Tails works on most reasonably recent computers, say manufactured after 2008. Here is a detailed list of requirements:

• Either an internal or external DVD reader or the possibility to boot from a USB stick.
• Tails requires a 64-bit x86-64 compatible processor: IBM PC compatible and others but not PowerPC nor ARM. Mac computers are IBM PC compatible since 2006. Tails does not run on most tablets and phones.
• 2 GB di RAM per funzionare serenamente. È noto che Tails funziona anche con meno memoria a disposizione, ma si potrebbero verificare comportamenti imprevedibili e crash dei programmi.