Information Technology - ANSWER The technology used in creating, maintaining,
and making information accessible.
IT Professional Roles - ANSWER Administration and Support
System Administrator - ANSWER Maintains all aspects of the system including
hardware, software, and programming.
Network Administrator - ANSWER In charge of all aspects of the computer network
Database Administrator - ANSWER Focuses on the design, development, and
support of database management systems (DBMSs).
Security Administrator - ANSWER Installs, configures, and administers firewall
security to protect systems and proactively work to stop intrusions.
Web Administrator - ANSWER Installs, configures, maintains, secures, and
troubleshoots web severs.
Support IT Professionals - ANSWER Help desk and training.
Information - ANSWER Processed data.
DIKW Hierarchy - ANSWER Defines the transition of data to information from
knowledge to wisdom. (Data Information Knowledge Wisdom)
Data in DIKW - ANSWER The input directly received by the user (or computer). It is
generally not usable until it has been converted into a relevant form.
Information in DIKW - ANSWER Having been inferred from data; one or more
processes have been applied to the data to transform it into a more useful form.
Knowledge in DIKW - ANSWER Information that has been put to use; information
placed into a context. Refined information such that the user of the knowledge is
able to call forth only relevant portions of information when needed.
Wisdom in DIKW - ANSWER Provides a social setting to knowledge; an
understanding of the "why". Can only come by having both knowledge and
experience.
Information Systems - ANSWER A collection of data and information used to
support the management of an organization. Also refers to the technical components
and human resources that enable the assembly, storage, and processing of data and
the delivery of information. This has existed for a lot longer than computers.
Characteristics of Quality Data - ANSWER Relevance - the data being used must
apply directly to the decision being made
,Timely - data must be efficient and must be provided in a timely manner
Thorough - the data must be complete
Accurate - data should be captured only once, where possible and should be
captured as close to the point of activity as possible.
Reliable - data should reflect stable and consistent data collection processes across
collections points and over time
IPOS - ANSWER The Input-Procession-Output-Storage Cycle
Input - ANSWER Raw data is entered by the user.
Processing - ANSWER Raw data is organized or structured for usefulness.
Output - ANSWER Information is output so user can see results.
Storage - ANSWER Processed information is stored for permanent record.
Computer System - ANSWER A collection of components that work together to
meet the needs of the user; typically categorized as either hardware, software,
networks, or users.
Hardware - ANSWER Physical components of a computer system which include the
system unit and its components and peripheral devices; tangible aspects of the
computer.
Software - ANSWER Computer programs that tell the computer what to do--how to
execute commands and process information
Network - ANSWER A collection of computers and resources connected by various
media so that they can communicate with each other.
User - ANSWER Those who use a computer.
Software Categories - ANSWER Systems Software and Applications Software
Evolution of Users - ANSWER First users were the engineers who built and
programmed computers, then employees who had received specialized training were
users, and now today, anyone and everyone can be a user.
Protocol - ANSWER Rules provided by which networks communicate with each
other.
TCP/IP - ANSWER Transmission Control Protocol/Internet Protocol. Most
commonly used protocol; is required of all computers that communicate over the
Internet.
, Protocol Stack - ANSWER A collection of protocols. TCP/IP is an example.
Components of a Computer - ANSWER CPU, Memory and Storage, Peripheral
Devices
CPU - ANSWER Executes programs' instructions and commands various
components in the computer. Referred to as the "chip".
Memory - ANSWER Stores the programs being executed and the data they are
using.
I/O Subsystem - ANSWER All peripheral devices where long term storage devices
are used.
Bus - ANSWER Permits information to move between each component; electrical
channels that enable communication among the electronic components
System Unit - ANSWER Critical component of all computer based systems; consists
of most of the hardware the computer needs in order to run; comes in a variety of
shapes and sizes.
Internal Components of the System Unit - ANSWER Case, Internal Bays, Buses,
Ports, Hard Drive, Motherboard, CPU, CPU Cooler, Memory Module (RAM), Power
Supply Unit (PSU), Expansion Slots/Cards
Parts of the CPU - ANSWER Control Unit (CU) - retrieves the instructions and the
raw data that is input and coordinates or controls the sending of those instructions
and data to the ALU
Arithmetic Logic Unit (ALU) - does the actual processing of the data; completing
mathematical calculations and logical operations to process the data and converting
the input of the keyboard text entry to output displayed on the screen
System Clock - ANSWER Controls the speed at which instructions are processed.
RAM - ANSWER Stands for Random Access Memory.
It temporarily stores data before it is processed and sent to your screen or printer.
It is volatile (means data or information stored disappears when the computer is
turned off or loses power).
You can choose the amount of RAM your computer has.
Types of RAM - ANSWER Dynamic RAM (DRAM) - typically called main memory
Static RAM (SRAM) - cache memory and registers
and making information accessible.
IT Professional Roles - ANSWER Administration and Support
System Administrator - ANSWER Maintains all aspects of the system including
hardware, software, and programming.
Network Administrator - ANSWER In charge of all aspects of the computer network
Database Administrator - ANSWER Focuses on the design, development, and
support of database management systems (DBMSs).
Security Administrator - ANSWER Installs, configures, and administers firewall
security to protect systems and proactively work to stop intrusions.
Web Administrator - ANSWER Installs, configures, maintains, secures, and
troubleshoots web severs.
Support IT Professionals - ANSWER Help desk and training.
Information - ANSWER Processed data.
DIKW Hierarchy - ANSWER Defines the transition of data to information from
knowledge to wisdom. (Data Information Knowledge Wisdom)
Data in DIKW - ANSWER The input directly received by the user (or computer). It is
generally not usable until it has been converted into a relevant form.
Information in DIKW - ANSWER Having been inferred from data; one or more
processes have been applied to the data to transform it into a more useful form.
Knowledge in DIKW - ANSWER Information that has been put to use; information
placed into a context. Refined information such that the user of the knowledge is
able to call forth only relevant portions of information when needed.
Wisdom in DIKW - ANSWER Provides a social setting to knowledge; an
understanding of the "why". Can only come by having both knowledge and
experience.
Information Systems - ANSWER A collection of data and information used to
support the management of an organization. Also refers to the technical components
and human resources that enable the assembly, storage, and processing of data and
the delivery of information. This has existed for a lot longer than computers.
Characteristics of Quality Data - ANSWER Relevance - the data being used must
apply directly to the decision being made
,Timely - data must be efficient and must be provided in a timely manner
Thorough - the data must be complete
Accurate - data should be captured only once, where possible and should be
captured as close to the point of activity as possible.
Reliable - data should reflect stable and consistent data collection processes across
collections points and over time
IPOS - ANSWER The Input-Procession-Output-Storage Cycle
Input - ANSWER Raw data is entered by the user.
Processing - ANSWER Raw data is organized or structured for usefulness.
Output - ANSWER Information is output so user can see results.
Storage - ANSWER Processed information is stored for permanent record.
Computer System - ANSWER A collection of components that work together to
meet the needs of the user; typically categorized as either hardware, software,
networks, or users.
Hardware - ANSWER Physical components of a computer system which include the
system unit and its components and peripheral devices; tangible aspects of the
computer.
Software - ANSWER Computer programs that tell the computer what to do--how to
execute commands and process information
Network - ANSWER A collection of computers and resources connected by various
media so that they can communicate with each other.
User - ANSWER Those who use a computer.
Software Categories - ANSWER Systems Software and Applications Software
Evolution of Users - ANSWER First users were the engineers who built and
programmed computers, then employees who had received specialized training were
users, and now today, anyone and everyone can be a user.
Protocol - ANSWER Rules provided by which networks communicate with each
other.
TCP/IP - ANSWER Transmission Control Protocol/Internet Protocol. Most
commonly used protocol; is required of all computers that communicate over the
Internet.
, Protocol Stack - ANSWER A collection of protocols. TCP/IP is an example.
Components of a Computer - ANSWER CPU, Memory and Storage, Peripheral
Devices
CPU - ANSWER Executes programs' instructions and commands various
components in the computer. Referred to as the "chip".
Memory - ANSWER Stores the programs being executed and the data they are
using.
I/O Subsystem - ANSWER All peripheral devices where long term storage devices
are used.
Bus - ANSWER Permits information to move between each component; electrical
channels that enable communication among the electronic components
System Unit - ANSWER Critical component of all computer based systems; consists
of most of the hardware the computer needs in order to run; comes in a variety of
shapes and sizes.
Internal Components of the System Unit - ANSWER Case, Internal Bays, Buses,
Ports, Hard Drive, Motherboard, CPU, CPU Cooler, Memory Module (RAM), Power
Supply Unit (PSU), Expansion Slots/Cards
Parts of the CPU - ANSWER Control Unit (CU) - retrieves the instructions and the
raw data that is input and coordinates or controls the sending of those instructions
and data to the ALU
Arithmetic Logic Unit (ALU) - does the actual processing of the data; completing
mathematical calculations and logical operations to process the data and converting
the input of the keyboard text entry to output displayed on the screen
System Clock - ANSWER Controls the speed at which instructions are processed.
RAM - ANSWER Stands for Random Access Memory.
It temporarily stores data before it is processed and sent to your screen or printer.
It is volatile (means data or information stored disappears when the computer is
turned off or loses power).
You can choose the amount of RAM your computer has.
Types of RAM - ANSWER Dynamic RAM (DRAM) - typically called main memory
Static RAM (SRAM) - cache memory and registers
