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Title:

Software

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Software. ??? ????????????? ?????????????????????????????. ?????? ... Disk Management : Format, Defragment. Memory management. Data Recovery. Data Compression ... – PowerPoint PPT presentation

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Title: Software


1
Software
  • ??? ????????????? ?????????????????????????????
  • ?????????????????
  • System software
  • Application software
  • Customize Software
  • Package Software

2
System Software
  • ??????????
  • Operating System
  • Language Translator
  • Utilities
  • ?????????????????? Application Software ???
    Hardware

3
Operating Systems
  • ???????????
  • ??????/?????? ??????????? ?
  • ?????? CPU
  • ?????? ???????????
  • ????????????? Input / Output
  • ????/??????????????????????
  • ????????????????????????????
  • ???????????????????????????
  • ???????????????????????

4
????????? Operating Systems
  • Single program OS ????????? Run Application
    ?????????? 1 ???????????????
  • Multitasking OS ????????? Run Application
    ?????????????? ??????? ??? CPU ???????????????????
    ? (time sharing) ???????????????????????
  • Multiprocessing Operating Systems ??? CPU
    ??????? 1 ???????????????????? ??? OS
    ??????????????????????? ???????????
  • Asymmetric Multiprocessing Specific task
    ??????????? CPU ??? specific amount of memory
  • Symmetric Multiprocessing Share Task, Share
    memory
  • Virtual Machine OS ?????????????? Run OS
    ?????????? 1?????????????????????????????????????

5
?????????????????????
  • Fixed Partition ????????????????????????
  • Variable Partition ??? ?????????????????????????
  • Virtual Memory ?????????????????
  • ??????????????????????????????????????????????????
    ?????????? Main memory ??? Swap
    ????????????????????????? Memory
    ???????????????????????
  • ???????????????????? Swap
  • ??? PAGE
  • ??? SEGMENT

6
????????? Input/Output
  • Buffer - ?????????????????????????????????????????
    ????????????????? Input device ???????????????????
    ???? Output Device
  • Spooling - ???????????????????????????????????????
    ?? disk ???? ?????????????????????????????????????
    printer ??????
  • Device Driver - ?????????? OS ????????????????????
    ????? ???????????????????????????
    ??????????????????????????????????????????????????
    ?????????????????

7
User Interface
  • ??? ????????????????????????? ?????????????????
    2 ??????????
  • Command Line Interface ?????????????????????????
    ???? ??????? ????????????????????????
    ?????????????????????????????? ???????
  • Kernell - ???? Memory Resident
    ??????????????????????????? ?
  • Shell - ???????????????? User Interface
  • Graphical User Interface ??????? Graphic
    ????????????????????? ??????????????????????????
    ??????????????????????????????????????????????????
    ??????
  • User Friendly ????????????????????
    ?????????????????????????? ????
    ???????????????????????????????????????????????

8
Utilities Program
  • ?????????????????????????????????????????????? ?
  • ???????? Utilities Program ??????????? OS
    ???????? ????????????????????????
  • ???????? Function ????? ?? Utilities Program
  • File Management
  • Disk Management Format, Defragment
  • Memory management
  • Data Recovery
  • Data Compression
  • Virus Protection

9
File Management
  • ??????????????????????
  • Basic File Operation
  • Create
  • Add
  • Delete
  • Copy
  • Rename
  • Update

10
Virus
  • ??????????????????????????????????????????????????
    ????? ???
  • ??????????????????????????????????????????????????
    ??????????????????????
  • ??????????????????????????????????????????????????
    ?????????????????????????????? ???????????????????
    ?????????? ???????????????????????
  • ????????????????????????????????????
    ?????????????????????????(????????????????)
    ????????
  • ????????????????????????????????????????????
    ??????? ???? ?????????? ???? ??????? Norton
    AntiVirus , McAfee

11
Hierarchical file system
  • Directories
  • Subdirectories
  • Files

http//www.zdwebopedia.com/file_management_system.
htm
12
Popular OS
  • DOS (Disk Operating Systems)
  • Window95 , Window98
  • Window NT
  • ?????????? Client - Server
  • ???????????????????????????? ???
    ????????????????????????????????????????????????
  • ???????????????????????????? ????????????????????
    ????
  • Unix ????????????(library) ????????????????? gt
    400 ?????? ??????????????????????????????
  • OS/2 ???????????? IBM ???? Single User
    Multitasking OS ?????? PC ???? 32 bit
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