Ukuthuthukiswa kwezingidi kuwubufakazi bomlando.Kusukela kuma-padlock, ama-drawer locks, okhiye bekhabethe likagesi kanye nezikhiye zamabhayisikili ngeminyaka yawo-1950s kuya kwezikhiye zokulwa nokweba ngeminyaka yawo-1960s, kusukela kokhiye abayiziyingi ngeminyaka yawo-1970s, okhiye bezithuthuthu ngeminyaka yawo-1980s, kuya ku-IC, TM kanye nokhiye we-RF ngeminyaka yawo-1990s, ngisho nokukhiya amaphasiwedi, izingidi zeminwe kanye nezinhlelo ezibukwayo ze-intercom ezimele ubuchwepheshe obuphakeme kakhulu namuhla, Ifomu kanye nomsebenzi wezingidi kudlule eMhlabeni - izinguquko ezinyakazayo.
Ngokukhiya izigxivizo zeminwe esangweni, ingabe ukuphila kulula ngokwanele?Njengamadrowa namakhabethe, lapho ufuna ukunaka khona ukuphepha nokuba lula, hlobo luni lokukhiya olungaphephile futhi lube lula?
Kule nkathi yezigxivizo zeminwe ezihlakaniphile, vele, khetha "ukukhiya kwekhabethe lezigxivizo zeminwe"!