Orao (computer)

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Orao (en. Eagle) was an 8-bit computer developed by PEL Varaždin in 1984. It was used as a standard primary school computer in Croatia from 1985 to 1991.

Orao (code named YU102) was designed by Miroslav Kocijan to supersede Galeb (code named YU101). The goal was to make a better computer, yet with less components, easier to produce and less expensive. Originally the Motorola 6809 microprocessor was planned for the CPU but was abandoned for MOS 6502 due to its significantly lower cost.

[edit] Specifications

• CPU: MOS Technology 6502 at 1 MHz
• Read-Only Memory: 16 KiB (with BASIC interpreter and Machine code monitor)
• RAM: 16 KiB (expandable to 32 KiB)
• Graphics: monochrome 256x256 pixels, in up to 8 shades
• Text mode: 32 lines with 32 characters each
• Sound: single-channel, 5 octaves through built-on loudspeaker
• Computer keyboard: 61-key QWERTZ
• I/O ports: video and RF TV out, cassette tape interface (DIN-5), RS-232 (D-25), Edge expansion connector
• Peripherals: 5.25" floppy drive, Printer
• Price: 55,000 dinars planned but increased to 80,000 during production

[edit] Design team

• Miroslav Kocijan
• Branko Zebec
• Ivan Pongračić
• Anđelko Kršić
• Damir Šafarić
• Davorin Krizman
• Zdravko Melnjak
• Vjekoslav Prstec
• Dražen Zlatarek

[edit] External links

• Old-Computers.com page about Orao
• MESS, Multi-System Emulator which supports Orao

Computer systems from Croatia
1980‑2000:	Galeb | Orao | Ivel Ultra | Ivel Z3
See also:	Full lists from Croatia | former Yugoslavia | World and history of computing in: Croatia | former Yugoslavia | (former) communist countries | World