Computing Fundamentals Practice Questions with complete Solutions | Graded A+

USB Port - USB - A(n) ___ scanner uses radio frequencies to read the data stored in special tags. - RFID ___ technology can translate a scanned image into text that can be edited and formatted. - OCR A(n) ___ code, which appears as a square filled with dots and lines, is often used to direct a smartphone to open a specific web address. - QR The main component of a desktop computer is the ___, which is the case that houses the computer's critical parts, such as the processing and storage devices. - System Unit As the largest circuit board in a personal computer, the ___ contains a variety of slots, connectors, and plugs for hooking up all the other parts of a computer. - Mother Board The ___ port is used to connect almost all of today's external devices. - USB