![]() The other hard drive connectors were cheaper and didn’t require complicated termination and expensive cables. There were a few cheap SCSI host adapters for the PC, like the Seagate ST01 and ST02, but they weren’t good performers. In addition to a standard hardware interface, most SCSI devices didn’t need special device drivers. There were also updated standards that pushed performance higher over time. You could even find SCSI to network adapters. SCSI could connect to many things besides disks, like scanners and tape drives. The interface was very generic, and they were able to get it standardized with ANSI - an early example of the benefit of opening up a standard. ![]() Instead, they made disks with a standard interface and then produced a single interface board for each computer they wanted to support. Historically, Shugart - a maker of disks - was tired of producing custom drive electronics for each device they made. ![]() recently did a video on the bus which he calls the “USB of the 80s.” But a standard predating all of this was very common in high-end systems: SCSI. Of course, these days, you are more likely to find some version of SATA and - lately - NVME connectors. Later, IDE hard drives became the defacto standard. Early home PCs usually had a floppy disk and a simple hard drive controller.
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