Oct1979-10-31 311979-10-31 19791979-10-31 HP-41CHP-41C HP’s first calculator with LCD Followed by: HP-41CV and CX. Read MoreRead More
Jul1978-07-01 011978-07-01 19781978-07-01 HP-33EHP-33E introduced in 1978, priced at $100 Programmable Read MoreRead More