What is a System Administrator?

A system administrator, also known as a sysadmin or admin, is an individual tasked with maintaining, configuring, and ensuring the smooth operation of computer systems, particularly those that support multiple users, such as servers.

The primary objective of a system administrator is to guarantee that the managed computers meet user requirements in terms of uptime, performance, resources, and security, all within a predefined budget. Their responsibilities encompass monitoring, optimization, troubleshooting, and implementing necessary measures to uphold the efficient functioning of computer systems.