What is Information?
Is There Anything That Isn't Information?
There have been many descriptions and characterizations of information through the
years, some very broad, some narrow and some humorous. Information may be hard to define
but it can be categorized. There are several characteristics of information: Factual,
analytical. subjective or objective. Information can be found in primary, secondary or
tertiary sources depending on how original the materials are or how much they have been
interpreted or condensed by others.
The type, quality and amount of information has changed greatly through the ages, but a
human's ability to process the information has remained the same, creating what some call
information overload. Which brings us to the purpose of this course - to help you become
"information literate."
What is it?
For definitions we usually turn to a dictionary or encyclopedia. It's a good place or
start.
Merriam-Webster Online Dictionary (http://www.m-w.com/cgi-bin/dictionary)
in·for·ma·tion
Date: 14th century
1 : the communication or reception of knowledge or intelligence 2 a (1) : knowledge
obtained from investigation, study, or instruction (2) : INTELLIGENCE, NEWS (3) : FACTS,
DATA b : the attribute inherent in and communicated by one of two or more alternative
sequences or arrangements of something (as nucleotides in DNA or binary digits in a
computer program) that produce specific effects c (1) : a signal or character (as in a
communication system or computer) representing data (2) : something (as a message,
experimental data, or a picture) which justifies change in a construct (as a plan or
theory) that represents physical or mental experience or another construct d : a
quantitative measure of the content of information; specifically : a numerical quantity
that measures the uncertainty in the outcome of an experiment to be performed 3 : the act
of informing against a person 4 : a formal accusation of a crime made by a
prosecuting officer as distinguished from an indictment presented by a grand jury.
According to the International Encyclopedia of Information and Library Science, information is "best seen as holding the place in the spectrum between raw data and knowledge. Seen in this way, information is an assemblage of data in a comprehensible form capable of communication and use: facts to which meaning has been attached."
In this sense, almost everything could be information - facts (events, concepts, objects, etc.) that carry meaning and can be communicated.
The following quotations show how broad this definition can be.
"Information is all ideas, facts and imaginative works of the mind which have been
communicated, recorded, published and/or distributed formally or informally in any
format."
-American Library Association
"In the beginning there was information. The word came later. The transition was
achieved by the development of organisms with the capacity for selectively exploiting this
information in order to survive and perpetuate their kind."
-Dreske, Fred. Knowledge and the Flow of Information. 1st MIT Press edition, 1981 Bredford
Books.
"Data becomes information only when it's put into a context."
-John McChesney, National Public Radio reporter
Information is:
"The time of day-as is tomorrow's weather, a ship's course, and a baby's weight. The
contents of a typed memo - as are the contents of every book written and of the Louvre and
every other museum. Birds sounds and Presidential speeches, radio shows and all the music
aver played and to be played. All 20,000 commercial videos and movies. The process of
designing a house or a car - most of the office work carried out by hundreds of millions
of people. Military orders, medical test results, and assembly instructions - business
procedures and all computer software."
-Dertousous, Michael L. What will be: How the New World of Information Will Change Our
Lives. 1997. NY: HarperCollins.
"Knowledge is of two kinds. We know a subject ourselves, or we know where we can
find information upon it."
-Samuel Johnson, 1775
"Information is any difference that makes a difference"
-Gregory Bateson, 1984
"Information, free from interest or prejudice, free from the vanity of the writer
or the influence of a Government, is as necessary to the human mind as pure air and water
to the human body."
-William Rees-Mogg, 1970
Information should be placed in context. It should help answer whys and wherefores. It should reveal patterns and relationships. It should help us understand the world in greater depth, as opposed to just skimming the surface.
Data & facts > information > knowledge & meaning
Readings
NASA's definition of information:
http://ssdoo.gsfc.nasa.gov/nost/isoas/presentations/USDA_19990219/sld013.htm
Characteristics of Information
Knowing the character or type of information can help you to identify its origin and use. There are several kinds of information that can be useful for different reasons. (Top of page)
Factual Information
Subjective Information
Objective Information
Information can come from many sources. The farther away from
the original source the information is found, the more likely it is to be filtered,
interpreted, condensed or otherwise changed. There are primary, secondary and tertiary
sources of information (Top of page)
Primary Information
Information in its original form, when it first appears
Examples are a professor's lecture, newspaper articles written by people at the scene of an event, the first publication of a scientific study, an original artwork, a handwritten manuscript, letters between two people, someone's diary, historical documents such as the U.S. Constitution
Secondary Information
Information ABOUT a primary or original source
Examples are your classmate's notes on a professor's lecture, a newspaper article reporting on a scientific study published elsewhere, an article critiquing a new CD, an encyclopedia article on a topic, a biography of a famous person
ALSO, secondary information:
Examples are an index to newspaper articles or an index to articles from scientific research journals, a bibliography of an author's works
Tertiary Information (2x removed)
Information that is a distillation or a collection of primary and secondary sources.
Examples are a bibliography of critical works on an author, an index to general periodical articles, a library catalog
An Example:
Your favorite musician
Information Overload
With the advent of the Information age it seems that there is way too much information for us to absorb. The increase in publishing, the growth of news and other media, the advances in worldwide communications and now the explosion of information on the Internet all contribute to the sense that finding the information we need is just about impossible. This is where Information Literacy comes in - knowing when you need the information, knowing how to find it, evaluate it and knowing how to use it. (And that's the reason for this course.)
Information overload is not a new concept. In fact, it's been around for quite a while, beginning long before the Information Age.
A few quotes...
Of course, in the information age information overload is easily recognized:
How much information is there today? Please look over the University of California,
Berkeley site, "How much information?"
http://www.sims.berkeley.edu/research/projects/how-much-info-2003/
Keep in mind that:
Obviously, we're dealing with far more information than Martin Luther or Edgar Allan Poe,
but our brains really aren't working any faster than in times past. That's the Challenge
of Information.
Information Ages
The need for information has changed over the course of human history, which can be roughly divided into the following ages:
Stone Age- Agricultural Age - Industrial Age - Information Age
Compare the following considerations in information transfer from one age to the next:
Stone Age
Basic needs for food, clothing, shelter and protection took most of a person's time.
Hunters and gathers loved in roaming groups of 20-30 people and only the most immediate or
important information was recorded.
Means of Communications
Speed, SIze and Purpose of Communication
Agricultural Age
By 9,000 B.C. people were more settled and lived in small communities and growing crops.
The wheel provides locomotion to begin more travel and shipping of goods, Animal
domestication changes life dramatically.
Means of Communications
Later Advancements in Communication
Industrial Age
During the Industrial Revolution (beginning around 1780) commerce, trade and politics
sparked the change from the Agricultural Age to the Industrial Age. Farming loses ground
to manufacturing and industry in Europe and America.
New Technology Tools for the Industrial Age
New Communication Methods of the Industrial Age
The Information Age
Beginning roughly around 1950, the Information Age brought more tools, technology and
information. More white collar workers deal with information needs and decisions than blue
collar workers deal with goods-producing jobs. Industrial Vs. Information Age Worker
Needs
| Industrial Age Worker |
| Information Age Worker |
Some Tools and Technology of the Information Age
The Challenge of Information
Despite the massive change in information storage and retrieval technology over time, our capacity to understand and synthesize information has remained constant. Beth Clough, a student of library science and the University of Maryland, offers this very instructive historical overview of information storage and retrieval:
Information Storage
| 3000 B.C. | Clay tablets | 1 character/1 cubic inch (cci) |
| 1450 A.D. | Printed page | 500 cci |
| 1990s | Optical disk | 125,000,000,000 cci |
Computation
| 5000 B.C. | Abacus | 2-4 instructions per second (ips) |
| 1945 A.D. | Computer | 110 ips |
| 1960 | Computer | 100,000 ips |
| 1970s | Computer | 1,000,000 ips |
| 1980s | Computer | 10,000,000 ips |
| 1990s | Computer | 1,000,000,000 ips |
Transmission of Information
| 4000 B.C. | Messenger | .01 words per minute (wpm) |
| 1844 A.D. | Telegraph | 50-60 wpm |
| 1980s | Cable/fiber | 1,000,000,000 wpm |
| 1990s | Fiber | 100,000,000,000 wpm |
Human Information Processing
| 4000 B.C. | Written Language | 300 wpm |
| Today | Written Language | 300 wpm |
| 4000 B.C. | Visual images | 100,000,000 bits per glance |
| Today | Visual images | 100,000,000 bits per glance |
| 4000 B.C. | Spoken language | 120 wpm |
| Today | Spoken language | 120 wpm |
Information Literacy
In light of the sheer amount of information available as well as the varying quality, formats, and types of information, the ultimate goal of this course is to increase your information literacy.
Information Literacy has been defined as being able to "recognize when information is needed and have the ability to locate, evaluate and use effectively the needed information."
This definition is closely related to the goals of LIB120. Specifically, after completing this course you will be able to:
This course was developed by Joanna Burkhardt, Mary MacDonald and Andrée Rathemacher and was adapted for online use by Jim Kinnie as part of the URI Libraries Plan for Information Literacy - http://www.uri.edu/library/instruction_services/infolitplan.html
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