--- Guhagarika amacupa ya Vacuum nibice byingenzi mubice byibikoresho bya elegitoronike, cyane cyane mubikorwa byo kurinda umuzunguruko. Ibi bikoresho bikora umurimo wingenzi muguhagarika amashanyarazi mugihe cyamakosa, bityo kurinda amashanyarazi kwangirika. By'ibanze, icupa rya vacuum rihagaritswe kugirango rikore mubidukikije kashe, aho birimo