-bin.001 Files

[Rob Best]

On my mysql servers, I've noticed some unexpected files in the 
/usr/local/mysql/data/ directory.
Specifically, I have files like:
<hostname>-bin.001
<hostname>-bin.002
<hostname>-bin.003
etc. (obviously with <hostname> being replaced with the name of the 
computer)

I also have files like...
innodb.status.410
innodb.status.411
innodb.status.412
etc.
What ARE these files (I assume some sort of log files) and do I 
want/need them around? Some are small and some are quite large.

Thanks!
ps. mysql version: 4.0.20, OS version: MacOS X Server 10.3.5
 Robert C. Best III     - [EMAIL PROTECTED]
 Instructional Technology Coordinator
 for N.E.R.I.C. at Potsdam Central School
 Phone: (315) 265-2000 x266