* Posts by egbert

9 publicly visible posts • joined 6 Jun 2011

Psst … Want to buy a used IBM Selectric? No questions asked

egbert

IBM 1403 Print Chain

In the early 1980s the system manager for an IBM mainframe I used was browsing through the "Barras" in Glasgow's east end (en.wikipedia.org/wiki/The_Barras) when he came across a "print train" for an 1403 line printer for sale on some stall. This is a heavy mechanical lump in which a train of characters rotates at high speed to allow the printer hammers to type text on old fashioned fan fold paper. It probably weighed a good few kilos and was seriously expensive. Not the sort of thing that you expect at a random market. Not only that, but like most IBM hardware of the era, it could not be bought - only leased from IBM.

Without the surrounding printer it was, of course, completely useless for anything except perhaps tying to bodies being dumped in the Clyde.

He took a note of the serial number and phoned his local IBM contact who confirmed that, yes, it had been stolen from a mainframe installation somewhere. A call was made to the local police...

Mozilla browser Firefox hits the big 100

egbert

Re: Scrollbars?

Yes, I use them.

1. It's faster to scroll down a long page/document looking for something. Both the scroll wheel and trackpad gesture end up with you repeating the same action over an over. RSI is the result.

2. As you say, visible scroll bars tell you when there is something else to see, and how much of it there is. When first using the dreadful modern Windows "settings" abomination, I frequently could not find a control for what I wanted because I failed to notice the wafer-thin "scroll bar" on the right that indicated there was more off the bottom of the screen. I say "scroll bar" because it looks more like just the edge of the window. All this was not helped, of course, by the fact that all the controls were in new, unfamiliar places and many control were actually not there at al (and existed only in the legacy control panel items).

Now you can argue:

- There are other ways to find something in a long document. But why remove something that worked?

- You can move the mouse over to the right hand edge to expand the scroll bar so that it is visible. This only works if you suspect that there might be something there. The thin scroll bar leads you to think there isn't.

- The settings app has been accumulating more controls so that what you want is probably actually there. Great until they add more controls that you didn't know exist.

A theme/style selection can allow the user to force the bars to always appear just unbreaks a broken interface design.

The Ministry of Silly Printing: But I don't want my golf club correspondence to say 'UNCLASSIFIED' at the bottom

egbert

Re: Back in the early 90's

My recollection was that they were always called windows. I worked with windows based interfaces on Apollo (remember them?), Mac and DOS plus TopView. They always called them windows.

Also, the XEROX Alto User Manual from September 1979 calls them windows.

I remember when MS came out with MS Windows 1.0 everyone thinking they had a real cheek calling it that.

Did I or did I not ask you to double-check that the socket was on? Now I've driven 15 miles, what have we found?

egbert

Re: My favourite

Oh god yes. I completely gave up on using any kind of programmable remote because it was impossible to have a sequence that would get to a guaranteed state (e.g. TV and sound bar on).

As someone else has said they could at least have a code for power on, even if the bog standard remote only sends a toggle.

The latest Sky Q remotes have an equally annoying stupidity. The old (original and Sky+) remotes could control the TV as well as the Sky box using the "TV" button. So TV then Power would toggle the power state of the TV whereas Sky then Power would toggle the state of the Sky Box. OK, it was slightly annoying to have to press two buttons (since just pressing power would affect either the TV or Sky depending on what you last did), but at least you could get a guaranteed result each time.

The new Sky Q remotes don't have a "TV" button. Instead, if you want to toggle the Sky power state you just press the Power button but if you want to toggle the TV state you must press and hold the power button for a few seconds and it will eventually toggle the TV state. Leaving aside the fact that this action is non intuitive when you first see the remote (it was some time before I found out about it), it is really annoying even when you do know what it does.

The problem is how long do you have to push the button for? Too short and you will accidentally toggle the Sky state. To long and you stand there like an idiot getting cramp in your finger.

Part of the problem is that different TVs behave differently. Is the TV you are looking at one that has a stand by LED that goes out when it is powering on or is it one that has no LED when off and has one that comes lights up when powered on? I've got 4 TVs in my house and they all have different behaviour and I can never remember which is which. Sometimes you just have to sit there with your finger on the remote until the TV gets through its incredibly long power up sequence and shows a picture.

Of course, you might think that this saves both the space for and cost of a button on the remote. Only it doesn't. That funky "Sky" logo at the top of the remote? Yes, that's a button as well(*) and it has exactly the same effect as the "Home" button. The cost and space would have been better used on a dedicated TV button.

Do the designers of these things ever actually run their designs past real users?

(*) It was a *long* time before I realised that.

Are you sitting comfortably? Then we'll begin. Hang on, the PDP 11/70 has dropped offline

egbert

Careful with that book Eugene

In the early 80s the physics department where I was doing a PhD replaced their IBM 370/145 (with its sizeable front panel full of knobs, buttons and der blinkenlights) with a sleek new IBM 4331.

Not only was the CPU only about the size of a domestic chest freezer (compared to the several wardrobes of the 145) but there was no front panel. In its place was only the 3270 style "green screen" operator display with a separate keyboard. All of the machine operation features that had previously required the panel were now accessible through the screen and keyboard, complete with dedicated large buttons along the top right for IPL, Halt and Go.

One day, I was sitting in the terminal room, with half a dozen other users, doing some editing on a program (FORTRAN of course), when all of the terminals stopped responding. This was not an uncommon occurrence if the machine was heavily loaded but after a while it was obvious that something had happened. I went downstairs to the computer room (attempts by the operators to keep users out had been given up years before) to see all of the operators crowded round the terminal discussing whether they would have to restart to solve the problem.

This would have been a disaster. Not only would all the users currently working lose their editing sessions but any running batch jobs would be lost. CPU time was precious and a program might be 90% way through a run of several hours.

However, I happened to notice that there was a large manual open on the operators desk with one side resting on the top of the console keyboard. I gently(*) suggested to them that they might remove the manual and just press the "go" button. The machine instantly burst into life.

Very quickly after that the departmental lab technicians machined a 20 pence aluminium guard to stop the very expensive mainframe suffering the same fate again.

(*) OK, I marched in and said "why don't you just lift the stupid manual up and press go?", much to the annoyance of my computer operator girlfriend (now wife). For some reason she thinks physicists are arrogant.

Happy 60th birthday, video games. Thank William Higinbotham for your misspent evenings

egbert

Man (well, school children) vs Machine

When I was a student working in London during summer holidays in the mid 70s, I used to hang out at the Science Museum quite a bit. By chance, I met a chap from whichever University the Science Museum terminal was attached to. It may have been Imperial College but I'm not sure.

He told me that that there was an arms race between the programmers and the visitors. As other have said, when the program got to its last node on the tree, it would ask, for example "is it a chimpanzee". If the user said (typed) "No" then the program would ask what it was and for a distiguishing question like "Does it have four legs".

Unfortunately, many visitors liked to put in animals with colourful adjectives, so that the final question would be "Is it a f*****g giraffe?".

The programmers put in a list of swear words that were banned but, of course, the visitors responded by interspersing the letters with spaces or * characters or by using foreign swear words or words that just sounded rude.

In the end they had just resorted to manually reviewing a list of newly added animals each day.

The award for worst ISP goes to... it starts with Talk and ends with Talk

egbert

Re: Skie

Moved to Sky ten years ago. Old broadband (Wannadoo) got cut off, New Sky router wouldn't connect. Called support. Offshore call centre - crappy line quality. "Just be patient, it sometimes takes a while". 24 hours later, still no service. Call support again - made to go through the dreaded script - "Is the router plugged in to the mains?...". Still not working. Told to wait another 24 hours.

Downloaded hack from internet (by dialing up my work and using their broadband) that allowed me to see the PPP username/password (Sky hid it from users in those days) and used that to setup another router/modem. Still didn't work.

After about 4 days of this, phoned their sales team and told them I was cancelling unless they sorted it out immediately. They gave me a number to call.

Called the number. Scottish voice "Hello?". There then followed 30 seconds of brisk "Have you tried X, have you tried Y?,..." followed by "It's a line fault, I'll get an engineer out".

Service working next day.

Call centre following a script 0/10

Eventual person who actually knew what they were doing 10/10

Brit CompSci student faces extradition to US over link site

egbert
Boffin

...because they can't

"One that note, why is it that the BBC do not have some online uber-archive of tv shows/radio shows where people can simply "dip-in" [...] I want to watch something I paid for through the tv license"

Simple. Copyright.

The BBC does not own the rights to everything in the programmes it makes. There are many issues.

First there is music. Often the background or theme music is not written specially but is commerical music for which a fee is paid for specific purposes such as a single broadcast. Allowing the programme to be repeated or freely accessible means that the fee has to be renegociated. An example of this is that the intro for Pink Floyd's "Shine on you crazy diamond" was used to great comic effect in the original radio broadcasts of the HHGTTG. When the beeb issued the entire series on CD they decided they could not afford the fees for it to be allowed to reuse the music and so that joke has been cut. Shame.

Then there are the actors. Actors have to be paid fees for repeat showings. Sometimes the stars of the show retain control over repeats. Famously, Martin Shaw allegedly did not allow "The Professionals" to be repeated for a very long time. I recently read an interview with Rodney Bewes in which he bemoaned the fact that the Likely Lads were not being repeated for similar reasons.

There are even issues with still images and photos. If any program is repeated it has to be examined for possible copyright issues. Often the original copyright holders cannot be traced and this is one of the reason behind the wishes of the BBC and others that there should be provision for overriding the copyright on "orphaned works".

Sorting this all out is, of course, expensive so that is costs money even if no actual fees need to be paid.

'Dodgy Android apps are breaking our phones' - Motorola

egbert
Boffin

Not Necessarily

Without knowing the detailed numbers (lacking from the article) it is impossible to know. However, here are some *made up* numbers that would be consistent both with your experience and with what the man-from-Motorola said:

- 0.01% of all phones (both Motorola and HTC) are returned as faulty

- 70% of those returns (ie 0.007% of all phones) are returned with faults due to apps.

You have one of the 99.99% of phones (Motorola and HTC) that has not gone faulty. By contrast, the Motorola man has seen and reported on the fate of a sample of the remaining 0.01% of phones.

So it *could* be that Motorola and HTC phones are of equal quality AND your experience of HTC is "typical" AND the man from Motorola is speaking the truth.

Ah, so why do you not get problems when your turn over of apps is "probably a lot higher that a lot of people"?

Who knows? Perhaps the 0.01% are owned by people with peculiar "artistic" interests.

The point is that, without the full information we don't know and, as Ben Goldacre likes to say, "the plural of anecdote is not data".