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Digital Electronics

Digital Electronics
Which of the following is known as a mod-2 adder?

 X-NOR gate
 X-OR gate
 NAND gate
 NOR gate

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Digital Electronics
Assuming 8 bits for data, 1 bit for parity, I start bit and 2 stop bits, the number of characters that 1200 BPS communication line can transmit is.

None of these
12 CPS
120 CPS
10 CPS

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Digital Electronics
Which of the following gates is known as a coincidence detector?

 AND gate
 X-NOR gate
 X-OR gate
 NAND gate

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Digital Electronics
In decimal number system what is MSD

 First digit from right to left
 Middle digit
 Mean of all digits
 First digit from left to right

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Digital Electronics
Which of the following is 1’s complement representation of +57

 00000001
 01000110
 11000110
 00111001

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Digital Electronics
Which of the following memories uses one transistor and one capacitor as basic memory unit

 None
 SRAM
 Both SRAM and DRAM
 DRAM

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