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.
Print Email. The Appalachian Mountains, often called the Appalachians, are a system of mountains in eastern North America. The Appalachians first formed roughly 480 million years ago during the Ordovician Period, and once reached elevations similar to those of the Alps and the Rocky Mountains before they were eroded.