All Categories MCQs
Topic Notes: All Categories
General Description
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
111
[cite_start]Which of the following has a 16-bit coding scheme? [cite: 485]
Answer:
Unicode
The Unicode standard was originally designed as a 16-bit character encoding system. [cite: 486] [cite_start]This allows it to represent a vast number of characters (up to 65,536), which is necessary to support alphabets and symbols from languages around the world. [cite: 487]
112
Convert the binary number (10000)₂ to decimal.
Answer:
16
This number has a '1' in the 2⁴ position and zeros elsewhere. 1 \* 2⁴ = 16.
113
In Boolean algebra, what does the expression A + B represent?
Answer:
A OR B
The plus symbol (+) is the standard notation for the logical OR operation in Boolean algebra.
114
Which of the following characters is typically invalid in a file name on a Windows operating system?
Answer:
?
The question mark (?) is a wildcard character in Windows and is not allowed in file names. The hyphen, period, and underscore are all valid characters.
115
Convert the decimal number 58 into octal.
Answer:
(72)₈
58 / 8 = 7 with a remainder of 2. The result is 7. Reading from bottom to top gives (72)₈.
116
Which of the following accurately represents the full meaning of the acronym ASCII?
Answer:
American Standard Code for Information Interchange
ASCII stands for 'American Standard Code for Information Interchange'. It is a character encoding standard that was developed in the 1960s. It assigns unique numerical values to various characters, including letters, numbers, punctuation marks, and control characters. This standardization allows different computer systems to represent and exchange text data consistently, ensuring that a character typed on one computer appears the same on another.
117
In ASCII, what does the decimal value 65 represent?
Answer:
The uppercase letter 'A'
In the ASCII standard, the uppercase letters A through Z are represented by the decimal values 65 through 90.
118
Which logic gate produces a high output (1) only when all of its inputs are high (1)?
Answer:
AND
The AND gate functions like a logical "and" condition. The output is true (1) if and only if input A AND input B are both true (1).
119
The ".pdf" extension stands for:
Answer:
Portable Document Format
PDF (Portable Document Format) is a file format designed to present documents consistently across multiple platforms and applications.
120
How do you convert the octal number (74)₈ to binary?
Answer:
(111100)₂
Convert each octal digit into its 3-bit binary equivalent. 7 = 111, 4 = 100. Combine them to get (111100)₂.