Itâs rare to be deficient in biotin. Symptoms include hair loss, dry scaly skin, cracking in the corners of the mouth (called cheilitis), swollen and painful tongue that is magenta in color (glossitis), dry eyes, loss of appetite, fatigue, insomnia, and depression.verview. Vitamin H, more commonly known as biotin, is part of the B complex group of vitamins. All B vitamins help the body to convert food (carbohydrates) into fuel (glucose), which is used to produce energy. These B vitamins, often referred to as B complex vitamins, also help the body metabolize fats and protein.
A parallel cable contains one 25-pin connector with pins on one end that plug into your computer's parallel port and a 25-pin connector on the other end that doesn't contain pins that plugs into your printer. You cannot swap the cable's ends, since the cable's ends fit in only one way.
But bear in mind that USB-enabled printers require specific cables to make the connection, and that not just any USB cable will do. The standard type of printer cable in use with todayâs printers is called an AB cable. On one end of the cable, you have a USB-A plug. This is the familiar flat, rectangular end that fits into your computerâs USB port. The other end of the AB cable contains a USB-B plug, which is smaller and square. This is the end that plugs into the printerâs USB port. To be certain, check the printerâs rear or side panel for the presence of a USB-B port.