Many ECG machines include automated interpretation, but this is not at all reliable. Relying on machine interpretation has led to many errors including overdiganosis, underdiagnosis, treatment delays and even patient deaths. Until better algorithms are developed, you MUST learn to interpret the ECG by yourself.
This ECG is from a middle aged woman who presented with chest pain and dyspnoea that improved after nitrogylcerin. The computer interpretation was 'normal'.
This ECG shows subtle ST elevation in inferior leads with reciprocal changes in aVL. Troponins were positive. The computer misinterpreted the ECG as normal.