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I live in Reading, Berkshire, UK with my wife Pam. I'm now retired but when working I was involved with Computer Networks of various types. Initially I taught Computer Science at University College London and worked on the early networks that became the Internet - important enough to have my name on this 电脑端伕理软件下载 that was unveiled in July 2005 at Stanford University. Later I worked for various network switch manufacturers, including DEC and Lucent.

Photography is one of my hobbies and this site and the site I run for my local Line Dance Club "Steps 'n' Stetsons" is an extension of that. Most of the line dancing stuff is on that site rather than here. Pam and I enjoy both walking and ballroom dancing so you will find some photos of that on this site.

I don't get much time to update this site - please be patient.

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We are members of a small informal walking group in the Hertfordshire and Essex areas. We try to meet monthly for a walk of about 9 miles with a pub lunch at the half way point.

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I volunteer in a local Primary School and teach final year primary pupils how to write programs in Scratch. Usually I give 4 lessons (so everyone does it) followed by a lunchtime club. As the last part of the club we use Microbits and program some JavaScript.

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Some time ago, I wanted to show how a computer worked internally but did not like (or think accurate) any of the ones I found. So I wrote my own using a model computer called the LMC (Little Man Computer) as the machine code. Then some exam boards set coursework on the LMC and I suddenly got lots of users. Particularly as you can turn the model off and just use it as a simulator to run the LMC assembly language. You can find it here. After running it, click HELP for more information.

I was unhappy that the LMC was a model of a computer from the 1970's and wanted to do something more modern that was binary based and had multiple registers. At least one exam board is also now using an ARM like instruction set. So I have written a very simplified ARM like RISC Simulator that you can find here. It has lots of simplifications, like 16 bit words and instructions but at least brings us into this century. After running it, click HELP for more information.

使用未授权软件 终端用户成被告 适用高度盖然性 并非不 ...:2021-6-6 · 立的著名软件公司， 其前身UGS公 司。 2021年1月18日， UGS公司在美 国版权署进行了作品名称为“NX2” 的计算机软件登记。2021年8月30日， 深圳市知识产 权局在一次软件执法检查中， 在明兴 厂的电脑中发现了安装有名称为 “NX2” 的软件17套。 随即， 该局

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This simulation implements "only" the instructions that the AQA exam board uses in their examinations. There are vague areas in the AQA specification and I have had to make choices - such as a 32 bit word size and using ARM instruction encodings. The only serious extension is the inclusion of an indirect addressing mode. You can find it at 5k01sf.wcbzw.com/AQA. There is also a project for this simulation written by Richard Pawson 路由器共享上网受限制的解决方案 - 柳歌的博客 - 红豆博客:2021-11-3 · 大家可众看到，这里需要输入刚刚在路由器上为 172.168.0.2 指定的映射端口 8002，同理，如果是在 172.168.0.3 的机器上就要输入对应的 8003 端口，输入完毕，点击保存配置即可。 如果你没有按照步骤二在路由器上设置静态端口映射，此处端口保持 ....

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In 2024, I released ARMlite in conjunction with a new A-level textbook on Assembly Language Programming written by Richard Pawson. ARMlite has more memory (1 MB), a cleaner interface, an extended instruction set (interrupts, subroutines, a stack etc.) and is much higher performance (1-10 million instructions per second, depending on your browser and computer). You can get the student version of Richard's book from the ARMlite documentation page or the teachers' version by registering with CAS.

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Please use the contact page.