Yuav Tshawb Fawb Kab Ceev Tshaj Tawm Txog Kev Tshaj Tawm
Kev ntsuas ntawm lub computer network qhov ua tau zoo-qee zaum hu ua internet ceev - feem ntau tau teev nyob rau hauv cov khoom hauv ib qho thib ob (bps) . Qhov no muaj peev xwm sawv cev rau ib tus nqi ntawm cov ntaub ntawv lossis qhov kev txwv theoretical rau cov kev siv network bandwidth .
Kev piav qhia ntawm Cov Kev Cai
Niaj hnub tes hauj lwm pab txhawb kev hloov cov khoom pauv loj hauv ib qho thib ob. Tsis txhob xa cov lus sib tw ntawm 10,000 lossis 100,000 bps, tes hauj lwm feem ntau qhia ob qhov kev ua tau zoo li ntawm kilobits (Kbps), megabits (Mbps), thiab gigabits (Gbps) , nyob qhov twg:
- 1 Kbps = 1,000 bits ib ob
- 1 Mbps = 1,000 Kbps
- 1 Gbps = 1,000 Mbps
Lub network nrog kev ua haujlwm ntawm cov koog nyob hauv Gbps yog sai dua li ib cov nyob hauv cov kauj ruam ntawm Mbps los yog Kbps.
Piv txwv ntawm Kev Ntsuas Kev Ntsuas
Feem ntau cov khoom siv network uas nyob hauv Kbps yog cov khoom qub thiab kev ua qis tshaj los ntawm cov qauv kawm hnub no.
- Dial-up modems txhawb kev xa mus nce mus txog 56 Kbps.
- Theoretical speed nyob rau hauv tsev tes hauj lwm hauv tsev siv 802.11g Wi-nkaus router yog nyob ntawm 54 Mbps, thaum newer 802.11n thiab 802.11ac routers yog nyob ntawm 450 Mbps thiab 1300 Mbps, feem.
- Gigabit Ethernet nyob rau hauv koj qhov chaw ua haujlwm muaj qhov sib txuas mus txog 1 Gbps.
- Tus kws kho mob lub vas sab fiber ntau feem ntau nce mus txog qhov tseeb ntawm 500 Mbps.
Khoom thiab vs. Bytes
Cov kev cai siv los ntsuas qhov peev xwm ntawm lub computer disks thiab nco tau zoo li thawj zaug rau cov uas siv rau tes hauj lwm. Tsis txhob muab cov khoom pov tseg thiab cov bytes .
Cov ntaub ntawv cia muaj peev xwm feem ntau ntsuas hauv units ntawm kilobytes , megabytes, thiab gigabytes. Nyob rau hauv qhov kev ua lag luam tsis yog hauv network, uppercase K nruab nrab yog ib feem ntawm 1,024 units ntawm lub peev xwm.
Cov lej hauv qab no txhais cov lej tom qab cov ntsiab lus no:
- 1 KB = 1,024 bytes
- 1 MB = 1.024 KB
- 1 GB = 1.024 MB