管理信息系統(tǒng)計算機硬件軟件-預覽頁
【正文】 ADD Z Following Numbers STR X Y, Z 軟件發(fā)展趨勢 SOFT WARE TREND 1. Use of offshelf software package acquired by users from software venders. 用商用軟件包 . 2. Toward nonprocedural natural languages that are closer to human conversation. 非過程自然語言 . Graphics and Artificial intelligence. Fifth generation language. Powerful, multipurpose, expertassistant software packages with natural language and graphical interface for end users. ?DISK ?TAPE ?OPTICAL STORAGE SECONDARY STORAGE TRACKS START OF TRACKS DIRECTORY ON TRACK 0 SECTOR EACH TRACK HOLDS SAME AMOUNT OF DATA TRACKS AND SECTORS Source: Senn, Information Technology in Business1995 DISK PACK STORAGE ? LARGE SYSTEMS ? RELIABLE STORAGE ? LARGE AMOUNTS OF DATA ? QUICK ACCESS amp。 Media Computer 2 Tele softw are 五種基本部件 1. Terminals 2. Tele processors Modem, multiplexes amp。 media Copper wires, Coaxial cable, Fiber optic cables, microwave’s system, Communications satellites. 4. Computers Mainframe, Host puters Miniputer Front end processors Microputer Network server 5. Telecontrol software Monitors (Mainframe) Network operating systems (Micro) Communication package (Micro) 對絞線 Twisted wire 同軸電纜 Coaxial cable 光纜 Fiber Optic 陸基微波 Land based Microwave 通訊衛(wèi)星 Satellite 蜂窩網(wǎng) Cellular radio 無線 LAN Wireless LAN 網(wǎng)絡的類型 LANs Local Area Networks 有限空間 A of
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