A desk-top stand for a small hand-held calculator includes a base section, adapted to sitting on a desk top, connected through an adjustable friction swivel joint to a platform member on which the calculator rests. A lock is provided for locking the calculator to the desk top through the swivel connector, the lock including a cable attached to the calculator and removable from the calculator only if the calculator is lifted from its support platform by a predetermined distance. A padlock prevents lifting the calculator this predetermined distance when the calculator is in a locked configuration.