The computer and UPS communicate through a serial or USB cable. Otherwise, the sudden loss of power can lead to loss of data. In the case of these longer outages, the function of the modern UPS is to notify the computer to power down before the UPS runs out of battery power. Unfortunately, there were no Uninterruptible Power Supply (UPS) systems to keep my PC up and running through these annoying and sometimes destructive incidents.Ī UPS keeps a computer running long enough to last through minor power events, such as outages and surges of a few seconds up to as much as 20 or 30 minutes. The short but frequent power outages caused me to lose my work more than once. I did this work in Boca Raton, Florida, where the small, local power company was commonly known as "Florida Flicker and Flash," with good reason. To complete the course in time for the IBM, ComputerLand, and Sears training, IBM gave me a PC to take home so I could work over evenings and weekends-arguably the first instance of anyone having an IBM PC in their home. Welcome to the communityīack in the early days of personal computers, I wrote the IBM training course for the original IBM PC.
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