This web site collects together a few ideas, demos, and hobby experiments. It has provided hands on learning about websites and website technology I am interested in sailing, and electronics and dabbling in coding. The Science of Cambridge MK14 was my first computer and I am still playing with it 40 years later! My interest in PIC micro controllers started after using one to turn on a cassette recorder to record the Radio 4 Shipping forecast while on a yacht away from the marina. Nowadays, boards like the Arduino, Raspberry Pi and modules sourced from eBay allow plenty of tinkering using LINUX, the IDE, Tiny C and SDCC compiler. Emulating old computers has provides interesting challenges. Most computers are micro-controllers or virtual now with the Cloud. Thankyou for all the useful blogs and webpages information. I have an interest in using JavaScript and SVG in Web Pages to try out coding ideas and dabbles.

Wiki - Arduino, R Pi, old computers: MK14, NASCOM 2, Microchip PIC , JavaScript, more... My github - MK14, NASCOM emulators in DOS, Java, C using SDL Science of Cambridge MK14 emulator MicroChip Web Pages Interative Telecom models ADSL and the bell wire dougrice.co.uk Guest book - used to log web pages of interest! Dashboard - updatable Notice Board using Markdown.

Simple JavaScript applications using data stored in a guest book

The UK Online Safety Act needs to be considered. The Online Safety Act explainer.

This idea could allow any content to be posted un-moderated. The server side scripts need validation of who is posting. A separate script to unlock and lock the posts is used to restrict ad-hoc posts. Some validation of the form data is needed. Ad-hoc posts would need to be moderated before publication.

Here is a way of writing simple web applications by using a 'guestbook' server side script and client side JavaScript. There are loads of simple applications that just need a simple sorted list of user's amendments.

Some of these pages result from work on automating our sailing club web site.

Our sailing club needed some simple but useful applications without too much effort.

Server Side applications need knowledge of PHP, and database skills like MySQL, MariaDB, SQL and PHP API to connect to the database, and database security. Adding Ruby On Rails and it is hard to find a club member with the skills and time.

More My ideas about using a Guestbook as a JavaScript Database

Demo Apps, some were used :- boat booking system - demo data - Liferaft Booking System - used for one year. boat booking system - demo data - Uses cookies - Liferaft Booking System - used for one year. sailing session booking system - with - Booking System - pricing. Markdown and Guestbook idea - Includes a Markdown using JavaScript on the page. These were used:- Updateable Notice Board - shows future and last weeks notices. Updateable Notice Board - with update form Guest book closed due to spam but used to log interesting pages. Multi table note blogger Used for notes and still can read archived data. Experimental Demos:- Updateable Club Race Results - results using csv to tables. Gant Chart demo - try to show gant chart. CSV data to tables Demos:- CSVtoTable - try to display tables. CSVtoTable - with update links - try to display editable tables. Dump data as CSV dump CSV tables Favorites and code scrap blogger:- Guestbook logging Favorites - records links of interest Code Scrapbook - record bits of code Webpage includes links found:- ADSL links / Favorites Garden solar Light:- Garden Solar Light including blog / Logger. Garden Solar Light Logger - Daily Counts. Plot Solar cell measurements using SVG graphics