Izinto zokulawula zerobhothi elibumba umjovo zifaka ukulandelana komsebenzi, indawo yokufika, isikhathi sesenzo, isivinini sokunyakaza, nokusheshisa/ukwehlisa.
Ukulawulwa kwerobhothi lokubumba umjovo kuhlukaniswe ngezinhlobo ezimbili: indawo-ukuya{1}}ukulawula iphuzu kanye nokulawula umzila oqhubekayo.
Uhlelo lokulawula lungaklanywa kusetshenziswa ukulawula okulandelanayo kwedijithali ngokuya ngezidingo zesenzo. Okokuqala kudinga ukuhlela nokugcina uhlelo, bese ulawula irobhothi ukwenza umsebenzi ngohlelo olunqunyiwe.
Kunezindlela ezimbili zokugcina uhlelo: isitoreji esihlukile kanye nesitoreji esimaphakathi. Isitoreji esihlukile sigcina ulwazi lwezinto ezihlukahlukene zokulawula kumadivayisi esitoreji amabili noma ngaphezulu, njengokugcina ulwazi lokulandelana ku-pin plate, cam drum, noma itheyiphu enembobo; ukugcina ulwazi lwendawo ku-relay yesikhathi noma{1}}isigubhu esijikelezayo esisheshayo. Isitoreji esimaphakathi sigcina lonke ulwazi ezintweni ezihlukene zokulawula kudivayisi eyodwa yokugcina, njengetheyiphu kazibuthe noma isigubhu kazibuthe. Le ndlela isetshenziswa ezimeni lapho ukulandelana, isikhundla, isikhathi, kanye nesivinini kumele kulawulwe kanyekanye, okungukuthi, ezimweni zokulawula okuqhubekayo.
Ama-pin plate asetshenziswa ezimweni lapho uhlelo ludinga ukushintshwa ngokushesha. Ukushintsha uhlelo kudinga kuphela ukushintsha uhlobo olulodwa lwephinikhodi, futhi ipulaki efanayo{1}}ingasetshenziswa kabusha ngokuphindaphindiwe; ubude bohlelo ukuthi i-tape ekhonjiwe ingabamba abunamkhawulo, kodwa uma kwenzeka iphutha, yonke i-tape kufanele ishintshwe; umthamo wolwazi wekhadi elibhontshiwe unomkhawulo, kodwa kulula ukukushintsha, ukulondoloza, nokuphinda ulisebenzise; ama-magnetic cores kanye nezigubhu kazibuthe zifaneleka kuphela izinhlelo zokusebenza ezinamandla amakhulu okugcina. Ukukhethwa kwesici sokulawula kuncike enkingeni kanye nokunemba kohlelo.
Ezingalo zerobhothi eziyinkimbinkimbi, kusetshenziswa isistimu yokulawula-kanye{1}}nokukhiqiza kabusha iyasetshenziswa. Izikhali zamarobhothi eziyinkimbinkimbi zisebenzisa amasistimu okulawula edijithali, amakhompyutha amancane, noma amasistimu alawulwayo ama-microprocessor{3}}.
Ama-pin plate ayisistimu yokulawula esetshenziswa kakhulu, elandelwa yizigubhu{0}}ezishayelwa ngamakhamera. Lezi zinhlelo zinamakhamera amaningi, ngalinye linikezwe i-eksisi enyakazayo, futhi ukuphenduka okukodwa kwesigubhu kuqeda umjikelezo owodwa.
