Sawubona, Habr! Kunethiwekhi ye-Bitcoin, wonke ama-node, ngokuvumelana, avumelana ngeqoqo le-UTXOs: zingaki izinhlamvu zemali ezitholakalayo zokusebenzisa, kubani ngokuqondile, futhi ngaphansi kwaziphi izimo. Isethi ye-UTXO iyisethi encane yedatha edingekayo ku-node yokuqinisekisa, ngaphandle kwalokho i-node ngeke ikwazi ukuqinisekisa ukufaneleka kokuthengiselana okungenayo kanye namabhulokhi aqukethe. Kulokhu, kwenziwa imizamo [...]
Indlela yokufunda lesi sihloko: Ngiyaxolisa ukuthi umbhalo mude futhi unesiphithiphithi. Ukuze nginigcinele isikhathi, ngiqala isahluko ngasinye ngesethulo esithi “Engikufundile,” esifingqa ingqikithi yesahluko ngomusho owodwa noma emibili. “Ngibonise nje ikhambi!” Uma nje ufuna ukubona engiqhamuke nakho, yeqela esahlukweni esithi “Becoming More Inventive,” kodwa […]
Isihloko siqoqa amasignali emithonjeni eminingana, iwacubungule futhi iwasakaze kunethiwekhi yekhebula. Okuqukethwe ochungechungeni lwama-athikili Ingxenye 1: Isakhiwo esijwayelekile senethiwekhi ye-CATV Ingxenye 2: Ukwakheka nokuma kwesiginali Ingxenye 3: Ingxenye ye-analogi yesiginali Ingxenye 4: Ingxenye yedijithali yesiginali Ingxenye 5: Inethiwekhi yokusabalalisa i-coaxial Ingxenye 6: RF ama-amplifiers amasignali Ingxenye 7: Abamukeli be-Optical Ingxenye 8: I-Optical […]
Umsebenzi wokucwaninga mhlawumbe uyingxenye ethakazelisa kakhulu yokuqeqeshwa kwethu. Umqondo uwukuba uzizame ngendlela oyikhethile ngenkathi usenyuvesi. Isibonelo, abafundi abavela ezindaweni zeSoftware Engineering and Machine Learning bavame ukuya ukuyokwenza ucwaningo ezinkampanini (ikakhulukazi i-JetBrains noma i-Yandex, kodwa hhayi kuphela). Kulokhu okuthunyelwe ngizokhuluma ngephrojekthi yami kuComputer Science. […]
NgeSonto eledlule, i-Bitcoin idlule i-$ 9000 okokuqala kulo nyaka. Ngokusho kwensiza ye-CoinMarketCap, okokugcina intengo ye-cryptocurrency enkulu kunazo zonke emakethe yayingaphezu kuka-$9000 yayingaphezu konyaka odlule, ekuqaleni kukaMeyi 2018. Kulo nyaka, i-Bitcoin yaqala ukuzuza umfutho futhi. Akukhona okokuqala ibeka irekhodi lenani elisha lonyaka. Okuningi […]
I-Yandex imemezele ukwethulwa kwamaphrojekthi amabili okufundisa abathuthukisi be-backend abasebenzisa i-Python yolimi lokuhlela olusezingeni eliphezulu. Isikole esigcwele i-Backend Development School esabasaqalayo, kanti ubungcweti be-inthanethi e-Yandex.Practicum okwabaqalayo abafuna ukufunda kahle umsebenzi kusukela ekuqaleni. Kuyaphawuleka ukuthi isikole esisha sizovula iminyango yaso kulokhu kuwa eMoscow. Uhlelo lokuqeqesha luthatha izinyanga ezimbili. Abafundi bazolalela [...]
I-MY.GAMES, ingxenye yemidlalo ye-Mail.ru Group, inokuhlangenwe nakho okubanzi ekusekeleni nasekukhuthazeni isiphequluli esidumile nemidlalo emincane, eyenza ikhathalogi ecebile yamaphrojekthi aku-inthanethi ezinhlobo ezihlukahlukene. Kodwa kulokhu iqembu linqume ukuliyisa ezingeni elibucayi kakhulu futhi lisize onjiniyela abanekhono ukudala ifilimu yesenzo yezinga lokuqala yama-consoles. Inkampani isilungele ukuxhasa ngezimali ukuthuthukiswa komdlalo futhi inikeze iqembu isitudiyo sayo […]
Imithombo yenethiwekhi ibika ukuthi inkundla yezokuxhumana i-Instagram ihlola indlela entsha yokubuyisela ama-akhawunti abasebenzisi. Uma manje udinga ukuxhumana nesevisi yenethiwekhi yokuphepha ukuze ubuyisele i-akhawunti yakho, khona-ke ngokuzayo le nqubo ihlelelwe ukwenziwa lula kakhulu. Ukuze ubuyisele i-akhawunti yakho usebenzisa indlela entsha, uzodinga ukunikeza ulwazi lomuntu siqu, okuhlanganisa inombolo yakho yocingo lweselula noma ikheli le-imeyili. […]
Inkampani yaseNingizimu Korea i-Samsung ikhumbuza abanikazi be-smart TV ukuthi bavame ukuskena i-firmware yabo ukuze bathole uhlelo olungayilungele ikhompyutha. Ushicilelo oluhambisanayo luvele ekhasini lokusekelwa le-Samsung ku-Twitter, elisho ukuthi ungavimbela ukuhlaselwa kwe-malware ku-TV yakho ngokuskena njalo emavikini ambalwa. Ngokumelene nesizinda salo mlayezo, imvelo engokwemvelo ngokuphelele […]
Ukukhishwa kwe-DragonFlyBSD 5.6 kuyatholakala, isistimu yokusebenza ene-hybrid kernel eyakhiwe ngo-2003 ngenjongo yokuthuthukisa enye indlela yegatsha le-FreeBSD 4.x. Phakathi kwezici ze-DragonFly BSD, singagqamisa uhlelo lwefayela olusabalalisiwe olusabalalisiwe oluthi HAMMER, ukusekelwa kokulayisha izinhlamvu zesistimu “ezibonakalayo” njengezinqubo zabasebenzisi, ikhono lokulondoloza idatha kanye nemethadatha ye-FS kumadrayivu e-SSD, izixhumanisi ezingokomfanekiso ezizwela umongo, ikhono. ukumisa izinqubo […]
I-Netflix ikhombe ubungozi obuningi obubalulekile kuzitaki ze-TCP ze-Linux ne-FreeBSD ezingadala ukuphahlazeka kwe-kernel noma zibangele ukusetshenziswa ngokweqile kwensiza lapho kucutshungulwa amaphakethe e-TCP aklanywe ngokukhethekile (iphakethe lokufa). Izinkinga zibangelwa amaphutha kuzibambi zobukhulu bosayizi webhulokhi yedatha kuphakethe le-TCP (MSS, Ubukhulu besayizi yesegimenti) kanye nendlela yokuvuma okukhethiwe kokuxhumana (SACK, I-TCP Selective Acknowledgment). I-CVE-2019-11477 (I-SACK Panic) […]
I-European Nuclear Research Center izoshiya yonke imikhiqizo yobunikazi emsebenzini wayo, futhi ikakhulukazi emikhiqizweni ye-Microsoft. Eminyakeni eyedlule, i-CERN yayisebenzisa ngenkuthalo imikhiqizo ehlukahlukene yokuhweba enemithombo evaliwe ngoba yenza kwaba lula ukuthola ochwepheshe bezimboni. I-CERN isebenzisana nenqwaba yezinkampani nezikhungo, futhi bekubalulekile kuye ukuthi enze […]
