Linux, apache, sendmail, GNU C library, bind, freeS/wan, and snort are popular open source packages. Search on the Internet to find out the license model for each of them, and summarize the...

Linux, apache, sendmail, GNU C library, bind, freeS/wan, and snort are popular open source packages. Search on the Internet to find out the license model for each of them, and summarize the differences between these license models.

Find the code segment in 8b10_enc.vhd related to the 3B/4B coding switch in Figure 2.14 and show which line of code controls the output timing, i.e., falling or rising edge of the clk signal.