about project

Design them so that they are resilient to brief power interruptions. 1 to

60 second power interruptions in many locations are frequent and require re-programming of clocks ... a huge pain in the butt!

Hi, Arun. Your best bet will be going to your department advisor with this question, or to the teacher of the Senior Projects class. Either one will be happy to spend a few minutes with you, giving ideas about potentially successful projects.

Good luck Chris

Final year? We're all doomed. :-( How does someone spend three years in school, allegedly learning about electronics _and_ computers, and then ask a question like this? I know this is SEB and all, but geez.

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Ever heard of a real-time clock?

Which fails during a momentary power outage? Battery backup is non-existent in many consumer devices. They (the manufacturers) can't even bother to include a decent energy storage capacitor on the dc supply circuit to smooth out interruruptions of several seconds. The modern answering machine is a prime example. The clock/calendar is mostly wrong. Here, in the septic system where I live and swim, the power fluctuates (drops out for a second or two) at least once a week and scrambles the clocks on the oven, the microwave, and the answering machine.

If I designed and sold annoyingly loud and useless guitar amplifiers, I suppose I could understand this at a much deeper level. But, only a very few of us are so gifted.

I think that "real-time clock" was a reference to devices like the Dallas Semiconductor clock modules, which included a lithium cell big enough to keep the clock alive for several years. Do computer manufacturers still use those?

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Obviously. it appears you don\'t even know what a real-time clock is.

Here:

http://datasheets.maxim-ic.com/en/ds/DS1307.pdf

BTW, what\'s the reference to "annoyingly loud and useless guitar
amplifiers" about?

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Dunno, but I do!

last one I used was a Dallas DS1307 on a medication dispensing
machine.

RTCs are well understood. Thanks for the link, in any case.

Look up "metaphor."

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You\'re welcome, but your amplitude reference to "annoyingly loud and
useless guitar amplifiers"  hasn\'t yet been defined.

Would you like to continue?