Abstract: The process of designing a radio system can be complex and often involves many project tradeoffs. Witha lIttle insight, balancing these various characteristics can make the job of designing a radio system easier. Thistutorial explores these tradeoffs and provides details to consider for various radio applications. With a focus on theindustrial, scientific, medical (ISM) bands, the subjects of frequency selection, one-way versus two-way systems,modulation techniques, cost, antenna options, power-supply influences, effects on range, and protocol selectionare explored.
A windows BMP file is a common image format that Java does not handle. While BMP images are used only on windows machines, they are reasonably common. Reading these shows how to read complex structures in Java and how to alter they byte order from the big endian order used by Java to the lIttle endian order used by the windows and the intel processor.
Although there has been a lot of AVL tree libraries available now, nearly all of them are meant to work in the random access memory(RAM). Some of them do provide some mechanism for dumping the whole tree into a file and loading it back to the memory in order to make data in that tree persistent. It serves well when there s just small amount of data. When the tree is somewhat bigger, the dumping/loading process could take a lengthy time and makes your mission-critical program less efficient. How about an AVL tree that can directly use the disk for data storage ? If there s something like that, we won t need to read through the whole tree in order to pick up just a lIttle bit imformation(a node), but read only the sectors that are neccssary for locating a certain node and the sectors in which that node lies. This is my initial motivation for writing a storage-media independent AVL Tree. However, as you step forth, you would find that it not only works fine with disks but also fine with memorys, too.
Far too many programmers and software designers consider efficient C++ to be an
oxymoron. They regard C++ as inherently slow and inappropriate for performancecritical
applications. Consequently, C++ has had lIttle success penetrating domains such
as networking, operating system kernels, device drivers, and others.
Displays CPU time usage, the list of processes (can be terminated) and the task which are running (can be close or switch to). Plus a lIttle net traffic monitor and a disk status report.
Micro In-System Programmer Brief Installation Notes
Enter the src directory.
If uisp does not compile successfully, add switch -DNO_DIRECT_IO in the
Makefile to remove support for direct I/O port access (that may be
necessary on non-PC architectures). Parallel port access should still
work if you have the Linux ppdev driver (patch for 2.2.17 is in the
kernel directory, ppdev is standard in 2.4 kernels). Please lobby
Alan Cox to include this tiny lIttle driver in 2.2.x too :).
To make it type:
make
and to install it:
make install
If you have any further doubts, please consult UISP s homepage:
http://www.nongnu.org/uisp/
