Accession Number:

AD0870642

Title:

Electronic Systems with Ferrite Memory Blocks,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1970-05-01

Pagination or Media Count:

20.0

Abstract:

In modern digital computers, ferrite core memories are generally used as the ready-access storage. Recent advances in ferrite core production make it possible to design memories with an operating cycle of 1 msec or less and a capacity of tens of thousands of words. The generally-used coincidence system makes greater demands on the cores, but gives great system economy over systems with linearly selective memories. The UMC-10 general-purpose digital computer developed in the Department of Computer Design of the Warsaw Polytechnical Institute uses a ferrite memory 4092 forty-bit words, coincidence system as the rapid-access storage. The present article is limited to a description of the systems which actually control the memory operations, i.e., the switching current generator, the address-selecting system in the storage plate, the readout amplifier channel, the record-readout switch, and the recording forbid current generator. A schematic diagram of the memory and electronic systems is given in a figure.

Subject Categories:

  • Computer Hardware

Distribution Statement:

APPROVED FOR PUBLIC RELEASE