Digital vs Analog
Digital thiab analog yog ob nqe lus tham hauv physics. Ib qhov chaw digital yog ib yam dab tsi uas tsis sib xws, thiab qhov chaw analog yog ib yam uas txuas mus ntxiv. Cov tswv yim ntawm cov digital thiab analog ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm xws li physics, electronics, data and signal processing, computer engineering, audio engineering a thiab ntau yam haujlwm. Hauv tsab xov xwm no, peb yuav tham txog dab tsi digital thiab analog yog, lawv cov ntsiab lus, kev siv digital thiab analog, qhov zoo sib xws ntawm ob, kev hloov pauv ntawm cov teeb liab los ntawm digital mus rau analog thiab analog rau lej, thiab thaum kawg qhov txawv ntawm digital thiab analog..
Analog
Feem ntau ntawm cov chaw uas peb ntsib hauv peb lub neej niaj hnub yog cov koom haum analog. Nyob rau hauv physics, raws li zoo raws li electronics, analog yog ib lo lus uas siv los piav txog ib tug teeb liab los yog ib tug muaj nuj nqi uas yuav coj ib tug nqi ntawm ib cheeb tsam. Lub teeb liab analog yog txuas ntxiv. Lub teeb liab sinusoidal voltage yog ib qho piv txwv zoo heev rau lub teeb liab analog.
Ib qho teeb liab analog muaj ntau qhov tseem ceeb ntawm ob qho txiaj ntsig. Qhov no, txawm li cas los xij, txwv los ntawm kev muaj peev xwm thiab kev daws teeb meem ntawm cov cuab yeej siv los ntsuas cov cim no. Analog signals tuaj yeem tshawb pom thiab tshuaj xyuas siv cov cuab yeej xws li cathode ray oscilloscopes, voltmeters, ammeters thiab lwm yam khoom siv kaw.
Yog tias lub teeb liab analog yuav tsum tau tshuaj xyuas siv lub khoos phis tawj, nws yuav tsum tau hloov mus rau hauv lub teeb liab digital. Qhov no yog vim cov khoos phis tawj tsuas muaj peev xwm tuav cov teeb liab digital. Analog suav tuaj yeem ua tiav siv cov khoom siv xws li kev ua haujlwm amplifiers thiab transistors.
Digital
Lo lus "digital" yog los ntawm lo lus "digit" uas txhais tau hais tias tus lej tshwj xeeb. Lub teeb liab digital tuaj yeem siv cov txiaj ntsig tsis sib xws. Piv txwv li, cov logic qib 1 thiab 0 yog cov txiaj ntsig digital. Lub logic theem ntawm 1 thiab 0 los yog "tseeb" thiab "false" tsis muaj nyob. Yog hais tias lub teeb liab digital yog digitized nrog qhov tseem ceeb ze rau ib leeg thiab nrog ntau tus nqi, nws tuaj yeem hais tias lub teeb liab yog qhov kwv yees zoo rau cov teeb liab sib xws.
Computers siv cov teeb liab digital hauv lawv cov circuits sab hauv tab sis feem ntau ntawm lwm cov khoom siv siv cov cim analog. Qhov tsawg kawg daws teeb meem digital muaj ob qhov txiaj ntsig tsis sib xws. Qhov hluav taws xob tiag tiag ntawm cov no nyob ntawm lub cev siv hluav taws xob. Ob theem teeb liab no hu ua binary signals. Lub teeb liab lej muaj 10 qib voltage, thiab lub teeb liab hexadecimal muaj 16 qib voltage.
Digital vs Analog
