Why is the screen output slower than on DOS?
The only speed disadvantage on UNIX is with screen output. Clipper writes directly to the video RAM, FlagShip cannot due to the multi-user nature of UNIX and the probable usage of remote terminals. FlagShip uses curses instead. Curses does screen mapping, and allows for many different users using same executable to be using many different types of Terminals at the same time.. The speed is comparable with Clipper’s when linking in ANSI.OBJ with ANSI.SYS. To be a fair comparison, force Clipper to use the ANSI.SYS screen driver which is also a simple screen mapping utility.
