How much is 2 KB?

2 KB is 2 kilobytes. A byte is a group of 8 binary digits giving 256 possible combinations of on/off states. Normally kilo means 1000 but in computers it means 1024 because 1024 is a power of 2 that is 210 = 1024. Everything in computers is based on the number 2 because switches, which is what a computer actually is, can only have 2 states, on and off. 2KB is therefore 2048 bytes (characters) This is about an A4 page of ordinary text.