Is scientific calculator is an embedded system?

Answer 1

Yes, the scientific calculator is an example of an embedded system. In fact, an electronic calculator was one of the first applications of an embedded microcontroller. It is considered an embedded system because in addition to calculating answers, it is also handling low level functions such as input from the keypad and output to the LCD screen.

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Intel designed their first microprocessor (Intel 4004) for a Japanese calculator company called Busicom to replace a far more complex chipset that the company had designed themselves but was beyond Intel's ability to make at the time. Busicom did build the calculator as an embedded system based on the Intel 4004, but they eventually canceled the contract and gave Intel permission to sell the Intel 4004 to other companies.