【正文】 就有十幾款新機型上市，引人注目的有 sony 的有著藍牙， wifi和鍵盤的 ux 50， handspring 的 tero 600智能手機， palm 公司的 Tungsten T3， Tungsten E 等。 7 年間風(fēng)云變幻，讓我們通過 palm 歷史上經(jīng)典機型的回顧，來看一下 7 年間的發(fā)展變化。無背光 處理器 : MOTOROLA Dragonball 16MHz 操作系統(tǒng) : PalmOS RAM: 128KB 尺寸 : 12 x x (cm) 重量 : 162g 通訊 :串口同步 提起 palm我們不得不提起 palm pilot1000,這個第一部的 palmpilot 電腦使用的是 Hawkins和 Dubinsky 自己開發(fā)的 Palm OS 操作系統(tǒng)，只有 128K 內(nèi)存。160x160 象素 。這是第一款擁有紅外線的 palm 機型，從此之后 palm 開始可以同手機和 palm 之間進行數(shù)據(jù)交換。 輕薄美麗 —— Plam V (1999) 圖為： Plam V 掌上電腦 處理器 : MOTOROLA Dragonball EZ 16 MHz 操作系統(tǒng) : PalmOS 顯示屏幕 :增強的屏幕技術(shù) 。 RAM/ROM: 2MB/2MB Flash 尺寸 : x X 1(cm) 重量 : 113g 外殼 :鋁合金 電池 :內(nèi)置鋰電 通訊 :串口同步 /紅外 PalmV 是 Palm掌上電腦家族中體積最輕巧的一款。 時尚美麗 —— visor deluxe(20xx) 圖為： visor deluxe 掌上電腦 操作系統(tǒng) : PalmOS 顯示屏幕 : 4 級灰度 。令人興奮的是，連同步底座都是透明的霧白色。 多彩天地 —— Palm IIIc 圖為： Palm IIIc 掌上電腦 處理器 : MOTOROLA DragonBall EZ 20MHz 操作系統(tǒng) : Palm OS 顯示屏幕 :彩色 TFT 液晶顯示 。 RAM/ROM: 8MB/2MB FLASH 尺寸 : x x (cm) 重量 : 193g 外殼 :硬塑料 電池 :內(nèi)置鋰電 通訊 :串口同步 /紅外 Palm IIIc 是 Palm公司 20xx 年 2 月 22 日發(fā)布的最新產(chǎn)品，是該公司第一款帶彩顯的掌上電腦。但是記住，它是第一款彩色的 palm掌上電腦。此外它首先創(chuàng)造了雙擴展， cf 和 sD.。12 位色 RAM/ROM: 16MB/4MB FLASH 尺寸 : X X (cm) 重量 : 116g 擴展 : SD/MMC 插槽 電池 :內(nèi)置鋰電 通訊 : USB 同步 /紅外 Tero Handspring 一個新的系列機器，中規(guī)中矩的設(shè)計 。另一個缺點 sd 插槽必須打補丁后才可以支持 SDIO。增強背光 RAM/ROM: 16MB/4MB FLASH 尺寸 : X X (cm) 重量 : 139g 擴展 : SD/MMC 插槽 電池 :內(nèi)置鋰電 通訊 : USB 同步 /紅外 擁有 Palm m515 就等于擁有了一切 幾乎是一切。幾個有特色的機型基本又有著不同方面的缺陷使得我不知道如何對他們歸類。 20xx20xx Ken Polsson 1972 (month unknown) ? HewlettPackard introduces the HP35, the first scientific handheld calculator. [] 1973 (month unknown) ? Texas Instruments enters the pocket calculator field with the introduction of the Texas Instruments SR50 Slide Rule Calculator. It sells for about US$75. [] 1980 July 31 ? Radio Shack introduces the TRS80 Pocket Computer. It features a 24 character display, QWERTY keyboard, and KB of programmable memory. Price is US$230. [] [] [] [] (August []) (month unknown) ? Panasonic and Quasar unveil handheld puters, made by Matsushita. The units use a 1MHz 6502 CPU, and weigh 14 ounces (397 grams). [] 1981 November 10 ? Panasonic introduces The Link handheld puter, the size of a small book, with a keyboard but no display. It can be hooked up to a television or to a host puter via a telephone dialup connection. Price is US$500600. [] 1982 January ? Sharp introduces the Sharp PC1500 Hand Held Personal Computer. It es with 16 KB ROM, and KB RAM. Price for puter is US$300. Price for tiny color graphics printer that attaches to the side, US$250. [] ? Radio Shack introduces the TRS80 Pocket Computer, Model PC2, for US$280. It uses a MHz 8bit microprocessor, and has a 26character display, with upper and lower case characters. It es with 16 KB ROM, and KB RAM, expandable to 16 KB. An optional 4color printer attaches to the side. [] [] August ? HewlettPackard introduces the HP75C portable puter. It features a rechargeable battery pack, 16K RAM, 65 key keyboard, 1 line by 32 character LCD display, magic card reader, 48K ROM including BASIC interpreter, text editor, and scheduler. Size is is x 6 x inches。 price is about US$20xx. [] 1991 (month unknown) ? Apple Computer petitions the FCC to allocate a 40 MHz wide band of frequencies for use with its personal digital assistants. [] September ? Chips amp。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 bat