HP 9100B was an improved version of HP 9100A, a first Hewlett Packard calculator introduced in 1968. The HP 9100B is a scientific desktop calculator with magnet…
HP 9100A programmable calculator (computer) | Interface
HP Computer Museum
The early history of HP calculators | HPE
HP Computer Museum
HP - HP calculators have been making it count since 1968. #TBT http://hp.nu/KNcJ9 | Facebook
HP - #TBT In 1968, Bill and Dave created HP 9100A, the world's first programmable scientific calculator. Today, we follow in their footsteps with another mathematical innovation: HP Prime. http://hp.tl/6185BKgVx | Facebook
HP 9100A Calculator | Selling the Computer Revolution | Computer History Museum