•Essentially some RAM (framebuffer) and some digital-to-analogue circuitry (RAMDAC) –latter only required for CRTs
•(Today usually also have powerful GPU for 3D)
•Framebuffer holds 2-D array of pixels: picture elements.
•Various resolutions(640x480, 1280x1024, etc) and color depths:8-bit (LUT), 16-bit (RGB=555), 24-bit (RGB=888), 32-bit (RGBA=888)
•Memory requirement = x ×y ×depth
•e.g. 1280x1024 @ 32bpp needs 5,120KB for screen
•=> full-screen 50Hz video requires 250 MBytes/s(or 2Gbit/s!)
