From Caroline Peters, Wokingham, Berkshire, UK
As a retired IT professional, I recognised only too clearly the problems with legacy systems described in the article “Code red” (7 November, p 44).
Computer systems have a life in the same way that vehicles do. We replace cars and lorries regularly to pre-empt serious issues, so why not do the same with computer systems? Invariably, the overriding cause of the rat’s nest you discuss is short-term cost-cutting and a refusal to invest in preventative maintenance and upgrading or replacement until it is too late.
