difference between microcontroller & microprocessor

there are following point which differentiate between microcontroller and microprocessor.

micro controller:

block diagram of micro controller

• its special purpose computer.
• its used only for specific task
• its single integrated chip(IC ) on timer,counter,I/O ports,oscillator,serial communication port all connected.
• fixed amount of RAM,ROM inbuilt chip
• some version of controller connected PROM,EPROM,EEPROM
• few addressing modes in controller
• few instruction for data transfer operation.
• its used in embedded applications i.e coderless phone,washing machine,micro oven
• programming of microcontroller done in assembly language.
• cheaper then processor
• i.e intel8051,intel8052,PIC,zilong(Z80),AT89C51,etc.

microprocessor

block diagram of micro processor

• its general purpose computer.
• its used for multiple and unspecific task.
• in processor no timer,no counter,no oscillator on chip.externally we have to connect this all.
• externally connect RAM & ROM memory.
• more addressing modes.
• more instruction for data transfer operation.
• costly then controller
• require more space for processor based system