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Digital Electronics

Digital Electronics
Convert the binary number (1111000011110000) to hexadecimal number

 7070
 1010
 F0F0
 5050

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Digital Electronics
Which of these sets of logic gates are designated as universal gates?

 NOR, NAND, XNOR.
 OR, NOT, AND.
 XOR, NOR, NAND.
 NOR, NAND.

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Digital Electronics
A device which converts decimal number into BCD form is called

 encoder
 code converter
 decoder
 multiplexer

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Digital Electronics
A new Binary Coded Pantry (BCP) number system is proposed in which every digit of a base-5 number is represented by its corresponding 3-bit binary code. For example, the base-5 number 24 will be represented by its BCP code 010100. In this numbering system,the BCP code 100010011001 corresponds to the following number in base-5 system

 423
 1324
 2201
 4231

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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
In a read-only memory information can be stored

 by the user a number of times
 in any of the above ways depending upon the type of memory
 at the time of fabrication
 by the user only once during its life time

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