### message | information:

Datum
* All data is an abstraction or a representation of something real.
* Data accumulated through observation is the basic source of knowledge in science
  - also show that females immigrate into colonies more frequently than males
* Data are bits of information analyzed to draw and explain conclusions
  - entities that convey meaning
  - items of information on which scientific inquiry are based
  - means of distances in meters traveled during sample days
  - patterns stored on a passive medium like a computer disk
  - pieces of information that become useful when they are organized in a meaningful way
  - raw facts that contain time, content, and form
* Data are simply numbers or alphabetic characters which represent some entity or entities
  - pieces of information that are used to describe the world
  - the basic elements of information
* Data are the building blocks of knowledge and the lifeblood of research
  - knowledge and the seeds of discovery
  - scientific knowledge and the seeds of discovery
  - components of information
  - outcome of experiments, or observations
  - pieces of information that are operated on by programs
  - time, in decimal day, and concentration, in micrograms per liter
  - becomes information when it can be fit into a pattern of data that has meaning
  - binding allows developers to create objects that represent database records
  - can come in many forms, such as text , graphics and sounds
  - classification of seasonal land cover types
* Data collection of facts, measurements or observations
  - unorganized facts, which can include words, numbers, images, and sounds
  - cutoffs and scheduling are integral parts of a model's input and output
  - diagramming involves integrating graphics and data
  - driven graphics rather than graphics driven data is how information is managed
  - drives decisions and actions
* Data encoding involves the translation of data in one form to another
  - obfuscations affect how the stored data is interpreted
  - file A file that contains data from a database
  - form of power
  - have formats, written in a language that a computer can read
  - is always data relative to a theory, or a small number of competing theories
* Data is any information that is collected in order to learn something
  - the student can observe, measure, and then record
  - bits and bytes
* Data is information organized for analysis or used as the basis for making a decision
  - which the computer references as it runs it's program
* Data link efficiency is effected by the losses introduced by splices and connectors
  - system in which written information is transmitted to pilots in the cockpit
  - means information, like a person's name, address, and phone number
  - modeling defines the relationships between data elements and structures
  - objects in messages are types
  - refer to the number of persons in the total population per square kilometre of the total area
  - scrambling enables data to be encrypted
* Data show that anti-obesity drugs help some people to lose weight and maintain weight loss
  - human health is related to environmental health
  - updating involves altering, adding, or deleting data stored in local or remote files
* Some data indicate that formation of prostacyclin suppresses atherogenesis
  - obesity among children is on the increase
  - suggest big brown bats forage orient toward the loudest natural sound fields
* Some data suggest that it reduces the blood's tendency to clot
  - smokers differ widely in readiness to quit
* are information.
+ RAID, Basics: simple RAID levels, RAID levels used less, RAID 2: Storage devices
  * This was used with very large computers. Special expensive disks and a special controller are needed to use RAID Level 2. Special calculations are done. Data is split up into static sequences of bits. 8 data bits and 2 parity bits are put together. Then a Hamming code is calculated. The fragments of the Hamming code are then distributed over the different disks.