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Are microprocessors and microcontrollers the same?
Ultimately, microcontrollers and microprocessors are different ways of organizing and optimizing a computing system based on a CPU. While a microcontroller puts the CPU and all peripherals onto the same chip, a microprocessor houses a more powerful CPU on a single chip that connects to external peripherals.
Where is microprocessor and microcontroller used?
Microprocessors are mainly used in designing general-purpose systems from small to large and complex systems like supercomputers. Microcontrollers are used in automatically controlled devices. Microprocessors are basic components of personal computers.
Why do we need microprocessors?
Importance. A device that uses a microprocessor is normally capable of many functions, such as word processing, calculation, and communication via Internet or telephone. Therefore, a microprocessor would act as device’s “brain” in that it transmits, receives and interprets the data needed to operate a device.
What is a microcontroller and how it works?
A microcontroller is a small and low-cost microcomputer, which is designed to perform the specific tasks of embedded systems like displaying microwave’s information, receiving remote signals, etc. The general microcontroller consists of the processor, the memory (RAM, ROM, EPROM), Serial ports, peripherals (timers, counters), etc.
What is an 8 bit microcontroller used for?
8-bit microcontroller − This type of microcontroller is used to execute arithmetic and logical operations like addition, subtraction, multiplication division, etc. For example, Intel 8031 and 8051 are 8 bits microcontroller.
What is an external memory microcontroller?
External memory microcontroller − This type of microcontroller is designed in such a way that they do not have a program memory on the chip. Hence, it is named as external memory microcontroller. For example: Intel 8031 microcontroller.
What is the function of pins 31 and 32 in microcontroller?
Pin 31 : This is ALE pin which stands for Address Latch Enable. It is used to demultiplex the address-data signal of port. Pins 32 to 39 : These pins are known as Port 0. It serves as I/O port. Lower order address and data bus signals are multiplexed using this port.