microcomputer. n. 1. (Computer Science) a small computer in which the central processing unit is contained in one or more silicon chips. Sometimes shortened to: micro.
Share Appalachian Mountains. The Appalachian Mountains extend from Alabama to Newfoundland, and westward from the Piedmont to the Midwest. Elevations range as high as 6,684 feet in North Carolina, 5,729 feet in Virginia, and 4,861 feet in West Virginia.
The Appalachian Mountains are nearly 500 million years old. They  were formed by a shift in the tectonic plates in that area,  creating a new subduction zone.