The simplified video hardware found in the Electron does not support this technique, so the additional data remains visible around the screen border.
The performance of such a system is not as good as one with dedicated video hardware.
Upon installation, the software asked to be allowed to talk directly to the video hardware.
Doing so actuated a relay in the video hardware, and was accomplished by writing to a specific memory-mapped control register.
Programs that repeatedly switched between 32 and 64 character modes at high speed (either on purpose or accidentally) could permanently damage the video hardware.
This pair of drivers allows a userspace client direct access to the video hardware.
The copper is most commonly used to set and reset the video hardware registers at the beginning of each frame.
Windows 8 has the same requirements as 7, but it can also use software rendering when compatible video hardware is absent.
The video hardware could only display text at 64 or 32 characters wide by 16 lines of resolution.
Besides being consulted for video game reviews, Mrozek has given advice on setting up video hardware.
