The primary purpose of a three-state buffer is usually ____________(a) To provide isolation between the input device and the data bus(b) To provide the sink or source current required by any device connected to its output without loading down the output device(c) Temporary data storage(d) To control data flowThis question was addressed to me in a national level competition.This question is from Universal Shift Registers topic in portion Registers of Digital Circuits

The primary purpose of a three-state buffer is usually ____________(a)

1.	The primary purpose of a three-state buffer is usually ____________(a) To provide isolation between the input device and the data bus(b) To provide the sink or source current required by any device connected to its output without loading down the output device(c) Temporary data storage(d) To control data flowThis question was addressed to me in a national level competition.This question is from Universal Shift Registers topic in portion Registers of Digital Circuits
Answer» Correct option is (a) To provide ISOLATION between the INPUT DEVICE and the data bus Explanation: The primary purpose of a three-state buffer is usually to provide isolation between the input device or peripheral DEVICES and the data bus. Three conditions of a three-state buffer are HIGH, LOW & float.

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