What is VGA?
VGA (Video Graphics Array) is an older display connection standard used to transmit analog video signals. It was widely used for connecting computers to monitors, projectors, and some TVs.
What Is It Used For?
- Connecting older computers to monitors or projectors
- Supporting analog video signals, typically up to 1080p
- Used in some legacy systems or business environments with older equipment
Common Misunderstandings
- VGA does not carry audio, only video
- Image quality is lower compared to digital standards like HDMI or DisplayPort
- Not all modern devices include VGA ports, requiring adapters if needed
- VGA resolution and clarity can degrade over longer cable lengths
How to Identify It
- Blue trapezoid-shaped port with 15 small holes arranged in three rows
- Usually labeled as "VGA"
- Has two screw holes on either side for securing the cable
- Found on some older desktops, laptops, and projectors
Devices That Commonly Use VGA
- Older desktop computers — use VGA to connect to monitors
- Laptops — include VGA ports for projector or monitor output
- Projectors — many models support VGA input for video display
- Monitors — especially older models, accept VGA connections
- KVM switches — often use VGA to manage multiple systems with a single keyboard, video, and mouse
- Industrial equipment — some machinery still relies on VGA-based interfaces
- Point-of-sale systems — older POS terminals may use VGA for display connections
