Description: HP is one of the largest companies in the computer and electronics industry and has been established in the sector since 1939. One of their first devices in the 1980s was the HP 12c Platinum, a financial calculator that has not changed since then and is still in use today. It is extremely useful, as the HP 12c Platinum includes all the essential functions needed in accounting. The appearance of the calculator has also remained the same, and many people still vividly remember the flat block design. HP was also the founder of Silicon Valley, which today houses the majority of the most well-known IT companies in the USA. It is interesting to see that the HP 12c Platinum has maintained its presence in the market for the last 30 years without ever receiving a revised version. While some adjustments were made to the design, the original shape and function have been preserved to this day, which distinguishes the HP 12c Platinum and the entire series.