Before modern CRTs with ancient VGA connectors, and before fancy video terminals, the display for computers large and slightly smaller was the Teletype. While many of these Teletypes were connected directly, they were designed to be a remote terminal, connected through Ma Bell’s network. [NeXT] over on the Vintage Computer Forums is bringing the iconic ASR33 Teletype into the 21st century by giving this old display a modern way to connect to the outside world.
If you ever see a Teletype in action, it will be connected to a local machine. This was certainly not always the case. The Teletype was designed to connect to remote systems. [NeXT]’s Teletype
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designed for Telex lines, which do not exist anymore. Modems for the ASR33 existed, but good luck finding one. Lucky for [NeXT],nearlyevery modem ever made is backwards-compatible with the BellDataphone, one of the standard ways of plugging a Teletype into a phone line. All [NeXT] had to do was put a modem inside this Teletype.
With relays, transistors, LEDs, and a lot of perfboard, [NeXT] successfully built a circuit that would interface the Teletype’s Call Control Unit to a Hayes Smartmodem tucked away inside the stand. Believe it or not, this is an exceptionally useful build; if you ever find a Teletype tucked away in the back of an old office, in a surplus shop, or on Craigslist, odds are it won’t be compatible with any modern electronics. That’s not to say land lines are particularly modern, but since there’s a microcontroller included in the new circuitry, it’s relatively easy to add a USB port to this ancient terminal.
The ASR-33 is arguably the coolest TeleType.
Here is more information about connecting RS232 serial to the ASR-33:
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How about a schematic? That might be useful too:
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Some articles describe that the I/O interface is different between teletypes, based on serial number (when it was made). That complicates it some.
Reading the article, I came across this video;
Here is a youtube video of a Wang 3300 emulator (from about 1972) connected to an ASR33 via a serial connection. The tty part starts at about 1:40 in:
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is a project to find and treat cases of TB in communities in Nepal and Vietnam.
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is a project to find and treat cases of TB in communities in Nepal Vietnam. read more
The IMPACT TB project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 733174The IMPACT TB IMPACT TB is funded by the European Union
Tuberculosis kills 5,000 people every day and over 1,000 people fall sick with TB each hour. The great majority of these are the poorest members of our society, with limited access to healthcare and no resources to cope with illness. We know that for any infectious disease the best way to control epidemics is either through vaccines or finding and treating every case to prevent transmission. The only TB vaccine, BCG, is not very effective and this has allowed TB to continue to kill millions of people every year. IMPACT TB is a project to find and treat cases of…World TB Day 2018- BNMT Nepal
On March 24, 2018 BNMT Nepal organized World TB Day 2018 at central and district levels conducting various activities in coordination with the government. To promote TB awareness BNMT distributed T-shirts with the slogan, “Wanted: Leaders…
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Dr Andrew Ramsay, with assistance from Research Associate Bhola Rai (BNMT), has been visiting microscopy centres in southern Nepal to assess current facilities and to deliver intensive training and tailored support to microscopy staff in the…
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World TB Day 2018 took place on 24th March and IMPACT TB partners held numerous events to highlight the disease and raise awareness. Karolinska Institutet launched the Centre for TB Research which will be committed to…
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Max Caws is the Principal Investigator of IMPACT TB and a senior TB researcher at the Liverpool School of Tropical Medicine. She was Head of the TB group at Oxford University Clinical Research Unit Vietnam for 11 years and researches diverse aspects of TB including drug resistance, diagnosis, clinical treatment trials, bacterial virulence and host susceptibility determinants. She is currently based in Kathmandu, Nepal. She has a BSc in biochemistry from the University of St Andrews, a PHD in medical microbiology from King’s College, London, where her thesis topic was tuberculous meningitis, and an MSC in epidemiology from the London School of Hygiene and Tropical…
2) Restart the computer (you may do that up to 3 times);
3) Close down Illy and press Ctrl+Alt+Shift/Cmd+Option+Shift during startup (easy but irreversible);
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(follow the link with that name) with Illy closed (more tedious but also more thorough and reversible);
5) Look through and try out the relevant among the
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(follow the link with that name, Item 7) is a list of usual suspects among other applications that may disturb and confuse Illy, Item 15) applies to CC, CS6, and maybe CS5);
Even more seriously, you may:
6) Uninstall, run the Cleaner Tool (if you have CS3/CS4/CS5/CS6/CC), and reinstall.
Hey Jacob, yes I was saying basically I need to be able to move the object a third of what the smallest increment the keyboard will allow me to use. If i do use my mouse and put the shape exactly where I want it to be placed, it just moves back to the spot where I could get it closest with a keyboard, here are some screenshots so you can see what I'm trying to do:
I can't get the black triangle to line up up with the edge of the lighter blude colored shape.
Ah, thanks guys it was the align to pixel grid, I had unselected the "align new objects to pixel grid" option thinking it was applied to my selected object, and I didn't have the "align to pixel grid" option visible. My fault, thanks again.mnhockeycrazy429
You probably no longer need this, however if you zoom in, you can move in that increment based on the ratio... i've run into the same issue before and this is the only way I've found to make it work.eddier90792009
Can you please post the repro steps on how to uncheck the "Align New Objects to Pixel Grid" and "Align to Pixel Grid" as I'm having difficulty trying to find it myself? Thanks!Monika Gause
Select all the objects and then uncheck "ALign to pixel grid"
Then uncheck "Align new objects to pixel grid"
It's in the transform panel.
I already did that but I am still unable to move in small increments. My pixel sizing in Preferences won't reduce to less than 0.01 px. This is so frustrating
Data about population, urbanism, cities: I can’t get enough of it. Last week we saw that people move away from rural areas into the cities in Europe , and four weeks ago we looked at how fast exactly cities grow around the globe. Today, let’s compare numbers on the national level: How many people in a country live in rural areas? How many people live in cities? And of that share –how many people live in the capital?
Before looking at this chart, we might assume that the bigger a country’s population, the smaller the share that lives in its capital. And indeed: Iceland is a small country, and more than 50% of its citizens live in the capital. And China is huge, and a tiny share of its population live in Bejing. Then again, Argentina’s population is greater than Australia’s, but 35% of Argentinians live in Buenos Aires and almost nobody lives in Canberra.
But unfortunately, that’s something we can’t see in this chart. It shows us the relative numbers, but we have not even the slightest idea about the absolute number of people who live in these countries and cities.But unfortunately, that’s something we can’t see in this chart.
If only there was a chart type that solved this problem. Oh wait, there is! The Marimekko Chart . It’s one of those rare chart types that looks simple accessible, but contains a lot of information. One can read a lot of different information out of it. Which information? Let’s untangle that with our capital data:Marimekko Chart looks simple accessible, but contains a lot of information.
In a Marimekko chart, the height of each bar represents an absolute number –in our case, the population of a country. And since each bar has the same width, the area of each bar represents the full population of a country, too. The area of the “Russia bar” tells us that 143m people live in Russia. The area of the “Argentina bar” is approximately a third the size of the “Russia bar”. So we learn that Russia’s population is three times bigger than Argentina’s one:
That’s where it gets interesting: Since the full area of a bar represents the number of people in a country, a share of the bar will represent the number of people falling into this category. It’s genius! We can look at the chart and learn that in Argentina, a bigger share of people lives in the capital than in Japan. But we can also learn that in absolute numbers , there are more people living in the Japanese capital than in the Argentinian one. (To do so, we compare the size of the red areas of Argentina and Japan with each other.) The Marimekko chart shows us what relative numbers mean for the absolute world. It shows us both.
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