The project glossary is a collection of vocabularies or phrases (the terms) captured from various models, reports and any other artifacts in the software project. Each term are defined with its meaning specific to the project domain. … understand the design artifacts. provide description to key terms and phrases.
This is the Extended Raspberry Pi Glossary of Terms. It consists of almost all the terms that one could find in Arduino or Raspberry Pi Projects. If you want to go to the Standard Glossary Click the Link: Standard Dictionary
| Headings | Definations |
|---|---|
| 10Base-T | Twisted Pair Ethernet |
| 10Base-T: Twisted Pair Ethernet | twisted pair cable cord that gives a way to connect the Ethernet and the Local Area Networks and handle 10 megabits |
| 802.11n | type of high speed internet by the IEEE |
| A command with a "freq" suffix is probably dealing with | settings control for performance of the RP's SoC |
| a loop in programing is what? | a sequence of comamnds that are repeated continously until a condition is reached |
| A personal computer has a BIOS. What is BIOS? | Basic Input-Output System |
| A trigger-block in scratch does what? | tells the sprite "when" to do something (there are only 4) |
| A/mA | Ampere/Milliampere, the base unit of electrical current. Milliamps 1/1000 of an ampere, measures the Current. |
| Abstraction | Representing a concept by hiding unnecessary details, revealing only the details that are important |
| ACT (activity) light | tells you if the SD is on and working |
| Active Sensor | Sends a signal and then detects changes in the environment based on the data returned, usually requires an external power source |
| Ad-Hoc | formed arranged or done for a particular use only |
| Algorithm | A series of precise instructions to solve a problem |
| An add-on while using Rasbmc is another name for | the music input player, kind alike You tube |
| Analogue signal | A continuous variable signal |
| analogue/analog signal | using informaiton represting a continous variable |
| API | Application programming interface; a set of functions used when building Software. |
| Arduino | a platform based on hardware and software that reads inputs (a finger on a button, a light on a sensor) and activates an output (a motor, a light etc.) |
| Arduino | a platform based on hardware and software that reads inputs (a finger on a button, a light on sensor) and activates an output (a motor, a light etc.) |
| ARM | a central processing unit that is desgined for small devices |
| Arm | A central processing unit that is designed for small devices |
| Armv6 | The instruction set architecture used on the first Raspberry Pi (Pi 1) and the Pi Zero range. |
| Armv7 | The instruction set architecture used on the Raspberry Pi 2 range. |
| Armv8 | The instruction set architecture used on the Raspberry Pi 3 range; very similar to Armv7 in 32-bit mode. |
| Assets | Items needed to create a project, such as images or 3D-printed parts |
| Auto-MDI | feature of the RJ45 that prevents computers that are connecting networks to talk over each other |
| BalenaEtcher | The tool we recommend for programming SD cards ready for use on our devices; available for Linux, Windows, and Mac. |
| Bare metal | Programming the Raspberry Pi without using an operating system. |
| Bash | the most popular shell choice used in most Linux distrobutions |
| Bash | the most popular shell choice used in most Linux distrobutions |
| BCM2711 | The SoC used on the Raspberry Pi 4B |
| BCM2835 | the RP's SoC multimedia processor |
| BCM2835 | The RP's SoC multimedia processor, The SoC used on the Raspberry Pi 1, Compute Module 1, and Raspberry Pi Zero range |
| BCM2836 | The SoC used on the original Raspberry Pi 2 |
| BCM2837 | The SoC used on the Raspberry Pi 3, Compute Module 3, and Raspberry Pi 2 version 1.2 |
| bezel/surround | display related setting the distrots a display with RP is connected to a comptuer |
| BLE/BTLE | Bluetooth Low Energy, a low-power version of the Bluetooth wireless communications protocol. |
| Bonding agent | Adhesive for sticking components together (e.g. glue) |
| Boolean logic | -a form of algebra that all values are either True or False |
| Boosting | something done to the voltage that means boosting the signal within the chip |
| boot device | any hardware that can read or contains files requried for the computer to start |
| Bootloader | Software responsible for leading the Linux kernel. The most common is GRUB. |
| Bootloader | Software responsible for leading the Linux kernel. The most common is GRUB. |
| Breadboard | A reusable circuit board for prototyping electronic circuits |
| bricking | the process if breaking your RP or other device |
| BT | Bluetooth, a short-range, low-bandwidth, wireless communication protocol often used for mobile devices. |
| bus | a communication system that transfers info from between computers or inside between compoents of a computer |
| Bus | a communication system that transfers info from between computers or inside between compoents of a computer includes all hardware like fibers, cables, communication protocols |
| By using the cloud based system, it allows RP to | work on more complicated docuemnets and tasks without solwing down becuase of memory capasity |
| cache | list of all software avaliabel to install via apt |
| CAD | Computer-aided design; allows precise 2D and 3D drawings and models of real-world objects to be designed on a computer |
| capacious | having a lot of room inside |
| character encoding | type of coding used by a languge |
| Chromium is another name for | Google Chrom |
| Circuit | A path along which current flows |
| CISC | -Complex instruction set computing |
| Closed source | -not open operating systems that dont let the user see insdide, EX |
| CODEC | Coder/Decoder, hardware or software blocks that encode and/or decode video or audio data. |
| commands | set of tools that all Linux distrobutions share that can be used on the terminal command line to make it do stuff |
| Communication protocol | e.g, Internet Protocal (IP) a set a rules to send and recieve internet messages |
| Computational thinking | A set of mental skills that help to define a problem in such a way that a computer can solve it |
| Compute Module | A Pi variant aimed at commercial customers; uses a different form factor, facilitating use inside other products. |
| Computer network/Data network | group of computer systems that are linked through communication channels to facilitate resource sharing |
| Computer network/Data network | group of computer systems that are linked through communication channels to facilitate resource sharing |
| Computer program | collection of instructions to do a certain task |
| Computer program | collection of instructions to do a certain task usually executes it in a CPU or Central Processing Unit |
| configuration | how a system is set up |
| Console | a version of the terminal that is always avaliable, and the first thing you see on pi |
| Console | a version of the terminal that is always avaliable, and the first thing you see on pi |
| console (system, computer, serial) | physical device of comptuer and screen for text entry and display |
| Constructs | The basic elements of a computer program (e.g. if/else statements) |
| Control flow | The order in which a computer executes instructions |
| crossover cable | a cable that connects two network client togehter so the computers dont try to talk over each other |
| CSI | Camera Serial Interface, a hardware interface for connecting cameras to SoCs. |
| dd | a command line utitlity that is used to convert and copy fiels |
| Debuging | the process of going through a program's code to locate and fix a problem or mistake. |
| Decomposition | Breaking a problem down into smaller, more manageable parts |
| Dependencies | packages that rely on other packages to operate |
| Desktop environment | software to make the GUI look pretty. GNOME and KDE are popular desktop envioemnets |
| Desktop environment | software to make the GUI look pretty. GNOME and KDE are popular desktop envioemnets |
| Desktop environment | software to make the GUI look pretty. GNOME and KDE are popular desktop envioemnets |
| Device Tree (DT) | A data structure for defining hardware. |
| Device Tree blob (DTB) | A binary file containing a Device Tree; the result of compiling DTS files. |
| Device Tree source (DTS) | A human-readable source file to be compiled into a DTB. |
| DHCP | Dynamic Host Configuration Protocol, a network management protocol which dynamically assigns an IP address and other network configuration parameters to each device on a network. |
| DHCP Dynamic Host Configuration Protocol | a system on the network that tells the Pi how to connect |
| Digital making | Creative projects requiring technical skill and understanding |
| Digital photos are known as | bitmapped images |
| Digital signal | A signal that is either on or off |
| Directoy | the linux term for what Windows calls folders where fiels are stored |
| Directoy | the linux term for what Windows calls folders where fiels are stored |
| distributions | versions of Linux operating system |
| Distrobution | A particular version of Linux. Pidora, Arch and Raspbian are distrobutions |
| DLNA | Digital Living Network Alliance |
| DMT | Display Monitor Timings |
| Domain Name Sytem (DNS) server | converting names of networks into numbers reqired to access the remote system |
| DPI | Parallel Display Interface, an up to 24-bit parallel RGB interface via the Raspberry Pi's GPIO pins. |
| DSI | Display Serial Interface, a hardware interface for connecting LCD panels. |
| Dt-Blob.bin | A binary file containing initial GPIO configuration that is read by the firmware at boot time; despite the name, this is not Device Tree blob (although it is compiled by the Device Tree tools). |
| DVI | Digital Visual Interface, a video interface for connecting a source device to a monitor or display; electrically compatible with HDMI, so a simple adapter can convert from one to the other (excluding audio, which DVI does not support). |
| eke | make somethng last longer by onsuming it frugally |
| embedded | to put something such as a graphic into a program or on the internet |
| Embedded or Nested | one piece of programming is contained within another. |
| emergency kernal | second kernel for when the default kernel is not working |
| encoding type | a certain repertoire of characters by some kind of an encoding system. |
| ESSID | the SSID (Service Set Identifier) number of the network to which the adapter is connected. Reads a "off/any" if none |
| Ethernet | standard way to connect computers on a network with a wire connection interface for connecting multiple devices likes computers, routers, and switches |
| Ethernet: | standard way to connect computers on a network with a wire connection interface for connecting multiple devices likes computers, routers, and switches |
| Ethos | the characteristis sprit of a culture or era |
| -EX: A[[ | u PS X and WIndows |
| NFS | Example network attacted devices include |
| Executable | a file that can be run as a program. Linux files must be marked exeutlable in order to run |
| Executable | a file that can be run as a program. Linux files must be marked exeutlable in order to run |
| EXT2/3/4 | THe EXTended file system, the most common file system used in Linux |
| EXT2/3/4 | THe EXTended file system, the most common file system used in Linux |
| FAQ | Frequently Asked Questions! |
| File system | The wat a hard drive or other storage device is formatted so that its ready for storage |
| file system | content of the SD card |
| File system | The wat a hard drive or other storage device is formatted so that its ready for storage |
| firmware | a sfotware bundle that lets the system address the USB wireless adapter |
| Firmware | A Software bundle that lets the system address the USB wireless adapter |
| flashing | installing the software manually |
| Flashing | installing an operating system |
| Flat Cable Connectors | a type of ribbon cable that connects things inside a computer but can be used externally, usually connects disk drives to disk drive controllers |
| Flat Cable Connectors | a type of ribbon cable that connects things inside a computer but can be used externally, usually connects disk drives to disk drive controllers |
| fork | a version of a distrobution adapted by the community for a particualr task |
| Fragment | the value of the maximum fragment size, used on busy networks to split packets up |
| GHz (unit) | Gigahertz: 1 billion cycles per second |
| GID | Group ID |
| GNOME | one of the most common Linux desktop envioemnt |
| GNOME | one of the most common Linux desktop envioemnt |
| GNU | a free software project which provides many of the tools used in Linux distributions |
| GNU | A free software project which provides many of the tools used in Linux distributions |
| GPIO | General Purpose Input/Output, the programmable pins on the Raspberry Pi. |
| GPU | Graphical Processing Unit, a hardware device for handling graphical (and related) tasks at high speed; on the Raspberry Pi range up to the Pi 3B+, this is called the VideoCore4 (VC4), and is built into the SoC. On the Pi 4, a newer and faster version called VideoCore6 (VC6) is used. |
| group | allows memebrs to access tools in group |
| GRUB | the GRand Unified Bootloader, created by GNU and used to load the Linux kernel |
| GRUB | the GRand Unified Bootloader, created by GNU and used to load the Linux kernel |
| GUI | A grpahical user interface, in whcih teh user operates the computer via a mouse or touch |
| Hard Disc | storage device for information for programs that works by magnetics |
| Hard Disc: | storage device for information for programs that works by magnetics |
| Hardware | physical parts of a computer system |
| Hardware | physical parts of a computer system |
| hash | file with .shal ending used to verify that a download didnt corrupt |
| HAT | Hardware Attached on Top, a specification for designing devices to attach to the Raspberry Pi. |
| HDCP | High-bandwidth Digital Content Protection, an optional encryption mechanism used for HDMI or DVI transmission. |
| HDMI | interface for transferring uncompressed video data and compressed or uncompressed audio data from a compliant source to a comparable monitor |
| HDMI | High-Definition Multimedia Interface, a standard interface for transmitting uncompressed video and compressed or uncompressed audio data from a source device to a display device. |
| hostname | is teh name on it usees to identify itsefl on the network |
| How are kinds of languages differciated on a comand line? | en = international organization |
| How do you return the RP settings to normal? | either delete the entire config.txt file or delete the lines you chagned and restart |
| How much storage does a desktop hard drive have? | 4000GB (4TB) TB=terabyte |
| HTPC | Home Theather for Personal Computer |
| HVS | Hardware Video Scaler, a hardware block in the VC4 or VC6 GPU on all Raspberry Pi models that is used for manipulating and displaying bitmaps. |
| I/O system | Input/Output system |
| I2C/I2C/IIC | Inter-Integrated Circuit (pronounced I-squared-C), an electrical protocol used for attaching lower-speed peripheral ICs to processors and microcontrollers in short-distance, intra-board communication. |
| I2S | Inter-Integrated Circuit Sound, an electrical serial bus interface standard used for connecting digital audio devices together. |
| IDLE | Integrated Devlopment Enviroment |
| IDLE opens up in "shell mode" whcih means | anything you type in teh initial window will be immediately executed. To get out of shell mode, just make a new file |
| IEEE | computer society that puts out conferences and information and updates and stands for Institute for Electrical and Electronic Engineers |
| IEEE | computer society that puts out conferences and information and updates and stands for Institute for Electrical and Electronic Engineers |
| If you are using RP as a productivity tool, then you shoul dput more memory in the _____. | CPU instead of the GUI |
| image file | a means of storing data in a single file |
| In order for other office suite packages to support the LibreOffice format and for other benefits, the Libreoffice uses the _____ format. | ODF |
| In order to have a file shared (as in used simultaneously by multi directoires) you should | link the file with a command in the terminal |
| input and raw_input as commands are for ? | the user inserting a value that resutls in something. For example, if you make a guess on a battleship game |
| Interface | a shared connection between two things such a hardware device and a computer or a human and a computer |
| Interface | a shared connection between two things such a hardware device and a computer or a human and a computer |
| Intergers | are whole numbers only, so you cannot do a division command with a simple / sign |
| IP address | address for the reciveing and communicating of internet data. For example if you get something of the internet you need an IP address to be delivered to. Also, it is not a continuous connection. It is a one time thing. |
| ISA | Instruction Set architecture |
| ISA | Instruction Set architecture |
| ISP | Imaging System Pipeline, a set of hardware (and sometimes software) stages that processes images from a camera into a high-quality result; the Raspberry Pi has a built-in hardware ISP that processes images captured from a camera attached to the CSI port. |
| KDE | Antoehr popular Linux desktop envieomtn |
| KDE | Antoehr popular Linux desktop envieomtn |
| kernel | brain or core that provides basic services to the operating system |
| Kernel | brain or core that provides basic services to the operating system |
| kernel ring buffer | portion of memeory used by Linux kernel to store its human readable output |
| LAN | Local Area Network, an Ethernet- or wireless-based communication network in a localised area, for example a house or office. |
| LAN (Local Area Network) | a computer network limited to a small area such a house |
| Python | Leafpad is the GUI for? |
| LED | Light Admitting Diode |
| LED | Light-Emitting Diode, a semiconductor device that produces light using electricity. |
| Libre Office is a metapackage, which means... | it comes bundled with many additional packages |
| Linux | properly the kernel used by GNU/Linux. Popularly an open source operating system |
| Linux | The main operating system used on the Raspberry Pi; the particular customised distribution for the Raspberry Pi range is called Raspbian; third parties have also produced their own distributions. |
| Live CD | A linux distrobution provided as a CD or DVD which dosent require installation |
| Live CD | A linux distrobution provided as a CD or DVD which dosent require installation |
| locals | information abotu your location |
| loopback | interface that allos programs on teh Pi to talk to each other |
| LXDE | Lightweight X11 Desktop Enviroment |
| mA | milliamps |
| Mbps | megabits per second |
| MBps | megabytes per second |
| MBps | megabytes per second, Measure of computer processor storage, Is equal to 2^20 bytes |
| Mbps | megabits per second, Measure of data transfer speed, One megabit is 1 million bits |
| MHz | megahertz |
| Micro SD card | removable memory card for storing information |
| Micro SD card | removable memory card for storing information |
| Micro-controller | a small computer that has a processor core, memory, and programmable input/output peripherals |
| Micro-controller | a small computer that has a processor core, memory, and programmable input/output peripherals |
| Midor | teh default brower for the RP |
| moc | music on console |
| Mode | type setting of wirless newtwork to chose from |
| most RP can reach overclock speeds of 800MHz but some can reach what? | 1000 MHz |
| mounting | letting an operating system know about an external UMS |
| MQTT - | MQTT stands for MQ Telemetry Transport, a lightweight and simple machine-to-machine protocol often used for IoT devices; see the MQTT website. |
| MSD | Mass Storage Device (amongst other things), such as an SD card or hard disk drive. |
| NAS | network attached storage devices for sharing and streaming video music and pictures |
| negotiation | a device using its full power which is not a regular function of power sources |
| netmask | number that conntrols the size of the network |
| NIC | network interface controller/card |
| NIC: network interface controller/card | A computer hardware component that connects a computer to a computer network |
| NOOBS | way of setting up RP for the first time |
| NOOBS - New Out of Box software, easy OS system image installation for the Raspberry Pi range; note | NOOBS is no longer developed by the Raspberry Pi team, see PINN instead. |
| Openbox | desktop envioemnt used by LXDE GUI |
| Operator | tells the computer what to do with inputs values and variables. (See inputs values and variables.) |
| OTP | One-Time Programmable, a type of memory that can only be programmed once, and retains the programmed data after power off; used for serial numbers etc. |
| Output | Data sent out by a program (e.g. sound from a speaker) |
| overclocking | increasing a compoents clock speed to mkae it run faster than it was desgined to |
| Overclocking affects diffrent RP uniquely beucase of | natural variations in teh chip introduced during manufacturing |
| Overlay | A boot-time or run-time patch to a Device Tree allowing a degree of configuration by the user |
| overscan | when RP is connect to a computer or TV and teh display screen is messed up |
| overscan | when teh pciture area is slightly smaller than the transmitted picture |
| overscan_right, frambuffer_width, and sdtv_mode are examples of what? | commands used in the config.txt file to modify the display |
| Package | a collection of files required to rrun an applicaiton, typically handed by teh package manager |
| package | bundles of software |
| package | a piece of software ot a collection of diffrent pieces of software desgined ot work together |
| Package | a collection of files required to rrun an applicaiton, typically handed by teh package manager |
| Package manager | a oool for keeping track of an intstalling new software |
| package manager | a tool for manageing packaged software |
| Package manager | a oool for keeping track of an intstalling new software |
| parlance | a particular way of speking or using words |
| Parrellism | In some computer languages it is possible to make the computer perform more than one task at the same time. |
| parsed | to have been analysed |
| Parsed | to have been analysed |
| partition | a section of a hard drive that is ready to have a file system applied to it for storage |
| Partition | a section of a hard drive that is ready to have a file system applied to it for storage |
| Passive sensor | Detects changes in the environment without actively sending out a signal (e.g. a PIR sensor) |
| PCB | printed Circuit Board (The RP itslef) |
| PCB | printed circuit board; a board connecting electronic components |
| peripheral bus | a bus for things like printers and hard drives |
| Peripheral bus | a bus for things like printers and hard drives |
| pi and root | user acccounts that are default on Raspbian (pi= normal root = superuser) |
| piping | using the less screen command |
| pixel units | Example: 1920 x 1080 means 1920 pixles wide by 1920 tall |
| porting | conferting software to make it suitable for diffrent processors |
| Porting | conferting software to make it suitable for diffrent processors -EX x86 software to ARMv6 processor |
| Program | is a sequence of instructions (or algorithm) written in a language or code that a computer can understand and put into action. A computer will do exactly what it is told so a program must be accurate. |
| Programming language | name given to one of the many ways in which a computer can be given instructions in a program. Examples include C++, JavaScript, Logo, PHP, Python and Ruby. |
| Programming paradigm | A style or way of thinking about programming (e.g. object-oriented) |
| Protoboard | A board which allows you to add components to a prototype circuit by soldering or cutting strips |
| PSK (pre shared key) | another name for a wifi network's password |
| PWR (power) light | light on teh RP that tells if the power is one |
| RAM | random aces memory |
| RAMFA | Random Access Memory File System |
| Raspberry Pi Desktop | A version of the LXDE desktop environment, specifically tailored to the Raspberry Pi (used to be called PIXEL). |
| Raspbian | customised variant of the Debian Linux distrobution which is one of the most prominate and popular distrobutions of Linux. (named after a guy nmaed Ian and his gf Deb) |
| Raspi-Config | A command line tool for configuring Raspbian's operating system features; see our official documentation. |
| raspivid, raspistill, raspiyuv, raspividyuv | a set of applications to run the Raspberry Pi Camera Module in various modes; see our official documentation. |
| Reducing the amount of memebr can result in a | drop in performance |
| rendering | the processing of an outline image using color and shading to make it appear solid and three-dimensional. |
| Rendering | the processing of an outline image using color and shading to make it appear solid and three-dimensional. |
| respositories | a place where software is stored that can be searched through seraching a cache |
| restrictued user account | provent syou from accidenally doing something to break RP's software and prevents viruses and malware |
| RJ45 cable/port | -Resistered Jack 45 |
| root | the main user accout in linux, equivalent to the Windows administrativor acount. Also called the superuser |
| Root | the main user accout in linux, equivalent to the Windows administrativor acount. Also called the superuser |
| root file system | Linux version of a "drive" |
| RPF - | Raspberry Pi Foundation, the original, Uk-registered educational charity (1129409) that launched the Raspberry Pi. |
| rpi-update | A program you can run on a Raspberry Pi to download the very latest test firmware and Linux kernel; there is no guarantee that the latest version will work correctly, so you should only run rpi-update if recommended by a Raspberry Pi engineer. |
| scanning | process of finding/looking for a wireless network |
| Schematic | A diagram or plan representing a circuit |
| Selection | Choosing which code to execute based on a condition (if/else) |
| Sequencing | Executing lines of code one after another |
| serial | one piece at a time |
| Service Set Identifier (SSID) | basically the netowrk name |
| set-top box processor | a computer that can "talk" to the internet by having a broswer and an IP address |
| Shell | a text based command prompt, loaded in a terminal |
| Shell | a text based command prompt, loaded in a terminal used for human interaction, interpets inputs from a keybaord for example, is NOT on the kernel but uses the kernal |
| Since LibreDraw cannot be used to edit bitmapped images (digital photos), there is another program called what? | Gimp |
| SoC | System on a Chip, an integrated circuit that comprises all components of a computer. |
| source code | the computer language recipe that tells the system what to do |
| SPI | Serial Peripheral Interconnect |
| SPI | Serial Peripheral Interface bus, a synchronous serial communication interface specification used for short distance communication. |
| SSD | Solid State drive |
| SSH | secure Shell |
| SSH | Secure Shell, a cryptographic network protocol for operating network services securely over an unsecured network; see our official documentation or the Wikipedia article on SSH. |
| Subroutine | A named set of instructions in a program (also referred to as a function/procedure) |
| sudo | a program that allows retrcted users to run a command as the root user |
| Sudo | a program that allows retrcted users to run a command as the root user |
| system-on-chip (SoC) | an integrated circuit that integrates all compoents |
| Terminal | a text-based command prompt in whcih the suer interacts with a shell program |
| Terminal | a text-based command prompt in whcih the suer interacts with a shell program |
| Test Mode settings on the RP were used during what? | manufacturing to test the RP operations |
| the config.txt file is located in the | /boot directory |
| The LibreOffice packaage is large and on older RP modles you must | resize the root file system |
| The rasberry pi member is split between what two things? | the CPU (central processesing unit) and teh GUI (graphical user interface) |
| The RP's memory is small but extremely | fast |
| The Scratch language is multithreaded and object-oriented, which means? | each object in teh program, inclduding sprites, can have its own code attached and that section of code runs simultaneoulsy and independently of other blocks. |
| The SoC on the has two option s for audio output. What are tehy? | 3.5 mm and the HDMI port |
| the SoC on the RP is great beucase it does what with data? | stores it temporily on teh slower main memory and the processor itself to improve performance |
| TLA | Three-letter abbreviation, almost the entire reason for this glossary. |
| TLS | Transport Layer Security, a cryptographic protocol used to supply security over a computer network, often used to secure other protocols such as MQTT. |
| To run a file from IDLE or text editor (which should be saved under .py and not .txt) chosen what option? | Run Module form the run menu or press F5 |
| TP1 | postiive (red) via for checking voltage |
| TP1/TP2 | Test points. |
| TP2 | negative (black) via for checking voltage |
| trackball | type of input device that moves the curser with a ball |
| Tx-Power | transmission power of the wireless adapted |
| UART | Universal Asunchronous Reveiver Transmitter |
| UART | Universal Asynchronous Receiver-Transmitter, a protocol for asynchronous serial communication in which the data format and transmission speeds are configurable. |
| UID | User ID |
| UMS | USB Mass Storage Devices |
| Upcycle | Using materials which otherwise would be thrown away in order to make something of value |
| UPnP | Universal Plug and Play |
| USB | Universal Serial Bus |
| USB | Universal Serial Bus, the main Raspberry Pi models have four USB sockets for connecting USB devices, for example mice or keyboards. |
| utitliy software | software desgined to help analyze configue and optimize a computer |
| Variable | A named area in memory where data is stored |
| VC4, VC6 | The VideoCore4 or VideoCore6 GPU used on the Raspberry Pi; contains a large number of hardware blocks that handle graphics, cameras, display, CODECs, etc. |
| VESA | Video Electronics Standards System |
| vias | coppper-clad homes in the RP for testing voltage |
| Viedo from pi is a "source". There are two sources. WHat are they? | local drives for the RP with the blue icon and network devices (Like NFS) that have a red icon |
| virtual directories | for accessing diffrent portions of teh OS or hardware |
| VNC | A graphical desktop sharing system that uses the Remote Frame Buffer protocol (RFB) to remotely control another computer |
| Volt (V) | SI-derived unit for electrical potential difference. |
| voltage test poitns | poitns on teh RP that will let you test the voltage of teh power for troubleshotting |
| Watt | A measure of power often used when specifying power supplies. |
| What are examples of types of audio codexes? | AAC, MP3 |
| What are examples of types of video codexes? | H.264, VP8, MPEG-2 |
| What are some advantages to a RP? | low power, low cost, tiny package, high-resolution |
| What are the three panes of the Scratch interface? | block palette (command list), sprites (objects), and stage (place where the it operates) |
| What does Apache do in the LAMP stack? | provides the web server |
| What does LAMP stand for? | Linux, Apache, MySQL, and PHP |
| What does Linux do in the LAMP stack? | provides the underlying operating system |
| What does MySQL do in the LAMP stack? | provides the database back-end |
| What does PHP do in the LAMP stack? | provides a scripting language |
| What does the RP audio menu do? | allows the option to force the Pi audio output to go via the HDMI path or the other option which is the 3.5 audio jack |
| What i frambuffer_width? | changes the width of the console. for example, if your text was too small, you might strethc it out |
| What is "cloud-based" | software that does not live locally on your computer liek a regualar piece of software but is stored on powerful servers located in data centres throughout the world |
| What is a Codex? | a two part commpression technology that has audio and video parts. |
| what is a headless server? | a system taht runs without a GUI loaded. this is used for really memory intensvie programs like WordPress |
| What is hdmi_drive | one of teh hdmi commands |
| What is LibreImpress? | the same as powerpoint |
| what is metadata? | data that is keep intact when Gimp is saved with a XCF fiel instead of a JPG file |
| What is on the config.txt file exactly? | inputs and outputs and at what speed teh BCM2835 chip runs |
| What is overscan_right? | ignores a certain number of pickles to fix oversight on the left side of the screen |
| What is PNG? | Portable Network Graphics |
| what is sdtv_mode | adjusting the video output to fit the devices of diffrent countires |
| What is the default speek of the core clock for general RP perfromance (commmand code: arm_freq) | 700MHz or 700 Megahertz |
| What is the MySQL? | it is a Relational Database Management System (RDBMS) that basically sorts data recived into tabels and stores data |
| What is the name for Full HD video? | 1080p |
| What is the XBMC? | a free, open source video player program that is now called Kodi |
| when changing settings, most commands have a series of words, an equal sign, and then a number. This number is what? | the option you want out of the options in the setting. For example with the chache memebr, Replace the 1 with a 0 and it lets the CPU use the cache memory |
| When the LAMP is install and the PHP script for the Apache is tested, you can | create your own website whcih will be served byt eh RP |
| WordPress is | one of teh most popular blogging platforms |
| WPA (Wireless Protected Access), WEP (Wired Equivalent Privacy), and WPS (Wi-Fi protected setup) | types of network protection |
| X11 | The X Window system, a package that provides a graphical user interface (GUI) |
| X11 | The X Window system, a package that provides a graphical user interface (GUI) |
| XBMC | Video playing service on the RP |
| Zoho and ThinkFree Online are | popular cloud based office suites simular to goggle drive. Zoho is more for busienss and ThnkFree is almsot exatly like Google drive for FREE |
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