James Sumner

What Makes a PC? Thoughts on Computing Platforms, Standards, and Compatibility

Early microcomputing culture was characterized by a proliferation of other machine-oriented platforms, often aimed at home users. Contemporaneously with Apple, the established electronics firms Commodore and Tandy Radio Shack introduced formulations of the personal computer that long endured, sustained by enthusiastic user communities and vigorous software development cultures. This culture is often characterized as a Babel of incompatible platforms that the IBM PC, offering all the advantages of a consensus standard, rapidly swept out of existence. The actual eclipse of these platforms in international context awaits serious investigation.

Status, scale and secret ingredients: the retrospective invention of London porter

Porter, a dark style of beer that was the staple of London in the eighteenth and nineteenth centuries, is conventionally addressed as a discrete invention, suited to large‐scale production, whose appearance led rapidly to enclosure of the trade by a few industrial‐scale producers. This paper by contrast presents the capitalist industrialization of brewing as co‐extensive with, and reinforced by, the long‐term emergence of a consensus definition of porter; the invention story is a retrospective construct that telescopes a century or more of technical change. Balancing established economic accounts, I address the role of product identity as a rhetorical device. London’s greatest brewers were in part assisted in capturing smaller competitors’ trade by the enshrining of large‐scale production as a ‘secret ingredient’ in its own right, essential to the nature of the ‘true’ product.

Defiance to compliance: visions of the computer in postwar Britain

In a climate of profound uncertainty over Britain’s postwar status, some industrialists and policymakers sought solace in a ‘defiant modernist’ aesthetic, proposing radical technological transformations to circumvent economic constraints. The British computer industry, which briefly challenged that of the USA for technological sophistication, presents a revealing instance of this approach and its limitations. Early promoters, notably Vivian Bowden of Ferranti, shrewdly laid the rhetorical groundwork to position the new machines as the natural outcome of a uniquely British technological trajectory. Into the 1960s, however, their agenda was disrupted not only by economic realities, but also by the increasing importance of software and compatible systems as opposed to individual machines, and by growing public and industrial familiarity with computing in general. Promoters sought new points of differentiation, but had made little headway when a combination of national policy changes, growing market dominance by US-based corporations, and Anglo-French rapprochement rendered the British national exception largely unworkable. Its powerful rhetorical appeal, however, ensured that it never entirely disappeared.