COLUMBIA, Mo.--(BUSINESS WIRE)--Mediacom Communications today unveiled its fastest ever residential broadband offering in several Missouri communities. The new 1-Gig Internet service is available to all homes passed by Mediacom’s network in Boone, Cole and Callaway Counties including the cities of Columbia, Jefferson City, and Holts Summit. With up to 1 gigabit per second download speeds, the latest advanced product from Mediacom offers area residents one of the fastest Internet experiences on