35 million books could be stored on a single cartridge made using a new type of storage tape developed by IBM and Fujitsu. Can iPad beat that? Not for some time. This new cartridge has the capacity to hold up to 35TB of uncompressed data. This is about 44 times the capacity of today’s IBM LTO Generation 4 cartridge. A capacity of 35TB of data is sufficient to store the text of 35 million books, which would require 248 miles (399 km) of bookshelves. The biggest bookshop in Europe – Waterstones in Piccadilly, London UK SW1Y 6WW (tel 020 7851 2400) stores about 250 000 books on four floors in over eight and a half miles of shelving.