Top 10 computer science factsComputer science quiz
Ubuntu is the most popular Linux distribution, developed by Canonical Software owned by Mark Shuttleworth. What else is Mark famous for?
Being an astronaut. Shuttleworth founded Thawte in 1995, which specialized in digital certificates and Internet security. His South African company flourished thanks to American ban on export of cryptography, which limited foreign operations of US cryptographic companies. Mark sold Thawte to VeriSign in December 1999, earning US$ 575 million (he aged 26 then). Later he became the second space tourist in the world, and founded Canonical.
What material is computer's processor made of?
Single crystal silicon is used in the fabrication of semiconductors. On the quantum scale that microprocessors operate on, the presence of grain boundaries would have a significant impact on the functionality of field effect transistors by altering local electrical properties. Therefore, microprocessor fabricators have invested heavily in facilities to produce large single crystals of silicon.
What makes this teapot famous?
Its 3D model is a geometric primitive in many graphic applications. The Utah teapot (or the Newell teapot) is one of the most recognized 3D computer models. It's used as a reference in tests, but also as an inside joke for graphic designers. The model was created in 1975 by Martin Newell.
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.
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.
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.
What is the Turing Machine made of?
It doesn't (physically) exist. Turing Machine is an abstract model of a computer, invented by English mathematician Alan Turing in 1936. To date, it's a basic model used for examinations of algorithms' properties.
What is ten to the power of one hundred called?
Googol. The name of the Google search engine was created by mistake of its creator, L. Page, who meant googol.
When was the first electronic computer created and what was its name?
In 1939 - 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 electronic computer. At that time ENIAC, created by John Mauchly and J. Presper Eckert, was considered to be the first computer in the modern sense. In 1973 a U.S. District Court invalidated the ENIAC patent and concluded that the ENIAC inventors had derived the design of the electronic digital computer from Atanasoff 's work.
What does "USB" stand for?
Universal Serial Bus. USB - short for Universal Serial Bus, is an industry standard that defines cables, connectors and communications protocols for connection, communication, and power supply between computers and devices.