Computer memories

Computer Memories: The History Of Computer Form

This paper looks at the computer as a truly global form. The similar beige boxes found in offices across the world are analysed from the perspective of design history rather than that of the history of science and technology. Through the exploration of an archive of computer manufacturer's catalogues and concurrent design texts, this paper examines the changes that have occurred in the producti...

Coding for a Model of Random-access Memories of a Computer and Write-unidirectional Memories

The OR-NOT operation x _ y between two binary vectors x and y of the same length is viewed as an operation between the new and old content of a random-access memory used to increase the speed of the access to the memory. Coding procedures that allow us to recover x based on x_y are developed and connections of this model of the memory with the model of write-unidirectional memory are established.

The Reliability of Single-Error Protected Computer Memories

+ dl (@be + bcd + bede + ad + ace). Noting that the desired function is to be realized on node 1 of the circuit, the C F of the specification can be obtained [2], [3] as @*= d l f + d l f + DON'T CARE terms = dl (66 + &+ 6@+ 6Cd) + dl (ad+ be+ ace + bcd) + abcde. From [2] and [3],_a circuit realizes its specification iff +* < +S. In other words, @*.a, = 0. That the latter relation is satisfied ...

Memories

Memories Improbable: "Recovered Memories" in Perspective