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Digital Electronics

Digital Electronics
A bubbled OR gate is equivalent to a

 NAND gate
 X-OR gate
 NOR gate
 AND gate

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Digital Electronics
Why encoder is used in the digital electronics ?

 To convert coded information into non coded form
 To convert non coded information into coded form
None of these
 It is used to separate address bus and data bus

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Digital Electronics
A signed integer has been stored in a byte using 2’scomplement format. We wish to store the same integer in 16-bit word. We should copy the original byte to the less significant byte of the word and fill the more significant byte with

 0
 Complement of the MSB of the original byte
 Equal to the MSB of the original byte
 1

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Digital Electronics
The binary number designations of the rows and columns of the K-map are in

 Gray code
 BCD code
 binary code
 XS-3 code

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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

 1324
 2201
 4231
 423

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Digital Electronics
For checking the parity of a digital word, it is preferable to use

 X-OR gates
 NOR gates
 AND gates
 NAND gates

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