Abstract: A monitoring arrangement (1) for use with a computer network. The arrangement (1) comprises a filtering module (7) which is operable to filter content delivered to a device connected to the network and to generate filtering data indicative of content filtered by the filtering module (7). The arrangement (1) further comprises a connectivity detection module (6) which is operable to detect the connectivity of a device connected to the network and to generate connectivity data indicative of the connectivity of the device. The arrangement (1) is operable to detect when a new device is connected to the computer network and to examine the new device to determine whether the new device is a trusted device. If the new device is not a trusted device then the monitoring arrangement (1) alerts a user to the attempted access by the untrusted device. The monitoring arrangement (1) is also operable to improve the performance of the computer network.

Abstract: A monitoring arrangement (1) for use with a computer network. The arrangement (1) comprises a filtering module (7) which is operable to filter content delivered to a device connected to the network and to generate filtering data indicative of content filtered by the filtering module (7). The arrangement (1) further comprises a connectivity detection module (6) which is operable to detect the connectivity of a device connected to the network and to generate connectivity data indicative of the connectivity of the device. The arrangement (1) is operable to detect when a new device is connected to the computer network and to examine the new device to determine whether the new device is a trusted device. If the new device is not a trusted device then the monitoring arrangement (1) alerts a user to the attempted access by the untrusted device. The monitoring arrangement (1) is also operable to improve the performance of the computer network.

Abstract: A satellite has a platform of elongated shape in a direction parallel to a roll axis of the satellite. A deployable arm is pivotally carried by a longitudinally extending face of the platform. A solar generator is carried at the end of the arm by a first motor for aiming the generator through a range of 360° about a pitch axis orthogonal to the direction of elongation of the platform. A second motor rotates the solar generator through a limited angular range about an axis that is orthogonal to the pitch axis and parallel to the plane of the generator. The arm, when deployed, moves the solar generator away from on a stored position in contact with the platform in a direction of a yaw axis.