AKIPRESS.COM - The Queen has posted a photo on the official royal family Instagram account for the first time.

She was applauded after sharing an image of a letter from 19th century inventor and mathematician Charles Babbage to Prince Albert.

The Queen used an iPad to share the photo as she looked at exhibits in the Science Museum's summer exhibition - Top Secret.

During her long reign, the Queen - Britain's longest-reigning monarch - has encountered many technological changes.

She was the first person to have her Coronation filmed when television cameras were allowed inside Westminster Abbey in 1953.

More than half a million extra TV sets were sold in the weeks running up to the historic event.

She has also seen the introduction of colour television, mobile phones and the internet.

View this post on Instagram

Today, as I visit the Science Museum I was interested to discover a letter from the Royal Archives, written in 1843 to my great-great-grandfather Prince Albert. Charles Babbage, credited as the world’s first computer pioneer, designed the “Difference Engine”, of which Prince Albert had the opportunity to see a prototype in July 1843. In the letter, Babbage told Queen Victoria and Prince Albert about his invention the “Analytical Engine” upon which the first computer programmes were created by Ada Lovelace, a daughter of Lord Byron. Today, I had the pleasure of learning about children’s computer coding initiatives and it seems fitting to me that I publish this Instagram post, at the Science Museum which has long championed technology, innovation and inspired the next generation of inventors. Elizabeth R. PHOTOS: Supplied by the Royal Archives © Royal Collection Trust / Her Majesty Queen Elizabeth II 2019

A post shared by The Royal Family (@theroyalfamily) onMar 7, 2019 at 3:31am PST