If it took your computer 1.0 seconds or longer to receive the file, then the first test calculation provided your final result. We performed the first test by sending a 150KB file to your computer and recording the amount of time it took for your computer to receive it. Your Internet connection speed was calculated with 1 or 2 tests, depending on how fast your computer received the first file. How did you calculate my Internet connection speed? If you had digital subscriber line (DSL), the same 1MB file would take approximately 10 - 20 seconds.
For example, if you had a 28.8K (28,800 bps) modem, then it would take at least 4 - 5 minutes to download a 1MB file. Nowadays with the technological improvements in data transfer speeds, Internet connection speeds can also be measured in Mbps (megabits per second, or millions of bits per second) or MBps (megabytes per second). Internet connection speeds are usually measured in Kbps (kilobits per second, or thousands of bits per second) or KBps (kilobytes per second). Basically that means the amount of time it takes your computer to download a given amount of data. Internet connection speed refers to the data transfer rate from the Internet to your computer. In any case, their results are totally wrong. Is it possible they aren't actually measuring the time to my computer, but rather to some intermediate point in the ISP's network? That's the only possibility I can think of.