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Showing posts from December, 2016

MICROPROCESSOR AND MICROCONTROLLER

MICROPROCESSOR AND MICROCONTROLLER                                                               ASSIGNMENT-II 1a) What is the difference between Harvard Architecture and von Neumann Architecture? The name  Harvard Architecture  comes from the Harvard Mark. The most obvious characteristic of the Harvard Architecture is that it has physically separate signals and storage for code and data memory. It is possible to access program memory and data memory simultaneously. Typically, code (or program) memory is read-only and data memory is read-write. Therefore, it is impossible for program contents to be modified by the program itself. The  von Neumann Architecture  is named after the mathematician and early computer scientist John von Neumann. Von Neumann machines have shared signals and memory for code and data. Thus, the program can be easily modified by itself since it is stored in read-write memory. 1b) 8051 was developed using which technology? Intel’s original