By the 1830s, fossil succession had been studied to an increasing degree, such that the broad history of life on Earth was well understood, regardless of the debate over the names applied to portions of it, and where exactly to make the divisions.
Computer definition, a programmable electronic device designed to accept data, perform prescribed mathematical and logical operations at high speed, and display the results of these operations. Mainframes, desktop and laptop computers, tablets, and smartphones are some of the different types of computers. Compare analog computer, digital computer.
A PC may refer to any of the following: 1. Alternatively referred to as a Desktop and single-user computer, PC is short for Personal Computer and is a term coined by Ed Roberts when he introduced the MITS Altair 8800. PC is often used in the computer industry to describe an IBM or IBM-compatible computer even though the term PC can refer to any personal computer including an Apple Macintosh computer. The picture shows the Dell Precision 390 computer courtesy of Dell Inc. and an example of a Desktop PC.