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Your Future and
Computer
Competency
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© The McGraw-Hill Companies, Inc.
2000
CE 1
Objectives
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Five parts of info system
Application vs. systems software
Four kinds of computers
Four types of files
Connectivity, Internet and Web
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2000
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Five Parts of Information Systems
• People
• Procedures
• Software
• Hardware
• Data
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© The McGraw-Hill Companies, Inc.
2000
CE 3
Information System
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© The McGraw-Hill Companies, Inc.
2000
CE 4
People
• Most important part
• Contact
– Direct
– Indirect
• Make technology
work
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© The McGraw-Hill Companies, Inc.
2000
CE 5
Software
• AKA programs
• Instructions
• Two major kinds
– System software
– Application software
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© The McGraw-Hill Companies, Inc.
2000
CE 6
System Software
• Interact with hardware
– “Background” software
– Operating system software
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© The McGraw-Hill Companies, Inc.
2000
CE 7
Application Software
• “End-user” software
• Two major categories
– General
– Specialized
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© The McGraw-Hill Companies, Inc.
2000
CE 8
Advanced Applications
Type
Description
Multimedia
Integrates video, music voices,
graphics
Web publishers
Interactive multimedia Web pages
Graphics programs
Professional publication creation
Virtual reality
Three-dimensional virtual or
simulated environments
Artificial intelligence
Simulate thought processes and
actions
Project managers
Plan and control projects, schedules,
people, and other resources
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© The McGraw-Hill Companies, Inc.
2000
CE 9
Hardware
• Physical devices
• Five functions
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© The McGraw-Hill Companies, Inc.
2000
CE 10
Types of Computers
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Supercomputers
Mainframe computers
Minicomputers
Microcomputers
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© The McGraw-Hill Companies, Inc.
2000
CE 11
Supercomputers
• High capacity
• Used by large organizations
– Tracking space
– Tracking weather
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© The McGraw-Hill Companies, Inc.
2000
CE 12
Mainframe computers
• Specially wired
• Air-conditioned rooms
• Used for large volume
processing
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2000
CE 13
Minicomputers
• Also known as midrange
computers
• Medium-size companies
• Departments of large
companies
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© The McGraw-Hill Companies, Inc.
2000
CE 14
Microcomputers
• Desktop, notebook,
PDAs
• Notebook (laptop)
• Subnotebooks
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© The McGraw-Hill Companies, Inc.
2000
CE 15
Microcomputer Hardware
• System Unit
• I/O Devices
• Secondary
Storage
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© The McGraw-Hill Companies, Inc.
2000
CE 16
Output Devices
• Equipment that translates data
– Monitors
– Printers
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© The McGraw-Hill Companies, Inc.
2000
CE 17
Communication Devices
• Sends and receives
– data and programs
• Needs include
– modem
– cable modem
– digital subscriber services
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© The McGraw-Hill Companies, Inc.
2000
CE 18
Data
• Contained in files
– Documents
– Worksheets
– Databases
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© The McGraw-Hill Companies, Inc.
2000
CE 19
Connectivity and Internet
•Connectivity
–ability to communicate
•The Internet
–the largest network in the world
–World Wide Web multimedia
component
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© The McGraw-Hill Companies, Inc.
2000
CE 20
Future Look
• Take advantage of increasing
productive systems
• Employers expecting user to
know
– application software
– system software
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© The McGraw-Hill Companies, Inc.
2000
CE 21
Future Look
• Security and privacy
growing concern
• Technology changing
primary way businesses
behave
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© The McGraw-Hill Companies, Inc.
2000
CE 22
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© The McGraw-Hill Companies, Inc.
2000
CE 23