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Why Use Low Tech?
Low Tech as a Backup

Using a laser pointer for communication as a back up when low tech is down.

Ana only uses a laser pointer the rare times when her communication device is in the shop.

A communication device (speech generating device) is basically a special computer. Any computer can develop technical problems and stop working.

A paper communication board:

There may be times when a communication device develops a problem and needs to be sent in for repairs. When that happens, it's important to have a low tech system as a backup.