Kobayashi: Today optical signals position the modern mouse, not a mechanical ball!

And the modern mouse communicate with the PC by wireless...

Kobayashi: I hold many spare modern mouses somewhere in my room.

Find a mouse and you'll get it!

Hayashi :Why the wireless mouse have such cord?

Kobayashi :Because uncorded mouse will disappear from me soon...

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No.495 12/02/19 古マウス