Why Is It Called 8051? In 1981, Intel introduced an 8-bit microcontroller called the 8051. It was referred as system on a chip because it had 128 bytes of RAM, 4K byte of on-chip ROM, two timers, one serial port, and 4 ports (8-bit wide), all on a single chip. What does 8051 mean? The
What Is The 1st Microcontroller? A microcontroller was developed in 1971 by Intel Corporation in the United States. That is the 4 bit microcontroller called i4004. It was ordered by a Japanese company BUSICOM for calculators. Later, the contract was changed and it was sold as a general-purpose microcontroller with success. Which came first microprocessor