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Digital Electronics

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

 2
 3
 4
 1

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

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Digital Electronics
1s Complement of 11001010 is

 11001001
 00110111
 00110101
 11001011

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Digital Electronics
A read only memory in which the present contents must be erased before the new information can be stored is

 EAROM
 ROM
All of these
 PROM

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Digital Electronics
Which is typically the longest: bit,byte,nibble,word?

 bit
 nibble
 byte
 word

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Digital Electronics
When two n-bit binary numbers are added then the sum will contain at most

 n-bit
 (n + n)-bit
 (n + 2)-bit
 (n + 1)-bit

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