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Which of the following describes the action of storing a bit of data in a mask ROM?

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Which of the following describes the action of storing a bit of data in a mask ROM?

(a) A 0 is stored by connecting the gate of a MOS cell to the address line

(b) A 0 is stored in a bipolar cell by shorting the base connection to the address line

(c) A 1 is stored by connecting the gate of a MOS cell to the address line

(d) A 1 is stored in a bipolar cell by opening the base connection to the address line

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Correct option is (c) A 1 is stored by connecting the gate of a MOS cell to the address line

The explanation is: The action of storing a bit of data in a mask ROM is that when a 1 is stored by connecting the gate of a MOS cell to the address line. Mask ROMs are programmed by the manufacturer and are custom made as per the user.

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