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Digital Electronics

Digital Electronics
8421 code is

 weighted code
 non-weighted code
 alphanumeric code
 self-complementing code

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Digital Electronics
The NOR-NOR realization is equivalent to

 OR-AND realization
 AND-OR realization
 OR-NOT realization
 NOT-AND realization

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Digital Electronics
In flip flop clock is present but in latch clock is

  may be present/absent.
  present always.
  none.
  absent always.

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Digital Electronics
The simplified block diagram of a 10-bit A/D converter of dual slope integrator type is shown in figure. The 10-bit counter at the output is clocked by a 1 Mhz clock. Assuming negligible timing overhead for the control logic, the maximum frequency of the analog signal that can be converted using this A/D converted is approximately .

 2 KHz.
 500 Hz.
 250 Hz.
  1 KHz.

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Digital Electronics
Transfer of data from one register to another register is known as ________ register operation.

 Inter
 Inside
 Intra
 In between

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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.

120 CPS
12 CPS
None of these
10 CPS

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