:
NO! He IS a cartoon character. I am the expert in cartoon characters!
And, if you are really sincere, and have a great pumpkin patch, You Too can see the Great Pumpkin rise up on Holloween night... 8-)
Charlie Brown...
Sorry, Charlie, but I don't sit around in a muddy field at night. I did enough of that in the US ARMY, and its why I have respiratory problems now. The wet sawdust and bullets didn't help, either.
BTW "Sorry Charlie" is related to what cartoon character? ;-)
-- Service to my country? Been there, Done that, and I\'ve got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida
That was another of my nicknames as a kid, Charlie the Tuna! of course, I swam like a tuna, so it was more a compliment than a put-down!
Charlie
Then its a good thing they never wanted to put Charlie in a can. ;-)
-- Service to my country? Been there, Done that, and I\'ve got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida
Yeah, who can forget the reliability and user ease of the '60s. So reliable that we designed mainframes with almost all data paths within the system being parity checked and with elaborate microcode retry mechanisms to work around the detected failures.
I'm sure most people would prefer OS/360 TSO to Win XP too. Even that was a big step backwards from having the machine operator help you feed through punched card decks. I can't imagine how people today cope without the 8" thick paper abend dumps to locate their bugs.
It's sure been a long, strange, downhill trip.
Bob
--
"Things should be described as simply as possible, but no simpler."
A. Einstein
I had a DEC PDP-11 timeshare system that would handle a dozen users, including some high-school hackers, run assemblers and compilers and debuggers and utilities, in 512 kbytes of ram. It would run for months between power failures. 1975, roughly.
John
Surely you mean "...a massive 512 kbytes of ram"?
-- Dirk http://www.onetribe.me.uk/wordpress - The UK\'s only occult talk show Presented by Dirk Bruere and Marc Power on ResonanceFM
I used a PDP-8 as a typewriter for my thesis. I still have the punched tape around here somewhere ;-)
...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC\'s and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
I'd be guessing 512 bytes if it was core.
-- _____ _ _ |_ _| | | | | | | __ _ _ __ ___ | |__| | ___ _ __ ___ ___ _ __ | | / _` | '_ ` _ \\ | __ |/ _ \\| '_ ` _ \\ / _ \\ '__| _| |_ | (_| | | | | | | | | | | (_) | | | | | | __/ | |_____| \\__,_|_| |_| |_| |_| |_|\\___/|_| |_| |_|\\___|_| __ ____ / _| | _ \\ ___ | |_ | |_) | ___ _ __ __ _ / _ \\| _| | _ < / _ \\| '__/ _` | | (_) | | | |_) | (_) | | | (_| |_ \\___/|_| |____/ \\___/|_| \\__, (_) __/ | |___/
By using adb to debug their C++ code?
-- _____ _ _ |_ _| | | | | | | __ _ _ __ ___ | |__| | ___ _ __ ___ ___ _ __ | | / _` | '_ ` _ \\ | __ |/ _ \\| '_ ` _ \\ / _ \\ '__| _| |_ | (_| | | | | | | | | | | (_) | | | | | | __/ | |_____| \\__,_|_| |_| |_| |_| |_|\\___/|_| |_| |_|\\___|_| __ ____ / _| | _ \\ ___ | |_ | |_) | ___ _ __ __ _ / _ \\| _| | _ < / _ \\| '__/ _` | | (_) | | | |_) | (_) | | | (_| |_ \\___/|_| |____/ \\___/|_| \\__, (_) __/ | |___/
How did you put 512K on a PDP-11? I had several (from /23s to /45s) built into various test gear, none had more than 56K core (8K left for I/O). They only had a 16bit address bus.
-- Keith
The first one I bought (a PDP-11/35 in a Tektronix SPS system) was
56K bytes of *core*. They didn't make 512byte planes, nor did they make 512KB PDP-11s, AFAIK.-- Keith
I started timesharing with a PDP-11/20 with, I think, 32K words (64 kbytes) of core, moved up to an 11/45, and, by the time they fired me, was running RSTS/E timesharing on a PDP 11/70 with 256k words of cached dram, a bunch of big disk drives, magtape, DecTape, card reader, paper tape reader/punch, line printers, modems, and a full-time operator. We even interfaced an IBM 029 keypunch machine. The RSTS os would run in native mode or would emulate the RSX-11 or RT-11 operating systems perfectly.
We bought scores of PDP-11s for pipeline control systems, mostly run under the REX rtos authored by, um, me.
John
as
It was an 11/70 with 512 kbytes of dram (Intel 1103's, I think) and memory management hardware. At any one time, a program could see a 64 kbyte code space and a separate 64 kbyte data space, invisibly remapped into physical memory, and swappable/relocatable as needed by the os. Program space was read-only, which Intel is still struggling to accomplish, and Windows can never properly support. The OS was totally invisible from user-mode access, truly uncrashable; the system ran for months at a time.
Most of the bigger 11's had memory management. Even the bigger micro-11's, the Qbus 11/23 and 11/73, could access 512 kbytes of physical memory.
John
IIRC, LSI11/73 (J11 CPU) had 22 bits of physical addres on QBUS. F11 cpu had
18 bits.
You're probably right. It's been a while.
I loved the PDP-11. It taught me how to think.
John
1000x as
edit
Do you remember the OS' name? IAS or RT? Or somebody else's OS?
It was probably a tad later than 1975.
/BAH
Yep. Among other things. They are still manufactured but under a different logo.
/BAH
Brings back memories....I mean nightmares.
I ran the RSTS/E timesharing system on the big 11/70. DEC also had...
DOS-11, like it sounds.
RT-11 junior version of DOS. I think DOS inherited a lot from RT-11
RT-11 sort of like DOS. I think DOS inherited a lot from RT-11
RT-11 sort of like DOS. I think DOS inherited a lot from RT-11
Of course, UNIX was written on and for the PDP-11.
They fired me in early '79, so it wasn't much later.
John
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.