The device looks a lot like a soccer ball sitting on the rim of a can.

The device may look odd, but it's really just an electrical switch.

This device doesn't look impressive, but it is something new.

Determining what the devices should be looking for, however, is a work in progress.

The devices look for hot spots where a body could be.

Other electronic devices may not look like a computer, but they still have a program inside telling them what to do.

The first devices had 14 pins and looked much like they do today.

But while the devices designed to function on such networks often looked interesting, many were expensive and did not work well.

But primitive as the device looked, it certainly moved quickly enough.

Without a physical keyboard this device looked very different from later versions.