Lokaci, ƙwaƙwalwar ajiya da PC yi

Computer terminology wani lokacin dũkan a cakuduwar. Saboda wannan, da mai amfani da kuma a lokaci guda da karshe mai saye ya gamu da wasu matsaloli na zabi yayin sayen wani kwamfuta ko sabunta ta sanyi. Don daya daga cikin mafi muhimmanci halaye na wani PC ne da ake kira lokaci. RAM ne halin a matsayin mita siga, wanda shi aiki, kazalika da girman da magani jinkiri zuwa wasu kayayyaki na kwamfuta.

Kafin zuwa amsa tambaya abin da yake cikin lokaci, za mu bayyana ainihin manufa na RAM - bazuwar damar žwažwalwar ajiya.

Ta yaya "RAM"

Random damar ƙwaƙwalwar (RAM, RAM) - shi ne daya daga cikin mafi muhimmanci na wani kwamfuta. Yana dan lokaci Stores data zama dole ga aiki na processor. The bayanai canja wuri a cikin wannan hali faruwa kai tsaye daga ajiya naúrar kan tsakiya ko ta hanyar wani na musamman ultra-m ƙwaƙwalwar. A sauki kalmomi, da memory - 'yan Microchips cewa adana bayanai ga duk mai amfani da shirye-shirye a guje. Amma shi ne shi ba zai yiwu don adana shi duka a kan rumbun kwamfutarka, shi ke ma ƙwaƙwalwar? Abin baƙin ciki ba. A dukan batu na gudu da kuma aminci. A rumbunka drive ne inji na'urar da low aiki gudun (idan aka kwatanta da CPU bukatun) da kuma iyakance hanya. RAM ba shi da wadannan disadvantages, shi ne azumi, kuma ta rayuwa ne ba a dogara a kan yawan hits.

rarrabuwa

Akwai iri biyu memory:

• SRAM - a tsaye RAM irin;
• DRAM - tsauri irin RAM.

Ba tare da faruwa a cikin dukan fasaha fasali na ganin na SRAM-memory za a iya ce da wannan tube masu azumi. Kuma da bata lokaci watsa bayanai a cikin RAM block faruwa nan take. Abin baƙin ciki, babban kudin irin wannan aiwatar shi ne daban-daban. Bugu da kari, da girma na cikin memory module an iyakance ga mun gwada manyan size na transistors. SRAM kayayyaki suna amfani da matsananci-sauri cache memory, wanda aka yi amfani a kan sarrafawa, wuya tafiyarwa da kuma sauran kwamfuta kayayyaki.

A tsauri irin RAM - shi ne duk da saba rectangular tube, wanda aka located a kan motherboard. Wannan memory yana da wani gwada da low cost da kuma high girma. Amma ta raka'a da su drawbacks:

• Tun da tsiri ƙunshi capacitor, shi wajibi ne don a kai a kai "sake halitta" a cajin a gare su, dõmin data ba a rasa. Wannan aiki da aka yi da CPU. Amma a lokacin da irin wannan memory damar dakatar da duk ayyukan da shi.
• The gudun wannan plank ne da yawa karami fiye da a tsaye.
• Yana taka muhimmiyar rawa da kuma yadda ya kamata a zabi lokaci. RAM da babban kundin da kuma high mita ne ba ko da yaushe iya nuna dole yawan aiki saboda high rashin laka.

Nau'in na RAM

A halin yanzu, akwai 4 iri memory kayayyaki:

• DDR - m RAM irin da aka yi amfani a kan sosai tsohon kwakwalwa.
• DDR2 - kamar tubalan na RAM zai iya har yanzu a iya samu a mazan inji mai kwakwalwa a hukumomin gwamnati da makarantu. The gudun wannan memory ba da damar mu jimre wa da m-zamani aikace-aikace, amma shi ya ishe kalma aiki da kuma igiyar ruwa da yanar-gizo.
• DDR3 - ya fi na kowa memory koyaushe. A kuzari ne 40% kasa da a sakin irin, kamar memory aiki gudun ne yafi hakan.
• DDR4 - juyin ci gaban RAM. Wadannan kayayyaki sun iya cikakken gamsar dukan bukatar zamani mai amfani. Lokacin da ganiya sanyi naúrar iya samar da kayan da aka samar daidai 34,1 GB / c.

memory Lokutan

Yanzu mun san abin da a RAM. To, abin da yake cikin lokaci? Wannan bata lokaci tsakanin aika da aiwatar da memory bas umurnin, wanda aka auna a hawan keke.

DRAM kunshi Kwayoyin hade cikin biyu-girma iri-iri. A tsari ne kama da raga, a cikin abin da akwai cell shafukan. Don samun damar kula nodes dole ne ya san su adireshin, kunsha na jere da shafi lambobi (tsarawa). The mutum iri-iri tare da wannan size of Kwayoyin suna hade a cikin abin da ake kira bankuna.

Saboda haka, kula accesses farko banki jere adireshin siginar RAS ta. Sai search for dole layi - shi ne mai zagayowar lokaci RAS zuwa CAS Dakata. Bayan nan, mai kula aika da shafi yawan da CAS-sigina. Jiran amsa ga irin wannan fatawar ne ake kira CAS rashin laka. Lokaci kira RAS Precharge umurnin ne lokacin da tsakanin rufe layi da kuma sake kunnawa, Active zuwa Precharge Dakata - tsakanin kunnawa da kuma rufe dokokin. Umurnin Rate - ne m tazara tsakanin wani biyu teams.

A lokacin da sayen wani sabon RAM mashaya iya zama mai sauki domin sanin lokaci. RAM labeled misali makirci: DDR3 (mita) CAS rashin laka - RAS zuwa CAS jinkirta - RAS Precharge - da'ira Time, a gaskiya kama DDR3 2133 9-12-12-28.

Wanne ne mafi alhẽri - m ƙwaƙwalwar ajiya ko kasa da bata lokaci ba?

Abu na farko da kula da lokaci. RAM tare da wani high mita iya zama jinkirin, saboda wani roko da processor yana da wani yawa ƙananan gudun, don haka da amfani ba za a gane. A lokaci guda, jinkiri ne ko da yaushe a misali matakin, ba shakka, idan ba ka sanya da RAM Lokutan da hannu.

Saboda haka, misali, na DDR2 memory na 1600 6-7-6-18 da yawa fiye DDR3 1866 9-9-9-24. Kamar yadda ka gani, a karo na biyu idan muka yi cikakken ƙarni na RAM a wata mafi girma kudi, amma da yawa da bata lokaci kawai negate wannan al'amari. By sayen sabon memory, kokarin zabi wani model cewa yana da mafi ƙarancin yiwu bata lokaci ba. Wannan hanya za ka tabbatar da kanka a high yi na kwamfuta matsayin dukan.