IV. Match each numbered item with the most closely related lettered item. (There are 10 questions, each for 2 points, in total of 20 points.)

A. motherboard B. hardware C. binary numbering system D. RAM E. software license F. database G. compiler H. parallel processing I. backup J. source code

____1. A collection of related data that is stored in a manner enabling information to be retrieved as needed. ____2. The main circuit board of a computer, located inside the system unit, to which all computer system components connect. ____3. A processing technique that uses multiple processors or processing cores simultaneously, usually to process a single job as fast as possible. ____4. The physical parts of a computer system, such as the keyboard, monitor, printer, and so forth. ____5. The numbering system that represents all numbers using just two symbols (0 and 1). ____6. Chips connected to the motherboard that provide a temporary location for the computer to hold data and program instructions while they are needed. ____7. A duplicate copy of data or other computer content for use in the event that the original version is destroyed.