管理信息系統(tǒng)計(jì)算機(jī)硬件軟件-展示頁(yè)
2024-09-01 16:50本頁(yè)面
【正文】 圖 計(jì)算機(jī)軟件分類 Operating System DOS, UNIX, WINDOWS ＮＴ ＷＩＮＤＯＷＳ ＯＥ Ｏｒａｃｌｅ ＤＢ２ General Applications Office Sys. Deve. Language Power Builder Special Application SAP, JDE, Oracle 用友 CASE 操作系統(tǒng) Operating System 用戶接口 User Interface 資源管理 支持服務(wù) 文件管理 任務(wù)管理 Resources Task Document Support Management Management Management service ?機(jī)器語(yǔ)言 (Machine Language) ?匯編語(yǔ)言 (Assembler Language) ?高級(jí)語(yǔ)言 (HighLevel Language) ?第四代語(yǔ)言 (FourthGeneration Language) 計(jì)算機(jī)語(yǔ)言 (Programming Language) 機(jī)器語(yǔ)言 高級(jí)語(yǔ)言 1010 11001 Basic: X=Y+Z 1011 11010 COBOL: 1100 11011 COMPUTE X=Y+Z 匯編語(yǔ)言 4GL LOD Y Sum The ADD Z Following Numbers STR X Y, Z 軟件發(fā)展趨勢(shì) 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(guò)程自然語(yǔ)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。 RETRIEVABLE ? TYPICAL: 11 2SIDED DISKS ? CYLINDER: SAME TRACK ALL SURFACES CYLINDER 10
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