Smart Phone and Next Generation Mobile Computing

240 Smart Phone and Next-Generation Mobile Computing

Sometimes installing a new operating system on a device designed

to run a different operating system can be extremely difficult and

dangerous, because it can render the device unusable due to hard-

ware failure. On the other hand, in order to improve developer

productivity and mobile code security, people are free to choose

a virtual-machine-based, managed software development platform

such as J2ME and .Net Compact Framework. (Managed code is exe-

cuted within a software execution environment, which is responsible

for enforcing type-safe execution, memory management, and code

security.) A comparison between J2ME and .Net Compact Framework

is presented in the last section of this chapter.

4.8 BREW

Binary ...