Re: Relational vs network vs hierarchic databases
From: Tony Douglas <tonyisyourpal_at_netscape.net>
Date: 10 Nov 2004 03:51:38 -0800
Message-ID: <bcb8c360.0411100351.b6cee45_at_posting.google.com>
Date: 10 Nov 2004 03:51:38 -0800
Message-ID: <bcb8c360.0411100351.b6cee45_at_posting.google.com>
"Dan" <guntermann_at_verizon.com> wrote in message news:<MW5kd.951$2h7.843_at_trnddc03>...
<snip>
> Why do we have an OSI model that divides the requirements of communication
> into seven layers, but rarely does a protocol stack consist of 7 layers when
> implemented?
Because the OSI 7-layer model was futzed with to accommodate TCP/IP ? ;)
Don't you end up with the full 7 layers anyway ? Some of the layers are specific to particular applications rather than the general protocol stack, no ?
- Tony