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Digital Electronics

Digital Electronics
EBCDIC code is a

 8-bit code
 7-bit code
 10-bit code
 5-bit code

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Digital Electronics
Which of the following memories uses one transistor and one capacitor as basic memory unit

 Both SRAM and DRAM
 DRAM
 None
 SRAM

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Digital Electronics
How many bits are required to store one BCD digit ?

 3
 1
 4
 2

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Digital Electronics
The fast logic family is

  TTL.
  DRL.
  ECL.
  TRL.

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Digital Electronics
Among the logic families, the family which can be used at very high frequency greater than 100 MHz in a 4 bit synchronous counter is

TTLAS
ECL
CMOS
TTLLS

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Digital Electronics
The number of 1 in 8-bit representation of 127 in 2’s complement form is m and that in 1,s complement form is n. What is the value of m:n?

 1:2
 2:1
 1:1
 2:3

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