ESX is the short-hand term for the VMware ESX software product. It is an
organisational-level product that was developed by VMware Inc in 2017.
Its result for the end-user is sever virtualisation, working without the use of an existing operating system on the computer, and offering a fast and efficient way to manage the several elements of the business. ESX is an embedded hypervisor software that has two products available on the market: ESX Server and ESXi Server.
VMware is one of the largest organisations in the world, creating a variety of software and products for virtualisation, helping to make the IT infrastructure within businesses more reliable, adaptable and manageable.
VMWare ESX allows a single physical server to run several virtual machines at the same time, a particularly useful service for large organisations. IT professionals will utilise this software, or a similar product, within their work, particularly if they work within bigger enterprises.