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66 Cards in this Set
- Front
- Back
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hardware
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physical components of a computer
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software
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a collective term for programs
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firmware
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combination of software and hardware, devices that have programs in them
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bit-mapped
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It is a type of memory organization or image file format used to store digital images
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pixels
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the smallest controllable element of a picture represented on the screen
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RGB
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Red, Green, Blue
All colors of the computer are combinations of RGB |
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motherboard
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known as the mainboard, system board, planar board or logic board[1]) is a printed circuit board (PCB) found in all modern computers which holds many of the crucial components of the system, such as the central processing unit (CPU) and memory, and provides connectors for other peripherals.
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microprocessor
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It is a multipurpose, programmable device that accepts digital data as input, processes it according to instructions stored in its memory, and provides results as output
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RAM memory
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Random Access Memory
the computer can refer to the memory location in any order, you can change/edit project and it will save the immediate changes but will lose it when the computer is turned off |
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ROM memory
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Read-Only Memory
memory that is not easily changed, tells the computer how to turn on and turn off. |
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SSD memory
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Solid-State memory, Hard disk
this is where you save a doc for later. |
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ARM
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Advanced Risc Machine; a standard computer that is often embedded in other kinds of chips or is a component of a consumer device; microchip
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input device
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a computer device; transfers an action from the physical world to the computer world
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output device
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printer
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programs
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the instructions computers perform to implement applications
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software stack
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a series of layers of programs that implement user applications
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virtual
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"not real, but as if"
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sourced content
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content produced for commercial purposes or to fulfill an information dissemination obligation
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social content
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information created by visitors
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boot/reboot
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start/restart a computer
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algorithm
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a precise, systematic method for producing a specified result; programs are algorithms
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abstract
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to remove the basic concept, idea, or process from a situation
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synchronous communication
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requires that both the sender and the receiver are active at the same time
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asynchronous communication
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the sending and receiving occur at different times
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broadcast communication
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involves a single sender and many receivers
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multicast
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many receivers but the intended recipients are not the whole population
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point-to-point communication
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one specific sender and receiver
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client/server interaction
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interactions over the internet
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web server
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server in the client server interaction
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IP address
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(internet protocol) a series of four numbers (one byte each) separated by dots
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domain
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a related group of networked computers
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DNS
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Domain Name System- translates the hierarchical human-readable names into the four-number IP addresses
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authoritative name server
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it keeps the complete list of the IP addresses and corresponding domain names
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root name servers
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know the IP addresses for their domain (.com .edu)
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TLD
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top-level domain
.com .org .net .mil .gov |
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TCP/IP
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(transmission control protocol/internet protocol)
the sending process of information from one computer to another (postcard analogy) |
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IP packet
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like the postcard in the TCP/IP
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payload
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data in the IP packet
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WAN
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Wide Area Network -networks designed to send information between two locations widely separated and not directly connected; info takes hops
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LAN
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Local Area Network- when computers are close enough to be linked by a single cable or pair of wires -uses Ethernet Network
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Web Servers
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Computer programmed to send files to browsers running on other computers connected to the internet
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World Wide Web
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www webservers and files
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URL
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Universal Resource Locator- name of a file on a web server
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http
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hypertext transfer protocol tells the computer how to handle the file
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server computer's name
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server's IP address
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Page's pathname
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the sequence following the IP address
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XHTML
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extensible hypertext markup language
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tags
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words enclosed in angle brackets
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singleton tag
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the closing angle bracket is replaced by />
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4 structural tags
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html, title, head, body,
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open source browser
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the program code is readily available and any programmer can contribute to it
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white space
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html does not convert white space unless specifically instructed; exception: <pre> </pre>
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escape symbol
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used to display irregular characters, ampersand
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hyperlinks
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link on a webpage to a different file
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anchor text
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the text in the current document "the link"
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hyperlink reference
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the address of the other webpage file
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anchor tag
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<a href="file_pathname"> alt=Web Page </a>
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absolute pathnames
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referencing a correctly written, separate URL
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relative pathnames
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pages that are stored in the same pathname/ same file hierarchy
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image tag
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specifies a file that contains an image <img src = "filename" alt = "description" />
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attributes
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an additional specification inside a tag
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element
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the string of symbols that indicates the type of tag
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value
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the specification of the attribute
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properties
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characteristics of page components
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CSS
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cascading style sheets- styling system for documents
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class
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a family of styling specifications with a common name
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