Linearity is a mathematical concept that refers to a straight line relationship between two variables. In other words, as one variable increases, the other variable increases or decreases in a directly proportional manner. Linearity is a key concept in many areas of mathematics, including algebra, geometry, and calculus. What is linearity in measurement? Linearity in … Read more

Boot sector

A boot sector is a small region of a storage device that contains code used to boot an operating system. This code is typically stored in a reserved area of the device, and the boot sector may also contain other information used by the boot process, such as a partition table. When a computer is … Read more

Computer operator

A computer operator is responsible for the operation of computer systems, including hardware, software, and networks. They may also be responsible for the maintenance and troubleshooting of computer systems. Computer operators typically work in a computer lab or office environment. What is a computer operator called? The term “computer operator” is used to describe someone … Read more


A neutrino is an electrically neutral, weakly interacting elementary particle with a half-integer spin (i.e., fermion). It is classified as a lepton. Its mass is much smaller than that of the other particles of the Standard Model. The neutrino is the lightest known lepton. Neutrinos are created by various radioactive decays, such as those of … Read more

Earth’s mean orbital speed

Earth’s mean orbital speed is the speed at which Earth orbits the sun. It is about 29.78 kilometers per second, or about 107,000 kilometers per hour. Is the Earth’s orbital speed constant? The Earth’s orbital speed is not constant. It varies depending on the Earth’s position in its orbit around the sun. The Earth’s orbital … Read more


Archie is a tool for searching FTP sites for specific files. It was developed in 1990 by Peter Deutsch, Allan Schersten, and Alan Emtage, students at McGill University in Montreal, Quebec, Canada. What is Archie’s story? Archie’s story is a heart-warming tale of a little dog who overcame great odds to find his forever home. … Read more

User group

In computing, a user group is a type of computer user group that meets periodically to discuss issues related to a particular technology, usually related to a particular vendor’s products. They are usually independent of the vendor, and are organized by users. User groups started in the 1960s as a way for users of early … Read more

LZW compression

LZW compression is a data compression algorithm that is used in many file formats, including GIF and TIFF. It is named after its developers, Abraham Lempel, Jacob Ziv, and Terry Welch. LZW compression works by creating a dictionary of strings that are used in the input data. When a string is not in the dictionary, … Read more


An attosecond is a unit of time equal to 10−18 seconds. It is derived from the unit prefix “atto-“, meaning 10−18, and the unit of time second. The attosecond is a relatively new unit, and has been used in various fields of science and technology. One of the most notable examples is in attosecond laser … Read more


A webmaster is a person responsible for maintaining one or more websites. The duties of a webmaster typically include ensuring that the website is available and accessible, and ensuring that the site remains relevant and up-to-date. A webmaster may also be responsible for managing website content, performing website updates, and monitoring website traffic. What is … Read more