Yes, both Windows and MAC OS based personal computers may be used, mostly to transmit and process, sometimes to temporarily store Scoped Data (e.g. during customer support). Scoped Systems are stored on our servers in our partner's ISO 27001-certified data center (Hetzner).
Most of these devices are located within the physical compounds of QR Planet's offices. If necessary, they are connected via remote access in accordance with all relevant internal policies and common best practices.