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- Path: ausnews.austin.ibm.com!usenet
- From: rcl90@
- Newsgroups: comp.dcom.modems
- Subject: Re: 16550 UART
- Date: 29 Jan 1996 17:41:08 GMT
- Organization: IBM Austin
- Message-ID: <4ej0rk$ah4@ausnews.austin.ibm.com>
- References: <DLwKt8.D06@netcore.ca>
- Reply-To: rcl90@
- NNTP-Posting-Host: rcl90.austin.ibm.com
- X-Newsreader: IBM NewsReader/2 v1.2
-
- In <DLwKt8.D06@netcore.ca>, hr25@netcore.ca (Alan Henderson) writes:
- >I have a 28,800 SupraExpress E and my technical adviser tells me I
- >really don't have to upgrade to a 16550 UART serial port unless I plan
- >to do a lot of multitasking. Any thoughts?
- >
-
- You did not mention your OS but probably any real multitasking OS would
- require (or atleast benefit from) the 16550 UART. OS/2 for one. The 16550
- has buffered I/O (16 or 32 bytes, I don't remember which) which allows the
- multitasking OS to service the serial port in a more efficient manner, not
- limited to having to switch to that task every single time there is a character
- on the port to be read/written.
-