The symposium 'Ideas Before Their Time: Connecting the Past and Present in Computer Art' examines the ideas and technologies of computer-based art. Many intriguing concepts have emerged in computer art over the past 50 years. Some have been brought to light in the archives examined by the Computer Art and Technocultures Project at Birkbeck and the Victoria & Albert Museum. With the current exhibitions of computer art, 'Decode' and 'Digital Pioneers' ongoing at the V&A, this is a timely look at the area. Speakers from all areas of computer art, including practitioners, curators and historians, discuss the past, present and future of this area.