Abstract: An installation of a new operating system on a data processing system can be aborted, wherein an old operating system, which is already resident on the data processing system, can be reused. During the installation of the new operating system, temporary files of the new operating system are built on the data processing system, based on information provided by a user. This information may be provided by voice input. After building the temporary files, the user is given an opportunity to abort the installation. If the user elects to abort the installation, then the temporary files of the new operating system are deleted and use of the old operating system continues. If the user elects to continue with the installation, then the new operating system is installed onto the data processing system.

Abstract: The present invention relates to materials and more particularly to particulate materials suitable for use as thermal spraying powders.There is disclosed a process for the preparation of a particulate material suitable for use as a thermal spraying powder which includes treating a mixture comprising an inorganic substance as a major component (as defined in the Specification) and a sol to gel the sol thereby to form an intermediate material comprising inorganic substance and gel and heating the intermediate material.One example of thermal spraying is plasma spraying.