Re: OT Newsgroup File Size


<george41407@xxxxxxxxxxx> schreef in bericht
news:uu4d635vipu5p4f42bpkk9uocrvq1v3qd7@xxxxxxxxxx
This is sort of off topic, but I was not sure where else to ask.

I dont understand this. When I download a binary file on a newsgroup,
my newsreader (for example, a MP3) shows the file size as
approximately One Meg. But when I download it, it ends up being
around 80 megs. Why does the newsreader show it as 1M when it's much
much larger?

Another thing. When I am downloading a binary or even text messages,
my internet connection button shows bytes sent and bytes received.
For example, right now it shows about 30megs received and 1.4megs
sent. Why does it SEND bytes? What is is sending? I've used the
internet for years and never understood this.

Thanks
George

Mostly, data transfer between any sort of device is done in blocks.
The same is true for internet communication protocols.
Your computer need to send information about what it wants, then
it gets an answer.
After that, data blocks are coming in and your computer needs to
respond to every block saying like "yes I've got it" or "didn't get it,
can you re-send" (ofcourse these things aren't sent as plain text).

This proces is called handshaking.

As for the 1MB / 80MB difference, I am not sure.
Maybe you downloaded a multi-part file where each part is 1MB
in size?
I guess this depends on the newsreader you are using.

regards,
Marcel


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