Up next in How to Understand Computers (59 videos)
Boost your computer know-how with these Howcast videos, which address frequently asked questions about how to use both PCs and Macs.
You Will Need
- Computer with an open port
- Second monitor
- VGA or DVI cord
- AGP or PCI video card (optional)
- DVI-to-VGA adapter (optional)
Find an open port
Look at the back of your computer and locate an available VGA or DVI port. The VGA or DVI cord from the second monitor will fit the port.
Attach second monitor
Plug in the second monitor and turn it on. Connect the best monitor to the DVI port to optimize your hardware. Restart your computer.
Setup on Windows
Set up the second monitor on a PC by right-clicking the Desktop and then clicking Properties. On the Display Properties window, click the Settings tab.
Click the Display drop-down list, and select External Monitor. Check the box Extend my Windows Desktop onto this Monitor, and then click Identify.
Match the physical arrangement of the monitors by dragging the monitor icons. Then click OK.
Use System Preferences
Arrange the displays on a Mac by clicking System Preferences, and then selecting the Displays pane. Click Arrangement and drag the icons to match the arrangement of your monitors.