Calendar

A calendar is a system of organizing days. This is done by giving names to periods of time, typically days, weeks, months, and years. A date is the designation of a single, specific day within such a system.

Chemists

A chemist is a scientist trained in the study of chemistry. In Commonwealth English, pharmacists are often called chemists.

Computer Network

A computer network is a set of computers sharing resources located on or provided by network nodes.

Computer Scientists

A computer scientist is a person who has acquired the knowledge of computer science, the study of the theoretical foundations of information and computation and their application. A primary goal of computer scientists is to develop or validate models, often mathematical, to describe the properties of computer-based systems.