According to one embodiment, an electronic device includes: a device main body, a first engage portion; an operation element; and a disengage mechanism. The device main body includes component container detachably housing a component. The first engage portion is provided to the device main body and facing inside the component container, and when the component is housed in the component container, engaged with a second engage portion provided to the component. The operation element is provided on a rear wall of the device main body, the rear wall being a side wall of the device main body provided at a further side of the device main body and extended in a width direction of the device main body. The disengage mechanism moves the first engage portion in accordance with an operation of the operation element to disengage the first engage portion and the second engage portion from each other.