History of Computers. Tori Harbin 3 rd period. Who invented the first computer?. 1837 Charles Babbage, a British professor of mathematics, had an idea for Analytical Engine, the first stored-program mechanical computer. Charles Babbage is known as the “Father of Computing”.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Macs have generally used less energy than PC's, though I haven't tested any Macs since Apple made the switch to Intel processors. If any Mac users would like to send me their readings, tested with a watt-hour meter, I'll be happy to publish the numbers here.Below is how much energy Dell computers use, according to their website in 2006, and how much my Apple iMac G5 uses based on my measurements. I would have included some HP desktops in the table but HP hasn't bothered to update its website with the energy consumption for current models in over four years. For Dell models not listed below try a Google search using this format: site:dell.com b110 watts Replace the "b110" with the model you're searching for, of course.Don't write to me to ask me how much your particular computer uses, because I didn't make your computer and unlike you, I don't have access to it. Contact the manufacturer or buy a watt-hour meter.Dell DesktopsMaximumMinimumSleepOffDimension B110 (Pentium 4 520)112603.01.7Optiplex GX620 (Pentium 4 630)127721.32.5Dimension E310 (Pentium 4, 2.8GHz)132711.71.7Optiplex 170L (Pentium 4, 3.2GHz)163803.72.2Dimension E510 (Pentium 4 551)1651061.30.7Dimension XPS 6002001425.54.5Dimension XPS 400 (Pentium 4 551)2581492.01.0 Apple iMac G5 w/built in 20" LCD screenDoing nothing97 wattsMonitor dimmed84 wattsMonitor sleep62 wattsCopying files110 wattsWatching a DVD110 wattsOpening a bunch of pictures120 wattsComputer sleep3.5 watts