Internet
is a worldwide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals
Hot Spot
is a wireless network that provides internet connections to mobile computers and devices
Internet Service provider (ISP)
is a business that provides individuals and organizations access to the internet
Bandwith
represents the rate of data transfer over a network
IP address
is a sequence of numbers that uniquely identifies each computer or device connected to the internet
Domain name
is a text based name that corresponds to the IP address
DNS sever
translates the domain name into its associated IP address
Web or Worldwide web
Consists of a worldwide collection of electronic documents (Webpages)
Website
is a collection of webpages and associated items
Web server
is a computer that delivers requested webpages to your computer
Browser
is an application the enables users with an internet connection to access and view webpages
URL
A unique web address
Web app
is an application Stored on a web server that you access through a browser
Search Engine
is a software that finds websites, webpages, images, videos, news, maps, and other information related to a specific topic
Web publishing
is the creation and maintenance of websites using Plan,design,create,host,maintain
Multimedia
use of a combination of 2 or more content forms
Graphic
is a visual representation of non text information
Animation
is the appearance of motion created by displaying a series of still images in sequence
FTP
is an internet standard that permits file uploading and downloading to and from other computers on the internet
Netiquette
is the code of acceptable internet behavior
Digital security risk
is any event or action that could damage technology
Computer crime
any illegal act involving the use of a computer
Cybercrime
is an online or internet based illegal
Malware
Consists of programs that act without the users knowledge and deliberately alter operations of a device
Botnet
is a group of compromised computers or mobile devices connected to a network
Zombie
compromised computer
DoS attack
disrupts computer access to the internet
Back door
is a program that allows users to bypass security controls
Spoofing
is a technique used to make an intruder look legitimate
Firewall
is hardware and/or software that protects a networks resources from intrusion
Biometric device
authenticates someones identity using a personal characteristic along with a password (fingerprint reader)
Two-Step verification
uses 2 methods to verify
Digital forensics
is the discovery, collection, and analysis of electronic evidence
License agreement
is the right to use software
Information theft
occurs when someone steals personal or confidential information
Encryption
is the process of converting readable data into encoded characters
Secure site
a site that uses encryption to secure data
Digital certificate
a notice that guarantees that a user ir website is legit
Backup
is a duplicate of a file that can used if the original is lost or damaged
Incremental back up
only backup files that have changed since the last full backup or incremental backup
Intellectual property
refers to unique and original works such ideas, inventions, art, writings, processes, company and product names and logos
DRM
Strategy that tries to prevent illegal distributions of media
Cookie
is a small text file that a web server stores on your computer (used a lot by companies to get information about you)
phishing
is a scam where someone sends you an official looking email that attempts to get you financial information
Spyware
is a program placed on a users device without the users knowledge that collects information about the user
Adware
is a program that displays an online ad in a banner or a pop up
Content filtering
Restricting access to certain material
Storage medium
is the physical material on which a computer stores information
Cloud storage
Stores data on the internet
Storage device
is the hardware that records and retrieves items and form storage media
Capacity
number of bytes a storage medium can hold
Access time
measures the time it takes a storage device to locate an item on a storage medium
Hard disk
contains on or more inflexible, circular platters that use magnetic particles to store data
Formatting
is the process of dividing the disk into tracks and sectors
SSD
is a flash memory storage device that contains its own processor to manage its storage
External hard disk
is a separate freestanding storage device that connects with a usb port
RAID
is two or more integrated hard disks or SSDs
Memory card
Removable flash memory storage device
ROM
Read only memory
RW
Re-writable
R
write once
Network attached storage
is a network server with the purpose of providing storage to computers and devices attached to the network
Storage area network
is a high speed network used to provide storage to servers
Tape
is a magnetically coated ribbon of plastic capable of storing large amounts of data
Smart card
stores data on an integrated circuit embedded in the card
RFID Tags
consist of an antenna and a memory chip that contains data to be transmitted via radio waves
Network
is 2 or more computers and devices connected via communications devices and transmission media
LAN
is a network in a limited geographical area
WLAN
is a LAN without wires
MAN
connects LANs in metropolitan areas
WAN
is a network that covers a large geographical area
PAN
covers an individuals workspace
Network architecture
configuration of devices on a network
Ethernet
is a network standard specifying that no central computer or device on the network controls when data are transferred
Token ring
Standard specifies that computers and devices on the network share on pass a special token
TCP/IP
is a network protocol that defines how data are routed from one end of a network to another
RFID
defines how radio signals are used to communicate with a tag placed in, or attached to, an object, animal, or person
NFC
the use of close range radio between 2 objects
ADSL
is a type of DSL that supports faster downstream rates
Communications device
is hardware capable of transmitting data, instructions, and information
Broadband modem
sends and receives data and information to and from a digital line
Wireless modem
uses a mobile phone providers network to connect to the internet
Wireless access point
is a device that allows computers and devices to transfer data among themselves or to a wired network
Router
connects multiple computers or other routers and transmits data to correct destinations on a network
NIC
Enables a computer or device that does not have built in networking to access a network
Hub or Switch
is a device that provides a central point for cables in a network
Home network
many home users connect to multiple computers and devices using
Broadband
media transmit multiple signals simultaneously
Latency
is the time it takes a signal to travel from one location to another on a network
Microwaves
are radio waves that provide high speed signal transmission
Communications satellite
Receives microwave signals from an earth based station amplifies them and broadcasts over a wide area to a number of earth based stations
Data
unprocessed items
information
processed data
Character
is one byte
Field
is a combination of one or more related characters
Record
is a group of related fields
Data file
is a collection of related records
File maintenance
refers to the procedures that keep data current
Validation
compares data with a set of rules or values to find out if the data meet certain criteria
Data model
defines how users view the organization of the data
DBMS
provides several tools that support data retrieval and maintenance
Data dictionary
contains data about each table in a database, and their fields
Query
is a request for specific data from the database
Query language
consists of simple statements that allow users to specify data to display, print, store, update, and delete
SQL
is a popular query language that allows users to manage, update, and retrieve data
QBE
a feature that has a graphical user interface to assist users with retrieving data
Form
is a window that provides areas for entering or modifying data
Information system
is a collection of hardware, software, data, people, and procedures that work together to produce information
System development
is a set of activities used to build an information system
Systems analyst
is responsible for designing and developing an information system
Project management
is the process of planning, scheduling, and controlling activities
Feasibility
is a measure of how suitable the development of a system will be to the organization
Planning phase
begins when the steering committee receives a project request
Analysis phase
Preliminary investigation and detailed analysis
System proposal
assesses the feasibility of each proposed solution
Prototype
is a working model of the proposed system’s essential functionality
Implementation phase
is to construct the new or modified system and then deliver it to users
Programing language
is a set of words, abbreviations, and symbols that enable a software developer to communicate instructions to a computer or mobile device
Procedural language
English like words that tell the computer what to accomplish
OOP
allows system developers to implement objects in a program
Java
is an object oriented programming language
Macro
is a series of statements that instructs a program or app how to complete a task
HTML
is a special formatting language that software developers use to format documents for display on the web
(ERP) Enterprise resource planning
integrates MRP II with information flow across an organization
Transaction Processing System
is an information system that captures and processes data from day to day business activities
Management information systems
Generates accurate, timely, and organized information
Decision support system
Helps users analyze information and make decisions
Expert system
is an information system that captures and stores knowledge of human experts and imitates human decision making
IT Consultant
provides technology services to his or her clients