Abstract: An information processing apparatus (10) includes a display (110), a housing (120), and a wireless relay apparatus (130). A control unit is provided inside the housing (120). The control unit includes, for example, a central processing unit (CPU), and performs various pieces of arithmetic processing and control processing. One example of the control processing is control of the display (110). The display (110) is mounted to the housing (120). The wireless relay apparatus (130) is mounted to any surface in surfaces of the housing (120). As one example, the display (110) and the wireless relay apparatus (130) are each mounted to a side surface of the housing (120).

Abstract: A magnetic recording medium includes a non-magnetic metal primary layer and a thin ferromagnetic alloy layer which are sequentially formed on a non-magnetic substrate in a laminated manner by sputtering. The thin ferromagnetic alloy layer is composed of not more than 15 at % of chromium, not more than 12 at % of platinum, 0.15 to 5.4 at % of a metal element selected from the group consisting of tantalum, hafnium, tungsten, zirconium and niobium, and the balance cobalt. The magnetic recording medium has a coercive force of higher than 1500 Oe and a squareness ratio of higher than 0.85.