Smart watches aren't exactly new because they've been around in one form or another since 2004. Apple's introduction of a smart watch in 2015 gave the market a kick start, but only one fifth of US adults currently own one. Women are more likely to have a smart watch than men are. In Short Circuits: Many crypto-currencies have lost significant value in the past several months, but they still have worth. The US Federal Bureau of Investigation says 244 investors lost nearly $43 million worth of crypto-currency in the past six month. The scam has been traced back to a fraudulent app. • Most Wi-Fi routers can transmit signals in the 2.4GHz range and 5GHz range. Some of the newer devices also can communicate in the 60GHz range. Although channel selection is largely automatic in the higher-frequency bands, it's fully manual in the 2.4GHz range. Selecting the wrong channel can reduce your link speeds and those of your neighbors. Twenty Years Ago (only on the website): I was excited about bargain prices for CompactFlash memory cards that were used by some camera manufacturers, but have virtually disappeared now in favor of memory cards that are physically smaller. Twenty years ago, CF cards were the primary choice and 2002's "bargain" prices are laughable now.