Re: [Dorset] Links from 2019-07-02's Pub Meet.
Hi Tim, > Incidentally, a pair of floppy disk drives with PSU, interface card > and CP/M cost around £800 in 1983 - £2288 today according to > https://www.inflationtool.com/british-pound That's using CPI, which I always think of as a con by our Government to help hide that successive post-war Governments, of all flavours, have indebted us by over-promising what we can't afford and needing to erode our debt, and our savings, away. :-) RPI, specifically DQAD from ONS's MM23, https://www.ons.gov.uk/economy/inflationandpriceindices/timeseries/dqad/mm23 has these indexes for 1983 and 2019-05, the latest month available. £800 * 286.3 / 86.8 = £2,638.71 LibreOffice here, 6.2.4-1, can't show the whole XLSX file available above: too many columns. -- Cheers, Ralph. -- Next meeting: BEC, Bournemouth, Tuesday, 2019-08-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk/ New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Links from 2019-07-02's Pub Meet.
Hi Tim, > PeterMerchant wrote: > > edlin on DOS boxes. I've never used Edlin, and hardly used DOS/Windows, but https://en.wikipedia.org/wiki/Edlin suggests it's far inferior to its predecessor ed(1). No regular expressions, no symbolic names, ‘marks’, for lines, no ‘global’ command, e.g. ‘g/foo[0-9]/s/bar/xyzzy/’ to run the substitute command, changing the first ‘bar’ to ‘xyzzy’, on every line containing ‘foo’ followed by a digit. > I remember reading the CP/M ed manual in horror in the early 1980's > (on a home-built Nascom II which I still have), wondering why they'd > still provide anything so primitive! But then used edlin for a couple > of years on early PC's developing in assembler and C. I found http://www.cpm.z80.de/randyfiles/DRI/ED.pdf and CP/M ED seems a lot better than Edlin. I see it maintains a cursor position within a line; do you recall how this was shown when a line was typed? Perhaps it wasn't and one had to mentally track it, using ‘0T’ and ‘1T’ to confirm. It's nice multiple commands can be strung together, only executed on Enter. No regular expressions or marks for lines though, and the closest it gets to ed's ‘global’ is ‘nM’ to repeat the rest of the command line ‘n’ times. Amusing how it copes with large files and the small memory buffer by having the user say when lines at the start of the buffer can be flushed out to the new file, and when some more of the source file can be appended to the buffer. -- Cheers, Ralph. -- Next meeting: BEC, Bournemouth, Tuesday, 2019-08-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk/ New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Links from 2019-07-02's Pub Meet.
Incidentally, a pair of floppy disk drives with PSU, interface card and CP/M cost around £800 in 1983 - £2288 today according to https://www.inflationtool.com/british-pound Tim So My BBC Micro model B in 1983 (£399) would cost £ 1144 today. That's a lot of money but I am not sorry that we bought it. Peter -- Next meeting: BEC, Bournemouth, Tuesday, 2019-08-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk/ New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Links from 2019-07-02's Pub Meet.
On 03/07/2019 21:01, PeterMerchant via dorset wrote: I remember ed. I don't think that I have used it for about 30 years and I can't remember what OS that was on. I did use ed, but also edlin on DOS boxes. I remember reading the CP/M ed manual in horror in the early 1980's (on a home-built Nascom II which I still have), wondering why they'd still provide anything so primitive! But then used edlin for a couple of years on early PC's developing in assembler and C. Incidentally, a pair of floppy disk drives with PSU, interface card and CP/M cost around £800 in 1983 - £2288 today according to https://www.inflationtool.com/british-pound Tim -- Next meeting: BEC, Bournemouth, Tuesday, 2019-08-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk/ New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Links from 2019-07-02's Pub Meet.
On 03/07/2019 12:37, Ralph Corderoy wrote: Hi Peter, And a bit of fun using terminal on an android tablet to ssh into a Raspberry Pi and then editing with nano. The damned up/down arrows and CTRL/ALT kept disappearing. This is why it's useful to know a bit of ed(1). It doesn't need much to be working on the keyboard. :-) I use it most days when I want to make a quick edit using the information visible in the terminal that would be replaced if I start a full-screen editor. https://sanctum.geek.nz/arabesque/actually-using-ed/ I remember ed. I don't think that I have used it for about 30 years and I can't remember what OS that was on. I did use ed, but also edlin on DOS boxes. Peter -- Next meeting: BEC, Bournemouth, Tuesday, 2019-08-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk/ New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Links from 2019-07-02's Pub Meet.
On Wed, 03 Jul 2019 10:50:44 +0100, Tim Waugh wrote: > Yes, thinking around the problem of wanting to seamlessly use more > storage than is available locally on e.g. a laptop, backed by > network storage (perhaps a local file server, perhaps as a cache > for cloud storage). Tim's problem reminded me about [IPFS](https://ipfs.io/), a protocol with ambitions of being a distributed replacement for some applications of HTTP. I think it is more of a public-Web thing than a personal-file-storage thing. -- Next meeting: BEC, Bournemouth, Tuesday, 2019-08-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk/ New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Links from 2019-07-02's Pub Meet.
Hi Peter, > And a bit of fun using terminal on an android tablet to ssh into a > Raspberry Pi and then editing with nano. The damned up/down arrows and > CTRL/ALT kept disappearing. This is why it's useful to know a bit of ed(1). It doesn't need much to be working on the keyboard. :-) I use it most days when I want to make a quick edit using the information visible in the terminal that would be replaced if I start a full-screen editor. https://sanctum.geek.nz/arabesque/actually-using-ed/ -- Cheers, Ralph. -- Next meeting: BEC, Bournemouth, Tuesday, 2019-08-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk/ New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Links from 2019-07-02's Pub Meet.
On Wed, 3 Jul 2019 at 09:07, PeterMerchant via dorset < dorset@mailman.lug.org.uk> wrote: > There was some discussion about 'CEPH?' and similar things. > Yes, thinking around the problem of wanting to seamlessly use more storage than is available locally on e.g. a laptop, backed by network storage (perhaps a local file server, perhaps as a cache for cloud storage). https://ceph.com/ceph-storage/ https://www.gluster.org/ https://perkeep.org/ Tim. */ -- Next meeting: BEC, Bournemouth, Tuesday, 2019-08-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk/ New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
Re: [Dorset] Links from 2019-07-02's Pub Meet.
There was some discussion about 'CEPH?' and similar things. We got on to 'R' because we were discussing programming languages. Here's a summary of current popular ones: https://www.techrepublic.com/article/10-programming-languages-developers-used-most-in-the-past-year/ And a bit of fun using terminal on an android tablet to ssh into a Raspberry Pi and then editing with nano. The damned up/down arrows and CTRL/ALT kept disappearing. Peter On 03/07/2019 08:51, Ralph Corderoy wrote: Hi, We sat on the ‘pub garden’ benches all evening and enjoyed the sun for a long time as the playing fields meant no buildings cast an early shadow. The Raspberry Pi 4 got several mentions. https://blog.hackster.io/meet-the-new-raspberry-pi-4-model-b-9b4698c284 is a good review of the improvements. Given they planned four silicon revisions, A0, B0, C0, and C1, and they've released B0 because it ‘turned out to be production-ready’, I'll wait a month of two and see if others find problems. :-) Especially as I'd want the 4 GiB version for a desktop machine. Talking of desktops, here's using two ‘4 K’ TVs, really UHDTV1, as computer monitors, one of which is also the desk surface. https://twitter.com/andrewculver/status/826948468803457024/ The four woods used by a player in bowls are no longer allowed to have an internal weight for bias. Instead, they must have a visible dimple in the surface from a permitted range of sizes. Peter M. and Patrick were asking about R. It's a modern programming language for statistics and data analysis, with many packages available to re-use, and has some nice charting ability. It's mostly a superset of the S language from Bell Labs, them again, in 1976. https://www.r-project.org/about.html An article I recently read happens to use R to map the biased samples of ‘think of a number between 1 and 10’ from a large population to a data set that provides an unbiased answer by solving a linear programming problem using R. Even if you just ‘look at the pictures’, the animation neatly shows how the samples are mapped; search for ‘animate’ and it's just below. https://torvaney.github.io/projects/human-rng Why the two-tone high-low train signal sounds to me like ‘Hitler’. https://www.rssb.co.uk/rgs/standards/GMRT2484%20Iss%202.pdf says the horns' frequencies are 370 Hz ± 20 Hz 311 Hz ± 20 Hz https://en.wikipedia.org/wiki/Piano_key_frequencies#List maps those near enough to F♯4 369.9944 D♯4 311.1270 and they are three semitones apart and a minor third. https://en.wikipedia.org/wiki/Colonel_Bogey_March#History says Supposedly, the tune was inspired by a military man and golfer who whistled a characteristic two-note phrase (a descending minor third interval) instead of shouting "Fore!" -- Next meeting: BEC, Bournemouth, Tuesday, 2019-08-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk/ New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
[Dorset] Links from 2019-07-02's Pub Meet.
Hi, We sat on the ‘pub garden’ benches all evening and enjoyed the sun for a long time as the playing fields meant no buildings cast an early shadow. The Raspberry Pi 4 got several mentions. https://blog.hackster.io/meet-the-new-raspberry-pi-4-model-b-9b4698c284 is a good review of the improvements. Given they planned four silicon revisions, A0, B0, C0, and C1, and they've released B0 because it ‘turned out to be production-ready’, I'll wait a month of two and see if others find problems. :-) Especially as I'd want the 4 GiB version for a desktop machine. Talking of desktops, here's using two ‘4 K’ TVs, really UHDTV1, as computer monitors, one of which is also the desk surface. https://twitter.com/andrewculver/status/826948468803457024/ The four woods used by a player in bowls are no longer allowed to have an internal weight for bias. Instead, they must have a visible dimple in the surface from a permitted range of sizes. Peter M. and Patrick were asking about R. It's a modern programming language for statistics and data analysis, with many packages available to re-use, and has some nice charting ability. It's mostly a superset of the S language from Bell Labs, them again, in 1976. https://www.r-project.org/about.html An article I recently read happens to use R to map the biased samples of ‘think of a number between 1 and 10’ from a large population to a data set that provides an unbiased answer by solving a linear programming problem using R. Even if you just ‘look at the pictures’, the animation neatly shows how the samples are mapped; search for ‘animate’ and it's just below. https://torvaney.github.io/projects/human-rng Why the two-tone high-low train signal sounds to me like ‘Hitler’. https://www.rssb.co.uk/rgs/standards/GMRT2484%20Iss%202.pdf says the horns' frequencies are 370 Hz ± 20 Hz 311 Hz ± 20 Hz https://en.wikipedia.org/wiki/Piano_key_frequencies#List maps those near enough to F♯4 369.9944 D♯4 311.1270 and they are three semitones apart and a minor third. https://en.wikipedia.org/wiki/Colonel_Bogey_March#History says Supposedly, the tune was inspired by a military man and golfer who whistled a characteristic two-note phrase (a descending minor third interval) instead of shouting "Fore!" -- Cheers, Ralph. -- Next meeting: BEC, Bournemouth, Tuesday, 2019-08-06 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk/ New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
