Information and Communications Technology
The group discusses all aspects of Personal Computing as well as Information and Communication Technology, and organises presentations of interest to members.
Meetings are held at Newdigate Village Hall (Click for Scalable Map), Kingsland, Newdigate, RH5 5DA (OS Ref TQ195422) and are normally on the THIRD Wednesday of the month. The meetings generally start at 10.30 following coffee and biscuits. For actual dates see list below. Visitors are welcome to our meetings. After the meetings there is an opportunity to have lunch at the local hostelry - The Six Bells. A menu for pre-ordering lunch is circulated during the meeting.
Some pictures of a meeting can be found on the Gallery page.
Membership is currently £5 a year. Click here for Application form (PDF) download.
Click here for Newsletters from
current and past years.
The newsletters contain reports of the last month's meeting, topics discussed, interesting information and Leslie's Puzzle page.
Note that members are welcome at the RMS meetings in East Horsley - click here for the programme.
|March 21st||National Computing Museum
Jill has worked as a freelance developer and trainer in the computer industry since 1995. Prior to that she worked in the computer industry since 1979 in various roles starting with junior programmer via Analyst, team leader and Project manager.
Jill has learnt (and mostly forgotten) about twenty different programming languages from pascal through vision format code and java. Her current developer work is mostly web facing with the occasional retro step to VBA when pushed!
Jill's previous role at the computer museum was the joint project management of the software gallery. Currently she coordinates the work being done in the library in order to create an excellent research facility.
|April 18th||AGM & Renewal energy||Donald Swift-Hook|
|May 16th||Ladies Lunch|
|July 18th||3D printing at home||Peter Simpson|
|August 15th||Open Forum||The Members|
Note that Newsletters contain detailed reports of past meetings.
|February 21st||Bayesian Inference
Reverend Thomas Bayes (1701-1761) was an English vicar with an interest in statistical analysis. His work on inverse probability, moving from effect to cause, was only published after his death. Bayes' theorem plays a huge role in all our lives - even though most people are completely unaware of it. For example it is used for -
In the talk some of the history of the theorem and several examples of its use was presented."
|January 17th||Open Forum Computer security and Public Key Cryptography||Guy Meakin|
|December 20th||Smart Phones and Tablets Members' experiences||The Members|
|November 15th||Epson Printers The latest technology for home printing combined with digital imaging; printing problems and solutions coupled with information on the latest Epson products. Why inkjet is superceding Laser.||Stefan Monkhouse of Tecres of Leatherhead|
|October 18th||How far to the Moon?
On several of the Moon missions, arrays of retroreflectors were carefully positioned and left on the Moon’s surface with the expectation that it would be possible to conduct Earth-based experiments using them. The talk described the technically very challenging measurements which have been made and data accumulated over the years.
|September 20th||Minix Another version of Linux, its history and evolution.||John Hale|
|August 16th||Open Forum Email programs and Browsers members' experience and problems; Also bulk email methods e.g. Mailchimp.||The Members|
|July 19th||The history of computers How did we get where we are?||Tony Barnes|
|June 21st||Windows 10 privacy and Tracking and the WannaCry hacking attack||Guy Meakin|
|May 17th||Ladies Lunch following Painshill the history of a landscape.||Graham Dash|
|April 19th||AGM followed by Digital photograph formats and processing.||Peter Dulley|
|March 15th||Newtonian Gravity: a history and simulation
|February 15th||Linux An alternative operating system||Chris Rosenberg|
|January 18th||The Raspberry PI Experiences of use [by grandchildren]||The Members|
|December 14th||Open Forum with discussion on the computer magazines that members read. Mince pies etc. provided as required by the season.||The Members|
|November 16th||Magnaflux Universe Clive told us about his controversial theory that the Sun is electrically positive and the planets are electrically negative. The sun emits positive ions and the planets receive them, balancing the universe.||Clive Stevens|
|October 19th||The Arduino micro-controller, its programming and applications.||John Holcroft|
|September 21st||Navigating light aircraft Part 2
The Navaids - navigating by using radio beacons of different generations, and the instruments to help.
An extension of the talk by John Chambers in February. During Chris's time at the NPL the values of the Metre and the Speed of Light were reviewed and changed. Chris told us about the core values which are the basis of measurements today.
|July 20th||The £100 computer
The starting point was an article in Personal Computer World in 2008 on building a PC for £99. In view of the current low cost of some processors and motherboards, can this be equalled in 2016? Apparently not, but maybe for below £120.
|June 15th||Open Forum - Mostly Windows 10
(Talk on Linux postponed)
|May 18th||Ladies Lunch following presentation 'Appearing on Countdown'.||Priscilla Munday|
|April 20th||AGM followed by a presentation on Navigating light aircraft Part 1.. This part concentrated on calculating and submitting a flight plan.||David Bradshaw|
|March 16th||Radar Recording using early Video Tape recorders followed by Video Cassette recorders.||Seb Welford|
|February 17th||TIME John is a self-confessed 'time freak'' and after 26 years at BBC Engineering Research to 'get behind the pips' he was Head of the Time Service at the NPL from 1993-1999. As well as the day-to-day task of keeping time, he delved into some aspects of the calendar. So it's leap seconds and leap days in a leap year, with a touch of relativity.||John Chambers|
|January 20th||Windows 10 Experience after using it for several months.||The members|
|December 16th||'How the DVB-T broadcast radio-wave signal is derived from a bitstream'.||Chris Rosenberg|
|November 18th||Digital cameras Comparison of different forms of digital cameras including Smart phones and Digital SLR cameras.||Ron Everitt & the members|
|October 21st||Global Supply Chains
These rely heavily on computers and big data; an important topic that is rarely addressed.
|September 16th||A Programming Language
developed in the 1960s by IBM's Kenneth Iverson.
An account of the famous (infamous) language "A.P.L." This has been made possible because John has obtained a free A.P.L. interpreter that runs under WINDOWS 32 bit and 64 bit operating systems at least up to WINDOWS 7. He demonstrated a few of its many very powerful functions, all accessible from a toolbar. The interpreter is obtainable from Nars2000 APL.
|July 15th||Helping the Handicapped
access services for TV (subtitles and audio description) and the need for them. The talk included a couple of video clips with sound. David stepped in at the last minute!
|June 17th||The ISS
Ray talked about his interest in the International Space Station and presented a number of videos of the launch of the Soyuz rocket and life on the space station. The videos (which are available on Youtube) are accessible via his Web site.
|May 20th||Ladies lunch in Six Bells following Family internet searching - Using Ancestry.co.uk to further your research||Guy Meakin & Andrew Farrier|
|April 15th||Annual General Meeting 2015 + Smart Meters.
Click here for the minutes of the 2014 AGM and
here for the Agenda for the 2015 AGM.
|March 18th||"My contribution to The BBC Microcomputer Project and other stories" - mainly "other stories" - a light-hearted look at my career with the BBC.||Charles Hope|
|February 18th||Early radars
Chain Home - Chain Home and the technology involved. See full report in the March newsletter.
|January 21st||A simple Access database
handling names, addresses, phone numbers (Land line and
Mobile), Christmas cards, address labels, lists, and much
else besides. The talk illustrated it, but demonstrated how
easy it is to set up, its robustness and flexibility.
Also a brief demonstration of the password manager for coping with the large number of passwords and pin numbers that we seem to accumulate over the years that need keeping in a secure environment. This would be a follow on from the talk John gave a while ago (November 21st 2012, newsletter December 2012) on passwords and security. The particular P/W manager, STEGANOS, is but one of many but it is easy to use and most importantly, very robust.
|November 19th||Digital TV and Radio recent developments||David Godddard & David Bradshaw|
|October 15th||Radar principles and examples||Seb Welford|
|September 17th||The Legacy of Seymour Cray
or …….towards a history of Supercomputing [1970s, 1980s & 1990s]. Seymour Cray is the father of Supercomputing. When CDC ran into financial difficulties in the late 1960s, development funds for his CDC 8600 became scarce. When Seymour Cray was told the project would have to be put "on hold" in 1972, he left to form his own company, Cray Research Inc. This resulted in the Cray-1, a most successful supercomputer and “The world's most expensive love-seat”. And a whole lot more……
|August 20th||Genealogy - Internet aided searching continued||Paul Sedgwick|
|July 16th||Genealogy - Internet aided searching||Paul Sedgwick|
|June 18th||How we view electricity We were all taught that an electric current is made up of a flow of electrons but as AC electricity can move at the speed of light this is not physically possible.||Clive Stevens|
|May 21st||Ladies Lunch
after talk on Growing up with a famous Uncle
Reminiscences on early life with Benjamin Britten, with pictures and music.
|April 16th||AGM and open forum with observations on Windows 8 and the UEFI; also a look at ISO/EEC80000/13||Seb Welford and Chris Rosenberg|
|March 19th||Open Forum||The Members|
|February 19th||The Raspberry PI experiences continued. Also a look at the BIOS replacement - UEFI.||Tony Barnes & Chris Rosenberg|
|January 15th||The demise of Windows XP support and its implications||Seb Welford and others|
|December 18th||Open Forum with Mince Pies with topic The Raspberry Pi - initial experience||Chris Rosenberg|
|November 20th||Restoring a computer system following hardware failure followed by an open forum||Guy Meakin|
|October 16th||Commercial Computing: LEO - How Lyons produced one of the first large commercial computers.||Geoff Cooper|
|September 18th||The History of the Global Positioning System - its principles of operation, with the problems of obtaining support and funding, with its subsequent history, and that of rival systems. It is not in itself a navigation system – it only tells you where you are, your velocity and the time of day.||Alan Thomas|
|August 21st||Open Forum||The Members|
|July 17th||The (failed) NHS IT system - NPfIT - In 2001 the Department of Health embarked on a major IT investment for the NHS in England. This was the NHS National Programme for Information Technology or NPfIT. The motivation was based upon the twin beliefs that (1) the NHS was an organisation that had not made the best use of Information Technology and that savings would be possible; and that (2) centrally held electronic patient records would be a smart way of improving patient safety and improve the efficiency of communications. 10 years on and the Health Minister (the ever popular Andrew Lansley), scrapped NPfIT in 2012. How did this happen? What lessons can be learned from this major programme failure?||Geoff Balls|
|June 19th||Presentation on email - its evolution to today's protocols||Tony Barnes|
|May 15th||Ladies Lunch with Guide Dogs presentation in the Village Hall before lunch in the 6 Bells. We also showed a clip of a dog-cam to show the capabilities of a dog.||Liz Meakin|
|April 17th||AGM + Open Forum with overview of the Windows Registry.||The Committee + Chris Rosenberg|
|March 20th||Networks Chaired discussion||Seb Welford|
|February 20th||Making MS Access 2010 and Excel work together A Case Study||Jan Spencer|
|January 16th||Search Engines How Google works - the maths behind the performance.||Chris Rosenberg|
|December 19th||EGM and Open Forum with Mince Pies The new constitution was available to members and was confirmed.||The Members|
|November 21st||Passwords and Security||John Steel|
|October 17th||Computer Security - chaired discussion Part 2 - External (beyond the firewall)||Guy Meakin|
|September 19th||Computer Security - chaired discussion Part 1 - Internal (inside the firewall)||Guy Meakin|
|August 15th||Open Forum with suggested topic ‘The Cloud’||The Members|
|July 18th||Domestic (heating) Control Systems, A "Madam" with unpredictable tendencies - 7th July 1951 - Alan Turing||Ron Everitt|
|June 20||TV interfaces Where they came from, and HDMI details||David Bradshaw|
|May 16th||Ladies Lunch with Pictures of Scotland||The Committee and Peter Dulley|
|April 18th||AGM and open forum||The Committee|
|March 21st||The CPU The beating heart of the computer||Seb Welford|
|February 15th||Making Presentations and using PowerPoint||Brian Arthur|
|January 18th||Web Site Creation||Jan Spencer|
|November 16||Spreadsheets (continued)
Chris showed us more things that can be done with spreadsheets, especially using Office 2010.
|October 19th||Network Encryption||Guy Meakin|
|September 21st||Photon to JPEG
The talk followed the path of the subject information arriving as visible light at a camera lens to its ultimate destination stored as a compressed image file. The stages of processing was described in terms of the various technologies employed and the underlying physics and mathematics.
Seb discussed the basics of spreadsheets and what they can be used for. He used examples and showed how to avoid basic errors.
David then demonstrated a spreadsheet that displayed the polar diagram of a radio transmitter using information downloaded from the Ofcom web site.
|Seb Welford and others|
|June 15th||Gimp (Graphics in Linux)
This is a pixel based image manipulation programme similar to Adobe Photoshop and Corel Photo-Paint.
Don described his limited experience of using Gimp during the past year and showed what he has managed to do achieve in the form of before and after results from several photographs. Don followed this by demonstrating how the various results were obtained.
|May 18th||Ladies Lunch with talk on New Zealand
The meeting was in the Six Bells pub.
|April 20th||AGM & Open Forum||The Committee|
|March 16th||Tables in Word, Excel & Access||Leslie Haddow|
|February 16th||Computer Communication by Numbers
An exploratory and explanatory walk through the world of DHCP, MAC addresses, Ethernet frames, ports and all those other things you keep hearing about but haven't a clue what they mean.
|January 19th||Digital Terrestrial Television
This presentation looked at the technology and network behind digital terrestrial television. This included an overview of the MPEG compression and COFDM modulation techniques as well as a description of the network itself. It concluded by giving a glimpse of some of the significant challenges involved in digital switchover, which started in Cumbria in October 2007 and is due to complete in 2012.
Keith joined the transmission division of the BBC as a Technical Operator in 1973. Following a five year spell in Operations and Maintenance he transferred to the projects division, where he has effectively remained ever since, progressing to his current role of Principal Technologist. Arqiva is the ultimate result of past privatisations of the transmission divisions of the BBC and IBA. Keith has worked in many fields, specialising particularly in digital technology. Having played a significant role in the development of the UK DAB transmitter network he went on to act as the Technical Manager for his company’s roll-out of the UK DTT network in 1998. He subsequently acted as the Technical Manager for the re-launch of the UK digital TV network as Freeview. Keith represents Arqiva on many industry bodies, in particular the UK DTG and DVB.
|Keith Hayler, CEng MIET, Principal Technologist, Arqiva Warwick, UK|