8255 Programmable Peripheral Interface(PPI)

8255 Programmable Peripheral  Interface(PPI)- The Intel 8255 (or i8255) programmable peripheral interface (PPI) chip was developed and manufactured by Intel in the first half of the 1970s for the Intel 8080 microprocessor and is a member of the MCS-85 Family of chips. The i8255 was also used with the Intel 8085 and Intel 8086[1] and their descendants and found wide applicability in digital processing systems. It was later cloned by other...

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Materials used for making Microprocessor.

 Materials used for making Microprocessor (CPU)-                        Microprocessors are the heart of  any computers,laptops,mobile phones,servers,super computers and complex military and space systems.Today we are going to deeply analyse What are the materials are used for making the modern microprocessors. Commonly there are three electronic components are used...

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Evolution of Microprocessor

Evolution of Microprocessor: Microprocessor has turned into the brain of millions of gadgets, since year 1971 i.e. devoid of microprocessors these wonderful innovations of millions of gadgets would have not been possible. Now come have a look at the gadgets in which the microprocessors are playing an imperative role from more than 40 long years. Business Calculator: A business calculator was invented in the year 1971. The Unicom 141P business calculator was out of the foremost gadgets that feature a microprocessor. Commodore PET:...

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History of the microprocessor !

\ History of the microprocessor The CPU is known as the central processing unit, and this term is synonymous with microprocessor. The microprocessor is considered the brain of the computer, and Intel invented the term in 1971. There was a previous 8-bit chip developed in 1969 known as the Four-Phase AL1; however, Intel invented a better component and coined the term microprocessor. In 1971, Intel’s first microprocessor generated an...

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Definition of Microprocessor

 Microprocessor A microprocessor is a tiny electronic chip found inside a computer's central processing unit and other electronic devices. Its basic function is to take input, process it and then provide appropriate output. Microprocessor On the surface, a microprocessor’s job may seem like an easy task, but modern microprocessors perform trillions of instructions per second. A computer’s central processing unit handles all the processing...

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1. INTRODUCTION TO MICROPROCESSOR AND MICROCOMPUTERARCHITECTURE: A microprocessor is a programmable electronics chip that has computing and decision making capabilities similar to central processing unit of a computer. Any microprocessorbased systems having limited number of resources are called microcomputers. Nowadays, microprocessor can be seen in almost all types of electronics devices like mobile phones, printers, washing machines etc. Microprocessors are also used in advanced applications like radars, satellites and flights. Due to the...

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Memory Access(8086 Assembler Tutorial for Beginners)

Memory Access To access memory we can use these four registers: BX, SI, DI, BP. Combining these registers inside [ ] symbols, we can get different memory locations. These combinations are supported (addressing modes) d8 - stays for 8 bit displacement. d16 - stays for 16 bit displacement. Displacement can be a immediate value or offset of a variable, or even both. It's up to compiler to calculate a single immediate value. Displacement can be...

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