SPEDTAC : a digital computer for instructional use Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/47429c52w

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  • The impact of the electronic computer on the teaching of mathematics, science, and engineering has created the need for a relatively low cost instructional digital computer. SPEDTAC (stored Program Educational Digital Transistorized Automatic Computer) was designed specifically to fulfill this need. The prototype described is a serial, solid state, single address, binary type stored program digital computer. The magnetic disc memory has a capacity of 256 thirteen bit words, with an average access time of 8.3 milliseconds. Registers are implemented from transistor flip-flops, and the diode-transistor NAND circuit is the principal logical gating element. Stroke and dagger functions are used to describe the logical design equations. PIug in printed circuit cards and a built in marginal testing facility provide ease of maintenance. There are no special cooling or power requirements. The computer has a repertoire of sixteen basic instructions which permit the handling of a wide variety of arithmetic and logical problems. A variety of programs and subroutines have been prepared and tested. Operation over a period of a year has shown reliability and results in the classroom to be good. Recommendation is made that consideration be given to doubling the word capacity of the memory in future models.
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  • File scanned at 300 ppi using Capture Perfect 3.0 on a Canon DR-9050C in PDF format. CVista PdfCompressor 5.0 was used for pdf compression and textual OCR.
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  • description.provenance : Approved for entry into archive by Katy Davis(kdscannerosu@gmail.com) on 2014-05-30T15:51:58Z (GMT) No. of bitstreams: 1 FulmerAllen1964.pdf: 5360672 bytes, checksum: fa0136ba00a6efd796ac06cce5e4e09d (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2014-05-30T15:05:05Z (GMT) No. of bitstreams: 1 FulmerAllen1964.pdf: 5315491 bytes, checksum: e9a85d1637caeab906896849f3d7ac21 (MD5)
  • description.provenance : Made available in DSpace on 2014-06-02T21:57:57Z (GMT). No. of bitstreams: 1 FulmerAllen1964.pdf: 5360672 bytes, checksum: fa0136ba00a6efd796ac06cce5e4e09d (MD5) Previous issue date: 1963-08-02
  • description.provenance : Submitted by Georgeann Booth (gbscannerosu@gmail.com) on 2014-05-30T15:47:30Z No. of bitstreams: 1 FulmerAllen1964.pdf: 5360672 bytes, checksum: fa0136ba00a6efd796ac06cce5e4e09d (MD5)
  • description.provenance : Submitted by Georgeann Booth (gbscannerosu@gmail.com) on 2014-05-29T22:02:28Z No. of bitstreams: 1 FulmerAllen1964.pdf: 5315491 bytes, checksum: e9a85d1637caeab906896849f3d7ac21 (MD5)
  • description.provenance : Rejected by Patricia Black(patricia.black@oregonstate.edu), reason: Replace on 2014-05-30T15:30:15Z (GMT)
  • description.provenance : Approved for entry into archive by Katy Davis(kdscannerosu@gmail.com) on 2014-06-02T21:57:57Z (GMT) No. of bitstreams: 1 FulmerAllen1964.pdf: 5360672 bytes, checksum: fa0136ba00a6efd796ac06cce5e4e09d (MD5)

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