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.
And you might be surprised to learn that while NASA helped build the first satellite telescope, it was the United Kingdom who sent the first telescope into space. In April 1962, the U.K. sent Ariel 1 into orbit. It has the distinction of not just being the first space telescope launched, but also the first international satellite, as it was a collaborative effort between the United States and Britain.