Uitgebreide samenvatting van het boek Information Systems Today: Managing in the digital world. Te gebruiken voor het vak Information Management voor het eerste jaar (vierde module, heet module 4 HOLI) van de studie International Business Administration op Universiteit Twente. Bevat hoofdstukken 1,...
Information Management summary
Information Systems Today: Managing in the digital world, Valacich, J. and
Schneider, C.
,Index
- Chapter 1
- Chapter 2
- Chapter 4 p. 168-199
- Chapter 7 p. 278-308
- Chapter 5 p. 212-241
- Chapter 10 p. 420-459
- Chapter 6 p. 254-287
- Chapter 3 p. 120-158
,CHAPTER 1
Computers = electronic devices that can only process binary (1 and 0) codes (bit)
American Standard Code for Information Interchange (ASCII) = combinations of binary codes
for 128 English characters
Byte = 7 bits for characters and one bit for checks
Hertz = one beat per second
Internet laws
1. Moore’s law
2. Kryder’s law
3. Nielsen’s law
4. Datacenters
5. Hyperscale
Moore’s law = number of transistors on a chip and related computer power doubles every
two years
Kryder’s law = hard disk capacity doubles every year
Nielsen’s law = user’s internet bandwidth grown by 50% every year from 1983-2018
Data centers = key nodes on the internet and have to invest in energy efficiency
Hyperscale = for example, Facebook has over 2 km2 datacenter floor
Lithography = technique by which you can make certain material in a shape
Changes in organizations and society
1. Mobile
2. Social media
3. Internet of Things
4. Cloud computing
5. Big data
Apps = software programs designed to perform a particular, well-defined function
BYOD = bring your own device
Consumerization of IT = many technological innovations are first introduced in the customer
marketplace before being used by organizations, and businesses have to constantly evaluate
how a wide variety of new technologies might influence their ways of doing business
Network effect = the notion that the value of network increases with the number of other
users
Internet of Things (IoT) = a network of a broad range of physical objects that can
automatically share data over the Internet
Sensors = devices that can detect, record, and report changes in the physical environment
Smart home technologies/home automation = technologies enabling the remote monitoring
and controlling of lighting, heating, or home appliances
Industrial Internet of Things (IIoT) = the use of IoT technologies in manufacturing
, Big data = extremely large and complex datasets
1. High volume
2. High variety
3. High velocity
4. Data-driven organization
Variety = structured and unstructured data, many sources
Velocity = rapid processing vs. traditional research
Data-driven organization = continuously planning
Computer literacy/information literacy = knowing how to use a computer
Computer fluency = the ability to independently learn new technologies as they emerge and
assess their impact on one’s work and life
Information system (IS) = combination of people and information technology that create,
collect, process, store, and distribute useful data
Information technology (IT)
1. Hardware
2. Software
3. Telecommunication networks
Hardware = physical computer equipment as well as components
Software = a program or set of programs that tell the computer to perform certain tasks
Telecommunication networks = a group of two or more computer systems linked together
with communications equipment
Data information knowledge
Data/unformatted data = raw symbols, such as characters and numbers
- No meaning in and of themselves
- Of little value until processed
Making data useful
1. Formatting
2. Organizing
3. Processing
Information = representation of reality, and can help to answer questions about who, what,
where and when
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