Archives for A Dash Of Web and Mobile Development

QR Codes, Microsoft Tags, And 2D Data Representation

QR Code

QR Code

Most people are familiar with barcodes. They’re simple sets of lines that represent numbers. Since they are one-dimensional (i.e., they represent data along one axis only), they’re extremely inefficient. However, that also means they are very reliable. Think of it like the chart at an eye doctor’s office. That top letter might only be one byte in a large space, but it is very easily read by most people.

Now, imaging technology has improved and we can represent data across two axes. This gives us for more data in the same amount of space. Instead of just a few numbers, we can represent hundreds of characters. The two formats I most commonly see are as technically different as they are philosophically different. QR Codes, Microsoft Tags, And 2D Data Representation continued »

First Experience With Windows 7

This past weekend, I tagged along with my brother on a trip to Fry’s (an electronics store) to help him decide on what new monitors to get. I was pretty surprised at how much the normal size and quality has gone up since I last paid attention. In February two years ago, I bought two 1680×1050 19″ monitors for $230 a piece. Now, you can buy a 1920×1080 24″ monitor for that. First Experience With Windows 7 continued »

Apple iPhone 2010 Predictions

Apple is likely to announce an upgrade to their extremely popular iPhone line in June or July this year, and I’ve been considering what changes are most probable. With the release of the iPad, we have a pretty good idea of what will be in the iPhone; they wouldn’t want to undercut their iPad sales. Apple iPhone 2010 Predictions continued »

Nexus One And iPhone Screen Comparison

The first thing I noticed about the Nexus One (and the Droid, for that matter) was the display. After seeing 320×480 being the standard pixel dimensions on a smartphone for so long, devices that have as many pixels on the short side as other devices have on the long side stand out. The Nexus One has a 480×800 display and a resolution of approximately 252 pixels per inch. In contrast, the iPhone has a density of 163 ppi. The purpose of this post is to show a comparison of what that really means visually, as I feel most tech sites have not shown the detail that this deserves. Nexus One And iPhone Screen Comparison continued »

Five Uses For The Apple iPad

Every tech site seems to have a dozen or more articles about the iPad. Nearly every tech blog has spouted an opinion about the device. A lot of people are focusing on the fact that it can’t do most of the things other devices can do. It can’t multitask. It can’t run Flash. It can’t fit in your pocket. Etc. I thought I would help Steve Jobs out and give some people ideas of what the device can do. Five Uses For The Apple iPad continued »