In 1998, Mattel began selling the electronic Barbi... ...ypewriter in the Barbie line, thus continuing the toy industry habit of introducing young children to t... ...as letter-spacing and underline, this children's toy was capable of encoding and decoding secret messa... ...ret writing would have been the ma...
https://www.neatorama.com/2017/01/09/The-Cryptographic-Capability-of-the-Barbie-Typewriter/
The Cryptographic Capability of the Barbie Typewriter...
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