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The HP-150, a "compact, powerful and innovate" computer made by Hewlett-Packard in 1983 and based on Intel 8088, was one of the world's earliest commercialized touch screen computers. Running MS-DOS, the machine was nevertheless non- IBM PC compatible. Its 8088, rated at 8 MHz, was much faster than the 4.77 MHz ones used by many other computers of that period. However, its mainboard did not have a slot for the optional Intel 8087 math coprocessor due to space constraints.

The screen is actually not a touch screen in the strict sense, but a 9" Sony CRT surrounded by infrared transmitters and receivers which detect the position of any non-transparent object on the screen. The HP-150's use of 3½-inch "microfloppies"A floppy disk is a data storage device that comprises a circular piece of thin, flexible (hence "floppy") magnetic storage medium encased in a square or rectangular plastic wallet. Floppy disks are read and written by a floppy disk drive or FDD not to be predates the Macintosh 128KThe Macintosh 128K Personal Computer was the original Apple Macintosh. It had a beige case that was intended to be fully self-contained. An indentation in the top rear of the case allowed the computer to be lifted and carried. This Macintosh model was not. Its use of two internal 3½-inch drives was also more practical than Apple's merely one.

• Removable storage:
  • 8-inch floppy drive
  • 5 1/4-inch floppy drive
  • 3½-inch floppy drive
• Mass storage:
  • Winchester hard diskA hard disk (or hard disc or hard drive ) is a computer storage device. Mechanics A hard disk uses rigid rotating platters. It stores and retrieves digital data from a planar magnetic surface. Information is written to the disk by transmitting an electrom
• Display resolutions:
  • Text: 80 columns x 27 lines (720 pixel x 378 pixel)
    • Character size: 7 pixel x 10 pixel
    • Character cell size: 9 pixel x 14 pixel
  • Bit-map: 512 pixel x 390 pixel
• Monitor sensor grid: 40 (h) x 24 (v)
• Communication ports:
  • RS-232RS-232 (also referred to as EIA RS-232C or V. 24 is a standard for serial binary data interchange between a DTE ( Data terminal equipment) and a DCE ( Data communication equipment). It is commonly used in personal computer serial ports. History This stand x 2 (one of them supported RS-422)
  • HPIP

HP-150's touch screen sensor grid is quite coarse. Its resolution is only two characters wide. It cannot be used to draw pictures.

See also: List of Hewlett-Packard productsThe following is a partial list of products manufactured under the Hewlett-Packard brand. Printers LaserJet printers ( monochrome) HP LaserJet 1012 HP LaserJet 1300 series HP LaserJet 2300 series HP LaserJet 3300 series HP LaserJet 4100 series HP LaserJet