In article <200605041711450053.0C06A9F8 at 10.0.0.252>,
"Chuck Guzis" <cclist at sydex.com> writes:
On 5/4/2006 at 4:22 PM Richard wrote:
I would go further and say that terminals
themselves are becoming
extremely rare.
In point of fact, when was the last terminal manufactured that didn't
contain a microprocessor of some sort? Early-mid 70's maybe?
Yep. <http://en.wikipedia.org/wiki/8008>
"The Intel 8008 was an early microprocessor designed and
manufactured by Intel and introduced in April, 1972. The 8008,
originally codenamed 1201, was originally commissioned by Computer
Terminal Corporation for use in its Datapoint 2200 programmable
terminal, but because the chip was delivered late and did not meet
CTC's performance goals, the chip was not used in the 2200. An
agreement between Intel and CTC permitted Intel to market the chip
to other customers."
So not only were terminals quick to turn to microprocessors over
SSI/MSI logic (hell, who wouldn't?), but microprocessors themselves
owe some of their legacy to terminals.
After that, the difference between a PC and a terminal
is largely a matter
of degree--witness the large number of manufacturers (Televideo, Beehive,
DEC, etc.) who said "You know, if we just drop a disk drive and some more
memory into this thing, we'd have a PC".
Sure, but there was a period when the quality of text and graphics
displayed on terminals exceeded that displayed on PCs. The HP2621 has
a font that is extremely easy on the eyes. PC font rendering in text
mode wouldn't catch up for a long time and there's even some question
of whether or not the font rendering in GDI is comparable in quality.
Depending on the terminal, you could say that the PC didn't catch up
to all the architectural features of terminals until the graphics cards
with HW transformation and lighting appeared. And that wasn't too long
ago -- 2000? But that's a little unfair as most terminals were geared
towards text applications and not graphics applications. Graphics
terminals are a very interesting breed. They flourished in the window
of opportunity between the wave of minicomputers and the wave of
workstations. A minicomputer and a graphics terminal (i.e. PDP-11/03
+ Tektronix 4010) was some pretty hot shit for a small organization in
1975. By the time 1986 rolls around, that same organization would
probably be buying a workstation to do the equivalent work.
When I moved from a terminal to a PC connected as a
terminal, I thought I'd
gone to heaven. I don't miss terminals at all.
All my cctalk messages have been composed in vi through a *nix shell
session connected to my PC via a telnet session in CRT v2.2 from
<http://www.vandyke.com>. In a day-to-day sense, although I still use
character-based applications on a daily basis (email and usenet),
they're all used via a terminal program running on my local PC. Copy
and paste into serial sessions is a dogsend :-).
I only miss terminals in a nostalgic sense. They were the "face of the
computer" when I learned programming in 1978 at the University of Delaware
(I wasn't a student there yet; I was 13). I started on the LA-36,
then moved to the CRTs made by Beehive and occasionally used a VT-52,
VT-100 or HP2648A. When I needed "letter quality" printing for my high
school English class, I used the IBM 2741 to print out my output from
RSTS/E's RUNOFF. I got into graphics after using the Tektronix 4010.
If it weren't for the 4010, I'd probably be something like a chemist or
chemical engineer now, I don't know if I would have stayed with software.
By the time I was a student at
udel.edu in 1982, they had switched to
Zenith Z-29s and HP 2621s as their terminal of choice. Terminals with
attached Epson FX-80 era/style printers were available for hardcopy,
or you could submit it to a laser line printer. By the time I graduated
in 1986, they were just starting to transition to workstations for their
student computing labs (research offices already had them or PCs).
When I got to
utah.edu in 1988, the CS department had facilities that
were almost exclusively workstations (mostly HP9000/680x0 workstations
with a
utah.edu port of bsd; Robert Kessler had gotten a $5 million
equipment grant from HP). The public computing labs had PCs and Macs.
There were still some Teleray 10s around the department in graduate
student offices for doing work when the workstations were busy.
--
"The Direct3D Graphics Pipeline"-- code samples, sample chapter, FAQ:
<http://www.xmission.com/~legalize/book/>
Pilgrimage: Utah's annual demoparty
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