Which of the following are the components of a projector?
A. Optic system B. Displays C. Electron beam D. Both A and B
Which of the following are portable projectors?
A. Conference room projectors B. Fixed installation projectors C. Ultralight projectors D. All of the above
Which of the following devices are included in a terminal?
A. Monitor and printer B. Printer and keyboard C. Keyboard and monitor D. All of the above