it历史-palm掌上计算机历史最经典机型回顾英文版(附图)(编辑修改稿)

it历史-palm掌上计算机历史最经典机型回顾英文版(附图)(编辑修改稿)内容摘要：

mputer chairman John Sculley coins the term Personal Digital Assistant, referring to handheld puters that typically operate via a stylus on a LCD display. Sculley announces that Apple will enter the consumerelectronics market by the end of the year. [] [] [] (month unknown)  Apple Computer and Sharp announce an agreement to codevelop a personal digital assistant, based on Apple’s software and Sharp’s hardware. []  At the Spring Consumer Electronics Show, Apple Computer announces the Newton pen input device. Features include: multitasking NewtOS operating system, ARM 610 processor, one PCMCIA card slot, 7 1/2 x 3 1/2 inch size, 3 x 6 inch screen, and weight of under one pound. [] [] October 14  At the Microprocessor Forum, ATamp。 T Microelectronics unveils its Hobbit processor, implementing the CRISP architecture. Formal name of the processor is ATT920xx. Processor speed is 2030 MHz, depending on voltage. Price is US$35 in quantities of 10,000. []  At the Microprocessor Forum, Advanced RISC Machines introduces the ARM250 chip, bining the core ARM processor with memory controller, video controller, and I/O interface. CPU speed is 12 to 16 MHz. The chip uses under 100,000 transistors, built in a 1micron CMOS process. Price is US$25 in 100,000 unit quantities. [] (month unknown)  Eo announces the Personal Communicator 440 handheld penbased microputer. It features 20 MHz Hobbit processor, 4 MB RAM, PenPoint operating system in ROM, 480x640 screen, optional internal 20 MB hard drive, optional external floppy disk, keyboard port, one PCMCIA Type II slot, and various builtin software programs. Weight is pounds. Size is about 11 x 8 x 1 inches. Battery life is about 4 hours. Pricing will start at about US$20xx. []  Eo announces the Personal Communicator 880 handheld penbased microputer. It features 30 MHz Hobbit processor, 4 MB RAM, PenPoint operating system in ROM, 480x640 backlit screen, optional internal 64 MB hard drive, VGA output port, SCSI II interface, optional external floppy disk, keyboard port, 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。 T Microelectronics announces the Hobbit 92020S processor, patible with the 920xx processor. The 92020S doubles the instruction cache to 6 KB, and operates at 20 MHz. Price is US$37 in 10,000 unit quantities. [69]  At the Microprocessor Forum, Advanced Micro Devices announces the Am386SC processor for handheld puters. Operating speed is up to 33 MHz, operating at Volts. Price is US$49 in 10,000 unit quantities. [69] December 31  Shipments of handheld PCs for the year: 244,000. [] 1994 (month unknown)  Shipments of Apple Computer Newton MessagePad 100 systems in the first five months: 80,000. [14] March  Apple Computer introduces the Newton MessagePad 110 handheld puter. It features 1 MB RAM, 20 MHz ARM610 processor, and runs on four AA batteries. Remote data transfer rate is Kbps. Battery life is five times that of the Model 100. Price is US$599. [2] [] [] [14]  Apple Computer introduces an improved Newton MessagePad 100. It is physically identical to the previously released model, but contains improved software. Price is US$499. [2] [] [] [14] (month unknown)  ATamp。 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] []。