HC Deb 04 December 1996 vol 286 c655W
Mr. Campbell-Savours

To ask the Chancellor of the Exchequer on how many occasions and in what locations mainframe systems of the Inland Revenue have crashed, preventing end-user logging, [1636]

Mr. Jack

[holding answer 11 November 1996]The Inland Revenue's mainframe computer systems have on average operated at over 99 per cent. availability over the last 12 months.