Intro to Information Technology Final Exam with 100% correct answers

Define input correct answersAny data or instructions used by a computer What is QWERTY? correct answersThis name reflects the keyboard layout by taking the letters of the first six alphabetic characters found on the top row of keys How do you use a toggle key? Identify an example of a toggle key. correct answersA key that turns a feature on/off (caps lock) How does an optical mouse function? correct answersA type of mouse that emits and senses light to detect mouse movement How does a trackball function? correct answersSimilar to that of a traditional computer mouse, the trackball mouse is an input device and functions in the same way, except that the trackball mouse remains stationery and does not move about on the operating surface. The trackball mouse configuration has a small solid ball and typically two buttons placed strategically to allow effective pointing ability without the need of excessive arm and wrist movement. Define pixel correct answersSmallest unit on the screen that can be turned on and off and made different shades What is meant by the phrase Active display area? How is it measured? correct answersThe diagonal length of a monitors viewing area. Common sizes 15,17,19,21,22 Define OMR correct answersIt senses the presence or absence of a mark. (The thing used to score scantrons) Define dot pitch and how it affects screen quality correct answersThe distance between each pixel. The lower the dot pitch, the clearer the picture. The shorter the distance between pixels the clearer the image.