Correct option is D
A Video Graphics Array (VGA) connector is a standard interface used to connect the monitor to a computer's video card. The connector has 15 pins arranged in three rows of five holes each. These holes correspond to the pins on a VGA cable and transmit analog video signals.
Important Key Points:
- VGA Connector Characteristics:
- 15 Holes: Arranged in a 3x5 pattern.
- Analog Signals: Transmits analog video signals, including red, green, blue (RGB), and sync signals.
- Shape: D-shaped (commonly referred to as a D-sub connector).
- Usage of VGA Connectors:
- Commonly used for connecting older monitors, projectors, and some modern devices that still support VGA input.
- Replaced by digital connectors like HDMI, DisplayPort, and DVI in newer systems.
- VGA Connector Pinout:
- Each of the 15 holes/pins has a specific function, such as transmitting video signals and sync data.
Knowledge Booster:
- Why Not Other Options?
- a) 10:
- Incorrect. VGA connectors do not have 10 holes; they use a 15-pin setup.
- b) 12:
- Incorrect. VGA connectors have more than 12 holes.
- c) 18:
- Incorrect. VGA connectors are not designed with 18 holes.
- Limitations of VGA Connectors:
- Supports only analog video, not digital signals.
- Limited resolution and image quality compared to modern connectors like HDMI.
- Interesting Fact:
- VGA was introduced in 1987 by IBM and became the standard for computer monitors until digital connectors became popular.