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Digital Electronics

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

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

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Digital Electronics
Why decoder is used in the digital electronics ?

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

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Digital Electronics
Assuming 8 bits for data, 1 bit for parity, I start bit and 2 stop bits, the number of characters that 1200 BPS communication line can transmit is.

12 CPS
10 CPS
120 CPS
None of these

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Digital Electronics
The decimal number 0.246 in binary is

 0.011011
 0.001101
 0.001111
 0.010111

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Digital Electronics
1 kb represents

 100 bytes
 10,000 bytes
 1000 bytes
 1024 bytes

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Digital Electronics
The hex address of the 256th memory location is

 001FF
 000FF
 00100
 00FFF

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