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Digital Electronics

Digital Electronics
Which of the following is equivalant to an ODD function

 XNOR
 NOR
 AND-NOR
 XOR

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Digital Electronics
The NAND gate can function as a NOT gate if

 one input is set to 0
 inputs are left open
 all inputs are connected together
 one input is set to 1

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

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

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Digital Electronics
The maximum positive and negative numbers which can be represented in two’s complement form using n bits are respectively,

 +2n-1,-2n-1
 +(2n-1-1),-(2n-1-1)
 +(2n-1-1),-2n-1
 +2n-1,-(2n-1+1)

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

 Both SRAM and DRAM
 DRAM
 SRAM
 None

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

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

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