What does hashrate mean?
Hashrate is the speed at which a computer is completing an operation in the Bitcoin code. For example, 1GH/s = One Giga Hash = A computer is capable of trying 10^9 or 1000000000 hashes per second.
When calculating the hashrate of the Bitcoin network an average of the last 10 minutes is used, since each block takes roughly 10 minutes to mine or solve.
Bitcoin mining ASIC computers today can compute trillions of hashes per second, so it’s no wonder you aren’t able to mine Bitcoin on your home computer or laptop. In general the greater your hashrate, the more Bitcoin you’ll be able to mine.