掌上电脑发展编年史（英文版）

• 1993

  January

  • Apple Computer shows off test versions of its Newton Personal Digital Assistants at the Winter Consumer Electronics Show. [2]

  March

  • Amstrad begins shipping the Amstrad Pen Pad PDA600 Personal Digital Assistant (PDA) in England. It is the first PDA to be shipped. The Pen Pad weighs under a pound, is 1 inch thick, and features a 240x320 resolution 3x4 inch screen. It uses a 20 MHz Zilog Z8S180 microprocessor, and can run for 40 hours on three AA batteries. It includes 128 KB RAM, with a PCMCIA expansion slot for memory expansion to 2 MB. [23.143]

  (month unknown)

  • Casio introduces the Zoomer personal digital assistant, developed jointly with Tandy. It features 7.4 MHz 8086-compatible processor, 4 MB ROM, 1 MB RAM, GeoWorks Geos operating system, PCMCIA flash memory cards. The system operates for about 100 hours on three AA batteries. Price is US$900. [59] [81]

  August

  • Apple Computer launches the Newton MessagePad 100 personal digital assistant at Macworld Expo, in Boston’s Symphony Hall. It features 640 KB RAM, 3 MB of ROM storing applications and the operating system (Newton Intelligence), a low-voltage 20 MHz 32-bit ARM 610 microprocessor, 240x336 resolution (85 dpi) 2.8 x 4-inch LCD screen, one PCMCIA Type II expansion socket, data transfer of 9600bps, and runs on four AAA batteries. 50,000 units sell in the first 10 weeks, but only 80,000 are sold during the product’s life. [2] [3] [9.N7] [16.187] [17.36] [23.148] [26.21] [27.61] [81] (4 MB of ROM [32.104]) (July [24.159])

  September

  • VLSI Technology and Intel announce the Polar processor chip set for handheld computers. The VI86C300 integrated processor controller incorporates a 386 processor core with 2 KB cache, memory controller, LCD controller, andgraphics accelerator. The VI86C100 multiple peripheral controller includes support for peripherals typically used in handheld systems. Speed is 33 MHz. Price is US$50 in quantities of 10,000. [68]

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