Abstract: An apparatus (and method) is configured to perform an operation on a plurality of items of data. A memory stores data identifying said items. The apparatus generates a list of selected items identifying an item in response to a first selection signal; performs a selection operation to add an item to said list of selected items by: responsive to (a) a first move cursor signal: identifying a first item of said plurality of items stored in said memory; and adding said first identified item to said list of selected items if said item is not already on said list and (b) a second move cursor signal: identifying a second item of said plurality of items stored in said memory; removing said first identified item from said list of selected items. The apparatus adds said second identified item to said list of selected items if said second item is not on said list.

Abstract: Data processing apparatus is disclosed comprising: a sensor module configured to sense a first profile comprised of one or more attributes of an environment of said data processing apparatus; and a classification module configured to assign a prediction factor to each of said one or more attributes of said first profile and to store each said attribute and assigned prediction factor as a stored profile.

Abstract: A method of operating a data processing apparatus and a data processing apparatus are disclosed. A method of operating data processing apparatus comprises receiving a text file comprising a plurality of original text characters and replacing the original text characters with replacement text characters in accordance with a first rule. The replacement text characters comprise fewer text characters than the original text characters. The method further comprises determining whether or not the number of replacement text characters is less than a threshold value, and further replacing the text characters in accordance with a subsequent rule if it is determined that the umber of replacement text characters is not less than the threshold value.