In the realm of software, the term "lightweight" refers to applications or systems designed to consume minimal resources like memory, CPU, and disk space. The core idea is efficiency; lightweight software aims to deliver essential functionalities without overburdening the host system. This makes it particularly valuable for older computers with limited system resources, or for specialized devices such as Internet of Things (IoT) sensors, which may have limited computing power. Despite its minimalistic approach, lightweight software often maintains a high degree of performance, speed, and reliability, making it a versatile option for a broad range of applications.