MCA NIMCET Computer Codes Previous Year Question Paper and Solution with PDF

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Qus : 1 MCA NIMCET PYQ

To change upper case to the lower case letter in ASCII, correct mask and operation should be:

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MCA NIMCET Previous Year PYQ MCA NIMCET NIMCET 2009 PYQ

In ASCII, setting the $6^{th}$ bit converts uppercase to lowercase, done by OR with $0100000$.

Qus : 2 MCA NIMCET PYQ

The ASCII code of ‘A’ is

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MCA NIMCET Previous Year PYQ MCA NIMCET NIMCET 2011 PYQ

Character ‘A’ has: • Decimal ASCII → 65 • Hex ASCII → 41H • Binary ASCII → 01000001 Among options, correct match = 41H

Qus : 3 MCA NIMCET PYQ

The minimum number of bits to represent a character from ASCII code set is

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MCA NIMCET Previous Year PYQ MCA NIMCET NIMCET 2013 PYQ

Answer: 7 bits

Explanation: ASCII has 128 characters (0–127). To represent 128 unique codes, we need 2⁷ = 128 combinations. Hence, 7 bits are sufficient.

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