20 Jul
2010
20 Jul
'10
11:28 p.m.
At 11:16 AM 7/20/2010, Liam Proven wrote:
All fair points, but then, who ever used serial ports
to connect mass
storage? (I know there was a serial port hard disk for the first ever
Mac, but that was from complete lack of any alternative.)
I can think of the Commodore 64- 1541 drive and the external floppy drive
for the Tandy Model 100.
At 11:21 AM 7/20/2010, Ray Arachelian wrote:
Works beautifully under VMWare Fusion. And when I did
have to use
windows, it worked nicely under VMWare server.
I was referring to ESXi, the small-to-medium enterprise version.
At 12:00 PM 7/20/2010, Ethan Dicks wrote:
Generic cables? The ends are generic, sure, but
there's A, B, mini A,
several types of mini B (one dominant, but hardly unique), and then
there's USB 1.1 vs USB 2.0 in terms of cable ratings (but will a USB
1.1-marked cable pushed to 2.0 speeds really be too noisy or is that
just marketing?) I have no less than 5 flavors of USB cables lying
around the house, though two of the 5 are the most common.
Plus the variations and quirks in terms of the power requirements for
various devices. There's wall transformers with USB connectors that
don't supply enough power for some devices, some PC ports that don't
supply enough power, some hubs that that don't, some devices that
come with dual USB connectors in order to suck more amps, etc.
- John
21 Jul
21 Jul
11:54 p.m.
On 21 July 2010 00:28, John Foust <jfoust at threedee.com> wrote:
At 11:16 AM 7/20/2010, Liam Proven wrote:
Um, that wasn't any relative of RS422, RS423, RS232 or anything akin
to it, was it? I thought it was some serialised variant of an IEEE
interface, as used on the PET machines...
All fair points, but then, who ever used serial
ports to connect mass
storage? (I know there was a serial port hard disk for the first ever
Mac, but that was from complete lack of any alternative.)
I can think of the Commodore 64- 1541 drive and the external floppy drive
for the Tandy Model 100.
This one I didn't know about, but Tandy machines were never very big
this side of the Atlantic. /Way/ too expensive for most Brits.
--
Liam Proven ? Profile & links: http://www.google.com/profiles/lproven
Email: lproven at cix.co.uk ? GMail/GoogleTalk/Orkut: lproven at gmail.com
Tel: +44 20-8685-0498 ? Cell: +44 7939-087884 ? Fax: + 44 870-9151419
AIM/Yahoo/Skype: liamproven ? MSN: lproven at hotmail.com ? ICQ: 73187508
22 Jul
22 Jul
5:49 p.m.
On 21 July 2010 00:28, John Foust <jfoust at threedee.com> wrote:
No, but it most certainly was a bit-serial interface. As, for that
matter, is USB. And HPIL (which was used for at least one mass storage
device, and is logically related to a bit-serial version of HPIB).
If you mean a serial interface using RS232 levels, then at least on this
list it's best to say so. Do you insist that it's asynchronous, or are
synchonous RS232 interfaces included (IIRC the RML480Z used one for its
floppy disk system)
At 11:16 AM 7/20/2010, Liam Proven wrote:
Um, that wasn't any relative of RS422, RS423, RS232 or anything akin All fair points, but then, who ever used serial
ports to connect mass
storage? (I know there was a serial port hard disk for the first ever
Mac, but that was from complete lack of any alternative.)
I can think of the Commodore 64- 1541 drive to it, was it? I thought it was some serialised
variant of an IEEE
interface, as used on the PET machines...
Err, considering there was a shop selling them on just about every high
street, I asusme some people (other than me) actually bought them.
-tony
and the external floppy drive
for the Tandy Model 100.
This one I didn't know about, but Tandy machines were never very big
this side of the Atlantic. /Way/ too expensive for most Brits. 
24 Jul
24 Jul
2:17 a.m.
On 7/22/2010 12:49 PM, Tony Duell wrote:
Serial, yes, but
async, no. It had a CLK and DATA line, plus an ATN line.
Many people say it's just a serial version of the IEEE protcol, and I
guess you could call it that, but it's somewhat inconsistent, in my
opinion. It has a dedicated ATN line, but many of the other signal
lines are "emulated" by various sequences of CLK/DATA transitions.
Jim
On 21 July
2010 00:28, John Foust<jfoust at threedee.com> wrote:
No, but it most certainly was a bit-serial interface. At 11:16 AM 7/20/2010, Liam Proven wrote:
Um, that wasn't any relative of RS422, RS423, RS232 or anything akin
All fair points, but then, who ever used serial
ports to connect mass
storage? (I know there was a serial port hard disk for the first ever
Mac, but that was from complete lack of any alternative.)
I can think of the Commodore 64- 1541 drive
8:01 p.m.
I can think of
the Commodore 64- 1541 drive
Um, that wasn't any relative of RS422, RS423, RS232 or anything akin
Many people say it's just a serial version of the IEEE protcol, and I
guess you could call it that, but it's somewhat inconsistent, in my
opinion. It has a dedicated ATN line, but many of the other signal
lines are "emulated" by various sequences of CLK/DATA transitions.
HPIL is perhaps closer to a 'serial IEEE-488 interface'. Althougb
electrically very different (it's not a bus, it's aloop, each peripehral
passes the data on to the enxt one), logically almost all concepts
transfer between the 2 intefaces. To the extent that for many
applications the HP82169 HPIL-HPIB translator is truely 'plug and play'.
-tony
5285
days inactive
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days old
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