Progesterone is a sex hormone produced in the ovaries. Low levels of progesterone can lead to infertility, uterine bleeding, and other complications. Read more.
Definition of hardware for Students. 1 : things (as tools, cutlery, or parts of machines) made of metal. 2 : equipment or parts used for a particular purpose The computer system needs hardware such as monitors and keyboards.
Before we talk about different types of computers, let's talk about two things all computers have in common: hardware and software. 1  Hardware is any part of your computer that has a physical structure, such as the keyboard or mouse. 2  Software is any set of instructions that tells the hardware what to do and how to do it.