Binary System — Set 5
Computers · बाइनरी सिस्टम · Questions 41–50 of 60
A bit is the abbreviation for which of the following?
Correct Answer: B. Binary Digit
The word bit was created by combining the 'bi' from binary and the 't' from digit. It is the most fundamental unit of information used by all digital devices. Every piece of data you see on a screen is made of millions of these bits.
How many bits are in a single Byte?
Correct Answer: A. 8
A standard byte consists of 8 bits. This size was established to provide enough combinations to represent all English alphabet characters and symbols. It is the basic unit for measuring file sizes and memory capacity.
The base-2 number system is commonly known as?
Correct Answer: C. Binary
Binary is the system used by computers because electronic circuits can easily represent two states: on and off. While humans use base-10, machines process everything using these two digits. This system is the language of the modern digital age.
Which of the following digits are used in the binary system?
Correct Answer: B. 0 and 1
Binary uses only two symbols: 0 and 1. There are no other digits like 2 or 3 in a pure binary expression. This simplicity makes it highly reliable for electrical signaling over long distances.
What is the decimal equivalent of the binary number 100?
Correct Answer: B. 4
In binary, the positions from right to left represent 1, 2, 4, and so on. The number 100 has a '1' in the third position, which means it equals 4. Positional weights are essential for converting binary to decimal.
What is the decimal equivalent of the binary number 111?
Correct Answer: B. 7
Binary 111 represents 4 + 2 + 1, which equals 7. It is the largest value that can be stored in a 3-bit space. Calculating the sum of positional weights is the standard method for binary conversion.
Which logic gate is used to invert a binary digit?
Correct Answer: C. NOT Gate
The NOT gate takes one input and produces its opposite as the output. If you feed it a 1, it outputs a 0, and if you feed it a 0, it outputs a 1. This gate is the simplest building block of logical reasoning in circuits.
What is a group of 4 bits called?
Correct Answer: B. Nibble
A nibble is half of a byte and contains 4 bits. It is frequently used to represent a single hexadecimal digit. In early microprocessors, 4-bit architectures were quite common.
Which logic gate gives an output of 1 only if both inputs are 1?
Correct Answer: A. AND Gate
The AND gate requires both conditions to be true to produce a true output. In binary terms, 1 AND 1 equals 1, but 1 AND 0 equals 0. This is the hardware equivalent of 'and' in human language.
What is the decimal value of the binary number 1010?
Correct Answer: C. 10
Binary 1010 corresponds to 8 + 0 + 2 + 0, which equals 10. The positions are 2^3 (8) and 2^1 (2). This is one of the most common binary patterns students are taught to recognize.