Flashcards
Chapter 14 - Emerging Trends, Technologies, and applications
Cards in this deck (42)
- 1chapter 14 - emerging trends, technologies, and applications-yeehaw baby
- 214-1) Trends in software and service distribution a)pull and push technologiesadf
- 3pull technology-a user states a nedd before getting information, as when a URL is entered in a Web browser so the user can go to a certain web site
- 4push technology-also known as "webcasting", a web server delivers information to users (who have signed up for this service) instead of waiting for users to request the info be sent to them
- 5application service providers-provide access to software or services for a fee
- 6software as a service (SaaS)- also known as "on-demand software", is a model for ASPs to deliver software to users for a fee; software is short term or long-term
i.e- the software that you need to access and edit a powerpoint is available on the providers site. - 7saas note-only deals with software and not data and documents
- 8SaaS can take several forms-software services for general use, such s office suite packages
-a specific service, such as credit card processing
-service in a vertical market, such as software solutions for doctors, accountants, and attorneys - 9note - advantages and disadvantages for ASP software-the customer does not need to be concerned with current software
-personnel time is freed up
-vendors can spread the cost over several customers
-software is kept up to date
-guarantees a certain level of technical support
Disadvantages
-only limited range of applications, no specialization
-apps might not meet the needs of org bc they didnt design them
-integration with organizational systems might be difficult - 1014.2 - virtual reality definition-uses computer-generated, three-dimensional images to create the illusion of interaction in a real-world environment
- 11note-everyday world in VR technology is referred to as "information environment"
- 12note - terms that help understand VRsimulation - giving objects in a VR environment texture and shading for a 3D appearance
interaction - enabling users to act on objects in a VR environment, as by using a data glove to pick up and move objects
immersion - giving the users a special experience using hardware and software (CAVE)
telepresence - giving users the sense that they are in another location and can manipulate objects as though they are actually in that location
full -body immersion - allowing users to move around freely by combining interactive environments with cameras, monitors etc.
networked communication - allowing users in different locations to interact and manipulate the same world at the same time by connecting two or more virtual worlds - 1314-2a) types virtual environments egocentric andexocentric definition of bothegocentric environment - the user is totally immersed in the VR world
exocentric world - the user is given a "window view" - 1414-2b) components of a virtual reality systemhan
- 1514-2c) CAVE-asdfa
- 16cave automatic virtual environment (CAVE)-is a virtual environment consisiting of a cube-shaped room in which the walls are rear-projection screens. CAVES are holographic devices that create,capture, and display images in true 3D form. universities use these for geological research and such
- 1714-d) virtual reality applications note on current business applications of VR systemsassistance for the disabled - quads can use an HMD 360 - view of their surroundings, or people with celebral palsy can learn how to operate a motorized wheelchair in a VR environment
architectural design - architects and engineers use VR systems to create buliding and show bitches how it is
education- used to teach kids math skills
flight simulation - commercial airlines and the military have been using flight simulators - 18obstacles in using VR system- confusion between the VR environment and the real environment
- mobility ad other problems with HMDs
-difficulty representing sound
-need for additional computing power - 1914-2f) virtual worlds definition-is a simulated environment designed for users to interact with one another via avatars
- 20avatars-is a 2D and 3D graphical representation of a person in the virtual world, used in chat rooms and online games
- 2114-2g augmented reality-is a branch of virtual reality that generates a virtual scene that is overlaid on the real object
- 22note on the spectrum of vrAR - is augmented reality, augmented properties of real world objects
VR - mind is tricked into thinking they're in a new virtual world
MR - mixed reality, real objects distinguish between real and digital objects - 2314-3) radio frequency identification: an overviewdefn - tag is a small electronic device consisting of a small chip and an antenna. This device provides a unique identification for the card or the object carrying the tag
- 24note - two types of RFID tagspassive - RFID tgas have no power supply, so they can be very small. absorb signal form the reader device convert energy and beep it back
active - have internal power, more reliable, long range - 25RFID applications-tracking and identification
-payment and stored-value systems
-access control
-anti-counterfeiting
-healthcare - 2614.4 - quick response codes-is a matrix barcode consisting of black modules arranged in a square pattern on a white background
- 27qr codes compared to the following features-high storage capacity
-small printout size
-dirt and dust resistance
-readable from any direction
-compatible with the Japanese character set - 28biometrics: a second look-have become more prominent in forensics and law enforcement since 9/11
- 2914-6) trends in networking-examining the trends
- 3014-6a)wifi - wireless fidelity-is a broadband wireless technology. information can be transmitted over short distance - typically 120 feet indoors and 300 feet outdoors - in the form of radio waves
- 3114-b) wiMax - worldwide interoperability for microwave access-is a broadband wireless based on the something standards. it is designed for wireless metropolitan area networks and usually has a range of about 30 miles for a fixed stations and 3-10 miles for mobile stations
-high costs and interruptions from rain, etc. - 3214-6c) bluetooth- which can be used to create a personal area network (PAN), is a wireless technology for transferring data over short distances (usually within 30 feet) for fixed and mobile devices
- 3314-6d) grid computing- involves combining the processing powers of various computers. with this configuration, users can make use of other computers' resources to solve problems involving large-scale, complex calculations, such as circuit analysis or mechanical design - problems that a single computer is not capable of solving in a timely manner
-each computer is refered to as a node
-cost saving is a major advantage - 34notes - other advantages of grid computing include and one disadvantageimproved reliability - if on node in the grid fails, another node can take over
parellel processing - complex tasks can be performed in parellel, which improves performance. In other words, a large complex task can be split into smaller tasks that run simultaneously on several nodes
scalability - additional nodes can be added without hindering the connection
disadvantages
-some apps cant be shared - 3514-6e) utility of demand computing-is the provision of IT services on demand. Users pays for computing or storage resources on an as-needed basis, similar to the way one pays for utilities such as heat and water
-deals with hardware - 3614-6f) cloud computing-incorporates, under one platform, many recent technologies, including the Saas model, web 2.0, grid computing, and utility computing; hence, a variety of resources can be provided to users over the internet. business applications are accessed via a web browser, data is stored on the provider's servers
- 37cloud computing includes components in the form of infrastructure as a service IaaS defn-also called hardware as a service, is a type of cloud computing whereby computer infrastructure (such as storage, hardware, servers, and networking components) are delivered as a service
- 38platform as a service-provides a computing platform and a solution as a service. clients use the platform and environment to build applications and services over the internet
- 39public, private, hybrid and community clouds: which one to choosepublic - best for big organizations that need scalability
private - this shit private
hybrid - one public and one private cloud
community - made for a community of users from organizations that shares common concerns, owned by an org, third party etc. - 40cloud computing security-companies using should provide end-user education
-two types of security issues, the client (user) side and the server (provider) side - 41seven cloud-computing risks1-privileged user access - who has access to your data
2-regulatory compliance - availability of external audits and security certification's
3-data locations - specific juridications and commitment to local privacy
4-data segregation
5-recovery
6-investigative support
7-long-term viability
-make sure the company has one - 4214.7 - nanotechnology definition-incorporates techniques that involve the structure and composition of materials on a nanoscale
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- Flashcards on Chapter 14 - Emerging Trends, Technologies, and applications, created by nathan fulcher on 30/11/2019.
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