uptime
The amount of time a computer system or website stays running without failing.
Example: The server has had 99.9% uptime this year.

B114 words · Intermediate
IT vocabulary for everyday software work, including uptime and downtime, the backend and frontend of an app, and the firewall that protects a system when it's deployed.

The amount of time a computer system or website stays running without failing.
Example: The server has had 99.9% uptime this year.

A period when a system, website or machine is not working or available.
Example: Scheduled downtime will affect the site tonight.

The part of a software system that handles data and processing, usually hidden from the user.
Example: A bug in the backend caused the orders to disappear.

The part of a software system that users see and interact with directly.
Example: She redesigned the frontend to make it easier to navigate.

To release new software or an update so that it becomes available for use.
Example: The team plans to deploy the update on Friday.

The gradual release of a new product, feature or update to users.
Example: The rollout of the new app was delayed by a week.

A team or service that provides technical support and answers user questions.
Example: She called the helpdesk when her laptop wouldn't start.

A document that lists the changes, fixes and new features made in each version of software.
Example: Check the changelog to see what the update fixed.

Software or hardware that blocks unwanted access to a computer network.
Example: The company's firewall blocked the suspicious login attempt.

A small software update that fixes a bug or security problem.
Example: IT pushed an emergency patch to fix the login error.

A computer that provides data or services to others.
Example: One server went down and took four departments with it.

An organised collection of information stored on a computer.
Example: The whole database was rebuilt over a single weekend.

The process of identifying yourself to a system.
Example: Every login is recorded whether or not it succeeds.

A written description of a fault in software.
Example: The bug report had no steps to reproduce and sat for a month.
