Cbse, IT, Computer, class 8, : Subject - Computer, Ch - 6, Internet Applications and Emerging Technologies [ N. B / W. B ]

Cbse, IT, Computer : Subject - Computer, class 8,  Ch - 6, Internet Applications and Emerging Technologies [ N. B / W. B ]  

1	Fill in the blanks.
a.	is a category of e-commerce, where customers sell products or services to other customers.
Ans:	C2C (Customer to Customer)
b.	Online stores rely on a service provider called                              that processes credit card payment for e-business and online retailers.
Ans:	Payment Gateway Provider
c.	The                     are a series of digital audio files that are broadcast on the internet and are available for downloading to a computer or mobile devices.
Ans:	Podcasts
d.	The                               uses your existing natural environment and simply overlays virtual information on top of it.
Ans:	augmented reality
2.	Answer the following questions.
a.	Explain the advantage of e-money over a Debit or Credit card.
Ans:	E-money or electronic money is an electronic alternative to hard cash. E-money can be held on either cards, devices or even a web server. It also does not require the user to have a debit or credit card. Example: M-Pesa, Paytm, PayPal.
b.	Describe three areas where artificial intelligence is being developed.
Ans:	·         Expert systems have been developed that are programmed to make decisions based on the information given to them. ·         Intelligent systems are being used that can hear and understand the natural language of humans.

 

	·         Robotic vacuum cleaners that can detect and clean around walls and other objects effectively are becoming more and more popular. ·         Self-parking and self-driving cars are already being tested. These could drastically reduce the number of road accidents. ·         Smart homes will have features to distinguish between homeowners and intruders and alert the police in case of an intrusion. ·         Robotic assistants are being used to assist doctors by quickly and accurately pass surgical tools to doctors. (Any three)
c.	Explain what is virtual reality?
Ans:	Virtual reality refers to the use of computer technology to create an artificial or simulated environment, where users are fully immersed. Users make use of eye goggles, special gloves, headphones and powerful computers to get a feeling of reality.
d.	What is the difference between virtual reality and augmented reality?
Ans:	Virtual reality creates a completely artificial environment that provides an immersive experience, while augmented reality overlays new information on top of an existing environment by using a camera, smartphone or other devices.
e.	Your school plans to start a blog. Explain the different ways in which blogging can be used in school.

 

Ans:

·         Blogging is a great way to write and share ideas about classroom and school events. ·         Teachers can use blogs to publish resources, assignments, due dates for submissions, class events and keep students and parents up to date. ·         Blogging can help students improve their writing skills. ·         You can publish your writing and educate others on a particular topic.