Color symbolism in art and anthropology refers to the use of color as a symbol in various cultures. There is great diversity in the use of colors and their associations between cultures and even within the same culture in different time periods. The same color may have very different associations within the same culture at any time. Diversity in color symbolism occurs because color meanings and symbolism occur on an individual, cultural and universal basis. Color symbolism is also context-dependent and influenced by changes over time. Symbolic representations of religious concepts or articles may...

The red/black concept, sometimes called the red–black architecture or red/black engineering, refers to the careful segregation in cryptographic systems of signals that contain sensitive or classified plaintext information (red signals) from those that carry encrypted information, or ciphertext (black signals). Therefore the red side is usually considered the internal side, and the black side the more public side, with often some sort of guard, firewall or data-diode between the two. In NSA jargon, encryption devices are often called blackers, because they convert red signals to black. TEMPE...

Black is the darkest color, the result of the absence or complete absorption of visible light. It is an achromatic color, a color without hue, like white and gray. It is often used symbolically or figuratively to represent darkness, while white represents light. Black and white have often been used to describe opposites such as good and evil, the Dark Ages versus Age of Enlightenment, and night versus day. Since the Middle Ages, black has been the symbolic color of solemnity and authority, and for this reason is still commonly worn by judges and magistrates.Black was one of the first colors used...

Site Reliability Engineering (SRE) is a discipline that incorporates aspects of software engineering and applies them to infrastructure and operations problems. The main goals are to create scalable and highly reliable software systems. According to Ben Treynor, founder of Google's Site Reliability Team, SRE is "what happens when a software engineer is tasked with what used to be called operations." == Roles == A Site Reliability Engineer (SRE) will spend up to 50% of their time doing "ops" related work such as issues, on-call, and manual intervention. Since the software system that an SRE oversees...