Kassadisk

Kassadisk is a term used in some Scandinavian retail IT contexts to describe the storage component that records point-of-sale transactions in a kassasystem (cash register system). The word combines kass(a) meaning cash register and disk, reflecting its role as the data repository for sales activity. In practice, kassadisk can refer to the physical hard drive inside a POS terminal, an attached storage device, or a cloud-based repository that retains sales data.

The primary purpose of kassadisk is to store transaction data and related records to support reporting, inventory reconciliation, auditing, and tax compliance. Typical data stored includes transaction identifiers, timestamps, items purchased, quantities, prices, discounts, payment methods, totals, tax codes, and receipt information. Some implementations may also retain customer identifiers or loyalty data when available and legally permissible.

Security and compliance are central considerations. Data at rest should be protected through encryption and strong access controls, while audit logs should be tamper-evident. Regular backups and disaster recovery plans are standard to prevent data loss. Compliance requirements vary by jurisdiction but commonly involve payment card industry standards, data protection regulations, and specific tax authority retention rules, which mandate retention periods often spanning several years.

Implementation approaches vary: kassadisk may reside in the POS device, be hosted on a local server, or be managed as a cloud service with appropriate integration to the kassasystem and reporting tools. The term is not universally standardized and usage can differ between vendors and regions.