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80186 Microprocessors: Introduction and Architecture

Hello friends, today we are going to discuss the 80186 microprocessor with integrated peripherals. The Intel 80186 is an improved version of the 8086 microprocessor. 80186 is a 16-bit microprocessor with a 16-bit data bus and a 20-bit address bus. It has a programmable peripheral device integrated into the same package. The instruction set of the 80186 is a superset of the instruction set of the 8086. The term super-set means that all of the 8086 instructions will execute properly on an 80186, but the 80186 has a few additional instructions. The following figure shows the block diagram and pin diagram of 80186. The CPU is divided into seven independent functional parts. 80186 internal block diagram  80186 68-pins pin diagram  Functional parts of 80186 Microprocessor The Bus Interface Unit (BIU) Execution Unit (EU) Clock Generator Programmable interrupt controller Programmable Chip Select Unit (CSU) Programmable DMA Unit Programmable counter/timers The Bus Interface Unit
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Magnetic Media

The purpose of physical media is to transport a raw bitstream from one machine to another. These media are roughly grouped into guided media, such as copper wire and fiber optics, and unguided media, such as radio and lasers through the air. Each one has its own characteristic in terms of bandwidth, delay, cost, and ease of installation and maintenance.

Guided Media

Medium is more important in setting transmission parameters.
Guided media includes everything that ‘guides’ the transmission. That usually takes the form of copper wires, optical fiber, etc.

Magnetic Media

The most useful way to transport data from one computer to another is magnetic tape or floppy disk while this method is not as sophisticated as using a geosynchronous area. It is more cost-effective. The bandwidth characteristics of magnetic tape are excellent, the delay characteristics are poor. Transmission time is measured in minutes or hours, not in milliseconds.
For further details see Storage devices.

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Comments

  1. Unknown12/10/2019

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