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Terms in this set (75)
a collection of related data that can be stored, sorted, organized, and queried.
specially designed software (such as Microsoft Access) that interacts with the user, other applications, and the database to capture and analyze data
it is the field on a table that has a value unique to that record, helps to keep record distinct
a group of related fields
temporarily displays records that match certain criteria
a way of retrieving a particular subset of data that matches certain criteria
transaction data is accumulated until a certain point is reached and then several transactions are processed at once
the component of a database in which the database stores each category of information
a process to ensure data is organized most efficiently in a database
when data is maintained in only one file
a group of related records, usually organized by a common subject
IT professional who is responsible for designing, constructing, and maintaining databases
the ability of current devices to use earlier standards of Ethernet in addition to the current standard
a specific type of LAN located in the home, used to connect all home's digital devices, such as computers, peripherals, phones, gaming devices, DVRs, and televisions
network in which the nodes are all located within a small geographic area. Example, fast-food restuarant
spans a large physical distance. The Internet is the largest covering the globe
a network used for communications among devices close to one person, such as smartphones, notebooks, and tablets using wireless technologies such as Bluetooth and Wifi.
large network designed to provide access to a specific geographic area, such as an entire city
device connected to a network. Can be a computer, printer or game console, or a router
a computer that request information from a server
a computer that provides resources to other computers on a network
a group of two or more computers (or nodes) that are configured to share information and resources such as printers, files, and databases
a type of network that uses servers to deliver services to computers that are requesting them
a small segment of data that's bundled for sending over transmission media. Each contains the address of the computer or peripheral device to which it's being sent.
a device that enables the computer (or peripheral) to communicate with the network using a common data communication language, or protocol.
the maximum speed at which data can be transmitted between two nodes on a network; usually measured in megabits per second (Mbps).
connecting to a wireless network without the permission of the owner
made up of plastic or glass fibers that transmit data at extremely fast speeds
a set of memory chips, located on the motherboard, which stores data and instructions that cannot be changed or erased; it holds all the instructions the computer needs to start up.
the computers temporary storage space or short term memory. It's located in a set of chips on the system units motherboard, and its capacity is measured in megabytes or gigabytes
a computer program that attaches itself to another computer program and attempts to spread to other computers when files are exchanged
any criminal action perpetrated primarily through the use of a computer
a computer that's controlled by a hacker who uses it to launch attacks on other computer systems
important to create it strong to protect online information from hackers.
ethical hackers, break into systems for non malicious reasons, such as to test system security vulnerabilities or to expose undisclosed weaknesses
an automated attack that's launched from more than one zombie computer at the same time
occurs when malicious is planted on your computer, either by viruses or by your visiting malicious websites, which them alters your browsers ability to find web addresses
lures Internet users to reveal personal information such as credit card numbers, Social Security numbers, or other sensitive information that could lead to identity theft.
take advantage of fie transport methods, such as e-mail or network connections, to spread on their own
text messaging, a technology that lets you send short text messages over cellular networks
lets you send messages that include text, sound, images, and video clips to other phones or e-mail addresses
devices that can display e-text and have supporting tools, like note taking, bookmarks, and integrated dictionaries
uses radio waves to transmit data signals over distances up to approximately 300 feet.
unwanted piggyback program that usually downloads with other software you install from the Internet and that runs in the background of your system
changes its own code or periodically rewrites itself to avoid detection
a virtual communications gateways or paths that allow a computer to organize requests for information, such as webpage downloads or e-mail routing, from other networks or computers
general term used for keywords in a programming language that allow the programmer to direct the flow of the program based on a decision
a scripting language that's customized to work with the elements of a web page and is often used to add interactivity to web pages
a program that understands both the syntax of the programming language and the exact structure of the CPU and its machine language
the process of translating a task into a series of commands that a computer will use to perform that task
translating an algorithm into a programming language
a version of the software that's still under development. Many are available for a limited trial period and are used to help the developers correct any errors before they launch the software on the market
1. Problem and Opportunity Identification
2. Analysis: Explores problem or need in depth 3.Design: generates detailed plan 4. Development: actual programming takes place. 5. Testing and Installation 6. Maintenance and Evaluation: program performance is monitored
A short series of commands that usually automates repetitive tasks.
a set of specific, sequential steps that describe exactly what the computer program must do to complete the required work
the capability to move a completed solution easily from one type of computer to another
an alternative program-development method; instead of developing detailed system documents before they produce the system, developers first create prototype, then generate system documents as they use and remodel the product
an error in a program that occurs when a programmer accidentally writes code that divides by zero, a mathematical error
the SDLC model, each step is dependent on the previous step being completed before it can be started
a device that reads a unique personal characteristics such as a fingerprint or the iris pattern in your eye and converts its pattern to a digital code
the process whereby users prove they have authorization to use a computer network
a private network set up by a business or an organization that's used exclusively by a select group of employees, customers, suppliers, volunteers, or supporters.
A network of networks that's the largest in the world, connecting billions of computers globally
acts like a traffic signal on a network. Receive data packets and send them to their intended nodes on the same network
Wifi, current version is 802.11ac and 802.11n. Standard specifications for electronic data transmission that are adopted throughout the world. Means (or standard) by which nodes on the network communicate.
a set of rules for exchanging communications
a software program or hardware device designed to protect computers from hackers
transfers packets of data between two or more networks
NOS (Network Operating System)
software that handles requests for information, Internet access, and the use of peripherals for the rest of the network node, providing the services necessary for the computers on the network to communicate
a hardware device used to enter, or input, data (text, images, and sounds) and instructions (user responses and commands) into a computer. Some input devices are keyboards and mice.
a device that sends processed data and information out of a computer in the form of text, pictures (graphics), sounds (audio), or video
used in bluetooth, electromagnetic wave of radio frequency
mobile operating system (OS) currently developed by Google
there is no corruption of information between one domain and another
This set is often in folders with...
Chapter 8- Digital Devices
Chapter 11 - Databases and Information Systems
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