original_query: What is the history of telecommunications in the United Kingdom?
query: What aspects of the history of telecommunications in the UK are covered in this article about Adastral Park?
answer: This article focuses on the history of telecommunications research at Adastral Park, starting with its origins as the Post Office Research Station in the 1970s.  Initially, research covered postal sorting and delivery technology, then shifted to telecommunications after the Post Office split.  The article details the site's renaming and expansion into a high-tech business park.