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Chapter 1

Computer Science 1032A/B Chapter Notes - Chapter 1: Supreme Headquarters Allied Powers Europe, Word Processor, Hal Varian


Department
Computer Science
Course Code
COMPSCI 1032A/B
Professor
Louis Magguilli
Chapter
1

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CHAPTER 1: INFORMATION SYSTEMS AND YOU
WHAT IS AN INFORMATION SYSTEM?
Information system (IS): a group of components that interact to produce information
Five-component framework: the 5 fundamental components of an IS that are present in every IS, from the simplest
to most complex
oComputer hardware
oSoftware (instructions for computers)
oData (recorded facts or figures)
oProcedures (instructions for humans)
oPeople (those who operate and service the computers, maintain data, support networks, use the system)
People are often the most critical part of an IS, not just computers and data
Computer-based information system: an IS that includes a computer
WHAT IS MIS?
Management information systems: the development and use of information systems that help businesses achieve
their goals and objectives
o3 key elements: development and use, information systems, business goals and objectives
Development and Use of IS
For an IS to meet your needs, you need to take an active role in that system’s development
You will have important roles in the use of IS
oProtecting security of system and data
oBack up data to protect from losing important information
oWhen the system fails, help recover the system quickly and correctly
Achieving Business Goals and Objectives
Businesses themselves don’t “do” anything, it’s the people within a business who sell, buy, design, produce, market,
account, and manage
IS exist to help people achieve the goals/objectives of that business
IS VS. IT
Information technology (IT): methods, inventions, standards, and products that are used for the purpose of
producing information
oConcerns only the hardware, software, and data components of an IS
Only when IT is embedded into an IS (technology within hardware, software, data combined with people and
procedure) that IT becomes useful
HOW IMPORTANT ARE IS TO OUR ECONOMY?
Information and Communications Technologies (ICT) sector: provides products and services that other industries
rely on to get their work done
oIndustry sector most closely related to IS in Canada
oSoftware & computer services, cable & other program distributors, telecommunication, ICT manufacturing,
ICT wholesaling
Software publishers, business-communication services, data processing, computer system design and related services
HOW DO SUCCESSFUL BUSINESS PROFESSIONALS USE IS?
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