Summary

34 IT Essentials: PC Harware and Software Companion Guide■■S-Video has a four-pin connector and provides analog video signals.Component/RGB has three shielded cables (red, green, and blue) with RCA jacks andprovides analog video signals.Figure 1-19 shows the video ports on a video card.Figure 1-19Video PortsS-VideoVGADVIIdentify the Names, Purposes, andCharacteristics of Input DevicesAn input device is used to enter data or instructions into a computer. Here are some examplesof input devices:■■■■■Mouse and keyboardDigital camera and digital video cameraBiometric authentication deviceTouch screenScannerThe mouse and keyboard are the two most commonly used input devices. The mouse isused to navigate the graphical user interface (GUI). The keyboard is used to enter text commandsthat control the computer.Digital cameras and digital video cameras, shown in Figure 1-20, create images that can bestored on magnetic media. The image is stored as a file that can be displayed, printed, oraltered.