In an attempt to help instructors overcome the trauma of “tech talk,” we’ve put together the Digital Dictionary: a glossary of the more commonly used jargon you will find on our site. Our hope is to help translate these terms into plain English. We have also provided some information on what you need to know to get started using technology here at Rutgers. Still scratching your head? Let us know. The Digital Dictionary is intended to be an ever evolving resource that is added to whenever new tech words come into use and is based on feedback from users in the Rutgers community.
A 16mm projector is a projector that plays film that is 16mm in width. DCS currently offers these projectors in three classrooms:
Milledoler Hall 100, Murray Hall 301, and Ruth Adams Building 001. The cabinets that house the 16mm projectors are unlocked according to the class schedule. Due to their weight and fragility, 16mm projectors are not available for delivery. To request use of one of the three 16mm rooms, please contact Scheduling & Space Management. The Media Center of the Rutgers University Libraries offers access to a collection of 16mm films, while Imaging Services can copy 16mms to DVD.
35mm Slide Projector
(a.k.a. slide projector)
A 35mm slide projector is an opto-mechanical device used to view photographic slides. Slides are mounted in a carousel which drops one slide at a time into a holder, from which the image is projected on to a screen at the front of the room. Instructors may request use of a slide projector as a delivery or semester loan by filling out the
Equipment Request form.
(a.k.a. application software, app)
In computing, an application refers to a program designed to help people perform an activity. The term "app" is often used to refer to application for mobile devices such as smartphones and tablets. The Digital Classroom Podium includes many
applications available for instructors to use in class. For more information about apps for mobile devices, view our blog article on the top mobile apps for instructors. Blu-ray
Blu-ray is an optical disc storage medium designed to replace DVDs. The name "Blu-ray" refers to the blue laser used to read the disc, which allows information to be stored at a greater density than is possible with the longer-wavelength red laser used for DVDs. As a result, Blu-ray discs generally allow for the playback of video and audio with higher definition. As of the fall 2012 semester, all new DCS podiums contain a Blu-ray player. DCS Blu-ray players can also play DVDs. To see if a classroom contains a Blu-ray player,
search for your the room and check the "Technology" tab. If your classroom does not have a Blu-ray player, you may request one by filling out the Equipment Request form.
Cloud computing refers to the use of computing resources which are available in a remote location and accessible over a network (typically the Internet). For example, when using "the cloud," instead of having to install memory or software on a computer or mobile device, users can just connect to the Internet to access files or software. Visit the Classroom Technology Blog for articles on cloud-based web-browsing, and file creation.
Crestron Touchscreen System
(a.k.a. Crestron System)
The Crestron Touchscreen System is one of DCS's in-class technology hubs. All Crestron Touchscreen Systems are equipped with a DVD player and a VGA connection for laptops and mobile devices. Some Crestron Systems also include VCRs, document cameras, hand-held microphones, wireless microphones, HDMI connections, and RCA video inputs. All the equipment is housed in a podium or wheeled cabinet at the front of the room and is connected to a data projector which projects an image on to a screen at the front of the room. Crestron Systems are controlled via a touchscreen. For more information and instructions, visit the
Crestron Touchscreen System page. To see if a classroom contains a Crestron Touchscreen System and for a detailed list of equipment, search for your the room and check the "Technology" tab.
(a.k.a. LCD Projector, Video Projector, Digital Projector, Projector)
A data projector is a projector which transmits an image from a source and projects it on to a screen. The term data is used for a projector that can transmit images from data sources - such as computers - as well as video sources - such as VCRs. In DCS classrooms, data projectors are mounted on the ceiling or at the back of the room and project on to a screen at the front of the room. Every DCS room with a data projector has a VGA connection that can be used to connect laptops or other mobile devices. As of the fall of 2012, all new rooms will also have a HDMI connection. DCS also has portable data projectors available for delivery or semester loan which can be requested by filling out an
Equipment Request form. To see what your classroom is equipped with, search for your room. Data projectors are listed under the "Technology" tab. HDMI inputs are listed as "Additional Items" on the "Classroom Features" tab. If your classroom does not have a data projector, you may request one by filling out the Equipment Request form.
Digital Classroom Flip-Top
(a.k.a. DCF, Flip, Flip-Top)
The Digital Classroom Flip-Top is a table-based version of the Digital Classroom Podium, for use in seminar and small classrooms. DCFs include a Mac Mini computer and VGA and HDMI connections for projecting from laptops and mobile devices. DCFs are connected to wall-mounted monitors that can be used to view presentation material. DCFs also have wireless display technology that enables instructors and students to wirelessly send images from their laptops, phones, or tablets to the wall monitor. For more information and instructions, visit our
DCF page. To see if a classroom contains a Digital Classroom Flip-Top, search for your the room and check the "Classroom Features" tab. For a detailed list of equipment available in the classroom, check the "Technology" tab.
Digital Classroom Podium
(a.k.a. DCP, "the New Podium")
The Digital Classroom Podium is DCS's new, standard in-class system. All DCPs include a Mac Mini computer, Blu-ray player, high-definition document camera, and VGA and HDMI connections for projecting from laptops and mobile devices. Larger classrooms also include microphones. The podiums are operated using a touchscreen which also doubles as a monitor for the computer. DCPs are connected to high-definition projectors or monitors. For more information and instructions, visit our
DCP page. To see if a classroom contains a Digital Classroom Podium, search for your the room and check the "Classroom Features" tab. For a detailed list of equipment available in the classroom, check the "Technology" tab.
(a.k.a. doc camera, visualizer)
A document camera is a real-time image capture device for displaying an object to a large audience. Document cameras are housed in DCS podiums and connected to in-room data projectors so that instructors can project objects such as documents, books, and transparencies. DCS document cameras have two main modes. The first uses the overhead lights and is ideal for documents, books, and other objects. The second mode uses the "base light," which allows instructors to project images from transparencies. Instructors can also use document cameras to write on documents or transparencies as students follow along. As of the fall 2012 semester, all new DCS rooms include a document camera. To see if your classroom has a document camera,
search for your room and check the "Technology" tab. If your classroom does not have a document camera, you may request one by filling out the Equipment Request form.
(a.k.a. VGA adapter, HDMI adapter, display adapter, adapter)
A dongle is a small adapter cable which is used to connect laptops and mobile devices to display devices. In DCS classrooms, dongles are used to connect devices that do not have VGA or HDMI ports to in-class projectors. One end of the dongle fits the device's display port while the other end has a female VGA or HDMI port, which is able to connect to a VGA or HDMI cable that goes to the projector. Because there is no one standard display port, DCS asks that instructors provide their own dongle. For information about purchasing a dongle and for a full list of dongles for Apple laptops, phones, and tablets - view our
Apple Adapter Cheat Sheet.
(short for High-Definition Multimedia Interface)
HDMI is a compact audio/video interface for transferring high definition video and audio from a device to a display. Unlike VGA connections, HDMI connections transmit both audio and video over one cable, rather than requiring separate connections. In DCS classrooms, HDMI is used to connect podium computers, Blu-ray players, document cameras, laptops, and other user devices to high-definition projectors. As of the fall 2012 semester, all new podium equipment is connected to in-class projectors via HDMI cables. New podiums also include a HDMI port through which instructors can connect their own HDMI devices. To see if your classroom has an external HDMI input for your mobile device,
search for your room and look for "HDMI input" on the "Classroom Features" tab. For further info on HDMI, view our HDMI overview.
When referring to video, high-definition is a loose term used to indicate video of a resolution higher than standard. Typically, a video image with a resolution of at least 720 horizontal lines is considered high-definition. HD can be used to refer to equipment that creates or transmits a signal, as well as display devices on which video is viewed. For example, DVD players are standard definition while Blu-ray players are HD. Therefore, if a DVD player is connected to a HD data projector, the image will project in standard definition. The type of high-definition is defined by the resolution, scanning system (progressive or interlaced), and number of frames per second. Minute red, green, and blue dots are lit up one after the other from left to right in horizontal rows (or lines) from the top of the screen (or frame) to the bottom. “Interlaced scanning” means that odd rows are skipped on one scan and even rows on the next. “Progressive scanning” means that all the lines of the frame are painted during each scan. As of the fall 2012 semester, all new DCS installations utilize HD computers, document cameras, and Blu-ray players that are connected to HD data projectors via HDMI cables.
(a.k.a. handheld device, handheld, portable device)
Mobile device is a term used to refer to handheld computing devices. For the purposes of instructional technology, mobile devices typically refer to smart phones and tablets. Mobile devices offer a way to present in class from the palm of your hand. For more information, check out our instructions on
projecting from mobile devices and our blog piece on mobile apps.
(a.k.a. transparency projector, overhead)
An overhead projector consists of a box on which transparencies can be placed and projected. A bright lamp inside the box shines through the transparency to a mirror on an arm above the box ("overhead"), which redirects the light forward. In the classroom setting, overhead projectors are often used to display printed transparencies and to instruct by writing on transparencies with a marker. As of the summer of 2013, some DCS classroom contain overhead projectors. These projectors are attached to wheeled carts which can be positioned so that the image projects on to a screen at the front of the room. Beginning in the Fall 2013, upgraded classrooms will have high definition document cameras instead of overhead projectors. To see if your room has an overhead projector,
find your classroom and check the "Technology" tab.
The PC Podium is one of the classroom systems provided by DCS. PC Podiums are comprised of a Dell Computer which is attached to a data projector which projects on to a pull down screen at the front of the room. To use the system, users must log in to the computer with their Net ID and control the system using the computer. For more information and instructions, visit the
PC Podium page. To see if your room has a PC Podium, find your classroom and check the "Technology" tab.
Pixie Push-Button System
(a.k.a. Pixie System)
The Pixie Push-Button System is a simple presentation hub especially suited for faculty who want to present from laptops and mobile devices. Pixie Systems are comprised of two boxes mounted on the wall at the front of the room. One box contains controls which allow users to turn on the projector, choose their device, and adjust the audio level. The second box contains inputs to which devices may be connected. All Pixie rooms include a VGA connection and RCA video inputs. Some Pixie rooms also include HDMI connections and DVD/VCR combo units. For more information and instructions, visit our
Pixie page. To see if your classroom has a Pixie Push-Button System, find your classroom and check the "Technology" tab.
Podium refers to equipment cabinets that function as presentation stations at the front of DCS classrooms. DCS podiums contain the devices instructors need to access to run presentations (e.g. Blu-ray players, microphones, document camera, etc.), inputs at which mobile devices can be connected (e.g. VGA, RCA, or HDMI inputs), and a control panel (e.g. touchscreen, push-buttons) at which instructors can operate the devices. As of the summer of 2013, there are five main types of podiums: the Digital Classroom Podium, Crestron Touchscreen, SP Push-button, Pixie Push-button, and PC Podium. To see what kind of podium your room has, find your classroom and check the system listed under the "Classroom Features" tab.
(a.k.a. delivery equipment)
Portable equipment are items which DCS has available for instructors to use in classrooms that are not already equipped with that item. The list of portable equipment offered by DCS includes; Blu-ray players and international Blu-ray players; CD players; 35mm slide projectors; DVD players and international DVD players; document cameras; data projectors; hand-held microphones, wired lavalier microphones, microphone stands, and speakers; VCRs and international VCRs; web cameras; wireless presenters. DCS will deliver equipment for up to four course meetings. Instructors who need equipment for more than four course meetings may loan out portable equipment for the duration of the semester. If you would like portable equipment, please fill out our
Equipment Request form.
(a.k.a. confidence monitor, monitor)
A preview monitor is a small screen that is intended to be visible only to the presenter and can be used to see what is being displayed to the audience. In DCS classrooms, preview monitors are used to enable instructors to view the image being projected on the main screen without having to turn around. Some DCS podiums contain preview monitors that are separate and next to the touchscreen which is used to operate the podium. In other rooms, the preview image is located in the corner of the touchscreen itself.
(a.k.a. RCA video inputs, video inputs, auxiliary inputs, aux inputs)
RCA Inputs are ports used to connect devices using RCA cables. RCA ports provided by DCS are used to connect devices via composite video (typically yellow) and stereo audio (typically red and white) cables. These ports can be used to connect analog video devices such as VCRs, DVD players, and camcorders to classroom data projectors. To see if your classroom has RCA inputs,
find your classroom and check the additional items listed under the "Classroom Features" tab.
(a.k.a. Region Free, International)
Region 0 is a term used to refer to DVD and Blu-ray players that can play discs from any country. For DVDs, Region 1 and Region ALL discs can be played on any DCS player. Discs from regions 2 through 8 can only be played on Region 0 players. For Blu-rays, Region A discs can be played on any DCS Blu-ray player, while Region B and C discs can only be played on Region 0 Blu-ray players. The region of a DVD or Blu-ray is typically indicated on the disc's packaging. To see if a player in your room is Region 0,
find your classroom and check the "Technology" tab. Players that list "Region 0" under the subtype can handle discs from any country. If your classroom does not have a Region 0 player, you may request one by filling out the Equipment Request form.
SP Push-Button System
(a.k.a. SP System, SP Control System)
The SP Push-Button System is a classroom technology hub used in many DCS classrooms. All SP Systems include a DVD player and a VGA connection for projecting from laptops and mobile devices. Some SP systems also include VCRs and microphones. SP System equipment is housed in either a black, metal cabinet at the front of the room or a wall-mounted pull out unit. SP Systems are connected to ceiling-mounted data projectors which project on to screens at the front of the room. For more information and instructions, including instructions, please visit the
SP page. To see if your classroom has a SP Push-Button System, find your classroom and check the "Technology" tab.
System is a term for in-class technology hubs at which instructors can run multiple types of presentations. Systems may include devices instructors need to access to run presentations (e.g. Blu-ray player, microphones, document camera, etc.), inputs at which mobile devices can be connected (e.g. VGA and HDMI ports), and a control panel at which instructors can operate the devices. As of the summer of 2013, there are five main types of DCS systems: the Digital Classroom Podium, Crestron Touchscreen Systems, SP Push-button Systems, Pixie Push-Button systems and PC Podiums. While all DCS podiums are also systems, not all systems are podiums. For example, all Pixie-Push Button systems and some SP Push-button systems are not contained in podiums. For more detailed information on each DCS system, visit the
In-Class Technology page. To see what kind of system your room has, find your classroom and check the system listed under the "Classroom Features" tab.
A tablet is a one-piece mobile computer, typically controlled via a touchscreen. Popular tablets include the Apple iPad, Samsung's Galaxy Tab, and Microsoft's Surface. Many tablets can be connected to classroom projectors, enabling instructors to run presentations. For more information, view our
instructions on projecting from mobile devices, our overview of dongles, and our review of top mobile apps.
A touchscreen is an electronic visual display that users can control by touching the screen with one or more fingers. DCS utilizes two types of touchscreens. In Crestron Touchscreen Systems, a touchscreen is used to control the system. The touchscreen is activated by pressing it anywhere. When the welcome screen is pressed, the rest of the system and the data projector turn on. A main menu then appears from which users can select the device they would like to use. The Digital Classroom Podium uses a touchscreen that serves as a means to control the system's devices and view the image from the podium computer.
(a.k.a. USB flash drive, flash drive, jump drive, thumb drive)
A USB drive refers to a data storage device that utilizes flash memory - meaning that it can be electrically erased and reprogrammed - and connects via a Universal Serial Bus (USB) interface. Typically, USB drives are small, light "sticks" that can easily be carried around and used to store files and programs which can be opened and used when the drive is connected to a computer. The Digital Classroom Podium includes a USB port that is connected to the podium computer. Instructors can bring their presentations or other files to class on a USB drive and access them by plugging it into the USB port. For more information, visit the Digital Classroom Podium
How Do I...? page.
(a.k.a. Video Graphics Array)
VGA is an analog computer display standard that is transmitted through a 15-pin connector. All DCS classroom systems include a VGA port and cable, which can be connected to in order to project images from laptops, phones, and tablets. Portable devices with VGA ports can use the provided VGA cable to connect directly to DCS systems. While VGA was the standard display port for many PC laptops, it has begun to be
phased out in favor of newer connection types. Devices that do not have VGA ports can still connect using a VGA dongle. In rooms with HDMI inputs, portable devices with HDMI ports can be used without a dongle by using the provided HDMI cable.
(a.k.a. Web Camera)
A webcam is a digital camera that is connected to a computer or network to record and transmit video, audio, and still images. Webcams are typically small devices that include a microphone and are connected using a USB plug. In the classroom, webcams are most typically used to video chat, allowing students or presenters in other locations to communicate with those in the classroom. Webcams can be connected to the Digital Classroom Podium using the USB drive or used with instructor's personal laptops. DCS offers the Logitech C615 webcam for delivery or semester loan. The C615 web is Mac and PC compatible and can be used with popular video chat applications like Skype and FaceTime. To request a webcam, fill out the
Equipment Request form.
Widescreen refers to images that are wider than the typical standard ratio of 4:3. Typical widescreen aspect ratios for projection and computer displays are 16:9 and 16:10. As of the fall of 2012, all new DCS rooms utilize widescreen projectors, computer monitors, and screens.
Wired Lavalier Microphone
A wired lavalier microphone consists of a microphone that clips to the speaker's shirt and a body pack that can be put in a pocket or attached to a belt. However, unlike wireless microphones, wired lavalier microphones connect to speakers or classroom systems via a cable. DCS offers these microphones for instructors who would like to use a hands-free microphone in a room that is not equipped with a wireless microphone system. The cable provided is long enough to allow instructors to walk around the front of the room. To request a wired lavalier microphone, fill out the
Equipment Request form.
A wireless presenter is a small, hand-help remote control that is used to run computer-based slide show presentations or to control other computing operations. With wireless presenters, instructors can advance slides, control video playback, or use a mouse from anywhere in the room. Wireless presenters typically consist of the remote and USB stick. Instructors can use a wireless presenter with the Digital Classroom Podium by plugging the stick into the podium's USB port. Most Mac compatible "plug-and-play" wireless presenters should work with little set up. DCS offers the Satechi SP400 wireless presenter for delivery or semester-long loan. The SP400 can be used with the DCP or any USB-capable laptop running Windows 7, Vista, XP, or Mac OS. To request a wireless presenter, fill out the
Equipment Request form.