfolio, the first PDA compatible with PCs from 1989. How long did it work on batteries?2 weeks. Powered by three AA fingers, this tiny computer could work up to 2 weeks. Built on the basis of the 80C88 processor with 4.91 MHz frequency, it had a text-based operating system compatible with DOS 2.0 and a set of built-in office applications.very hard 25% 20 minutes20 minutes36%2 hours2 hours26%20 hours20 hours12%2 weeks2 weeks25%Created by: Tschuka . Statistics based on 511 answers in 2 languages »technology riddles » What was the first computer virus in the DOS system?Brain virus. Brain is the industry standard name for a computer virus that was released in its first form in January 1986 and is considered to be the first computer virus for MS-DOS. It infects the boot sector of storage media formatted with the DOS File Allocation Table (FAT) file system. Brain was written by brothers, Basit Farooq Alvi and Amjad Farooq Alvi, from Lahore, Punjab, Pakistan.very hard 26% melissa virusmelissa virus8%Storm Worm virusStorm Worm virus22%I Love You virusI Love You virus41%Brain virusBrain virus26%Created by: Tschuka . Statistics based on 281 answers in 2 languages »computer science riddles » The inventor of the computer mouse is ...Douglas Engelbart. The first computer mouse was conceived of in the early 1960’s by Douglas Engelbart , then a Director of Augmentation Research Center (ARC) at Stanford Research Institute (SRI), in Menlo Park, California. very hard 31% John KemenyJohn Kemeny21%Fernando CorbatóFernando Corbató16%Dennis RitchieDennis Ritchie30%Douglas EngelbartDouglas Engelbart31%Created by: Tschuka . Statistics based on 157 answers in 2 languages »computer science riddles » the ancestor of the Internet was ...Arpanet. The ARPANET project led to the development of protocols for internetworking, by which multiple separate networks could be joined into a single network of networks. ARPANET development began with two network nodes which were interconnected between the Network Measurement Center at the University of California, Los Angeles in 1969very hard 32% AlohanetAlohanet11%ArpanetArpanet32%UsenetUsenet28%BitnetBitnet27%Created by: Tschuka . Statistics based on 243 answers in 2 languages »computer science riddles » What type of printers are typically used in cash registers?Thermal printer. Registers typically use thermal printers to print receipts, although older dot matrix printers are still in use at some retailers. Thermo-sensitive coating used in thermal paper is sensitive to incidental heat, abrasion, friction (which can cause heat, thus darkening the paper), light (which can fade printed images), and water. very hard 33% Inkjet printerInkjet printer12%Thermal transfer printerThermal transfer printer23%Thermal printerThermal printer33%Laser printerLaser printer30%Created by: Tschuka . Statistics based on 181 answers in 2 languages »computer science riddles » In 1982, the Personal Computer became the laureate of a prestigious award ...Time Person of the Year. Person of the Year is an annual issue of the United States news magazine Time that features and profiles a person, a group, an idea, or an object that "for better or for worse... has done the most to influence the events of the year". In 1982 denoted "Machine of the Year" to herald the dawn of the Information Age. very hard 35% Albert Einstein World Award of ScienceAlbert Einstein World Award of Science22%Time Person of the YearTime Person of the Year35%Turing AwardsTuring Awards26%Grace Murray Hopper AwardsGrace Murray Hopper Awards16%Created by: Tschuka . Statistics based on 293 answers in 2 languages »awards riddles » Play computers quiz and see all the questions.