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New in the collection : 'BRIZ 30' tablet
  on 2013/1/9 4:35:01

The 'BRIZ 30' tablet was manufactured in Device-manufacturing Factory - Petrich and is new addition to our collection. It is used to digitize graphical information such as charts and drawings into the computer and control CAD software.
The tablet has working area of 270mm. X 270mm., low resolution of 0,1mm. and high resolution of 0,025mm. The computer connection is standard RS232C interface.

New in the collection : ISOT A505E 5.25" Controll diskette
  on 2012/9/13 8:10:00

The ISOT A505E 5.25" control diskette is used to adjust some parameters of the 5.25" floppy disk drives ISOT 5050 (ES 5088) or any other compatible floppy disk drives. It is used to perform radial adjustment of the read head and tangential adjustment of the index detector.

New in the collection : Proffecional computers - an Isotimpex brochure
  on 2012/9/9 16:00:00

Russian language brochure of the professional computers line of ISOT, exported to soviet market by ISOTIMPEX.
The following models are pesented: ISOT 1031S (SM 1901), ISOT 1036 (ES 1831) and ISOT (ES 1832),as well as the company local area network 'ISOTRING', based on ISOT 8502S communication adapter.

New in the collection : Chess compter 'PARTNER' made by 'SPS'
  on 2012/9/5 16:15:37

Bulgarian Chess compter 'PARTNER' made by 'Software Products and Systems' It is based on 3MHz 65C02 CPU and has 16kB ROM and 2kB RAM. The gameplay could have 9 levels of difficulty. A problem solving mode with 3 level of difficulty is also available.

News : Bulgarian made expansion cards for Pravetz 82 catalog
on 2012/8/9 15:03:27

I have started collecting data about bulgarian made expansion cards for Pravetz 82 and compatible computers. The goal is to prepare a catalog with the revisions of each card, photos, and where necessary - information about connecting and using the card.

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