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MIS Chapter 4




Hardware Systems
Review
• Five competitive forces
  –   Customer bargaining power
  –   New entrant threat
  –   Supplier bargaining power
  –   Substitution threat
  –   Industry rivalry
• An organization responds by choosing a
  competitive strategy
• Competitive strategy defines value chains and
  linkages (information systems).
Seth Godin
Four Computer Operations
•   Input
•   Processing
•   Output
•   Storage

“A computer is something that does stuff to data.”
Data Defined
• Binary digits (bits)
   – Used to represent data
       • Bit is either zero or one
• Sizing Computer Data
   – Bytes
   – 8-bit chunk equals 1 byte
   – Size of main memory, storage devices etc.
Four Computer Operations
Input Systems
• Keyboard
• Mouse
• Microphone
• Video camera
• Image scanner
• Information scanner (bar code scanner, scantron
  machine)
• Digital Pen
• Graphics Tablet
Livescribe Pen
Keyboard & Mouse
•   Ergonomics
•   Function Keys
•   Optical Mouse
•   Wireless
Microphones
•   Customer Service
•   Interviewing
•   Recording webinars
•   Podcasts
•   Conferencing
Cameras
•   Quality Control
•   Video Marketing
•   Webinars
•   Video Conferencing
Scanner
• Office Efficiency
• Digitally sign paperwork.
Printers

• Inkjet
• Laser
• Dot-Matrix

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