A computing cart (100, 150, 200, 300, 400), comprising: a base comprising a plurality of wheels; and a storage compartment (130, 230, 330, 430, 500) supported by the base, the storage compartment comprising a storage chassis (132, 232, 432, 508) defining at least part of a storage space (270, 470, 510), wherein the storage chassis comprises a front edge and a rear edge, a sliding work surface (120, 220, 420, 505), and a rear cover attached to the storage chassis near the rear of the storage chassis, wherein the work surface is in sliding engagement with the storage chassis over the storage space, the sliding engagement providing the work surface with an open position providing access to at least part of the storage space and a closed position denying access to the at least part of the storage space, wherein the work surface comprises a front edge and a rear edge; wherein the storage space is configured to store equipment when the work surface is in the closed position, wherein the rear cover engages with the work surface in the closed position, wherein the rear cover is above a portion of the storage chassis and defines the top extent of the storage space in that location, and a first strengthening mechanism comprising a second component fixed with respect to the storage chassis and a first component fixed with respect to the work surface, the strengthening mechanism second component located proximate to the rear edge of the storage chassis, the strengthening mechanism first component located proximate to the rear edge of the work surface, wherein the strengthening mechanism first and second components interlock with the work surface in the closed position thereby strengthening the engagement between the storage chassis and the work surface. a base comprising a plurality of wheels; and a storage compartment (130, 230, 330, 430, 500) supported by the base, the storage compartment comprising a storage chassis (132, 232, 432, 508) defining at least part of a storage space (270, 470, 510), wherein the storage chassis comprises a front edge and a rear edge, a sliding work surface (120, 220, 420, 505), and a rear cover attached to the storage chassis near the rear of the storage chassis, wherein the work surface is in sliding engagement with the storage chassis over the storage space, the sliding engagement providing the work surface with an open position providing access to at least part of the storage space and a closed position denying access to the at least part of the storage space, wherein the work surface comprises a front edge and a rear edge; wherein the storage space is configured to store equipment when the work surface is in the closed position, wherein the rear cover engages with the work surface in the closed position, wherein the rear cover is above a portion of the storage chassis and defines the top extent of the storage space in that location, and a first strengthening mechanism comprising a second component fixed with respect to the storage chassis and a first component fixed with respect to the work surface, the strengthening mechanism second component located proximate to the rear edge of the storage chassis, the strengthening mechanism first component located proximate to the rear edge of the work surface, wherein the strengthening mechanism first and second components interlock with the work surface in the closed position thereby strengthening the engagement between the storage chassis and the work surface.