Why 1Kbps bandwidth is 1000 bits per sec and not 1024 bits per sec?

Question

While solving numerical problems of computer networks, I saw bandwidth of 1Kbps was taken as 1000bps. I was getting wrong answers as I was calculating using 1024bps. What is reason for taking K as 1000 and not 1024 in bandwidth?

Comments

When bandwidth it should be in 10 powers if data it will 2 powers

---

When transmitting 1Kbps is $10^3$bps and while storing 1Kb is 2^10 bits

---

Just remember this point. Whenever the data is traveling take it in power of 10, whenever the data is stored take it in 2 power.