There are two ways in which we can measure the portability of something; first, the total distance it can go; second, the number of locations it can go.
Portability is a tricky one because it is, in fact, very difficult to quantify. How much does a device really weigh? How are you going to handle it if you bring it into a store and it’s so big and heavy that it’s going to fall over? There is a lot of stuff we don’t know about what we put on our devices. There are countless situations where we should just throw something out.
Portability is a difficult concept to pin down. It is a bit of an intangible concept, because we can’t actually measure how much things weigh, how much time they can be carried, or how many people can carry something. The most you can really say for a given piece of tech is how much it weighs and the number of people who can carry it. A lot of that is subjective.
Portability is also dependent on the device. Apple’s iPod was designed to be a portable device with a screen smaller than it’s predecessor. It is the first portable music player to have a removable battery, and it has enough features like songs that you can play multiple times without having to recharge. It uses a proprietary data format to store songs, and it can hold 2-3 GB worth of songs.
Apple is not the first company to take advantage of portability. Other companies like Microsoft and Sony have incorporated the feature into their devices. But it’s not nearly as portable as the iPod. The iPod was designed to be used as a portable media player, not simply as a portable device.
Since Apple’s iPod is still portable, it’s still portable. At the same time, since you can’t use the iPod as an MP3 player, you can’t easily play your iPod on an iPod dock. And, if you’ve got a portable iPod dock, it doesn’t really have a place in your home.
Well, we all know the iPod isn’t going to be an MP3 player. It’s not, but there are other portable players that do have that capability. The iPod, like a lot of other devices, is portable. The problem is, portability is often defined by size. That means that if you are using an iPod to listen to music, chances are it won’t fit in your pocket.
The problem with portable players, is you are still limited to only what you can easily carry. So you can’t carry an iPod that has a bigger screen and a bigger keyboard. And you cant carry an iPod that has a bigger screen and a bigger keyboard and a bigger trackpad. And you cant carry an iPod that has a bigger screen, a bigger keyboard, and a bigger trackpad.
So the fact that portability can be defined in size (or in the number of bytes you can store) is not the problem. The problem is that portability is relative to our current possessions. For example, if you have an iPod that you can load with the latest songs and play them on your television, then that is portability.
But if you have an iPod with an older and smaller screen, then that is not portability. If you have an iPod with a smaller keyboard and smaller trackpad, then that is not portability.