Uses 12 high power LEDs for displaying the clock hands, 6 Blue and 6 Red.For example the time is 2:30 the hour hand will be pointing at the 12 minute mark. The position of the hour hand is also dependent on the minute hand. The blue minute hand increments through each minute and the red hour hand increments through each hour. The purple second hand resets to the zero mark when it’s button is pressed. It is shown starting at 2:40:00.Īnother video (4.7MB) this one shows the clock time being set.Three buttons on the back allow clock adjustment. VIDEOS Watch a video (1.5MB) of the clock in operation!It takes the clock a sew seconds for the speed to stabilize, during this time there is a random pattern of lights that is displayed. The clock that is produced isn’t exactly practical since most hard drives (especially older ones) are too loud for a clock that is to operate 24 hours a day. You will need some electronic knowledge, some common electronic components and a bit of Have an old hard drive that no longer works? As long as it still spins up chances are you could build a clock out of your old hard drive! There are more pictures and videos below. The only magnets that are strong enough to destroy data on your disk platter are those authentic degaussers found in laboratory and junkyard magnets that can distort every bit off your disk and hence your data.The left image is the clock running in the dark, the one on the right is the clock at rest. This does not hold true for domestic magnets that you use to fasten your timetable sheet on your white board. Myth 6: Your hard disk can lose data with a magnet near your computer In fact, format process does not destroy data and most of the time, 100% of data is still recoverable. All the data contents are largely untouched. Myth 5: Data is not recoverable after a reformatĭisk formatting, especially in windows environment, will only delete certain system folders. Hence, server computers that operate 24/7 are kept in well maintained rooms with proper conditioning to keep the machines free from dust and heat. But the truth is, only excessive heat shortens the life of the disk components and adds to thermal stress problems. Most users reckon that the perpetual spinning of the platters kills the disk. From the time you power up your disk, the platters spins continuously till the moment you switch off your computer. Myth 4: Powering the hard disk on perpetually shortens its life Deleted data are simply marked as deleted and is always there until new data take over its place. Technically data retains in your hard disk till the moment you overwrite it with new data. Myth 3: Once data is deleted off your disk, it disappears forever Generally power cuts may just cause logical data corruption. However, severe power surge or unstable power supply could cause electronic or RW head failure which in terms create platter damage or bad sectors. Typically, modern hard disk incorporates certain techniques to park the heads wherever there is a power cut. Myth 2: Can Power cuts causes bad sectors? It simply hides the bad sectors from being accessed by marking the location of bad sectors in a new file allocation table so the operating system will not visit the bad sectors during data storage. The truth is, formatting a hard disk does not repair bad sectors. Myth 1: Formatting a hard disk repair the bad sectors This article will therefore attempt to debunk some of the most popular hard disk myths and reveal to you what's real and what's not! Take a ride! Gradually, as hearsay escalates and finds its way into discussion forums and newsgroups, false legends soon become a made-belief. Sometimes certain experiences over a computer procedure or problem can result in self-perceived conclusions. Ever since personal computers become the daily common household items, there has been much misunderstanding about the hard disk, the place where all data is stored.
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