Construction and Working Principle of DC Motors Aug 13, 2021Here is the schematic diagram of a DC Motor. A DC motor consists of six main parts, which are as follows. Yoke. The outer frame of a DC motor is a hollow cylinder made up of cast steel or rolled steel is known as yoke. The yoke serves following two purposes. It supports the field pole core and acts as a protecting cover to the machine. Inside the vintage 74181 ALU chip: how it works and why it's so The 74181 chip is important because of its key role in minicomputer history. Before the microprocessor era, minicomputers built their processors from boards of individual chips. A key part of the processor was the arithmetic/logic unit (ALU), which performed arithmetic operations (addition, subtraction) and logical operations (AND, OR, XOR).
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