Modular mobile point of sale device having separable units for configurable data processing

A method comprising:

• determining, by a first device, a first data input component available to a first device;
• adjusting, by the first device, an electronic transaction processing operation for the first device based on the first data input component;
• in response to activating the first device for receipt of transaction data, receiving, by the first device, the transaction data from the first data input component using the electronic transaction processing operation;
• and
• processing, by the first device, the transaction data with an online service provider based on the electronic transaction processing operation.

A modular device comprising.

• a first device comprising an electronic keypad;
• a second device comprising a magnetic card reader;
• a third device comprising:
• a chip card reader;
• a non-transitory memory storing instructions;
• and
• one or more hardware processors couple to the non-transitory memory and configured to read the instructions from the non-transitory memory to cause the third device to perform operations comprising:
• detecting the first device and the second device connected to the third device;
• establishing communication channels for use of the electronic keypad with the first device and use of the magnetic card reader with the second device;
• determining transaction input processes available to the third device based on the communication channels;
• and
• configuring the third device for data input based on the transaction input processes, the first device, and the second device,
• wherein the first device and the second device comprise modular units that are connectable to and separable from the third device.