I'm just learning about Bitcoin and if I understand its conception properly, mining bitcoins means validation of transactions by computing a hash which should satisfy some preset condition. In other words, mining == servicing network and getting money for it.
If Satoshi was the first user, how did he earn his bitcoins if there were no transactions?
I understand, that in the very beginning some geeks were involved in the network, so maybe 5 or 10 persons' (first testers) transactions and their validation (mining) generated a lot of bitcoins, because of the low difficulty and high reward. But how did the very first coins get rewarded?