-----Original Message-----
From: cctalk-bounces at
classiccmp.org
[mailto:cctalk-bounces at
classiccmp.org] On Behalf Of Fred Cisin
Sent: 12 August 2012 23:20
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: To all with interest in IBM 7090
On Sun, 12 Aug 2012, Tony Duell wrote:
> Looking around me, I see :
> Asynchronous serial interfaces using RS232 levels
> Synchronous seiral interfaces using RS232 levels
> Asynchronous serial interfaces using RS232 levels
Did you mean current loop?
I2C
interfaces
CAN bus
The Commodore serial interface bus to printers and disk drives
Trasnputer links Asynchornous current loop interfaces
10MBps ethernet (thinwire and twisted pair)
HPIL interfaces
HP-HIL Interfaces
PC-like keyboard interfaces
DEC LK100 and LK201 keyboard interfaces
Assorted other bit-seiral keyboard interfaces
Even a USB port (on the TV, to update its firmware]
YOU have a USB port!
(My CAR has one (Prius-V))
Although ANALOG, isn't a POTs line serial?
I guess so, as is ISDN but its multiplexed...
Although not electronic, aren't most cashier
queues serial?
These days you also get various flavours of SATA and SAS, Fibre Channel and
FireWire. In fact as speeds rise serial interfaces tend to become the
interfacee of choice.
Dave
P.S. I assume Token Ring and Cambridge Ring are also serial...
PPS And whilst the Terminal/Controller interface on a 3270 may be serial,
the controller itself may interface to the host using the IBM Bus+Tag
channel interface which is a parallel interface....