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Digital Electronics

Digital Electronics
Which number system has a base of 16

 Decimal
 None
 Octal
 Hexadecimal

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Digital Electronics
A byte is equal to ________ bits.

 8
 4
 32
 16

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

 001FF
 000FF
 00100
 00FFF

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Digital Electronics
(11011) 2 in BCD 8421 code is

 01101100
 00100111
 11011001
 00011011

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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

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

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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 .

 500 Hz.
 2 KHz.
  1 KHz.
 250 Hz.

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