Information: - U-boat is the anglicised version of the German word U-Boot , a shortening of Unterseeboot, literally "undersea boat". While the German term refers to any submarine, the English one (in common with several other languages) refers specifically to military submarines operated by Germany, particularly in the First and Second World Wars. Although at times they were efficient fleet weapons against enemy naval warships, they were most effectively used in an economic warfare role (commerce raiding), enforcing a naval blockade against enemy shipping. The primary targets of the U-boat campaigns in both wars were the merchant convoys bringing supplies from Canada, the British Empire, and the United States to the United Kingdom and (during the Second World War) to the Soviet Union and the Allied territories in the Mediterranean. - A submarine is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term most commonly refers to a large, crewed vessel. It is also sometimes used historically or colloquially to refer to remotely operated vehicles and robots, as well as medium-sized or smaller vessels, such as the midget submarine and the wet sub. Used as an adjective in phrases such as "submarine cable", "submarine" means "under the sea". The noun "submarine" evolved as a shortened form of "submarine boat" (and is often further shortened to "sub"). For reasons of naval tradition, submarines are usually referred to as "boats" rather than as "ships", regardless of their size. - The term warhead refers to the explosive or toxic material that is delivered by a missile, rocket, or torpedo. - Commerce raiding is a form of naval warfare used to destroy or disrupt logistics of the enemy on the open sea by attacking its merchant shipping, rather than engaging its combatants or enforcing a blockade against them. It is also known, in French, as guerre de course (literally, "war of the chase") and, in German, Handelskrieg ("trade war"), from the nations most heavily committed to it historically as a strategy. - The modern torpedo is a self-propelled weapon with an explosive warhead, launched above or below the water surface, propelled underwater towards a target, and designed to detonate either on contact with its target or in proximity to it. - A deck gun is a type of naval artillery mounted on the deck of a submarine. Similar unenclosed guns are often found on surface ships as secondary or defensive armament, although the term "deck gun" normally refers only to submarine-mounted guns. Most submarine deck guns were open, however a few larger submarines placed these guns in a turret. - The Type XIV U-boat was a modification of the Type IXD , designed to resupply other U-boats . They were nicknamed '' Milchkuh / Milchkuhe ( pl . ) '' ( milk cows ) . Due to its large size , the Type XIV could resupply other boats with 613 t ( 603 long tons ) of fuel , 13 t ( 13 long tons ) of motor oil , four torpedoes , and fresh food that was preserved in refrigerator units . In addition , the boats were equipped with bakeries , in order to provide the luxury of fresh bread for crews being resupplied . They had no torpedo tubes or deck guns , only anti-aircraft guns . In 1942 , the milk cows allowed the smaller Type VIIC boats to raid the American coast during the '' Second Happy Time '' of the Battle of the Atlantic . The milk cows were priority targets for Allied forces , as sinking one milk cow would effectively curtail the operations of several regular U-Boats and force them to return home for supplies . Ultra intercepts provided information concerning sailing and routing , and this , coupled with improved Allied radar and air coverage in the North Atlantic , eliminated most of them during 1943 . By the end of the war all ten had been sunk . Milk cow duty was especially hazardous ; 289 sailors were killed out of an estimated complement of 530 -- 576 men . - The British Empire comprised the dominions, colonies, protectorates, mandates and other territories ruled or administered by the United Kingdom and its predecessor states. It originated with the overseas possessions and trading posts established by England between the late 16th and early 18th centuries. At its height, it was the largest empire in history and, for over a century, was the foremost global power. By 1913, the British Empire held sway over 412 million people, % of the world population at the time, and by 1920, it covered , % of the Earth's total land area. As a result, its political, legal, linguistic and cultural legacy is widespread. At the peak of its power, the phrase "the empire on which the sun never sets" was often used to describe the British Empire, because its expanse around the globe meant that the sun was always shining on at least one of its territories. - A blockade is an effort to cut off supplies, war material or communications from a particular area by force, either in part or totally. A blockade should not be confused with an embargo or sanctions, which are legal barriers to trade. It is also distinct from a siege in that a blockade is usually directed at an entire country or region, rather than a fortress or city. While most blockades historically took place at sea, blockade is still used on land to prevent someone coming into a certain area. What is the relationship between 'german type xiv submarine' and 'submarine'?
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Answer: subclass of

Information: - Presto Studios was a computer game development company of the 1990s, especially famous for its award-winning "The Journeyman Project" series and the 2001 sequel to Cyan's hit Myst series, "". - Myst is a graphic adventure puzzle video game designed and directed by the brothers Robyn and Rand Miller. It was developed by Cyan, Inc., published by Brderbund, and initially released on the Macintosh platform on September 24, 1993. Remakes and ports of the game have been released for platforms including Sega Saturn, PlayStation, 3DO, Microsoft Windows, Atari Jaguar CD, CD-i, AmigaOS, PlayStation Portable, Nintendo DS, iOS, OS X, and Android. - Stephen King 's F13 is a collection of casual games developed by Presto Studios and released in 2000 by Blue Byte Software . The title F13 is a reference to the non-existent function key on standard PC keyboards . ( Although an F13 key exists on Macintosh keyboards in the form of a screen capture button . ) What is the relationship between 'stephen king's f13' and 'microsoft windows'?
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Answer:
platform