Which programming languages are the following made in: Video Codecs like Divx and xvid Router Firmware wifi 802.11b algorithms data compression software like Winzip
Video Codecs are usually written in C or C++. Router firmware is usually some version of BusyBox Linux, so it's a Linux system, which is a lot of C code and some assembly. Algorithms are algorithms. Implementations can be written in any language. Data compression software? For something like WinZip I'd guess C++, but it can be done in any language.