Tuesday, July 10, 2012

Tablet Screen Size is a Bit Like Mobile Cell Size: Highly Non-Linear


6j2n.png


Tablet screen size is a bit of a non-linear matter, though it often seems as though it is quite linear. More accurately, screen size and mobile cell coverage area are "linear," but not on a 1:1 basis. 


The typical rule of thumb for decreasing a mobile cell site's coverage is that reducing radius of coverage by 50 percent requires a quadrupling of the number of sites. 


In somewhat similar fashion, an iPad "mini" of about eight inches screen diagonal would have roughly 40 percent more surface area than a seven-inch Kindle Fire or Android Tablet. Apple  might have business reasons for producing a smaller-screen device in precisely the dimensions it seems to be choosing. 

2 comments:

txpatriot said...

Gary I don't understand your math.

Regardless of the aspect ratio, an eight inch screen diagonal means 64 square inches of viewing area. A seven inch screen diagonal gives 49 square inches of viewing area. 64 sq. in. is only 30% greater than 49 sq. in.

How did you get 40% greater?

txpatriot said...

You can disregard my last comment.

I was squaring the diagonal to get the surface area which of course is not correct. I need to use the aspect ratio to determine H and W and only then can I calculate surface area.

But I'll take your word for it!

Which Firm Will Use AI to Boost Revenue by an Order of Magnitude?

Ultimately, there is really only one way for huge AI infrastructure investments up by an order of magnitude over cloud computing investment ...