Hi Joseph,
Thank you as well for your comments about battery life.
Hope you do well on your finals too.
Linda
----- Original Message -----
From: Joseph Lee <[email protected]
To: 'braille note' <[email protected]
Date sent: Fri, 30 Oct 2009 21:11:22 -0700
Subject: [Braillenote] Some answers and comments to recent
threads...
Hi,
The stress of midterm is over (at least, for now, but I need to
work out how
would I play around with C++ and perform calculus experiments.).
I couldn't
go out to get some candy because I am sick (well, you know what I
mean,
which occurs around this time of year.). Anyway, here are some
comments and
answers to some recent posts on this list:
.. Battery life: I think a good time to replace the
battery is once a
year or about twelve to fifteen months. Last time I heard, it
costs 87
dollars. As for battery life in general, it depends on what you
are doing.
If you use more and more features of BrailleNote, more power is
needed -
thus leading to shorter battery life. Some suggestions include
turning off
wireless devices - Bluetooth and WiFi off when you are not using
it,
removing external storage or accessory devices when not using
them and so
forth.
.. DLL's and EXE's: DLL is short for Dynamic Link
Library, a form of
shared library (where multiple applications use it for various
tasks). A
library can be thought of as a representative or a worker that
provides
necessary services or tasks that a standalone applications need,
such as
device drivers, dll's for specific tasks e.g. media playback
tasks and so
forth. Even though one can replace a DLL, if done at wrong
times, it could
render the programs that depend on it "crash" or unusable. This
is
especially important for device drivers - how could an operating
system or a
program use hardware if it does not know what to do with it, and
if the
representative that tells the program what the hardware is (in
this case, a
device driver) is not present or is different from what it was
used to? I
can tell you (especially for Dominique) that changing anything in
Windows
folder on the KeySoft System Disk carries some risks - especially
if KeySoft
does not work or behaves in an odd way. This is the reason why I
always put
"cautionary notes" to tasks that involve files in this folder -
otherwise,
you have a keyboard and a display with no functionality at all
(in worst
case scenarios). Hope it answers some questions for you - let me
know if it
did not or if it was either incorrect or not simple enough.
.. Some book recommendations: Some suggestions for
further
invesztigation using books. For anyone who is interested about
embedded
systems development, such as BrailleNote, check out "Programming
Embedded
Systems using C and C++" (O'Reilly Books, 1999), available at
Bookshare
website. For an easy-to-understand book on writing C++ programs,
check out
"C++: A Dialogue" by Steve Heller or "Practical C++ Programming"
(Oualine,
Steve. O'Reilly Books, 2003) (the latter is located at Bookshare
website). I
hope those books would serve as a handy resource for you.
Hope these helps.
Cheers,
Joseph
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