Binary System — Set 6
Computers · बाइनरी सिस्टम · Questions 51–60 of 60
How many binary bits are needed to represent the decimal number 16?
Correct Answer: B. 5 bits
A 4-bit number can only reach up to 15 (1111). To represent 16, you need a fifth bit, making the binary number 10000. Each additional bit doubles the range of numbers that can be represented.
Binary numbers are most often used in which type of equipment?
Correct Answer: C. Digital Computer
Digital computers use transistors to process electrical signals as binary data. This allows for extremely fast and accurate calculations compared to analog systems. Binary is the fundamental language of all modern electronics.
Which logic gate outputs a 1 if either one or both inputs are 1?
Correct Answer: B. OR Gate
The OR gate is true if at least one input is high. Only when both inputs are 0 will the OR gate output a 0. It is a fundamental operator in both computer science and general logic.
What is the binary addition of 1 + 0?
Correct Answer: B. 1
In binary addition, 1 + 0 equals 1. This follows the same basic rule as decimal addition. There is no 'carry' required for this simple calculation.
What is the decimal equivalent of the binary number 10?
Correct Answer: B. 2
Binary 10 represents the value 2 in the decimal system. The '1' is in the second position, which has a weight of 2^1. This is the simplest multi-digit binary number.
Which system is the base-10 number system that humans use daily?
Correct Answer: C. Decimal
Decimal is the system we use every day, which has ten digits (0 to 9). Computers must convert our decimal numbers into binary to process them. The term 'decimal' comes from the Latin word for ten.
In a binary number, which bit is on the far right side?
Correct Answer: B. LSB
The Least Significant Bit (LSB) is the rightmost bit with the lowest value. It represents 2 to the power of 0, which is 1. It is the bit that decides if the whole number is even or odd.
What is the binary equivalent of decimal 4?
Correct Answer: B. 100
The number 4 is written as 100 in binary because it occupies the 2^2 position. This follows the rule of binary positional weights: 1, 2, 4, 8, 16. It is a common benchmark number in binary tutorials.
Which logic gate is known for outputting 1 only when inputs are different?
Correct Answer: C. XOR Gate
The XOR (Exclusive OR) gate is unique because it outputs 0 if both inputs are the same. It only outputs 1 if one input is 1 and the other is 0. This gate is used extensively in data encryption and parity checking.
How many total bits are in a Kilobyte (KB)?
Correct Answer: D. 8192
One Kilobyte is 1024 bytes, and each byte has 8 bits. Multiplying 1024 by 8 gives a total of 8192 bits. This distinction between bytes and bits is important for understanding internet speeds and file sizes.