Final answer:
The video subsystem of a computer includes the video card, which has a GPU and VRAM, and the monitor, which displays images created by the video card. The video card generates image data that is shown on the monitor, made up of individual RGB pixels.
Step-by-step explanation:
The video subsystem of a computer typically comprises several key components, which are crucial for the generation and display of images on a computer's monitor. The primary hardware components of a video subsystem include the video card (also known as a graphics card) and the monitor. The video card is an expansion card that generates a feed of output images to the display, while the monitor is the screen that displays the images to the user.
Additionally, the video card contains a graphics processing unit (GPU), which accelerates the creation of images in a frame buffer to be displayed on a screen. It also has its own specialized memory called Video RAM (VRAM) to store graphical data. Monitors are typically comprised of a multitude of pixels, which are small dots that can change color to create images. Each pixel is made up of sub-pixels typically in red, green, and blue (RGB) that can be individually controlled to present the correct color for that pixel.