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 satellites were a series of space vehicles sent up into space by the Soviets. Sputnik 1 was the first artificial satellite, sent up in October 1957, really just to test the feasibility of a man made satellite. Sputnik 1 stayed in low orbit around the earth for 3 months before re-entering and burning up through the earths atmosphere. Further Sputnik vehicles took animals and men into space, or took probes to Venus and Mars. .