Key features visible on the machine:
Display screen: A small screen is visible, likely to show real-time ECG waveforms and patient data.
Keyboard: There's a full QWERTY keyboard for entering patient information like name, age, and ID.
Function keys: Keys labeled F1 through F5 are located above the keyboard. These are typically programmable for specific functions within the device's software.
Specialized buttons: You can see buttons for functions like PRINT/STOP, 1mV/COPY, and MODE, which are specific to operating an ECG machine