Accession Number:

AD0654401

Title:

DREAC DRUM EXPERIMENTAL AUTOMATIC COMPUTER: OPERATIONAL CHARACTERISTICS AND LOGICAL DESIGN,

Descriptive Note:

Corporate Author:

JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s):

Report Date:

1959-02-02

Pagination or Media Count:

83.0

Abstract:

The report comprises 4 main Sections, labeled I General information II Operational characteristics III Special topics IV Logical design. Section I describes the theory of operation and the number system employed. It also gives details of the drum memory and the AC section. Section II gives a detailed description of the operations performed during each type of command. It also presents a mathematical or symbolic description of the operation of DREAC in all commands. Section III presents special information of the type needed by the programmer. It includes rounding, representation of zero, overflow and the like. Section IV is the bulk of the report. It gives in detail the logical equations which describe exactly the modus operandi of DREAC. Explanations accompany the equations. The explanations are aimed at the reader with more than a cursory acquaintance with logical design. Author

Subject Categories:

  • Computer Hardware

Distribution Statement:

APPROVED FOR PUBLIC RELEASE