The NOT gate has what appears to be a nose at the front. NOT gates are represented diagrammatically as: A NOT gate inverts the input - the output is 1 (TRUE) if the input is 0 (FALSE), and the output is 0 (FALSE) if the input is 1 (TRUE). AĪ NOT gate uses just one input to generate one output. OR gates are represented diagrammatically as:Īn OR gate is represented in the truth table as below. The output is 1 (TRUE) only if either or both of the inputs are 1 (TRUE). A complementary metal-oxide semiconductor (CMOS) is the semiconductor technology used in most of todays integrated circuits ( ICs ), also known as chips or microchips. AĪn OR gate uses two inputs to generate one output. Like logic gates, a 0 in the table represents FALSE, while 1 represents TRUE.Īn AND gate is represented in the truth table below. Along with early advances in magnetic-core memory, transistors led to second generation computers that were. Compared to small-signal transistors, power transistors have a larger.
#TRANSISTOR DEFINITION IN COMPUTER PC#
Q represents the output.Ī truth table shows, for each combination of inputs, what the output will be. The transistor was at work in the computer by 1956. If a transistor has a Pc of 1W or more, it is commonly classified as a power transistor. The output is 1 (TRUE) only if both of the inputs are 1 (TRUE).ĪND gates are represented diagrammatically as:Ī represents the first input.
AND gatesĪn AND gate uses two inputs to generate one output. There are three types of gate to consider:Įach type of gate can be represented either as a diagram, in algebraic form, or as a truth table. A logic gate is a series of transistors connected together to give one or more outputs, each output being based on the input or combination of inputs supplied to it. In its most basic form, a computer is a collection of powered and unpowered circuits and transistors.
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