I tùi 1952 nî khai-sí chia̍h IBM thâu-lō͘, hit-tong-sî i tio̍h kap IBM 704 ê thoân-tūi chò-hóe hoat-tián, in tī 701 ê ki-chhó͘ téng-bīn ka-thiam sin-ê khang-thâu, phì-jû kóng phû-tiám (floating point, koan-hē tio̍h sió-sò͘-tiám ê sǹg-su̍t chi̍t khoán) kè-sǹg. 1953 nî Amdahl tio̍h chiâⁿ chò sī 704 kè-ōe ê chú-chhî-chiá.
Amdahl--sī tī 1955 nî lî-khui IBM chi̍t chām, kàu 1960 nî koh tńg--khì, chham-ka pau-koat IBM System/360 chāi-lāi ê hē-thóng gián-kiù, che āu--lâi sī siāng phó͘-kip ê mainframe tiān-náu.
Henderson, Harry (2009). "Amdahl, Gene Myron". Encyclopedia of Computer Science and Technology (Revised Edition). Facts On File. ISBN978-0-8160-6382-6.