8085 microprocessor was initially designed by Intel in 1977 using NMOS technology. Internal Architecture of 8085 and 8086 microprocessors So, as it can be seen in this diagram, there are various functional units in its architecture. Let’s look at their functionality one by one: ALU( Arithmetic and Logical Unit): It includes; the accumulator, the temporary register, arithmetic circuits, and the five flags. It performs arithmetical and logical operations. Accumulator: It’s an

About System Buses: The most famous microprocessors are Intel 8086 and 8085. To transfer data, System buses are used. There are of three types of a microprocessor: 1. Address Bus 2. Data Bus 3. Control bus Address Buses are unidirectional i.e. address always goes out of the microprocessor. It is a group of lines that send a memory address or a device address to the memory or the peripheral. Data Buses are bi-directional, they transfer data in and out of the mic

Microprocessor: A microprocessor is a clock-driven, multi-purpose register-based electronic device. It reads instruction from memory and according to the given instruction, it processes the input data. A microprocessor also has decision-making functionality in terms of changing the sequence of program execution. Example: 8085 Microprocessor: 8085 Microprocessor: About 8085 microprocessors: It’s an 8-bit microprocessor. It’s a 40-pin IC. It can operate with a 3 MHz single-phas