That would explain the RS-232 serial ports, parallel port and PS/2 ports. I remember seeing some other stock photos and was wondering why it had what appeared

That would explain the RS-232 serial ports, parallel port and PS/2 ports. I remember seeing some other stock photos and was wondering why it had what appeared to be a Track2/Track3 Magnetic Stripe Reader. I last had worked with developing for POS hardware about 5 years ago, and even then, USB receipt printers and barcode scanners were still very much fringe at the time. Apparently 5 years later they still are rare, but I guess that's to be expected considering the age of most POS suites.