Pertaining to how the characters in source code are translated into tokens that the compiler canunderstand.linkerA module that builds an executable, complete program from component machine code modules.The Java(TM) linker creates a runnable program from compiled classes.
Artificial satellites are used to study the Earth, other planets, to help us communicate, and even to observe the distant Universe. Satellites can even have people in them, like the International Space Station and the Space Shuttle. The first artificial satellite was the Soviet Sputnik 1 mission, launched in 1957. Since then, dozens of countries have launched satellites, with more than 3,000 currently operating spacecraft going around the Earth.
Sputnik 1 (/ËspÊtnÉªk/; Russian: ÑÐ¿ÑÑÐ½Ð¸Ðº-1 [ËsputnÊ²Éªk] Satellite-1, or Ð¿Ñ-1 [PS-1, i.e., Russian: Ð¿ÑÐ¾ÑÑÐµÐ¹ÑÐ¸Ð¹ ÑÐ¿ÑÑÐ½Ð¸Ðº-1, Prosteyshiy Sputnik-1, Elementary Satellite 1])[5] was the first artificial Earth satellite. The Soviet Union launched it into an elliptical low Earth orbit on 4 October 1957.