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| PDF ( Portable Document Format ) |
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Developed by Abode systems in 1992.
Captures formatting information from a variety of desktop Publishing applications making it possible to send formatted documents. |
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| A novel or improved idea, device, product, etc, or the development thereof. |
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| Programmable machine.Respond to a specific set of Instructions. |
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| A computer that awaits and responds to requests for data. |
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| Groups of computer and servers that are connected to each other. |
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| ISP ( Internet Service Provider ) |
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A company that provides subscribers access to internet.
Example: AT&T, Verizon, T-mobile, Cricket, etc |
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| A computer that requests data stored on a server. |
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| A program that uses HTTP ( Hypertext Transfer Protocol ) to serve the files that form web pages to users |
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| Computer and storage device dedicated in strong files. Any user on a network can store files on the server. |
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| Intercepts all requests to the real server to see if it can fulfill the request itself. |
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| Using a network of remote servers from data centers all over the world. |
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| Hosting services are provided by multiple connected servers that comprise a cloud. |
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| A program that handles all application operations between users and an organization’s back-end business applications or databases. |
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| A single computer in a network reserved for serving the needs of the network. |
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| A computer that manages one or more printers. |
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| A computer system that processes database queries. |
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| A way of representing information using only two options, usually 0’s and 1’s. |
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| Small chunks of information that have been Carefully formed from larger chunks of information. |
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| A set of rules and standards used to communicate between machines. |
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| HTTP ( HyperText Transfer Protocol ) |
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| The protocol used for transmitting web pages over the internet. |
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| HTML ( HyperText Markup Language ) |
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| The language in which the content and formatting of a web page are written. |
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| ASCII ( American Standard Code for Information Interchange) |
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| The university recognized raw text format that any computer can understand. |
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| The principle that all Internet traffic should be treated equally by Internet Service Providers. |
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| A bit is the single unit of information in a computer typically represented as 0 or 1. |
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| To write code, or to write instructions telling the computer what to do. |
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| IETF( Internet Engineering Task Force ) |
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| Develops and promotes voluntary Internet standards and protocols, in particular the standards that comprise the Internet protocol suite. |
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| The Internet Society strives to make the world a better place. |
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| URL ( Uniform Resource Locator ) |
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| An easy-to-remember address for calling a web page (like www.code.org). |
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| DNS, TCP, IP, and Physical Internet |
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| DNS ( Domain Server Name or Domain Name Service ) |
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| The service that translates URLs to IP addresses. |
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| TCP/IP ( Transmission Control Protocol ) |
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| Provides reliable, ordered, and error-checked delivery of stream of packets in the internet. TCP is tightly lightly linked with IP and usually seen as TCP/IP in writing. |
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| A number assigned to any item that is connected to the Internet. |
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| A device that forwards data packets along networks. A router is connected to at least two networks and are located at gateways. |
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| Time it takes for a bit to travel from its sender to its receiver. |
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| The number of bits that are conveyed or processed per unit of time. |
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| Transmission capacity measure by bit rate. |
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| A contraction of “Binary Digit.” A bit is the single unit of information in a computer, typically represented as a 0 or 1. |
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| A sequence of 8 bits processed as a single unit of information. |
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A byte is 8 bits since it was used to refer to groups of 8-bits that a
computer was processing. |
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| A problem solving approach (algorithm) to find a satisfactory solution where finding and optimal or exact solution is impractical or impossible |
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| A data compression algorithm that allows the original data to be perfectly reconstructed from the |
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| To simplify things pulling out specific differences to make one solution work for multiple problems. |
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File Sizes
Bytes, KB, MB, GB ,TB |
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| A single letter or character would use one byte of memory (8 bits), two characters would use two bytes (16 bits). |
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| we represent ‘on’ as ‘1’ and ‘off’ as ‘0’. 8 bits are known as a byte, and it is bytes which are used to pass our information in its basic form - characters. |
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byte - A series of 8 binary bits that digitally represent a single character to the
computer. Example: 00000001 = 1 |
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| The Physical Internet: copper wire, fiber, optic cable, radio waves, etc |
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| A computer that awaits and responds to requests for data. |
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| A computer that requests data stored on a server. |
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| To save space, some information is thrown away |
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| The dimensions by which you can measure how many pixels are on a screen. |
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| For example, a digital image may include metadata that describes the size of the image, number of colors, or resolution. |
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| typically a tiny square or dot which contains a single point of color of a larger image. |
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| Hexadecimal Number System |
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| A number system consisting of 16 distinct symbols - 0-9 and A-F - which can occur in each place value. |
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| light are added together in to reproduce a broad array of colors. |
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| A computation in which rows from a data set are grouped together and used to compute a single value of more significant meaning or measurement. |
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| a data compression method that uses inexact approximations, discarding some data to represent the content. |
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| In spreadsheet software, it is the name of the tool used to create summary tables. |
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| A table that shows the results of aggregations performed data from a larger data set |
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| A single value of either TRUE or FALSE |
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| In programming, an expression that evaluates to TRUE or FALSE |
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| A “hard” problem for a computer is one in which it cannot arrive at a solution in a reasonable amount of time. |
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| A programming language designed by Sun Microsystems that can be integrated into standard HTML pages to add some dynamic features. |
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| Random Substitution Cipher |
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| A program which replicates or mimics key features of a real world event in order to investigate its behavior without the cost, time, or danger of running and experiment in real life. |
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| A command that can be set up to trigger a function when particular type of event occurs on a particular UI element. |
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| A generic term for a type of programming statement (usually an if-statement) that uses a Boolean condition to determine, or select whether or not to run a certain block of statements |
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| A variable whose scope is “global” to the program, it can be used and updated by any part of the code. |
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| A program designed to run blocks of code or functions in response to specified events (e.g. a mouse clock). |
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| A variable with local scope is one that can only be seen, used and updated by code within the same scope. |
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| To link together or join. Typically used when joining together text Strings in programming (e.g. “hello, “+name) |
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| The visual elements of an program through which a user controls or communications the application. |
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| All values in programming language have a “type” - such as a Number, Boolean, String |
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| A placeholder for a piece of information that can change. |
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| A function specified as part of an event listener; it is written by the programmer but called by the system as the result of an event trigger |
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| A data structure in JavaScript used to represent a list. |
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| A value sent back by a function to the place in the code where the function was called from - typically asking for value (e.g. getText(id)) |
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| Every Web Page Has Its Own URL |
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Examples
https://www.techterms.com
https://techterms.com/definition/internet |
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| WiFi ( Wireless Fidelity ) |
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| Wireless networking technology that allows computers and other devices to communicate over a wireless signal. |
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| A wireless technology that enables communication between computer devices. |
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| FiOS ( Fiber Optic Service ) |
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| The use of fiber optic cables to transmit data via pulses of light. |
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| A collection of fourth generation cellular data technologies. |
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| A step-by-step list of instructions that allows you to complete a task |
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