Hewlett Packard HP-45 Electronic Calculator (1973-1976) Models on Display:Hewlett Packard 45 released in late 1998 for

released in late 1998 for $899

During the late 19th and early 20th centuries

It ran a groundbreaking operating system that introduced the world to features we use daily

celebrated for its ability to flawlessly track a full seven days of weather trends on a single chart

featuring a sleek design with a unique tilt-and-swivel base that quickly became the office industry standard

Hewlett Packard HP-45 Electronic Calculator (1973-1976) Models on Display:Hewlett Packard 45 released in late 1998 forHewlett Packard 45 (HP 45) First Scientific Calculator with a "Shift" Key The Hewlett Packard HP 45, introduced in May 1973 for $395 (around $2,800 today), was the high performance successor to the legendary HP 35 and the worlds first scientific calculator to feature a "Shift" keythe iconic gold Prefix button. This simple innovation allowed HP to assign multiple functions to a single physical key, effectively doubling the machine's capabilities