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Do I need Linux Version 7 and above to run VCS in it.??
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That's a question for Synopsys.
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I am Using RedHat 3 Does it support linux ???
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https://www.altera.com/support/software/download/altera_design/quartus_sub/dnl-quartus_sub.jsp has this:
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Quartus II Subscription Edition Software v8.0
Red Hat Linux Enterprise 3/4 & SUSE Linux Enterprise 9 (32/64-bit)
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Is altera Linux version free ??
Can I get atrail version for that ??
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http://www.altera.com/products/software/quartus-ii/compare-quartus-editions.pdf says that the Web Edition doesn't support Linux.
https://www.altera.com/support/software/download/altera_design/quartus_sub/dnl-quartus_sub.jsp shows the Subscription Edition free 30-day trial only with Microsoft Windows.