IBM PC于1981年8月12日正式发布，型号为5150[1]。这款开创性的个人计算机配备了Model F/XT键盘，采用了由Richard Hunter Haris设计的容性按键开关技术，该技术获得了美国专利4,118,611[1]。Model F键盘的技术设计在IBM多条产品线中得到应用，标志着个人计算机键盘设计的一个重要里程碑。
Model F键盘系列的演进体现了其广泛的应用价值。Datamaster键盘（型号5322）于1981年7月发布，成为最早的Model F键盘实现[1]。随后，IBM PC/XT于1983年3月8日发布[1]，继续采用这一键盘技术。IBM还将Model F键盘应用于企业终端产品线，包括1982年9月6日发布的IBM 5291终端和1984年10月2日发布的IBM 5292终端[1]。此外，Model F键盘还配备在1984年2月16日发布的IBM 5155便携式个人计算机上[1]。即使在IBM信息产品部分拆分成立Lexmark公司后（1991年3月27日），这家新公司至少到1994年中期仍继续生产529X系列键盘[1]。
The IBM PC, model 5150, celebrated its 45th anniversary on August 12, 1981, marking four and a half decades since its debut [1]. Alongside the personal computer came the Model F/XT keyboard, which became a cornerstone of IBM's input device strategy across multiple product lines for years to come [1].
The Model F keyboard featured capacitive switch technology designed by Richard Hunter Haris, protected under U.S. patent 4,118,611 [1]. This keyboard design first appeared in the Datamaster keyboard (model 5322), which launched in July 1981, preceding the PC itself [1]. Following the PC's success, IBM released the PC/XT (model 5160) on March 8, 1983, equipped with an XT variant of the keyboard [1]. The Model F architecture extended beyond personal computers into IBM's terminal line, with the 5291 terminal debuting on September 6, 1982 and the 5292 following on October 2, 1984 [1]. IBM also introduced the 5155 portable personal computer on February 16, 1984, incorporating the same keyboard technology [1].
Production of Model F keyboards continued well into the 1990s through Lexmark, which was established as a separate company on March 27, 1991 after being spun off from IBM's Information Products division [1]. Lexmark maintained production of the 529X keyboard line at least through mid-1994 [1].