Don't forget that a printer dot can only be one colour. Consequently, you need to use multiple dots together to create shades of grey or colours. Thus, the effective resolution of a printer is lower than you would think for certain applications. Of course, having crisp 1200 dpi black-on-white text is very nice:-)
700 22.9 -- That means Crusoe is over 23 times cooler and has 23 times longer battery life!
First, one should really be comparing with a Mobile PIII -- that's 5.1 watts for the new SpeedStep PIII running at 500 MHz. See Intel Press Release for the details. So, we're not talking anything like a factor of 23.
Second, don't forget that the processor is only one component of a laptop. For example, a typical TFT LCD screens consumes around 4 watts. Consequently, the overall impact on battery life of a complete system is going to be very much less than you suggest.
Finally, raw CPU clockspeed in MHz also tells us nothing about how much useful work can be done for a given power consumption, so it's not really valid to simply compare power consumption at a given clockspeed without taking other factors into account.
C==vi, C++==emacs (the kitchen sink)
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Java for EGCS
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· Score: 1
"The nice thing about the streams library is that you can easily expand it to handle user defined types"
This is true, but IMO, one of the best things about the streams library is that the compiler determines at compile time which code to call to do the streaming. Used properly, this is vastly more efficient than run-time interpretation of arguments to the printf family of functions.
Another great thing is that the streams library is type safe. That means the compiler does the error checking for you, elminating a whole class of bugs common to printf where arguments are given that don't match the format specification.
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Don't forget that a printer dot can only be one colour. Consequently, you need to use multiple dots together to create shades of grey or colours. Thus, the effective resolution of a printer is lower than you would think for certain applications. Of course, having crisp 1200 dpi black-on-white text is very nice :-)
First, one should really be comparing with a Mobile PIII -- that's 5.1 watts for the new SpeedStep PIII running at 500 MHz. See Intel Press Release for the details. So, we're not talking anything like a factor of 23.
Second, don't forget that the processor is only one component of a laptop. For example, a typical TFT LCD screens consumes around 4 watts. Consequently, the overall impact on battery life of a complete system is going to be very much less than you suggest.
Finally, raw CPU clockspeed in MHz also tells us nothing about how much useful work can be done for a given power consumption, so it's not really valid to simply compare power consumption at a given clockspeed without taking other factors into account.
"The nice thing about the streams library is that you can easily expand it to handle user defined types"
This is true, but IMO, one of the best things about the streams library is that the compiler determines at compile time which code to call to do the streaming. Used properly, this is vastly more efficient than run-time interpretation of arguments to the printf family of functions.
Another great thing is that the streams library is type safe. That means the compiler does the error checking for you, elminating a whole class of bugs common to printf where arguments are given that don't match the format specification.
--
Daniel Neades
www.araxis.com