In 1960, Gene Amdahl of IBM was tasked with creating the System/360 mainframe computer family, which revolutionized the industry. The System/360 allowed for different speeds and peripherals while running the same software, leading to its success as IBM’s most profitable product. Amdahl’s architecture influenced future IBM mainframes and continues to impact current models. The software, OS/360, was ambitious but challenging to write, leading to the creation of three special operating systems for smaller machines. Hardware advances, such as Solid Logic Technology and microprogramming, were key features of the System/360’s success, developed by engineers like Erich Bloch.
https://www.computerhistory.org/revolution/mainframe-computers/7/164