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Opaque projectors are typically used to project images of book pages, drawings, mineral specimens, leaves, etc. -
It is an early type of image projector. It was in wide use from the 18th century until the mid-20th century. -
It is the technology of signaling and communicating using radio waves. Classrooms began incorporating radios into different subjects. -
Using 16mm film, professionally-produced moving images were introduced into the classroom. The educational & commercial films were available on rent. -
The film projector uses a very bright light source and lenses to project a big, bright image onto a screen. The rays emerging from the condenser pass through the film. -
The first real OHPs were produced for air-force use in mapping and briefings during World War II. It offered useful projection in rooms that no longer needed to be darkened. -
It was the first widespread consumer technology which was affordable and easy to use. It was used extensively to record the audio-visual content -
Whiteboards are analogous to blackboards, but with a smoother surface allowing rapid marking and erasing of markings on their surface. The popularity of whiteboards increased rapidly in the mid-1990s. -
Microcomputer, an electronic device with a microprocessor as its central processing unit (CPU). It was a complete computer on a small scale, designed for individual use. -
It can help students listen for the tone and voice that can be hard for students to recognize. It also gives the chance to listen to the topic more than once. -
It enables teacher to show any physical object via projector. The visualizers were called document cameras which were introduced first in 1988 & came into use in 21st century. -
The World Wide Web, commonly known as the Web, is an information system where documents and other web resources are identified by Uniform Resource Locators i.e. URL -
WEB 2.0 -
It is a type of application designed to run on a mobile device, which can be a smartphone or tablet computer -
In 1998, the first fully online programs were founded in different universities. Slide projectors and television-based classes have been in use since the 1950s. -
An interactive whiteboard ,also known as interactive board or smart board, is a large interactive display board in the form factor of a whiteboard. student can “interact” with the images. -
The idea of VR is expressed in 1957 but it came into use in 21st century. Virtual Reality (VR) is a computer-generated environment with scenes and objects that appear to be real. -
Augmented reality (AR) is an interactive experience of a real-world an environ-ment. AR was proposed in 1990 but came into use in 21st century. Projectors can be used to display AR contents.