Discuss the concept of virtual reality, especially with regard to VRML and its applications in the business arena
What will be an ideal response?
Virtual reality systems use interactive graphics software and hardware to create the illusion of reality in cyberspace. The original applications were in gaming, but new uses in education, science, and business are being developed and have great promise. Virtual reality applications are being developed for the Web using a standard called Virtual Reality Modeling Language (VRML), which can organize multiple media types to put users in a simulated real-world environment. VRML is platform independent, operates over a desktop computer, and requires little bandwidth. DuPont's HyperPlant is an example of a business application. HyperPlant allows users to go through three-dimensional models as if they were physically walking through a plant, which reduces errors during the construction of manufacturing structures. Augmented reality systems combine a direct view of physical world with computer-generated imagery to enhance the perception of reality. AR has been used in sports broadcasts, image guided surgery, military training, and other fields.
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The last four weekly values of sales were 80, 100, 105, and 90 units, respectively. The last four forecasts (for the same four weeks) were 60, 80, 95, and 75 units, respectively. Calculate the MAD, MSE, and MAPE for these four weeks
Sales Forecast Error Error squared Pct. error 80 60 20 400 .25 100 80 20 400 .20 105 95 10 100 .095 90 75 15 225 .167
When does a computer become a zombie?
A) when it becomes immune to botnets B) when it enters a secure site C) when it is infected by malware D) when it is hidden behind a firewall