Logitech Trackman Portable Mouse Trackball

By Xah Lee. Date: . Last updated: .

This laptop clip-on trackball came out around year 1991.

logitech trackman portable mouse
Logitech Trackman Portable Trackball 〔image source reddit

The bar is the left button, the dot right.

You clip this onto the side of your portable laptop.

Laptop exists in 1991. It isn't like today's. It was thick and heavy, with a tiny screen, about 640x480.

logitech trackman portable mouse trackball 24354
Logitech Trackman Portable Mouse Trackball
logitech trackman portable mouse 74537
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