DIGITAL ELECTRONICS QUIZ

Which of the following codes is known as the 8421 code?

BCD code

XS-3 code

ASCII code

Gray code

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Each term in the standard SOP form is called a

literal

maxterm

minterm

don’t care

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Which of the following shows the correct attachment of even parity bit to the data 00001001?

000010011

000010010

100001001

000001001

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If 4 input MUXes drive a 4 input multiplexer, it results a

16 input MUX

8 input MUX

4 input MUX

6 input MUX

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The state of a flip-flop can be switched by changing its ________ signals.

clearing

input

triggering

output

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Most of the digital computers do not have floating point hardware because

Floating point hardware is costly

Of no specific reason

It is slower than software

It is not possible to perform floating point addition by hardware

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In which of the following base systems is 123 not a valid number?

Base 8

Base 10

Base 16

Base 3

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The XS-3 code is a

self-complementing code

weighted code

error-correcting code

cyclic code

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Which of the following gate is a two-level logic gate

EXCLUSIVE OR gate

NOT gate

NAND gate

OR gate

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Digital circuit can be made by the repeated use of ___________

NOT gates

OR gates

NAND gates

None of these

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