Trends in IT Technology

Transcription

1 Week 10 rends in echnology

2 Lecture opics Virtual reality components and applications ummarize new uses of biometrics oftware as a service Virtual reality D etworking rid, utility, and cloud computing anotechnology

3 Pull and Push echnologies Pull technology User states requests information ntering a UL in a Web browser to go to a certain Web site Push technology (Webcasting) Web server delivers information to users who have signed up for this service upported by many Web browsers lso available from vendors Delivers content to users automatically at set intervals or when a new event occurs

4 pplication ervice Providers oftware as a service (aa), or on-demand software ee based delivery of software to users oftware Can be temporary or long-term use ervice providers maintains and upgrades Users can also save all application data on the P s server oftware and data are portable he aa model can take several forms: oftware services for general use ffering a specific service ffering a service in a vertical market

5 pplication ervice Providers dvantages: imilar to outsourcing Less expensive Delivering information more quickly ther advantages and disadvantages Vendors: oogle, etuite, nc., and alesforce.com

6 Virtual eality oal of virtual reality (V): Create a real world environment in which users can interact and participate V technology computer-generated, 3D images to create the illusion of a real-world environment V Components Visual and aural systems anual control for navigation Central coordinating processor and software system

7 Virtual eality V terminology: imulation nteraction mmersion elepresence ull-body immersion etworked communication

8 ypes of Virtual nvironments gocentric environment User is totally immersed in the V world ost common technology used with this environment is a head-mounted display (HD)

9 n automatic virtual environment (CV) a Virtual environment consisting of a cube-shaped room in which the walls are rear-projection screens CVs CVs Holographic devices that create, capture, and display images in true 3-D form

10 CV equirements People can enter CVs in other locations o matter how far away they are geographically High-speed digital cameras capture one user s presence and movements hen re-create and send these images to users in other CVs Used for research in many fields: rchaeology, architecture, engineering, geology, and physics

11 Virtual eality pplications ilitary flight simulations edicine for bloodless surgery ntertainment industry ducation light simulation Videoconferencing roup support systems Current applications: pplications for the disabled rchitectural design

12 V ystems bstacles ot enough fiber-optic cables are currently available for a V environment capable of re-creating a conference Problems that must be solved: Confusion between the V environment and the real environment obility and other problems with HDs ound representation dditional computing power

13 Virtual Worlds imulated environment designed for users to interact via online avatars Used in chat rooms and online games With avatars, users can: anipulate objects xperience a limited telepresence Communicate using text, graphical icons, and sound artner roup predicts that 80% of active nternet users will interact in virtual worlds by 2011 because of interactive online games

14 Virtual Worlds xample econd Life everal million members from all over the world ome companies use econd Life to establish or enhance their image, generate sales leads, and increase sales ome experts believe that groups work together better in virtual worlds than in face-to-face meetings and teleconferences

15 adio requency dentification D mall electronic device consisting of a small chip and an antenna Provides a unique identification for the card or the object carrying the tag Don t have to be in contact with the scanner to be read Can be read from a distance of about 20 feet

16 Passive ypes of D ags o battery Best ones have about 10 years of battery life ctive Usually more reliable than passive tags echnical problems and issues of privacy and security

17 Biometrics, credit, and debit cards etwork and computer login security Web page security Voting mployee time clocks irport security and fast check-in Passports and highly secured government D cards porting events Cell phones and smart cards

18 Wireless idelity (Wi-i) nformation can be transmitted over short distances n the form of radio waves Broadband wireless technology Based on the a, b, g, and n standards Connect via: Computers, mobile phones and smart phones, P3 players, PDs, and game consoles Wi-i hotspots

19 Worldwide nteroperability for icrowave ccess (WiX) Broadband wireless technology Based on the standards Designed for wirelolitan area networks heoretically has faster data transfer rates and a longer range than Wi-i Disadvantages: nterference from other wireless devices, high costs, and interruptions from weather conditions

20 Bluetooth Can be used to create a personal area network (P) Wireless technology for transferring data over short distances pecifications are developed and licensed by the Bluetooth pecial nterest roup Uses a radio technology called requency Hopping pread pectrum (H)

21 Bluetooth Used to connect devices such as: Computers, global positioning systems (Ps), mobile phones, laptops, printers, and digital cameras o line-of-sight limitations Limited transfer rate

22 rid Computing Clustering - Connecting different computers to combine their processing power to solve a particular problem ode - ach participant in a grid Processing on overused nodes can be switched to idle servers and even desktop systems dvantages: mproved reliability Parallel processing nature calability

23 Utility (n-demand) Computing imilar to the aa model Provides services on demand Users pay for computing or storage resources on an as-needed basis ain advantages Convenience and cost savings Drawbacks Privacy and security

24 Cloud Computing Platform incorporating many recent technologies under one platform, including: aa model, Web 2.0, grid computing, and utility computing Variety of resources can be provided to users over the nternet ervices typically require a fee ome are free

25 Cloud Computing ame advantages and disadvantages as distributed computing Vendors - Vmware, icrosoft, ed Hat, mazon, B, Cisco, Citrix, oogle, alesforce.com, racle, DPBX, C/, ymantec xample oogle pps Provides commonly used applications accessed via a Web browser ncludes mail, oogle alk, and oogle Docs, diting Word document on an iphone

26 Cloud Computing in ction mazon.com stablished a computing platform that companies can use, regardless of their location Provides storage and processing power on demand Companies pay only for the resources they use oogle pps ntroduced in ebruary 2007

27 anotechnology ncorporates techniques that involve the structure and composition of materials on a nanoscale anometer is one billionth of a meter (10-9 ) Current technology for making transistors and other components might reach their miniaturization limits in the next decade ome consumer goods incorporating

28 ummary We discussed the following: Virtual reality components and applications ummarize new uses of biometrics oftware as a service Virtual reality D etworking rid, utility, and cloud computing anotechnology

29 Discussion Questions 1. What do you see as being the advantages and disadvantages of using software as a service (aa)? 2. Discuss artner's seven cloudcomputing security risks, and how you would mitigate the risks

30 ead ssignments Chapter 14: merging rends, echnologies, and pplications eview the Lecture ctivities Discussion valuation erm Paper: Key Concept in nformation ystems ucertify ssessment 11