* 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.
1. GH Forman, J Zahorjan - Computer, 1994 - doi.ieeecomputersociety.org
2. David P. Helmbold, "A dynamic disk spin-down technique for mobile computing", citeseer.ist.psu.edu, 1996
3. MH Repacholi, "health risks from the use of mobile phones", Toxicology Letters, 2001 - Elsevier
4. Landay, J.A. Kaufmann, T.R., "user interface issues in mobile computing", Workstation Operating Systems, 1993.
5. T Imielinski, BR Badrinath "mobile wireless computing, challenges in data management- Communications of the ACM, 1994 - portal.acm.org
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment