 Inombolo enziwe ngeziqu ezimbili ingaba nei elilodwa kuphela kulawa amabili, okungukuthi u-0 noma u-1, futhi kubhekiselwa kulezinombolo ngokuthi amadijithi aneziqu ezimbili noma  noma ama-bit, uma kusetshenziswa ulimi lwasejele. 