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ACSLogo for OSX Version 1.5.1

ACSLogo is a Logo Interpreter for Mac OS X.

Logo is a popular language used to teach simple programming by guiding the progress of a ‘turtle’ which moves around a graphics screen.

Despite Logo’s simplicity, complex pictures can be constructed, as the screenshot shows.

A new version is available — 1.5.1 (May 2011). It includes changes to the graphics system to improve drawing speed and quality. You can find out more about the program and download it for free from here.

See more examples in bitmap or svg format.

Globe for iPad 1.1

Globe for iPad is an app which shows a 3D globe of the countries of the world which you can rotate and zoom with your fingers. You can search for a country by name or tap on it to bring up country info from Wikipedia.

Version 1.1 has some map corrections and uses less CPU (September 2010).

Find out more about version 1.1 or see it on the iTunes store.

GeogXPert for OSX 1.1

GeogXPert for OSX is a free program which allows you to test your knowledge of countries and capital cities by clicking on them in a map. It runs in Mac OS X Leopard or above. This version has some small enhancements and bug fixes.

More info. (August 2010).

GeogXPert for iPad

GeogXPert for iPad is an app which lets you test your knowledge of countries and capitals by clicking on them in a map.

Find out more about version 1.0 or see it on the iTunes store (June 2010).

WorldBounce for iPhone

WorldBounce demonstrates the iPhone’s accelerometer - tilting the iPhone causes a globe to roll and bounce off the ‘walls’.

Read about version 1.0 (April 2010).

TuneNap for iPhone

TuneNap is a music player and sleep timer for iPhone and iPod touch.

Read about version 1.0 (April 2010).

Canvas not supported

The <canvas> tag is a new standard for embedding vector graphics in html (it will be part of the HTML5 standard). Latest versions of Safari, Opera, and Firefox support it to various degrees. If your browser supports it, you will see an image on the left. I’ve been trying it out.

DB2 is IBM's mainframe Database server. The DB2 page has some query and programming examples. There are also some links to books and sites on the links page.

Punk Pics - Some pictures I took of various groups in the late 70s.

ACSFilters are filters for Adobe Photoshop. I developed these to work with Photoshop 2.5.1 so they're showing their age a bit now. They still seem to work with later versions of Photoshop in Classic, though. I hope to develop these for OS X soon. Download or see more examples.