New York: IBM, 1964. 1st Edition. APRIL 1964 FIRST EDITION OF THE FIRST SEPARATION OF ARCHITECTURE FROM DESIGN, THE FIRST DESCRIPTION OF IBM'S FLAGSHIP BUSINESS COMPUTER, IBM SYSTEM/360 (S/360) BY ITS ARCHITECT. IBM System/36- "was the first family of computers designed to cover the complete range of applications, from small to large, both commercial and scientific. The design made a clear distinction between architecture and implementation, allowing IBM to release a suite of compatible designs at different prices" (Wikipedia). "The term 'computer architecture' was coined by IBM in 1964 for use with the IBM 360. Amdahl, Blaaus, and Brooks  used the term to refer to the programmer-visible portion of the instruction set. They believed that a family of machines of the same architecture should be able to run the same software. Although this idea may seem obvious to us today, it was quite novel at the time. IBM, even though it was the leading company in the industry, had five different architectures before the 360. Thus, the notion of a company standardizing on a single architecture was a radical one. The 360 designers hoped that six different divisions of IBM could be brought together by defining a common architecture. Their definition of 'architecture' was 'the strucutre of a computer that a machine language programmer must understand to write a correct (timing independent) program for that machine" (Hennessy, Computer Architecture, 1-2). Item #338
CONDITION & DETAILS: New York: IBM. Quarto [11 x 8 inches; 275 x 200mm]. Bound in original wraps and housed in three-quarter custom maroon cloth clamshell case; brown gilt-lettered calf at the spine. Full issue. The clamshell case is pristine and the journal is in near fine condition.