IBM RPT 1 Introduction to IBM Rational Performance Tester - YouTube
IBM TESTER FOR DISCS MAINFRAME PLUS 8pcs CPU 1970s VERY RARE VINTAGE | eBay
Patricia R. - Senior Software Tester - IBM | LinkedIn
Rational Functional Tester - Functional Test
Qué es la prueba de software y cómo funciona? | IBM
IBM I/O Tester from 1965 hooked up to System/360 peripherals to debug them. This avoided the cost of building a blinky-light control panel into every peripheral. : r/EngineeringPorn