Multiple choice

There is ASCII to change upper case to lower case letter, the correct mask and operation should be

  1. 0100000 and NOR

  2. 0100000 and OR

  3. 0100000 and NAND

  4. 1011111 and AND
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In ASCII, uppercase letters (e.g., 'A' is 01000001) and lowercase letters (e.g., 'a' is 01100001) differ by the 6th bit (value 32 or 00100000). Setting this bit to 1 using an OR operation converts uppercase to lowercase.

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