ENV100H1 Lecture Notes - Lecture 16: Application Software, Inkjet Printing, Numeric Keypad

• School: UTSG
• Department: School of Environment
• Course: ENV100H1
• Professor: Simon Appolloni

Document Summary

8 binary digits combine to create one byte. Application software programs you use on the computer i. e. word. System software programs enable your computer"s hardware and software to work together. Qwerty keyboard, also dvorak keyboard most common used letter on home keys. Virtual laser keyboard transmit via bluetooth wireless connection. Numeric keypad, function keys, control key, window key, multimedia buttons. Cathode ray tube (crt) traditional computer monitor. Liquid crystal display (lcd) notebook/flat screen lighter and more energy efficient. Legacy technology example: crt technology that was once popular put no longer is. Monitors are composed of pixel each pixel has a red, blue and green sub pixel. 1600 x 1200 means 1600 vertical columns with 1200 pixels in each. Passive matric displays lcd less expensive fade over time. Active-matrix displays lcd individually charged pixels clearer, brighter, better viewing angle. Need to consider: viewing angle, contrast ratio, brightness, response time: printers: Impact printers tiny, hammer like keys that strike the paper.