Please note that the content of this book primarily consists of articles
available from Wikipedia or other free sources online. Namazu is a free
full-text search engine software under GPL licence, originally developed
by Satoru Takabayashi. It can work as a scale Web search engine, and
also as a desktop search for email or other files. It is written in
Perl. Computer software, or just software, is the collection of computer
programs and related data that provide the instructions telling a
computer what to do. The term was coined to contrast to the old term
hardware (meaning physical devices). In contrast to hardware, software
is intangible, meaning it "cannot be touched". Software is also
sometimes used in a more narrow sense, meaning application software
only. Sometimes the term includes data that has not traditionally been
associated with computers, such as film, tapes and records.
