Itandukaniro riri hagati y'insinga z'amashanyarazi n'insinga z'amashanyarazi:

Itandukaniro ry'ingenzi. Imbere mu mugozi hari umuyoboro w'icyuma (cyane cyane umuringa, aluminiyumu); umugozi w'urumuri ukoresha fibre y'ikirahure nk'umuyoboro w'amashanyarazi.

Icya kabiri: hari itandukaniro mu bimenyetso by'itumanaho. Insinga zohereza ibimenyetso by'amashanyarazi. Insinga z'amashanyarazi zohereza ibimenyetso by'amashanyarazi.

Icya gatatu: hari itandukaniro mu mikorere. Insinga ubu zikoreshwa cyane cyane mu kohereza amakuru ku ngufu no mu kohereza amakuru ku rwego rwo hasi (nk'uko bigenda kuri telefoni). Insinga z'ikoranabuhanga zikoreshwa cyane cyane mu kohereza amakuru.