Definition of keyboard for English Language Learners. : 1  a row or set of keys that are pushed to play a musical instrument (such as a piano) : 2  a musical instrument that is played by means of a keyboard like that of a piano and that produces sounds electronically. : 3  the set of keys that are used for a computer or typewriter.
Classless Inter-Domain Routing (CIDR, pronunciation: /ËsaÉªdÉr/ or /ËsÉªdÉr/) is a method for allocating IP addresses and IP routing. The Internet Engineering Task Force introduced CIDR in 1993 to replace the previous addressing architecture of classful network design in the Internet.
CBR Reader. About. CBR Reader is a free *.cbr file reader, the CBR is a very popular comic book archive format, this program can help you to easily open and view these comic book files, it also supports other similar comic format files, such as *.cbz, *.cb7, *.cbt and *.cba files. So, if you are a comic fan, this is a very useful software.