Calculator to the development of electronic calculators. The Casio Computer Company, in Japan, released the Model "14-A" calculator in 1957, which was the world's first all-electric (relatively) compact calculator. It did not use electronic logic but was based on relay technology, and was built into a desk. In October 1961, the world's first "all-electronic desktop" calculator, the British Bell Punch/Sumlock Comptometer ANITA (A New Inspiration To Arithmetic/Accounting) was announced. This machine used vacuum tubes, cold-cathode tubes and Dekatrons in its circuits, with 12 cold-cathode "Nixie" tubes for its display. Two models were displayed, the Mk VII for continental Europe and the
Programmable calculator now available. It is installed via a cable or IrDA connection with a computer. RPL is a special Forth-like programming language used by Hewlett- Packard in its high range devices. The first device with RPL calculator was the HP-28C released in 1987. The language PPL was introduced with the HP Prime calculator and is much like Pascal An on-board (i.e. right on the calculator) assembler for TI 89 and related calculators was announced and released in 2014. Machine language programming was often discouraged on early calculator models; however, dedicated platform hackers discovered ways to bypass the built-in interpreters on some