The phrase refers to calculating devices characterized by a notably larger physical size than standard models. These devices often feature oversized buttons and a large display screen to enhance visibility and ease of use. Examples include calculators designed for individuals with visual impairments or those requiring greater tactile feedback.
The enhanced usability of these large-format calculating devices is significant. They provide a more accessible interface for individuals with dexterity issues, visual challenges, or simply a preference for larger, more easily manipulated controls. Historically, similar adaptations have been implemented across various technologies to improve accessibility for diverse user groups.