A sensor that simply detects and responds to some type of input from the physical environment.

A routine audit required of merchants that process credit card transactions to ensure compliance with the Payment Card Industry Data Security Standard (PCI DSS) set up by various credit card companies.

An information security standard for organizations that handle credit cards from the major card schemes. It is a set of requirements intended to ensure that all companies that process, store, or transmit credit card information maintain a secure environment.

A direct communication between two participants in a system – can be computer to computer or person to person.

A simulated cyberattack performed on a computer system to check for vulnerabilities. Penetration testers use the same tools, techniques, and processes as attackers to find and demonstrate the business impact of system vulnerabilities.

A signal or communication that optimises behaviour of an entire group of robots.

A sensor that uses light (often infrared) to detect the presence of an object or the distance to it.

An electronic switching and current amplification component that relies on exposure to light to operate.

Rotation around the side-to-side axis.

An information security (infosec) component that enables and manages special or privileged access for users as compared to standard users. PAM reduces the attack surface for organizations and mitigates the risks that arise both from external attacks and internal negligence.

A set of coded commands that tells the machine what tasks to perform autonomously.

A type of linear feedback control system in which a correction is applied to the controlled variable, and the size of the correction is proportional to the difference between the desired value and the measured value.

A type of controller in a control system whose output varies in proportion to the error signal as well as with the derivative of the error signal.

A strategy where the controller output is an amount proportional to the error plus an amount due to the integral of the error. Also known as P+I control.

The tracking mechanism where every single change made to the original data is tracked so that users can be certain about its legitimacy.

Public Key: A large numerical value used to encrypt data. It is a cryptographic code paired with a private key to receive cryptocurrency.

Private Key: A string of letters and numbers that acts like a password to grant a cryptocurrency user ownership of the funds at a given address.

A record-keeping system that maintains participants' identities in secure and pseudo-anonymous form. It is a synchronized database accessible across different sites and geographies by multiple participants.

A technique to reduce the average power delivered by an electrical signal by chopping it up into discrete parts.