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Digital Electronics

Digital Electronics
What are the values of R1 and R2 respectively in the expression (235)R1 = (565)10 = (1065)R2

 6, 16
 12, 8
 8, 16
 16, 8

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 1. The gate is either

 an AND or an OR
 an AND or a NOR
 a NAND or a NOR
 an OR or an X-OR

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Digital Electronics
An AND gate can be imagined as

 switches connected in parallel
 transistors connected in paralle
 transistors connected in series
 switches connected in series

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Digital Electronics
ASCII code is a

 10-bit code
 5-bit code
 8-bit code
 7-bit code

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Digital Electronics
The number of comparators in a parallel conversion type 8-bit analog to digital converter is

  255.
 256.
 16.
  8.

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

 NOT
 NAND
 AND
 OR

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