History of Computers - Communication Satellites
Communication satellites, as the name suggests, help people communicate with one another. The first communication satellite, or COMSAT, was launched as early as 1957. Later, communication satellites promoted competition between countries, and now serve a greater purpose of helping people communicate around the world. They can also accomplish more, and are specialized for a certain job.
An Example of a COMSAT
Overview
The first communication satellite launched was the "Sputnik 1" of Russia. On board was a radio transmitter which read two different frequencies: 20.005 and 40.002MHz. Soon after, the "Space Race" ensued, and multiple other satellites went to space as well. Now, satellites have a more practical role, and can be used for day to day things. There are two main types of satellites: Geostationary, which orbit the earth to appear as though they are stationary and Low Orbiting satellites, which also travel around the earth, but stay very close by.[1] Satellites also provide weather forecasts, which are useful for everybody. Some have even taken to using satellite news.[2]
Significance
Communication satellites are one of the most significant advances in technology, and without them, communication with others around the world would be made much harder. As stated earlier, weather forecasts are provided by satellites, and these can determine one's schedule for the day. Also, satellites such as the direct broadcasting satellite, that transmit signals to satellites on earth, help the millions of people who watch television.[3] In fact, one may not think of it, but a lot of what one does in his or her daily lives is completely dependent on communication satellites. They are the reason cellphones and the like work; these are vital objects in today's business world. Also, there is satellite radio. Satellite radio and television provide entertainment, and also are an overlooked part of our lives. All in all, communication satellites are very important.[4]
