1000 equals 1kg but in computer 1024 equals 1kb difference is 24b explain it with valid reason?

Answer 1

There are 1,000 grammes in a Kilogramme. However, computers work on the binary system (base 2). The nearest number to 1000 in binary is 1024 (2x2x2x2x2x2x2x2x2x2). Therefore 1KB is slightly more than 1000 bytes.

Answer 2

In SI, and in general usage, "kilo" means thousand, but in computer science, this is often rounded to 1024. This is because 1024 is a power of 2, and powers of 2 are very important in computer science. Similary, "Mega" may mean 1024 squared, etc.

Note: storage capacities are often indicated in the binary units (e.g., 1024 for "kilo"), but for data transfer, the decimal (or standard) definition is used. For example, a transfer rate of 1 Mbps (megabits per second) is an exact million.