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Digital Electronics

Digital Electronics
What is the Boolean expression for a two-input AND gate ?

 A & B
 A - B
 A + B
 A.B

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Digital Electronics
Which of the following logic circuits is the fastest ?

 DTL.
 All have same speed.
 TTL.
 RTL.

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Digital Electronics
Which of the logical operations is represented by the + sign in Boolean algebra ?

 NAND
 AND
 NOT
 OR

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Digital Electronics
Complement of NOR and OR gate is ________ and ________ respectively.

 AND, NAND
 OR, NOR
 NAND, AND
 NOR, OR

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Digital Electronics
A bubbled NAND gate is equivalent to a

 OR gate
 X-OR gate
 NAND gate
 NOR gate

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Digital Electronics
A read only memory in which the present contents must be erased before the new information can be stored is

All of these
 PROM
 EAROM
 ROM

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