MITS 816

The MITS 816 was known as a "four-function" calculator; it could add, subtract, multiply and divide. The display was only 8-digits but the calculations were done to 16-digits of accuracy. The custom molded case gave the kit a professional appearance; the kit was $179 and an assembled unit was $275. The MITS 816 was featured on the November 1971 cover of Popular Electronics. Thousands of calculator orders came in each month, in contrast to poor results for previous kits that MITS had offered.