WGU D322 Introduction to IT Correct answers
latest update
Information Technology
technology used in creating and making information accessible.
IT Professional Roles
Administration / Support
System Administrator
Maintains system (hardware, software, and programming)
Network Administrator
In charge of the computer network
Database Administrator
Focuses on the design, development, and support of DBMS
Security Administrator
Installs/administers firewall security to protect systems and stop intrusions.
Web Administrator
Installs/troubleshoots web severs.
Support IT Professionals
Help desk and training.
Information
Processed data.
DIKW Hierarchy
Data Information Knowledge Wisdom
Data in DIKW
The input
(not usable until it converted into a relevant form)
Information in DIKW
inferred from data
data transformed into a useful form by applying 1+ processes
Knowledge in DIKW
(Refined) Information placed into a context.
recalling relevant information
,Wisdom in DIKW
Provides a social setting to knowledge
an understanding of the "why"
knowledge and experience.
Information Systems
A collection of data and information that supports decision making in an organization.
Existed for a lot longer than computers.
Enables data processing and storage them delivering information
Characteristics of Quality Data
Relevance - relates directly to decision being made
Timely - efficient and provided in a timely manner
Thorough - the data must be complete
Accurate - data = captured only once (where possible). Captured as close as possible to the point of
activity
Reliable - stable and consistent over time
IPOS
The Input-Procession-Output-Storage Cycle
Input
Raw data is entered by the user.
Processing
Raw data is structured for usefulness.
Output
Information is output so user can see results.
Storage
Processed info stored for permanent record.
Computer System
A collection of components working together to meet the users needs;
hardware, software, networks, users.
Hardware is the
And contains the ____ and ________
Physical components (tangible)
system unit and peripheral devices
, Software contain the 1) 2)that perform this function 3)to accomplish
Computer programs
That tell the computer how to
process information then execute commands
Network is a ____ of _______ and _______
These things communicate with each other by ______ _______
A collection of computers and resources that communicate with each other by various media
User
Those who use a computer.
Software Categories
Systems Software
Applications Software
Evolution of Users 1,2,3
First users: engineers who built and programmed computers
Next: employees who had received specialized training
Today: anyone can be a user.
Protocol is the
Rules for computers to communicate by
2 most common protocols
TCIP
IP
TCP/IP is required by all ______that _________
Transmission Control Protocol/Internet Protocol
required of all computers that communicate over the Internet.
Protocol Stack
A collection of protocols
EX: TCP/IP
Components of a Computer 1) 2)__&___ 3)
CPU, Memory and Storage, Peripheral Devices
CPU
Executes programs _______
____________ components of computer
AKA the "______"
Executes programs' instructions
commands various components in the computer
The "chip"
latest update
Information Technology
technology used in creating and making information accessible.
IT Professional Roles
Administration / Support
System Administrator
Maintains system (hardware, software, and programming)
Network Administrator
In charge of the computer network
Database Administrator
Focuses on the design, development, and support of DBMS
Security Administrator
Installs/administers firewall security to protect systems and stop intrusions.
Web Administrator
Installs/troubleshoots web severs.
Support IT Professionals
Help desk and training.
Information
Processed data.
DIKW Hierarchy
Data Information Knowledge Wisdom
Data in DIKW
The input
(not usable until it converted into a relevant form)
Information in DIKW
inferred from data
data transformed into a useful form by applying 1+ processes
Knowledge in DIKW
(Refined) Information placed into a context.
recalling relevant information
,Wisdom in DIKW
Provides a social setting to knowledge
an understanding of the "why"
knowledge and experience.
Information Systems
A collection of data and information that supports decision making in an organization.
Existed for a lot longer than computers.
Enables data processing and storage them delivering information
Characteristics of Quality Data
Relevance - relates directly to decision being made
Timely - efficient and provided in a timely manner
Thorough - the data must be complete
Accurate - data = captured only once (where possible). Captured as close as possible to the point of
activity
Reliable - stable and consistent over time
IPOS
The Input-Procession-Output-Storage Cycle
Input
Raw data is entered by the user.
Processing
Raw data is structured for usefulness.
Output
Information is output so user can see results.
Storage
Processed info stored for permanent record.
Computer System
A collection of components working together to meet the users needs;
hardware, software, networks, users.
Hardware is the
And contains the ____ and ________
Physical components (tangible)
system unit and peripheral devices
, Software contain the 1) 2)that perform this function 3)to accomplish
Computer programs
That tell the computer how to
process information then execute commands
Network is a ____ of _______ and _______
These things communicate with each other by ______ _______
A collection of computers and resources that communicate with each other by various media
User
Those who use a computer.
Software Categories
Systems Software
Applications Software
Evolution of Users 1,2,3
First users: engineers who built and programmed computers
Next: employees who had received specialized training
Today: anyone can be a user.
Protocol is the
Rules for computers to communicate by
2 most common protocols
TCIP
IP
TCP/IP is required by all ______that _________
Transmission Control Protocol/Internet Protocol
required of all computers that communicate over the Internet.
Protocol Stack
A collection of protocols
EX: TCP/IP
Components of a Computer 1) 2)__&___ 3)
CPU, Memory and Storage, Peripheral Devices
CPU
Executes programs _______
____________ components of computer
AKA the "______"
Executes programs' instructions
commands various components in the computer
The "chip"
