JAMIA 2025 — Computer PYQ

Mathematical Relationship of Units

Memory units increase in size based on powers of 2. The relationship between a bit and other common units can be expressed as follows:

1. Nibble: A group of 4 bits.

   $$\text{1 Nibble}=4\text{ bits}$$

2. Byte: The standard unit for measuring data (a group of 8 bits).

    

   $$\text{1 Byte}=8\text{ bits}$$

3. Kilobyte (KB): Traditionally 1,024 bytes.

   $$\text{1 KB}=2^{10}\text{ bytes}=1,024\text{ bytes}$$

Memory Hierarchy Table

Here is the progression from the smallest to larger units:

Unit	Size in Bits	Abbreviation
Bit	1 bit	b
Nibble	4 bits	-
Byte	8 bits	B
Kilobyte	8,192 bits	KB

Conclusion

If your options include Bit, Byte, Nibble, and Kilobyte, the correct answer is Bit.