|25-JUL-94 (27 years old)
|keyboard is used equipment.
|Manufactured for IBM by Kexmark. Made in the USA
|blue logo on gray background
|Designed when “real” typing on a quality keyboard was a required skill to use a $4000 IBM personal computer. PC Mag link
(pre-dates the then new mouse-click and graphical user interface operating system later to be known as Microsoft Windows 3.1 and 95)
|removable SDL, coiled cable, ps/2 connector (used cable, standard length)
|removable (one piece key stem integrated into key cap) (NEW keycaps with APL keyset from Unicomp $35 value)
|clicky (buckling spring)
APL syntax and symbols (Wikipedia) The programming language APL is distinctive in being symbolic rather than lexical: its primitives are denoted by symbols, not words. These symbols were originally devised as a mathematical notation to describe algorithms. APL programmers often assign informal names when discussing functions and operators (for example, product for ×/) but the core functions and operators provided by the language are denoted by non-textual symbols.
|Keyboard pre-selected as good candidate and passed initial testing to confirm mechanical condition. Upper keyboard case disassembled and individual 101 keys have been removed and fully cleaned by hand. Inspection of interior plate. All 56 plastic rivets drilled out and replaced with M2 precision screws to restore internal integrity. Interior plate vacuumed to remove foreign debris.Keyboard re-assembled and re-tested post-cleaning. Individual photography of rear label. Photo gallery of typical restoration workflow.
|This keyboard is tested to work 100%