Computer Hardware

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Computer Hardware
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Learning Objectives

• Identify the major types and uses of
  microcomputer, midrange, and mainframe computer
  systems.

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Types Of Computer Systems

• Examples of computer system categories
• 1. Microcomputer systems
• personal computers, personal digital
  assistants, etc.
• 2. Midrange systems
• network servers, web serves, etc.
• 3. Mainframe systems
• enterprise systems, supercomputers, etc.

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Technical Note The Computer System
Concept
Central Processing Unit
Control Unit interprets instructions and directs
processing
Arithmetic Logic Unit performs arithmetic
operations and make comparisons
Output Devices communicate and record information
Input Devices enter data and instructions into
the CPU
Visual display unit, printer, etc.
Special Purpose Processors
Cache Memory
Primary Storage (Memory) storages data and
program instructions during processing
Keyboard, Mouse, Touch Screen, etc.
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Input Technologies

• Pointing devices
• (electronic mouse a trackball a pointing
  stick touchpad touch screens pen based
  computing)
• Speech recognition system
• Optical scanning
• Other input technologies
• (magnetic stripe smart cards digital
  cameras)

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Output Technologies

• Video output
• (video monitors liquid crystal displays)
• Printed output
• (inkjet printers laser printers)

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Peripherals For A Business PC
PERIPHERALS CHECKLIST
Monitors (bigger is better)
Printers (laser printers/color inkjet printers)
Scanners
Hard disk drives (bigger is better)
CD and DVD drives
Backup systems (essential)
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Real World Case 3Delta Airlines The Business
Value Of Customer Self Service Kiosks

• For travelers, the best trips are fast and hassle
  free, with limited time spent at
• the airport. Thats why Atlanta based Delta Air
  Lines Inc. teamed up with its
• technology subsidiary, Delta Technology Inc. to
  deploy hundreds of self
• service check in kiosks at airport across the
  country, with a goal of speeding
• travelers to their destination.
• There are now 449 kiosks installed at airports in
  81 US cities. The kiosks had
• been part of Deltas multiyear business plan, but
  when airport increased
• security in the wake of the September 11
  terrorist attacks and the amount of
• time customers spent waiting in line grew longer,
  the airline decided to
• accelerate the project.

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Real World Case 3Delta Airlines The Business
Value Of Customer Self Service Kiosks (continued)

• The kiosks help customers shave 5 to 15 minutes
  off the time
• they have to stand line. Passengers can use the
  kiosks to check in
• for their flights, get boarding passes for
  originating or connecting
• flights, select or change seats, request to stand
  by for an upgrade,
• check baggage, and change flights.
• From the business side, the kiosks are the
  cornerstone of a
• broader airport strategy to offer customers more
  control. The self
• service kiosks are really networked special
  purpose
• microcomputer terminals, featuring video touch
  screens as the
• primary user interface, a built in high speed
  thermal printer for

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Real World Case 3Delta Airlines The Business
Value Of Customer Self Service Kiosks (continued)

• Printing flight itineraries and boarding passes,
• and a magnetic stripe card reader to read
• customers airline and credit cards.

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Real World Case 3Delta Airlines The Business
Value Of Customer Self Service Kiosks (continued)

• What computer system technologies and functions
  are included in self service kiosks?
• What other technologies should be provided?
• Why?
• What is the customer value of self service kiosks
  for airline check ins? What other services should
  be provided?
• What is the business value of self service kiosks
  in the airline industry? Do self service kiosks
  give airlines a competitive advantage?

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