Abstract: A data lookup method and apparatus enables a number of users with portable wireless devices, such as WAP phones, to conveniently access a sorted data list such as a telephone directory. The sorted list is divided into a number of sub-lists, and the user is sent information indicating the range of data in each of the sub-lists. The user then selects the sub-list that contains the required data item. The selected sub-list is then divided into a number of smaller sub-lists, allowing the user to make a further selection, and so on until the number of entries in the selected sub-list is less than or equal to the number of lines that can be conveniently displayed on the user device. The user can then select the required item. Thus, the user does not have to indicate what is being looked for, merely make selections.

Abstract: A data lookup method and apparatus enables a number of users with portable wireless devices, such as WAP phones, to conveniently access a sorted data list such as a telephone directory. The sorted list is divided into a number of sub-lists, and the user is sent information indicating the range of data in each of the sub-lists. The user then selects the sub-list that contains the required data item. The selected sub-list is then divided into a number of smaller sub-lists, allowing the user to make a further selection, and so on until the number of entries in the selected sub-list is less than or equal to the number of lines that can be conveniently displayed on the user device. The user can then select the required item. Thus, the user does not have to indicate what is being looked for, merely make selections.

Abstract: A computer has a memory storing a number of software applications, and a registration file, indicating which application versions are currently installed in the memory. A software update mechanism in the computer accesses a remote file server to obtain a release file containing a list of software applications available from the remote server, and compares the release file with the registration file to determine which of the installed applications have upgrades available. When a user selects an application for upgrading, and the update mechanism accesses the remote file server to obtain a manifest file containing details of the application files required to form an updated version of this applications. The manifest file is used to determine which of the required application files are already available in the computer; and only those application files that are not already available in the computer are accessed and installed in the memory.