Ivel Ultra

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The Ivel Ultra is an 8-bit Croatian Apple II compatible computer designed by Branimir Makanec and developed by Ivasim Electronika in the 1984s.[1][2][3][4][5][6]

It was produced in two different versions: the first version has a brown case and ran from 1984 to 1986, the second has a white case and ran from 1987 to 1990.

The machine was equipped with one or two 5.25" floppy disk drives. It came with an Apple I compatible BASIC language.[2] The operating system, called IDOS, is compatible with Apple DOS 3.3.

The Ivel Ultra could be equipped with a second Zilog Z80 processor, in order to offer compatibility with the CP/M operating system.

File:Ivel Ultra Model 1.jpg
Ivel Ultra model 1

Specifications

  • CPU: MOS Technology 6502 at 1 MHz
  • ROM: 12 KB (BASIC language interpreter and machine language monitor)
  • RAM: 64 KB
  • Graphic mode: 280 x 192 pixels, 6 colors
  • Text mode: 40 x 24
  • Operating system: IDOS, compatible with Apple DOS 3.3, CP/M (with an added Z80 CPU)

References

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