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The first desktop and mass-market computer. In 1964, the first desktop computer, the Programma 101, was unveiled to the public at the New York World's Fair. It was invented by Pier Giorgio Perotto and manufactured by Olivetti. About 44,000 Programma 101 computers were sold, each with a price tag of $3,200.
The image to the right shows an ASUS LCD monitor. When was the first computer monitor invented? The first computer monitor was part of the Xerox Alto computer system, which was released on March 1, 1973. Why is a monitor an output device? A monitor is only used to display information from a computer and provides no source of input. For this reason, a computer monitor is considered an output device. Note: Newer PCs, smartphones, and tablets have touchscreens, which allow the user