Single machine or multiplexing demonstration switching network for computer

Abstract

A computer one-machine or multipath demo switch network is composed of a two position multicolumn switch (K), a teaching machine display card signal post head, a student machine display signal input post head and a student machine display card signal input post head, among which, the student machine display signal input post head is connected with the output of a two-bit multicolumn switch, a set of contacts of which is connected with the teaching display card signal post head, another set of contacts of which is connected with the student display card signal input post head.

Description

technical field [0001] The invention relates to a computer component, in particular to a computer stand-alone or multi-channel presentation switching network. Background technique [0002] At present, the rapid development of computers, especially the progress of multimedia technology and computer-aided teaching, has made great progress in school teaching. Teachers can organize the lecture content into computer courseware, and use the large-screen projection connected to the computer to demonstrate to students. explain. Especially for courses with strong practicality, explanation and demonstration can be carried out directly on the computer, and students can watch the whole operation process through the large screen, which has become a commonly used teaching form. However, this teaching form also has the following deficiencies: 1. The traditional teaching method has developed from the monotonous teacher's dictation and the calculus process on the blackboard to the rich form...

AI Technical Summary

Problems solved by technology

However, this teaching form also has the following deficiencies: 1. The traditional teaching method has developed from the monotonous teacher's dictation and the calculus process on the blackboard to the rich form of using the fire screen to project multimedia, which is intuitively demonstrated to the students. However, teachers still need to explain the key points on the blackboard. After explaining the more practical course content, they still need to practice on the computer.

Therefore, the tiresome teaching work is continuously carried out in the cycle of lectures, demonstrations, computer practice, computer tutoring, demonstrations, and lectures, and cannot completely get rid of the traditional teaching mode. Lectures, demonstrations, and practice are still out of touch with each other; 2. Due to The large-screen projection demonstration environment and the computer practice environment are relatively independent. For the existing computer practice environment, that is, the unit with a computer room environment composed of a single computer or a network, it is necessary to reinvest in the demonstration environment and spend a lot of money to purchase a large-screen projector.

The existing network system is only limited to the practice link, resulting in a waste of resources; 3. The large-screen demonstration environment requires dark indoor light, which is not conducive to students taking notes. The projection screen is too large to affect the clarity of the image. Blurred, the color has a large gap compared with the computer monitor, and the teaching effect is not ideal. This is a technical problem that has not been solved for a long time

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