一是防止错误的数据操作，二是禁止恶意用户的攻击。本文主要介绍了计算机网

Otu bụ iji gbochie usoro data na-ezighi ezi, nke ọzọ bụ igbochi mwakpo sitere n'aka ndị ọrụ ọjọọ. Isiokwu a na-ewebata njirimara nke njikwa nchekwa data netwọọdụ kọmputa, na-ebute ebumnuche nke njikwa nchekwa, ma na-atụ aro usoro njikarịcha maka teknụzụ njikwa nchekwa data, nke nwere ike inye nkwa siri ike maka iji nchekwa data nchekwa data kọmputa.

Otu n'ị ka igbochi usoro data n'adịghị mma, ndị ọzọ bụ igbochi ike igbochi ndị ojieme siri ike.Akwụkwọ a na-ewebata n'ụdị nhazi nke kọmputa ebe nchekwa kọmputa, na-ewebata ihu ọdịmma nke njikwa nchekwa, ma na-ewebata mmetụta ọdịmma nke teknụzụ nlekọta data nchekwa, nke nwere ike inye ngosi nchekwa maka iji kọmputa ebe nchekwa nke ụlọ ọrụ kọmputa.<br>