【正文】 two PCMCIA Type II slots, and various builtin software programs. Weight is 4 pounds. Size is about 13 x 9 x 1 inches. battery life is about 4 hours. Pricing will start at about US$3000. [] 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. [] (month unknown) ? Casio introduces the Zoomer personal digital assistant, developed jointly with Tandy. It features MHz 8086patible 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 lowvoltage 20 MHz 32bit ARM 610 microprocessor, 240x336 resolution (85 dpi) x 4inch 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] [] [] [] [] [] [] [81] (4 MB of ROM []) (July []) September ? VLSI Technology and Intel announce the Polar processor chip set for handheld puters. 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] October ? At the Microprocessor Forum, Advanced RISC Machines unveils the ARM7 processor family. Features are micron technology, 35 volt operation, 2033 MHz. [80] ? At the Microprocessor Forum, ATamp。 weight is 7 ounces. It operates for about 14 hours on two AAA batteries. [] [] [] ? Apple Computer introduces the Newton MessagePad 20xx. It features a 162 MHz processor. [] October ? Microsoft ships Windows CE operating system. It includes support for color and 16grayscale displays, TrueType fonts, and Ether connectivity. Code name during development was Jupiter. [] [] (month unknown) ? Franklin Electronic Publishers introduces the Franklin Rex3DS PC Companion PDA. It features Type II PC Card, two lithium batteries for about six months use, storage for 3000 contacts/tasks/appointments, 9 lines by 32 characters x inch monochrome LCD display, five buttons. Price is about US$180. [] ? Franklin Electronic Publishers introduces the Franklin Rex1 PC Companion PDA. It features Type II PC Card, two lithium batteries for about six months use, storage for 750 contacts/tasks/appointments, 9 lines by 32 characters x inch monochrome LCD display, five buttons. Price is about US$130. [] ? HewlettPackard introduces the HP 620LX Palmtop PC. It features 16MB RAM, 256color 640x240 pixel diagonal display, Windows CE , and lithium ion battery pack giving about hours use. Price is about US$900。 size is x x 1 inches。 weight is ounces。 weight is 6 ounces。 weight is ounces. [] December 31 ? Shipments of handheld puters in the US for the year: million. [] [] [] ? Worldwide shipments of handheld puters for the year: million. [。 weight is ounces。 weight is ounces。 8MB RAM, fax/modem, two AA batteries lasting about 30 hours, and keyboard. Weight is 24 ounces。 weight is 14 ounces。T closes subsidiary Eo, ending life for the Hobbit processor, and the PenPoint operating system. [48] September ? Palm Computing releases the Graffiti handwriting recognition software. Price is US$79. [] December 31 ? Shipments of handheld PCs for the year: 390,000. [] 1995 January ? Apple Computer announces the Newton MessagePad 120. [2] [] September ? Intel announces the 80486SXSF and GXSF 486 microprocessors, designed for handheld puter products. The GX has a 16bit bus, the SX a 32bit bus. Both are 33 MHz, operating on volts. [] [82] December ? Apple Computer ships the Newton operating system. [] December 31 ? Shipments of smart handheld devices in the US for the year: million. World shipments: million. [] ( million in US []) 1996 January ? 3Com debuts the Palm Pilot. [] [] (month unknown) ? Sharp Electronics introduces the Zaurus ZR5800FX handheld puter. It features keyboard and fax modem. Price is US$729. [] June ? Apple Computer introduces the Apple Newton MessagePad 130, with transreflective LCD with an electroluminescent backlight, battery life about 8 hours (4 with backlight on), MB heap space, 20 MHz ARM 610 RISC processor, 320x240 pixel display, one Type II PC Card slot, MB internal RAM, for US$799. [] [] (month unknown) ? NEC Electronics begins shipping its R4101 processor for personal digital assistants. The chip includes a 33 MHz 4100 processor core, 2 KB instruction cache, 1 KB data cache, realtime clock, DMA controller, audio driver, and interfaces for serial port, keyboard, infrared, and touchscreen interfaces. [] September 16 ? Microsoft unveils Windows CE operating system for handheld PCs. Codename of the project was Pegasus. CE stands for Consumer Electronics. [] [] [] (month unknown) ? LG Electronics introduces the LG HPC GP40M handheld puter. It features a Hitachi SH3 processor, 480x240 LCD