human
I've heard a lot of people talking about the Y2K bug. What is it?
assistant
The Y2K bug was a problem that could have occurred in computer systems around the year 2000, caused by the fact that computers store numbers as binary digits (bits). When a computer processes a number, it uses a series of bits to represent the number. In the early 1900s, when computers were first invented, they used a different set of bits than today's computers use. So if you had a number like 123, which has 3 digits, and you wanted to convert it into binary, you would need 3 bits. But since computers only used 2 bits back then, there was no way to represent all possible numbers using just two bits. This meant that if you tried to process a date like 12/31/99, the computer might not be able to handle it correctly.