"Ib qho ntawm cov laj thawj kom mus rau hauv tsev kawm ntawv qib siab yog mus dhau qhov kev cob qhia ua haujlwm yooj yim thiab tsis txhob nkag siab cov tswv yim tob dua." Cia peb xav txog lo lus nug no me ntsis. Ob peb xyoos dhau los, Computer Science departments tau caw kuv los qhia txog ntau lub tsev kawm ntawv qib siab. Yuav luag yog lub caij nyoog, kuv nug kuv thawj cov neeg tuaj saib ntawm undergrads [...]
Hnub no zaj lus qhia peb yuav mob siab rau kev teeb tsa VLAN, uas yog, peb yuav sim ua txhua yam uas peb tau tham hauv cov tshooj dhau los. Tam sim no peb yuav saib 3 nqe lus nug: tsim VLAN, muab VLAN cov chaw nres nkoj, thiab saib VLAN database. Cia peb qhib lub qhov rais Cisco Packer tracer program nrog lub logical topology ntawm peb lub network kos los ntawm kuv. Thawj qhov hloov SW0 txuas nrog 2 lub khoos phis tawj PC0 thiab […]
Yog tias koj tsis tau hnov txog Alan Kay, tsawg kawg koj tau hnov nws cov lus nto moo. Piv txwv li, nqe lus no los ntawm 1971: Txoj hauv kev zoo tshaj plaws los twv seb yav tom ntej yog tiv thaiv nws. Txoj hauv kev zoo tshaj plaws los twv seb yav tom ntej yog los tsim nws. Alan muaj xim zoo nkauj heev hauv computer science. Nws tau txais Kyoto Prize thiab Turing Award rau nws txoj haujlwm ntawm […]
Alan Kay yog Master Yoda rau IT geeks. Nws yog tus thawj coj ntawm kev tsim thawj tus kheej lub khoos phis tawj (Xerox Alto), lus SmallTalk thiab lub tswv yim ntawm "object-oriented programming". Nws twb tau hais ntau yam txog nws txoj kev xav txog Computer Science kev kawm thiab cov phau ntawv pom zoo rau cov neeg uas xav kom nkag siab txog lawv txoj kev paub: Alan Kay: Kuv Yuav Qhia Computer Science 101 […]
Tus naj npawb ntawm cov lus "thawj" hauv kab lus yog tawm ntawm kab kos. Thawj "Nyob Zoo, Ntiaj Teb", qhov kev ua si thawj MUD, thawj tus tua, thawj qhov kev tuag, thawj GUI, thawj lub desktop, thawj Ethernet, thawj peb-khawm nas, thawj pob nas, thawj tus nas kho qhov muag, thawj nplooj ntawv puv-loj saib) , thawj multiplayer game... thawj tus kheej lub computer. Xyoo 1973 Hauv lub nroog Palo Alto, nyob rau hauv lub legendary R & D Laboratory […]
Nyob zoo sawv daws! Ib xyoo dhau los kuv tau sau ib tsab xov xwm hais txog yuav ua li cas kuv tau teeb tsa lub tsev kawm ntawv qib siab ntawm kev ua cov teeb liab. Kev txiav txim los ntawm kev txheeb xyuas, tsab xov xwm muaj ntau lub tswv yim nthuav, tab sis nws loj thiab nyuaj rau kev nyeem. Thiab kuv tau xav kom tawg mus rau hauv cov me me thiab sau lawv kom meej dua. Tab sis qee qhov nws tsis ua haujlwm los sau tib yam ob zaug. Tsis tas li ntawd, […]
Stefan Sperling (stsp@), uas yog tus txhawb nqa kaum-xyoo rau OpenBSD qhov project thiab ib qho ntawm cov neeg tsim tawm tseem ceeb ntawm Apache Subversion, tab tom txhim kho cov txheej txheem tswj hwm tshiab hu ua "Game of Trees" (tau txais). Thaum tsim cov txheej txheem tshiab, qhov tseem ceeb yog muab rau kev yooj yim ntawm kev tsim thiab yooj yim ntawm kev siv ntau dua li qhov yooj yim. Tau txais tam sim no tseem nyob hauv kev txhim kho; nws yog tsim tshwj xeeb rau OpenBSD thiab nws cov neeg tuaj saib lub hom phiaj […]
Ntau cov e-phau ntawv niaj hnub khiav hauv Android operating system, uas tso cai, ntxiv rau kev siv tus qauv e-phau ntawv software, los nruab software ntxiv. Qhov no yog ib qho ntawm qhov zoo ntawm e-phau ntawv khiav hauv Android OS. Tab sis kev siv nws tsis yog ib txwm yooj yim thiab yooj yim. Hmoov tsis zoo, vim qhov nruj ntawm Google cov ntawv pov thawj cov cai, e-nyeem ntawv cov tuam txhab tau tso tseg […]
Tom qab ntau tshaj li plaub xyoos ntawm txoj kev loj hlob, kev tso tawm ntawm Xfce 4.14 desktop ib puag ncig tau raug npaj, txhawm rau muab lub desktop classic uas yuav tsum muaj peev txheej tsawg rau nws txoj haujlwm. Xfce muaj ntau cov khoom sib txuas uas tuaj yeem siv rau hauv lwm cov haujlwm yog tias xav tau. Ntawm cov khoom no: tus thawj tswj qhov rais, lub vaj huam sib luag rau kev tso tawm daim ntawv thov, tus saib xyuas zaub, tus thawj tswj hwm rau kev tswj cov neeg siv sijhawm thiab […]
Hnub no, tom qab 4 xyoo thiab 5 lub hlis ntawm kev ua haujlwm, peb zoo siab tshaj tawm qhov kev tso tawm ntawm Xfce 4.14, ib qho tshiab ruaj khov uas hloov Xfce 4.12. Hauv qhov kev tso tawm no lub hom phiaj tseem ceeb yog tsiv mus nyob txhua qhov loj ntawm Gtk2 rau Gtk3, thiab los ntawm "D-Bus GLib" mus rau GDBus. Cov khoom feem ntau kuj tau txais kev txhawb nqa rau GObject Introspection. Raws li txoj kev peb ua tiav ua haujlwm ntawm […]
Yuav luag ib xyoos thiab ib nrab txij li qhov kev tso tawm kawg, kev tso tawm ntawm lub network kev ruaj ntseg scanner Nmap 7.80, tsim los ua kev tshawb xyuas network thiab txheeb xyuas cov kev pabcuam hauv network, tau nthuav tawm. 11 NSE cov ntawv tshiab tau suav nrog los muab kev ua haujlwm ntawm ntau yam kev ua nrog Nmap. Cov ntaub ntawv kos npe tau raug hloov kho los txheeb xyuas cov ntawv thov network thiab kev khiav haujlwm. Tsis ntev los no, txoj haujlwm tseem ceeb tau tsom mus rau [...]
Jyske Bank, lub txhab nyiaj loj thib peb hauv Denmark, tau hais lub lim tiam dhau los tias tam sim no nws cov neeg siv khoom yuav tuaj yeem rho tawm 10-xyoo qiv nyiaj nrog tus paj laum tas li ntawm -0,5%, txhais tau tias cov neeg siv khoom yuav them rov qab tsawg dua li lawv qiv. Hauv lwm lo lus, yog tias koj yuav ib lub tsev nrog $ 1 lab qiv nyiaj thiab them cov nqi tsev hauv 10 […]
