12-Digit 2140 Desktop Desktop Calculator is designed for everyday desk use in offices, schools, reception areas and home workspaces. 12-digit display. Rounding and decimal switches. 4-key memory. PC style keys. Grand total. The desktop format keeps key functions easy to access for totals, taxes, purchasing, invoicing and routine administrative work. A dependable option for Canadian businesses ordering office supplies for teams, counters and shared workstations.