Definition: A type of lipid that consists of glycerol with three fatty acids bound to it. A high triglyceride count in a person's blood is a symptom of diseases such as diabetes. The body needs insulin to remove excess triglycerides from the blood.
Answers: Circuits that require the same voltage are best connected in parallel as the same voltage is applied to all devices. The advantage is that if a device fails the rest of the devices in a circuit still operate.
The bipolar transistor was invented in 1947. From 1955 onwards transistors replaced vacuum tubes in computer designs, giving rise to the second generation of computers. Compared to vacuum tubes, transistors have many advantages: they are smaller, and require less power than vacuum tubes, so give off less heat.