Mike Chambers

For today’s myth, I want to cover one that has its roots in some fundamental misunderstandings around video technologies. That is the idea that H.264 Video (deployed via the HTML5 video tag) will kill Flash. This is a more recent meme, which has spread with the growing awareness of the forthcoming HTML5, but is unfortunately based on some fundamental misunderstandings about Flash, video capabilities, and the web in general.
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Today I wanted to look at a more recent misperception around Flash. That is the idea that Flash cannot work on devices with touch screens. If you know your Flash history then you will probably find this a bit ironic, considering that Flash was originally created specifically for tablets with touch inputs. Regardless, lets take a closer look at this myth.
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This is one of the most prevalent misperceptions associated with Flash. Basically, the myth is that Flash uses an inordinate amount of CPU compared to other, similar technologies.

Before looking in more detail at this misperception, I think it is important to point out that when one makes the statement “Flash is a CPU hog”, they are making a comparison of Flash CPU usage to some baseline. This then begs the question: Flash uses a lot of CPU compared to what? By comparing Flash CPU usage to other similar technologies and content, it becomes clear that Flash CPU usage is not excessive for the type of content that it displays and executes.
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