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Mobile computing

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296: 620:: A vehicle cabin can often experience temperature swings from −30–60 Â°C (−22–140 Â°F). Computers typically must be able to withstand these temperatures while operating. Typical fan-based cooling has stated limits of 35–38 Â°C (95–100 Â°F) of ambient temperature and temperatures below freezing require localized heaters to bring components up to operating temperature (based on independent studies by the SRI Group and by Panasonic R&D). 2500: 132: 599: 572: 250: 33: 393: 74: 759: 287:. Communication issues include ad hoc networks and infrastructure networks as well as communication properties, protocols, data formats, and concrete technologies. Hardware includes mobile devices or device components. Mobile software deals with the characteristics and requirements of mobile applications. 550:
Potential health hazards: People who use mobile devices while driving are often distracted from driving and are thus assumed more likely to be involved in traffic accidents. (While this may seem obvious, there is considerable discussion about whether banning mobile device use while driving reduces
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Different security counter-measures are being developed and applied to smartphones, from security in different layers of software to the dissemination of information to end-users. There are good practices to be observed at all levels, from design to use, through the development of
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Power consumption: When a power outlet or portable generator is not available, mobile computers must rely entirely on battery power. Combined with the compact size of many mobile devices, this often means unusually expensive batteries must be used to obtain the necessary battery
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Portability: Devices/nodes connected within the mobile computing system should facilitate mobility. These devices may have limited device capabilities and limited power supply but should have a sufficient processing capability and physical portability to operate in a movable
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High-temperature battery settings: Lithium-ion batteries are sensitive to high-temperature conditions for charging. A computer designed for the mobile environment should be designed with a high-temperature charging function that limits the charge to 85% or less of
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Individuality: A portable device or a mobile node connected to a mobile network often denotes an individual; a mobile computing system should be able to adopt the technology to cater to the individual needs and also to obtain contextual information of each
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or USB. These devices include features other computer systems would not be able to incorporate, such as built-in cameras, because of their portability - although some laptops possess camera integration, and desktops and laptops can connect to a
785:: a slate tablet is shaped like a paper notebook. Smartphones are the same devices as tablets, however, the only difference with smartphones is that they are much smaller and pocketable. Instead of a physical keyboard, these devices have a 316:(QoS) of the network connectivity. In a mobile computing system, the network availability is expected to be maintained at a high level with a minimal amount of lag/downtime without being affected by the mobility of the connected nodes. 666:. Mobile applications might copy user data from these devices to a remote server without the users’ permission and often without the users’ consent. The user profiles automatically created in the cloud for smartphone users raise 756:(PDA) is a small, usually pocket-sized, computer with limited functionality. It is intended to supplement and to synchronize with a desktop computer, giving access to contacts, address book, notes, e-mail, and other features. 934:
orbit means having an unobstructed view of the southern sky. Some enterprise deployments combine networks from multiple cellular networks or use a mix of cellular, Wi-Fi and satellite. When using a mix of networks, a
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is a general-purpose computer that can be easily moved from place to place, but cannot be used while in transit, usually because it requires some "setting-up" and an AC power source. The most famous example is
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More and more users and businesses use smartphones as a means of planning and organizing their work and private life. Within companies, these technologies are causing profound changes in the organization of
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External antenna connections go through the typical metal cabins of vehicles which would block wireless reception and take advantage of much more capable external communication and navigation equipment.
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Many commercial and government field forces deploy a rugged portable computer with their fleet of vehicles. This requires the units to be anchored to the vehicle for driver safety, device security, and
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Transmission interferences: Weather, terrain, and the range from the nearest signal point can all interfere with signal reception. Reception in tunnels, some buildings, and rural areas is often poor.
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and therefore they have become the source of new risks. Indeed, smartphones collect and compile an increasing amount of sensitive information to which access must be controlled to protect the
540:. Security is a major concern while concerning the mobile computing standards on the fleet. One can easily attack the VPN through a huge number of networks interconnected through the line. 1692: 812:
A Pentop (discontinued) is a computing device the size and shape of a pen. It functions as a writing utensil, MP3 player, language translator, digital storage device, and calculator.
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network. These networks are usually available within a range of commercial cell phone towers. High-speed network wireless LANs are inexpensive but have a very limited range.
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is installed in an automobile. It operates as a wireless computer, sound system, GPS, and DVD player. It also contains word processing software and is Bluetooth compatible.
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are rated for severe vibration associated with large service vehicles and off-road driving and the harsh environmental conditions of constant professional use such as in
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All smartphones are preferred targets of attacks. These attacks exploit weaknesses related to smartphones that can come from means of wireless telecommunication like
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Interactivity: The nodes belonging to a mobile computing system are connected with one another to communicate and collaborate through active transactions of data.
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is expected to be transported during normal usage and allow for transmission of data, which can include voice and video transmissions. Mobile computing involves
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https://web.archive.org/web/20111126105426/http://ac-support.europe.umuc.edu/~meinkej/inss690/zimmerman/INSS%20690%20CC%20-%20Mobile%20Computing.htm
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Human interface with device: Screens and keyboards tend to be small, which may make them hard to use. Alternate input methods such as speech or
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Several categories of portable computing devices can run on batteries but are not usually classified as laptops: portable computers,
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Lachu Aravamudhan, Stefano Faccin, Risto Mononen, Basavaraj Patil, Yousuf Saifullah, Sarvesh Sharma, Srinivas Sreemanthula.
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software. On the other hand, both the 770 and the Zaurus can run some desktop Linux software, usually with modifications.
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Range and bandwidth: Mobile Internet access is generally slower than direct cable connections, using technologies such as
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Portable computers, compact, lightweight units including a full character set keyboard and primarily intended as
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Zimmerman, James B. "Mobile Computing: Characteristics, Business Benefits, and Mobile Framework" April 2, 1999.
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https://web.archive.org/web/20181110210750/http://www.doc.ic.ac.uk/~nd/surprise_96/journal/vol4/vk5/report.html
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Landay, J.A. Kaufmann, T.R., "user interface issues in mobile computing", Workstation Operating Systems, 1993.
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connections offer higher performance, may be either on a private business network or accessed through public
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David P. Helmbold, "A dynamic disk spin-down technique for mobile computing", citeseer.ist.psu.edu, 1996
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has become increasingly important in mobile computing. It is of particular concern as it relates to the
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Security standards: When working mobile, one is dependent on public networks, requiring careful use of
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line of laptops included some devices small enough to be called ultra mobile PCs. The hardware of the
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Vibration can decrease the life expectancy of computer components, notably rotational storage such as
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These classes are expected to endure and to complement each other, none replacing another completely.
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that can run multiple applications but are typically used for payment, travel, and secure area access.
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An application-specific computer is one that is tailored to a particular application. For example,
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covers areas where cellular and Wi-Fi are not available and may be set up anywhere the user has a
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that states a Knowledge editor's personal feelings or presents an original argument about a topic.
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Human–computer interaction in which a computer is expected to be transported during normal usage
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accidents.) Cell phones may interfere with sensitive medical devices. Questions concerning
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Mobile Computing Principles: Designing and Developing Mobile Applications with UML and XML
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Roth, J. "Mobile Computing - Grundlagen, Technik, Konzepte", 2005, dpunkt.verlag, Germany
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Touchscreen users easily interact with the units in the field without removing gloves.
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Other types of mobile computers have been introduced since the 1990s, including the:
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is a full-featured, PDA-sized computer running a general-purpose operating system.
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Boundaries that separate these categories are blurry at times. For example, the
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Koudounas, Vasilis. Iqbal, Omar. "Mobile Computing: Past, Present, and Future"
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Some of the most common forms of mobile computing devices are as given below:
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concerns on all major platforms, in terms of, including, but not limited to,
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networks. These networks are usually available within range of commercial
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The Telxon PTC-710 is a 16-bit mobile computer PTC-710 with MP 830-42 micro
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The Questronic Project and the Ferranti MRT 100 A Boon For Survey Research
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and personal data collection, regardless of user settings on the device.
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architecture in which they are embedded makes these features impossible.
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6000; the only reason it's not called a PDA is that it does not have
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internet tablet is essentially the same as that of a PDA such as the
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GH Forman, J Zahorjan - Computer, 1994 - doi.ieeecomputersociety.org
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data connections used in mobile computing take three general forms.
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had the clamshell form factor of a laptop but ran PDA software. The
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http://crystal.uta.edu/~kumar/cse6392/termpapers/Srikanth_paper.pdf
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Visibility of standard screens becomes an issue in bright sunlight.
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Ubiquitous Computing: Smart Devices, Environments and Interactions
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Mobile Computing: Technology, Applications, and Service Creation
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introduced a handheld application-specific mobile computer (the
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capabilities are limited as they can only boot into the single
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personal reflection, personal essay, or argumentative essay
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or data loss during network transitions or coverage loss.
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Pullela, Srikanth. "Security Issues in Mobile Computing"
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with which it came, in contrast with the PC BIOS model.
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from a distance through cellular networking technology.
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Sikos, Leslie F.; Haskell-Dowland, Paul (5 Sep 2019).
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but can also link to a physical keyboard via wireless
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to the satellite's location, which for satellites in
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IEEE Transactions on Knowledge and Data Engineering
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Ositech Communications. Archived from 839:UMPC is also a PDA-sized tablet PC; the 567:In-vehicle computing and fleet computing 475:: In contrast to the common traditional 391: 248: 1024: 1631:"Data on Air: Organization and Access" 1446:CompassRose International Publications 490:: As most smart devices lack a proper 1284:G Rowley, K Barker, and V Callaghan “ 1210:from the original on 10 December 2019 1180:from the original on 10 December 2019 1153:from the original on 10 December 2019 7: 1266:from the original on 23 October 2017 154:adding citations to reliable sources 1044:from the original on 5 October 2011 1372:"Wireless Network Industry Report" 645:Security issues involved in mobile 25: 1172:Lindsey, Nicole (10 April 2019). 1145:Hautala, Laura (20 August 2018). 1096:. CBS Interactive. 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(1992). 994:Mobile identity management 754:personal digital assistant 721: 718:Portable computing devices 648: 593:emergency medical services 417:Personal digital assistant 273:human–computer interaction 2494: 1561:Communications of the ACM 1491:SearchMobileComputing.com 969:Lists of mobile computers 924:Satellite Internet access 863:Mobile data communication 1034:"U Drive. U Text. U Pay" 989:Mobile device management 2486:Wireless sensor network 1730:Poslad, Stefan (2009). 1516:The Wall Street Journal 943:) not only handles the 578:mobile computer of 1959 560:handwriting recognition 396:The wearable computer, 283:, mobile hardware, and 2259:Portable data terminal 974:Mobile cloud computing 767: 610: 579: 401: 304: 265: 94:by rewriting it in an 2442:Information appliance 2264:Portable media player 2207:Handheld game console 1749:Rhoton, John (2001). 1575:10.1145/194313.194317 1519:, December 11, 2007. 1468:netmotionwireless.com 761: 688:intellectual property 618:Operating temperature 601: 574: 395: 298: 252: 2217:Mobile data terminal 2197:Electronic organizer 1869:Intelligent terminal 1711:B'Far, Reza (2004). 1604:Proceedings VLDB '92 1414:"Satellite Internet" 1009:Ubiquitous computing 902:. and more recently 686:of the user and the 513:, and more recently 281:mobile communication 150:improve this article 1412:Mitchell, Bradley. 1383:Wireless Nets, Ltd. 823:) in the form of a 680:information systems 2474:Computer-on-module 2332:Digital wristwatch 2134:Mobile workstation 1904:Video game console 1864:Internet appliance 1542:Toxicology Letters 1509:2018-03-28 at the 1504:"Lost Connections" 1485:2020-07-06 at the 1462:2012-03-31 at the 1440:2011-10-23 at the 1399:2012-03-27 at the 1377:2012-10-12 at the 1354:2011-06-07 at the 1332:2013-10-04 at the 1262:. 7 October 2007. 1206:. 14 August 2018. 1100:on 18 January 2013 999:Mobile interaction 984:Mobile development 768: 704:malicious software 611: 580: 402: 400:, released in 2015 382:Wearable computers 314:quality of service 305: 303:42-column version. 266: 165:"Mobile computing" 96:encyclopedic style 83:is written like a 2513: 2512: 2462:Rugged smartphone 2371: 2370: 2367: 2366: 2094: 2093: 2090: 2089: 2048:Small form factor 1874:Interactive kiosk 1779:978-0-07-147733-8 1760:978-1-55558-257-9 1753:. Digital Press. 1741:978-0-470-03560-3 1722:978-0-521-81733-2 1662:10.1109/69.599926 1544:, 2001 - Elsevier 1493:, July 16, 2006. 890:networks such as 742:portable computer 728:Portable computer 712:operating systems 690:of the company. 672:location tracking 606:- circa 1982 pre- 562:require training. 555:have been raised. 441:Wearable computer 412:Portable computer 244: 243: 236: 226: 225: 218: 200: 124: 123: 116: 65: 16:(Redirected from 2543: 2526:Mobile computers 2502: 2501: 2337:Calculator watch 2320:Activity tracker 2105: 1929: 1842: 1835: 1811: 1804: 1797: 1788: 1783: 1764: 1745: 1726: 1679: 1677: 1676: 1670: 1664:. Archived from 1655: 1635: 1622: 1618:Mobile Computing 1608: 1600: 1587: 1577: 1520: 1500: 1494: 1476: 1470: 1454: 1448: 1432: 1426: 1425: 1424:on 26 July 2011. 1420:. 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