IT201 : Computer

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• IT201 Computer Information Technology
• ?. ????? ????????????

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• ????????????????????????????????????????????
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  ???????????? ?????????????????????????????????????
  ???
• ????????????????????????????????????????? ????
  ???????????? ??????????????? ??????????
  ?????????? ??????????? ???????

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Computer and Globalization

• Awareness
• Knowledge
• Interaction

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???????????????????????????? (Components of
Computer System)
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??????????????? ??????????

• 1. ????????? (Hardware)
• 2. ????????? (Software)
• 3. ??????? (Peopleware)
• 4. ?????? (Data)

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Hardware

• Input unit
• Output unit
• Secondary storage unit
• Processing unit

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?????????????? (Input devices)
More input units you can think of?
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???????????????? (Output devices)
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??????????????????? (Storage)
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Hard disk
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Removable Diskettes
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Compact disks (CDs)
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????????????? (CPU)
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??????????????? ??????????

• 1. ????????? (Hardware)
• 2. ????????? (Software)
• 3. ??????? (Peopleware)
• 4. ?????? (Data)

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2. ????????? ????????????????????????????????????
??????????????????????????????? ??????????????????

• ??????????????????
• ?????????????
• ?????????????????

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3. Peopleware ??????????????????????????????????
???????

• ????????????????? (User)
• ??????????????????????????
• - Programmer
• - System Analyst
• ?????????????????
• ????????????????????????

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4. Data

• Data ??????????????????????????????
  ?????????????????????????????????????????????????
  ???????? ???????????????????????????
• Information ????????????????????????????????????
  ? (Data) ?????????????????????????????????
  ????????????????????????????? ????????????????????
  ?

Processing
Information
Data
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??????????????????????????????

• Accuracy and Reliability
• Completeness
• Relevance
• Up-to-date
• Accessible

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????????????????????

• 1. ?????????????????? (Supercomputer)
• 2. ??????? (Mainframe)
• 3. ??????????????? (Minicomputer)
• 4. Workstation (Super Microcomputer)
• 5. ????????????????(Microcomputer)
• desktop computer, notebook, and PDA

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Page 10 in book

• Single user
• Multi-user

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??????????????????????

• High speed
• Accuracy and reliability
• Storage capability byte, MB, GB
• Productivity
• No Bias
• Decision making
• Communication
• Cost reduction
• Accessible anywhere
• Reducing Date redundancy

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????????????????????????????

• No emotion
• Learning time
• Information flood junk mail
• Health problem
• Technological terrorists
• Lack of privacy

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Computer in near future

• Smaller size
• Fast computation
• Easy to use

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Example of peopleware

• User
• Programmer
• System analysts
• Network managers
• Computer director
• Chief information officer (CIO)
• Web master

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Homework 1

• ?????????????? 1-10
• ??????????????
• ????????? ?????? ??? ????????? ?????????