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63 Cards in this Set
- Front
- Back
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what are the different types of search engines (3)
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directory sites (yahoo, looksmart), crawler-based engines (google), meta search engines (profusion, northern lights)
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what is a robot/crawler/spider
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a program that visits and parses websites to find new listings. first one in 1993 by matt gray
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problems with crawlers
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swamp servers with rapid fire requests, caches temporary information. undone by robots exclusion standard
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tell me about yahoo
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started in 1994 by 2 stanford grads, more than a search engine (auctons, news, marketplace, broadcast). in decline compared to google
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tell me about google
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started in 1996 by 2 stanford grads, ranks page relevancy, most important crawler based service
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suggestions for improving page rank
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primary keyword phrase in title tag, and in an h1 tag near code
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market for 3d web has been:
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slow to develop because of lack of bandwidth, standards, and tools, but in demand from gamers, ecommerce, and scientists
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how does 3d web help understanding
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gives sense of hierarchy, more like human experience, richer sorting, and can be fluid. but it can also add confusion and clutter. games set the standard
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tell me about MMORPGs
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massively multiplayer online role playing game, many people participate on a persistent virtual world, which evolves even while players are offline
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tell me about MUDs
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multi-user dungeon/dimension/domain games, precursor to mmorpg
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tell me about virtual worlds
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virtual worlds like There and Second Life are technological challenges, because most data is on server and scales with population increase. customer driven content, can be used to teach college courses, have working economies, microsoft interviews are conducted in second life, painful growth curve
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what are some controversies in virtual worlds
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ownership and property rights, and whether the person owns it or the company (linden labs for second life).
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what is WWW3D multi user browser
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provides a 3d display that integrates the web browsed by user and a history information.
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examples of using 3D on the web
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furniture.com, arranging furnishings in a recreation of your home.
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VRML
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written in 1994 by tony parisi and mark pesce, formed consortium in 1996
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ABone
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2000, active network backbone to test networks stripped of intelligence. data packets carry software and instructions to deliver themselves
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Grid Computing
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software developed to link scattered computers and data resources. using the collective power of many computers together like a giant supercomputer
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planet lab
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2002, efforts toward a smart network
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internet2
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1996, consortium of 200 universities created a faster internet (3500x faster than dsl)
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MBone
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multicast backbone allows many people to see the same real time information
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arpanet
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1969, computers exchange data
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internet (1)
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1972, network of smaller networks
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internet growth areas
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1. e-commerce 2. web services 3. videoconferencing 4. virtual environments 5. streaming media. future applications include home entertainment, movies on demand, and 3d videoconferencing. non pc connections include cellphones, appliances, and self configuring networks
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what is a mashup
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a website/program that takes information from different sources and plots it together. like housingmaps
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tell me about social networking
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change from the bottom-up. grew out of bulletin boards, instant messengers, email, and going toward more specialized/niche and mobile devices
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tell me about semantic web
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tim berners lee, wants information to be interpreted in addition to being displayed. users add tags to content, as metadata, which would define aspects of the data. it might not work because human behavior suggests it won't, and because the value of web is accessibility
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high speed to the home
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this is an attempt to solve the metro bottleneck, by using single signal fibers, verizon is pushing fiber optic
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what is free space optics
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last mile solution using lasers to beam information to receivers
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what is the biggest sector of e-commerce
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b-to-b (business to business) because it is so much bigger (money wise) than b-to-c
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g2,g3,g4
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g1 is analog service, g2 is switch to digital, g2.5 is switch to packets, g3 is just faster service, more bandwidth
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what is the www consortium for implementing media on the web? meaning synchronizing audiotracks to images. its a modeling language
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SMIL
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when was vrml developed
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1996. but people say it holds VR back, and thats why most have switched to X3D
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what is the wireless protocol expected to allow smart appliances to communicate?
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bluetooth
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T or F, you can only create a 3D image by showing different images to left eye and right eye
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true
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how can you do 3D on a flat screen?
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hardware solutions (shuttered glasses), autostereoscopic displays (screens with a wavy lenticular screen over it)
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T or F, the market for streaming media is primarily entertainment, but not business?
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false. big in both, used in business for web conferencing
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who wants to be the reuters of streaming entertainment/news?
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CNN
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what is divX
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compression file format used for video encoding
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what did itunes push forward
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micropayments, which is taking the web by storm because traditional payment systems are too expensive/too cumbersome for companies
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paypal was the best secure payment system, what is the new one that rose above the rest?
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peppercoin beat out beenz, digicash, and digital wallet (which died in 1995)
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what is planet lab, really
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hundreds of smartnodes
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what's a smartnode?
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a computer attached to a router that tries to give intelligence to the router so it knows something about traffic patterns
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what are some of the promises of smartnodes?
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stop viruses, meet high demand periods without interruption of service, and putting all your files on the internet so it can be accessed worldwide
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what is the goal of tim berners lee in his semantic web thing
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webware where the web automatically formats web content to the user, rich 3d enviros for websites, voice recognition for primary interaction, or to interpret data so machines sort in a more intelligent way. really complicated
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what did aamen ramen hypothesize?
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that thousands of dollars are lost to idle shopping carts, due to complicated checkout systems.
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what are some things that can make checkout systems confusing?
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they ask you to sign up, and they don't respond well to errors. these lead to the customer leaving
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what was the big reason for inventing internet2
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internet1 was too slow
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in what state has grid computing helped to revitalize a sagging economy?
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south carolina
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what's a unique feature about advertising on mobile devices?
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contextual ads
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what is digital fountain
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delivery system for streaming media, kills buffering by overlapping packets at lower resolution
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what is a difficulty with streaming video/audio?
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it is time sensitive, and the internet's architecture doesn't really pay attention to that. it solves this with buffering
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if you embed a video file, what are 2 attributes you should specify that don't apply to audio file?
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height and width
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what is turbosquid.com
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online shopping mall in 3D
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have corporations embraced going on exterior grids?
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no
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would web retail cause severe disintermediation?
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hypothetically yes, but it hasn't happened because we're creatures of habit. the exception is if the object is expensive
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what's the problem with mobile devices being able to do more powerful things?
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the battery technology hasn't met the same rate of development, and the new applications are more and more power thirsty
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T or F, cookies are small files on an ecommerce server that contain user information
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false, they're kept on the user's hard drive
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can cookies bring viruses?
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no, they're little text files
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what are options for inputting data to your mobile device?
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the worst option is using your phone's keypad, some better options are voice recognition, touch sensitive keypad, projected keypad, foldout keypad. we have the qwerty keyboard in mini size
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what is a sponsored website
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a website that carries legit information, but is sponsored by a company, and thus all product recommendations come from the same place. regarded as dishonest, failure
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are banner ads successful for brand recognition?
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yes
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can you match the transmission speed of ntcp tv when you compress a video file?
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no, not even close.
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what are the 4 things you can compress in a video?
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lower framerate, lower colour depth, smaller picture (lower res), and using compression in every frame to avoid saving the same information more than once
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