LXDE and Lubuntu
Lubuntu is  based   on  LXDE,   an  extremely   fast    desktop environment that    uses
less    memory  and fewer   CPU cycles  than    any of  the others  discussed.  It  is
developed   specifically    with    lower-powered   computers   such    as  netbooks    in
mind,   but that    isn’t   the sole    use case.   For example,    Knoppix,    which   is  a   Linux
distribution    that    runs    from    a   live,   bootable    CD  or  DVD,    now uses    LXDE.
Knoppix is  a   longtime    favorite    of  sysadmins   for emergency   repairs of
unbootable  systems and for its portability.    It  recently    switched    from    KDE to
LXDE    to  benefit from    this    lightness   because running an  operating   system
from    a   CD  or  DVD is  generally   much    slower  than    when    it  is  installed   on  a
hard    drive.
As  the focus   in  Xubuntu turned  from    speed   and lightness   to  enjoying    the
flexibility of  Xfce,   a   gap was created.    Users   and developers  interested  in  less-
expensive   hardware,   such    as  mobile  Internet    devices and ARM or  MIPS
processor-based computers,  wanted  to  find    a   way to  run a   distribution    of
Linux   that    shared  the community   of  Ubuntu, that    had a   beautiful   and useful
desktop,    and that    did not get bogged  down    on  slower  machines.   LXDE    is
quite   new,    and its development philosophy  fits    quite   well    with    the hopes   and
dreams  of  these   users,  so  it  seems   a   perfect fit.
The Lubuntu (see    Figure  7.3)    distribution    is  still   very    new.    The developers  are
working within  the Ubuntu  community   and making  consistent  progress,   and
they    are also    appealing   for interested  people  to  join    the development team    and
help    out.    Install lubuntu-desktop from    the Ubuntu  repositories    to  check
it  out.
