Originally Posted by Husar
And besides what Sasaki mentions, there is terminology.
500kb/ps to me means "fivehundred kilobit per picosecond"~;)
let's assume you mean "fivehundred kilobits per second" as in 500kbps or 500kb/s. That is how most connections are advertised.
When you now download something, your download program will most likely show the speed of your download in "kiloByte per second", like 50kB/s.
Now since every Byte consists of eight bits, we are about there because 512kbit/sec(probably the real speed) equals 64kByte/sec and the rest of your loss comes from things Sasaki mentioned like upload(communication always goes both ways), resending of packages, packages taking long ways etc.
If you already knew this, ignore me.:bow: