Microcontroller
Microcontroller is also known as computer on a chip this includes basic features of microprocessor (ALU Registers and control circuits ) with 1 k to 2k bytes of ROM small RAM few input / output ports etc on a signal chip to make it a complete computer. They are primarily used for small specific applications like traffic light control programmable washing machines toys etc. Few examples of microcontrollers are Intel 8048 Intel 8051 Motorola 6805. Motorola 68HC11intel8051 microcontroller is discussed in detail in chapter12.