How many unique characters can be represented using the standard ASCII code?

Correct option is A

The correct answer is (A) 128.

Explanation:

• The standard ASCII code uses 7 bits to represent characters, allowing for 128 unique characters.
• These characters include control characters (like newline, carriage return, etc.) and printable characters (letters, digits, punctuation marks, etc.).

Information Booster:

• The standard ASCII uses 128 characters, and these are numbered from 0 to 127.
• The extended ASCII code uses 8 bits (1 byte), allowing for 256 characters. This includes additional characters for accented characters, symbols, and characters used in non-English languages.

Additional Information:

• Standard ASCII:
• Range: 0 to 127
• Includes control characters (0–31) and printable characters (32–126).
• Control Characters: Examples include NULL, ESC, BEL, etc.
• Printable Characters: Examples include A-Z, a-z, 0-9, punctuation marks, etc.
• Extended ASCII:
• Range: 128 to 255
• Allows for additional characters like accented characters (é, ñ), currency symbols (€, £), and special graphical characters (like box-drawing characters).
• Extended ASCII is a superset of standard ASCII, and it includes international characters.