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Mobility Equipment
Mobile computing is a generic term describing one's ability to use technology 'untethered', facilitated by devices which provide mobile computer functionality. more...
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Many types of mobile computers have been introduced since the 1990s, including the:
Personal digital assistant;
Enterprise digital assistant;
Smartphone;
UMPC;
Technical and other limitations of mobile computing
Insufficient bandwidth;
Sufficient bandwidth is necessary for the widespread use and it must be inexpensive. It took years for technologies like 3G and Wifi to establish and still the coverage is very limited, inherently causing limited usability of mobile devices.
Security standards;
When working mobile one is dependent of third party networks, this makes one vulnerable to unwanted access.
Power consumption;
Batteries with long life are needed for mobile computing. One of the biggest technological challenges is to constantly improve the durability of mobile power supply in order to cope with the demand of improvement.2
Transmission interferences;
Weather and terrain problems as well as distance-limited connection exist with some technologies. Reception in tunnels and some buildings is poor.
Potential health hazards;
Potential health damage from cellular radio frequency emission is not known yet. However, more car accidents are related to drivers who were talking through a mobile device. Also, cell phones may interfere with sensitive medical devices.
Human interface with device;
Screens and keyboards are too small, uncomfortable and tedious for many people to use.
GH Forman, J Zahorjan - Computer, 1994 - doi.ieeecomputersociety.org;
David P. Helmbold, "A dynamic disk spin-down technique for mobile computing", citeseer.ist.psu.edu, 1996;
MH Repacholi, "health risks from the use of mobile phones", Toxicology Letters, 2001 - Elsevier;
Landay, J.A. Kaufmann, T.R., "user interface issues in mobile computing", Workstation Operating Systems, 1993.;
T Imielinski, BR Badrinath "mobile wireless computing, challenges in data management- Communications of the ACM, 1994 - portal.acm.org;
Mobile computing: in-vehicle computing and fleet computing
Many commercial field forces deploy a ruggedized portable computer such as the Panasonic Toughbook 29 (Toughbook is the trademarked brand name owned by Matsushita Electric Industrial and marketed by their international brand name Panasonic. Toughbook refers to its line of semi-rugged and rugged laptop computers. In 2005, Panasonic added the Toughbook Arbitrator mobile digital camera and mobile digital video recorder (DVR) system to their line. Toughbooks are commonly used by public safety (police, fire and emergency medical services), utilities, field service, construction, and military personnel.) with their fleet of vehicles. This requires the units to be anchored to the vehicle for driver safety, device security, and user ergonomics(Ergonomics is commonly thought of as how companies design tasks and work areas to maximize the efficiency and quality of their employees’ work.). The rugged laptops are rated for severe vibration associated with large service vehicles and off-road driving, and harsh environmental conditions of constant professional use such as in EMS, fire and public safety.
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