In American English, program is the correct spelling. In Australian English, program and programme are both acceptable. In British English, programme is the prefered spelling, although program is often used in computing contexts.
Decades ago, program appeared in American and British writing. In the nineteenth century, the Brits started to favor the French way of spelling it—programme. However it’s spelled, it means a plan of actions, activities, or procedures, usually for a specific purpose. Alternatively, it can refer to a list of acts or performers associated with an event, such as a theatrical play or a concert. Program can also function as a verb. It means to set, regulate, or modify to produce a specific result. When referring to writing code, both British and Americans use program as the preferred spelling.
Program in the US
Program and Programme Outside the US
Do you find it easy to tell the difference between program and programme? It’s fun to discover the differences between American and British English. Why not check out this article about the past tense of the verbs learn and label?
from Grammarly Blog https://www.grammarly.com/blog/program-programme/