hello there, have u ever wondered why your laptop chargers are so big? you ask yourself what’s it for anyways? what else do I not know about laptops? one of the first laptop was the Osborne 1 built in 1981, it was heavier than a bowling ball, and its tiny black and white screen was no bigger than a playing card. It also didn’t have a battery , so i t needed to be plugged in, it sounds like anything but a laptop, but the grand pappy of your sleek machine is called portable simply because u can carry it In a case. At the end of the decade we got the ZDS Super sport , it was a big step towards portable computers, this laptop had a built in battery, which could keep your device running for about three hours and had a massive adaptor to recharge the battery. Let’s past through time, laptops became thinner and lighter yet those adaptors stayed bulky. It’s because today’s portable computers requires a certain types of power DC meaning Direct Current, the stuff coming out of ur pow