While this offered considerable power, GI's marketing was limited and the CP1600 was not a success. The CP1600 had a complex bus that made it difficult to interface with, and the PIC was introduced as a companion device offering ROM for program storage, RAM for temporary data handling, and a simple CPU for controlling the transfers. The PIC was originally intended to be used with the General Instrument CP1600, the first commercially available single-chip 16-bit microprocessor. The first parts of the family were available in 1976 by 2013 the company had shipped more than twelve billion individual parts, used in a wide variety of embedded systems. The name PIC initially referred to Peripheral Interface Controller, and is currently expanded as Programmable Intelligent Computer. PIC (usually pronounced as ) is a family of microcontrollers made by Microchip Technology, derived from the PIC1650 originally developed by General Instrument's Microelectronics Division. Die of a PIC16C505 CMOS ROM-based 8-bit microcontroller manufactured by Microchip Technology using a 1200 nanometre process
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