Telautograph
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The telautograph is an ancestor of the modern fax machine. It transmits electrical signals representing the position of a pen or tracer at the sending station to repeating mechanisms attached to a pen
The inventor Elisha Gray
Elisha Gray's Telautograph Transmitter and Receiver in use
Foster Ritchie's Telautograph Receiver and Transmitter c. 1904
Sample work of telautograph
Image scanner
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An image scanner is a device that optically scans images, printed text, handwriting, or an object and converts it to a digital image. The most common type of scanner used in the home and the office is
A flatbed scanner (Epson Perfection V850 Pro) with its lid open. Documents or images are placed face-down on the glass bed (the platen).
The first image ever scanned to a computer, of Russell A. Kirsch's newborn son, Walden (1957)
The Autokon series of scanners were the first flatbed scanners on the market designed for digital image processing; pictured is the 1000/DE, a successor model released in 1988.
A flatbed scanner (HP ScanJet IIC) with its lid closed