A tsunami is not just seawater. It picks up a huge amount of debris which gives it added destructive power. People don't die just from drowning, many are killed by being hit by debris and heavy objects in the surging torrent. A retreating tsunami wave can cause as much damage as the initial forward surge.
In computing, a printer is a peripheral device which makes a persistent human-readable representation of graphics or text on paper. The first computer printer design was a mechanically driven apparatus by Charles Babbage for his difference engine in the 19th century; his mechanical printer design was not built until 2000. The first electronic printer was the EP-101, invented by Japanese company Epson and released in 1968. The first commercial printers generally used mechanisms from electric type
Part of the Multimedia and graphics glossary: A plotter is a printer that interprets commands from a computer to make line drawings on paper with one or more automated pens. Unlike a regular printer, the plotter can draw continuous point-to-point lines directly from vector graphics files or commands.