Writing to VDU memory in text mode?

Answer 1

In text mode, writing to VDU (Video Display Unit) memory involves sending character data directly to the display's memory buffer, which is typically organized as a grid of character cells. Each cell can store a character and its associated attributes (like color). This is often done using system calls or writing to specific memory addresses, depending on the operating system and hardware. The characters are then rendered on the screen based on their positions in the buffer.