Red hat

Red hat (or Red Hat) has several possible meanings:

Within the Roman Catholic Church, red hat refers to the appointment of a Cardinal, a senior Prince of the Church who is a member of the electoral college that chooses the Pope. A person on being appointed to the cardinalate is said to have received the red hat or cardinal's biretta.

Red Hat, Inc. is one of the largest and most recognized companies dedicated to open source software.
- Red Hat Linux is a Linux distribution, which was one of the most popular. It is assembled by Red Hat.
- Red Hat Enterprise Linux is a Linux distribution created by Red Hat and targeted toward the business market.

In Tibetan Buddhism successors to the first Shamarpa are known as the Red Hat lamas.

In the 1985 book Six Thinking Hats by Edward De Bono, the red hat symbolizes opinion and emotion.

The Red Hat Society, Inc. is a women's organization whose full members, who must be over 50 years old, wear red hats and purple dresses. Members are often called "Red Hatters."

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Red hat

See also: Red hat, Biretta, Cardinal (Catholicism), Edward De Bono, Linux distribution, Open source, Pope, Red Hat, Red Hat Enterprise Linux