Both of these make perfect sense. On early PCs everything was on a ISA card. Your parallel ports, serial ports, HD controller, floppy controller and video. Dall

Both of these make perfect sense. On early PCs everything was on a ISA card. Your parallel ports, serial ports, HD controller, floppy controller and video. Dallas RTC and video upgrade were probably the 2 most popular upgrades but you likely didn't have slots available for both, so putting both on a single card makes complete sense. When sound cards came out with ide ports many computers still had ST-506 hard drives and not ide drives. Even if they did they might only have a single IDE port which was already being used or using it for a CD-ROM required on mounting your hardrive to switch master/slave jumpers on your hard drive. As since people at the time were installing sound cards for games and many need games requires CD-ROM drives the painting makes perfect sense. When soundcards with ports for CD-ROM drives first came out they weren't even necessarily ide ports. Some were SCSI or Sony CD-ROM ports.