It is likely that the tool which made the most crucial contribution to the system of apartheid was the computerized population register. The Plural Affairs Department maintained the passbook system on the more than twenty five million Africans defined as black. These records were all kept electronically on British-made ICL hardware. The Department of the Interior maintained the "Book of Life" files on the other seven million citizens classified as non-blacks using an IBM hardware system. The passbook records included data on "racial classification", name, sex, date of birth, residence, photo, marital status, drivers license, dates of departure from and return to the country, place of work or study, and fingerprints. One South African described the population register at work as,
Computers flashing out reference numbers, photocopies relayed by telephone, perhaps even instant transmission of fingerprints-all to keep track of members of the population. Sounds like George Orwell's 1984, doesn't it? Well it's South Africa's way of modernizing and streamlining its pass and influx control system