computer tool:
... a contrivance that facilitates a specific operation
within a ... programmable electronic machine that
performs high-speed mathematical or logical operations or that assembles,
stores, correlates, or otherwise processes information (source
of quote).
A tool
bar is likely to be available with one or more
applications on your computer. The following .network navigation
bar is computer tool. Click
your mouse on it to see three file-folder-graphics added which are
each,
in turn, linked for entering a website of The Network. The
basic navigation bar is a tool. The file folders are tools. All contrivances
to aid navigation.
  
Computer tools are also devices designed especially for working for
working on computers.
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![.network logo [introduction]](../../../images/nwlemb130.gif){kind=small}
