All of that changed back in the thermionic valve or " vacuum tube " days with the introduction of the ibm s 360 line of computers , in 1964 . suddenly , code didn t have to be thrown away and reimplemented every time you bought a new computer 這種情況的變化要回溯到1964年引入ibm s / 360產(chǎn)品線的電子管年代:突然之間,我們不需要每次新買一臺計算機時都丟棄原來的代碼并重新設計代碼了。