Transcript
  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 1

    BI 3: CC DCH V PH BIN TRN INTERNET

    I. GII THIU

    I.1. Tm tt ni dung

    Bi hc gm nhng ni dung chnh nh sau:

    Gii thiu tng quan v Internet.

    Gii thiu mt vi cng c s dng dch v trn Internet.

    Gii thiu mt vi dch v rt ph bin trn Internet hin nay. l:

    o Dch v tm kim: Gip cc bn khai thc ngun tri thc v tn trn

    Internet

    o Dch v th in t: y l phng thc giao tip ph bin nht trn

    Internet

    o Dch v Chat: Gip bn trao i, giao tip trc tip vi nhau trn

    Internet

    o Dch v din n thng tin: L ni bn c th tham ra trao i, tho

    lun theo ch

    o Dch v lu tr trc tuyn: y l dch v gip bn lu tr d liu

    trn Internet

    o Dch v qun l lch c nhn: Tin ch ny gip bn d dng qun l

    thi gian, tng hiu qu lm vic

    o Dch v mng x hi: Cung cp mt x hi o, ni cc bn c th kt

    bn, gii tr, lm vic, tr chuyn vi rt nhiu ngi khc

    Trong bi hc, ti s nhn mnh vo cc tnh nng vi cc ng dng c th

    trong i sng, cng vic v hc tp ca cc anh/ch.

  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 2

    I.2. Yu cu hc tp

    d dng nm bt tip thu bi hc ny, cc anh/ch cn chun b sn cho mnh

    cc kin thc c bn v my tnh v Internet.

    Bn nn trang b sn cho mnh nhng thit b cn thit c kt ni ti Internet (my

    tnh, in thoi thng minh...) . C kh nng ci t cc phn mm trn .

    I.3. Nhim v hc tp

    Sinh vin cn tham gia y cc nhim v trn h thng hc trc tuyn, nh hc

    ci bi hc dng hc liu in t, ti v cc hc liu dng Text v dng Audio ca

    mi tun hc (nu c).

    Sau mi bi hc dng hc liu in t u c bi trc nghim (10 cu hi),

    sau khi hc bi sinh vin cn hon thnh t nht 80% s cu hi mi c

    ghi nhn l hon thnh bi hc.

    Sinh vin cn hon thnh tt c cc bi luyn tp v bi kim tra trc

    nghim ca mi tun hc trn h thng m bo im chuyn cn v

    im kim tra gia k iu kin d thi tp trung cui k.

  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 3

    II. NI DUNG

    II.1. Tng quan v Internet v cc dch v ph bin trn Internet

    II.1.1. L thuyt

    Tin bc cng th gii, Vit Nam chng ta ang thc hin hi nhp v Internet l

    mt phn trong . Chng ta ang dn lm ch c nhng cng ngh tin tin, nn

    vn minh ca nhn loi.

    Cc thit b in t nh my tnh PCs,Laptop, in thoi di ng, my tnh bng

    qu quen thuc i vi chng ta. Nhng thit b ny l thnh phn thit yu

    trong i sng, cng vic v hc tp ca mi chng ta, gip chng ta s dng ti

    nguyn v hn ca Internet.

    Ti nguyn trn Internet mang theo tri thc ca nhn loi. Internet gip chng ta v

    s nhng cng vic, lm cho cuc sng chng ta tr nn th v hn, gip chng ta

    hon thin bn thnTin ch ca Internet l khng cn bn ci. iu quan trng l

    chng ta s khai thc nhng tin ch ny nh th no?

  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 4

    Chng ta thng s dng Internet thng qua 2 hnh thc sau:

    Tip nhn thng tin chnh l khai thc cc thng tin trn Internet (nh tm

    kim thng tin, c bo, kim tra Email,).

    mc cao hn, chng ta s tng tc trn Internet. Tc l ngoi vic chng

    ta thu nhn thng tin v, chng ta cn a ra nhng thng tin ca mnh,

    kin ca mnh, nhn nh ca mnh hay lm 1 vic g trn Internet. Mt

    vi hot ng d thy c hnh thc ny nh tham gia mng x hi, Chat

    hay tham gia vo din n.

    Cc dch v Internet ph bin trn c pht trin v cung cp bi rt nhiu cng ty

    sn xut phn mm rt ln nh: Facebook, Google, Microsoft.... C rt nhiu sn

    phm dch v trn Internet, nhiu trong s l cc sn phm min ph. Sn phm

    min ph d b hn ch chc nng hn so vi cc sn phm mt tin nhng cht

    lng vn m bo cho chng ta yn tm s dng.

    s dng c cc dch v trn Internet cn phi c cc cng c. Cc cng c

    l cc phn mm c ci t trn cc thit b ca bn. V trnh duyt Web l mt

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    Nhp mn Internet v E-Learning - Bi 3 Trang 5

    trong s . Khi tham gia vo Internet, trnh duyt Web l mt cng c khng th

    thiu. Trnh duyt web l mt phn mm ng dng cho php ngi s dng xem v

    tng tc vi cc vn bn, hnh nh, on phim, nghe nhc, tr chi v cc thng

    tin khc trn Internet. Trnh duyt web cho php ngi s dng truy cp cc thng

    tin trn cc trang web mt cch nhanh chng v d dng thng qua cc thanh a ch

    lin kt ca trnh duyt v d nh:

    http://www.ehou.edu.vn

    http://www.hou.edu.vn

    C nhiu trnh duyt web khc nhau, trong thng dng nht l cc trnh duyt:

    Internet Explorer, Safari, Firefox, Google Chrome Cc trnh duyt khc nhau i

    khi c th hin th ni dung khc nhau.

    Cn rt phn mm khc i theo cc dch v tin ch trn Internet nh phn mm

    Chat, phn mm mng x hi, phn mm hp th in t... Vic s dng thnh tho

    cc phn mm ny cng l cch s dng cc dch v trn Internet c hiu qu.

    Trong cc phn sau, ti s i chi tit vo mt vi dch v trn Internet.

    http://www.ehou.edu.vn/http://www.hou.edu.vn/
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    Nhp mn Internet v E-Learning - Bi 3 Trang 6

    II.2. Dch v tm kim trn Internet

    II.2.1. L thuyt

    Nh trnh by trn, cc bn truy cp vo cc trang web thng qua cc a ch

    lin kt ca mi Website. Hng nm, c hng triu Website mi c sinh ra mang

    theo rt nhiu thng tin, hnh nh, video... m c th bn quan tm.

    Mt cu hi t ra: Lm sao bn c th tm thy cc trang Web trn Internet?

    Dch v tm kim s tr li cu hi cho bn. Bn hy m t nhng g bn quan

    tm di dng cc t kha, sau s dng dch v tm kim thy c cc trang

    web cha ni dung m bn quan tm. Trn Internet c nhiu cc trang web h tr

    chc nng tm kim thng tin. Vit Nam l:

    http://xalo.vn

    http://baamboo.com

    http://socbay.com

    http://timnhanh.com

    http://www.diadiem.com : tm kim bn / ng i

    http://www.vietgle.vn : tra t in/ tm kim a danh/ danh nhn lch s, vn

    ha

    Trn th gii l:

    http://www.google.com

    http://www.yahoo.com

    http://www.bing.com

    Bc xc nh t kha v to lp chin thut tm kim l rt quan trng.

    Vy chn t kha cn qua cc bc no. Trc tin bn phi nm c t kha l

    g? T kha l mt t hoc cm t c rt trong tn ch hoc chnh vn ti liu,

    http://xalo.vn/http://baamboo.com/http://socbay.com/http://timnhanh.com/http://www.diadiem.com/http://www.google.com/http://www.yahoo.com/http://www.bing.com/
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    Nhp mn Internet v E-Learning - Bi 3 Trang 7

    n phn nh mt phn ni dung hoc ton b ni dung ca ch hoc ti liu .

    Cc bc tm t kha cn c tin hnh nh sau:

    Bc 1: Xc nh t ch o tm kim thng tin cho ln u tin

    V d : hc E-learning nh th no?

    t ch o l hc tp vi E-learning do c tm trc.

    Bc 2: Chn t c ngha, trnh chn t a ngha, lc b cc ph t (lin t,

    gii t, mo t).

    Vi v d trn, ta s tm li vi t kha: hc tp E-learning.

    Bc 3 : Xc nh t ng ngha, t c ngha lin quan (t c ngha rng hn

    hoc hp hn).

    Vi v d trn, ta s tm tip vi t kha: hc tp trc tuyn

    T kha ca bn a ra cn c th v st vi ch . Bn cn to lp chin thut tm

    kim khng ch kt qu cho ph hp. To lp chin thut tm kim l vic thit

    lp lgic gia cc t tm kim. Vic s dng tt cc t ni ca ton t lgic

    (Boolean) s cho ra kt qu st hn vi mong mun ca bn. Cc t ni (ph bin)

    l:

    OR - Hoc t ny hoc t kia.

    V d: E-learning OR Marketing: S ra lng kt qu rt ln

    AND (+) - Tt c u phi c.

    V d: E-Learning AND Marketing:S ra lng kt qu b thu hp

    NOT du (-) Loi tr, gii hn.

    V d: E-Learning NOT Marketing: Kt qu ch c khi nim E-learning, loi b

    t Marketing

  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 8

    Bn c th kt hp cc ton t vi nhau c nhng kt qu tt hn.

    Ngoi tm kim Website, bn c th tm kim cc ti nguyn khc trn Internet

    (nh hnh nh, video, tin tc, sch, blog,...). Vi cc ti nguyn ny, bn cng c

    th c t r cc tiu ch tm kim c cc kt qu tt hn.

    V d: Khi tm kim nh, bn ch r kch thc file, kch thc nh, loi nh

    Nu bn gp kh khn trong vic tm t kha, cc cng c tm kim cng s

    gip bn tm ra cc t kha tm kim bng cch. Khi bn g vo tm kim, cc

    cng c tm kim s gi cho bn cc t, cm t c tm kim nhiu, thng

    dng cho bn la chn.

    Hin nay, nhiu Web tm kim cn c th thc hin tm kim theo ging ni

    (Voice Search), qua bn khng phi g vo tm kim m ch cn ni l cc

    Web tm kim ny c th hiu c (in hnh l Google). Voice Search trn

    Google gi h tr cho bn tm kim vi ngn ng Ting Vit.

    Cc dch v tm kim ngy cng dn i n hon thin, vy chng ta hy tm

    hiu nhiu hn na v dch v ny phc v tt trong i sng, cng vic hay

    hc tp.

  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 9

    II.3. Dch v th in t (Email)

    II.3.1. L thuyt

    Email l mt dch v th in t, l phng tin truyn ti thng tin nhanh

    chng. Mt mu thng tin (th t) c th c gi i nhanh chng qua cc mng

    my tnh c bit l mng Internet. Thng tin c th c gi i t mt my

    ngun ti mt hay rt nhiu my nhn trong cng lc. Ngy nay, Email chng

    nhng c th truyn gi c d liu vn bn thng thng m n cn c th

    truyn c cc dng thng tin khc nh hnh nh, m thanh, video...

    C 2 loi cng c h tr cho ngi dng s dng th in t l Email Client

    v Web Mail:

    Email client, hay phn mm th in t (Microsoft Outlook, Mozilla

    Thunderbird, Netscape Comunicator hay Eudora). Mt cch gi tn thng

    dng khc ca email client l ng dng th in t (email application) nu

    khng b nhm ln. Email client s t ng ng b th trn Internet (chy

    ngm).

    WebMail hay hp th in t trn Web. s dng bn cn s dng thit b

    c kt ni ti Internet v s dng trnh duyt truy cp. Mt vi trang Web

    Mail thng dng l:

    o http://gmail.com

    http://gmail.com/
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    Nhp mn Internet v E-Learning - Bi 3 Trang 10

    o http://hotmail.com

    o http://mail.yahoo.com.vn

    Ni cung cp phn mm cng nh phng tin chuyn th in t gi l nh

    cung ng dch v th in t (Email Sevice Provider).

    Hin nay c nhiu dch v th in t c cung cp min ph. Tuy c cc hn

    ch v chc nng so vi cc dch v tr tin, nhng i vi chng ta l ngi

    dng c nhn th cc dch v min ph cng c th p ng y .

    Mi ngi c th c mt hay nhiu a ch email. Mi hp th s c mt a ch

    phn bit khng bao gi trng vi a ch email khc. Cu trc email nh sau:

    @

    V d: Sinh vin Nguyn Vn A khi nhp hc s c nh trng cp cho a

    ch Email: [email protected]

    http://hotmail.com/http://mail.yahoo.com.vn/mailto:[email protected]
  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 11

    Cc u im ca th in t so vi bu chnh thng thng:

    D son tho: Thay v vit th bng giy mc v bt th ngi gi ch cn g

    ch t bn phm ca my tnh v bit dng mt phn mm th in t.

    D qun l: Mi th gi n, gi i, th rc v k c th xa s c

    qun l d dng. Thm ch bn c th t to cc nhm th qun l ph hp

    vi bn.

    Tin li: C th c th mi lc mi ni c thit b kt ni ti Internet.

    Tc cao: Vn tc truyn th in t ch vi giy n vi pht v chi ph

    rt nh khng ng k so vi gi qua ng bu in.

    Lu tr ln: Bn c th lu gi nhiu th hn gp nhiu ln. Cc hm th

    in t c dung lng n hng Gbyte, nh dch v ca Gmail cho bn

    15GB dung lng lu tr vi mi ti khon, tng ng vi hng chc

    nghn l th in t.

    An ton: S dng th in t, bn cn phi ng nhp bng ti khon ng

    k vi nh cung cp dch v. ng ngha vi vic bn s khng phi lo lng

    ai cng xem trm th ca mnh.

    Nhiu chc nng: Ngoi chc nng thng thng nhn v son tho

    email, cc phn mm th in t c th cn cung cp thm nhng chc nng

    khc nh l:

  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 12

    o Chuyn tip th: Ngi nhn c th chuyn i ni dung l th cho

    mt hay nhiu ngi khc. Tuy nhin chc nng ny c khnng gy

    ly lan virus my tnh.

    o S a ch (Addresses hay Contacts): Dng ghi nh tt c cc a

    ch cn thit cho cng vic hay cho c nhn.

    o Cng c tm kim th in t (find hay search mail).

    II.3.2. Dch v chat

    II.3.2. L thuyt

    Dch v Chat khc vi dch v th in t l bn c kt ni trc tip vi

    ngi ang giao tip vi mnh. Bn c th gi i mt tin nhn v nhn cu tr

    li tc th. Cng ging nh th in t, bn c th s dng dch v Chat thng

    qua 2 hnh thc ph bin: Chat trn Web hoc s dng phn mm ci t trn

    thit b.

    Dch v Web Chat l dch v m bn thng c thy trn cc din n. Dch

    v Web Chat thng s dng Chat nhm dch v cung cp cho cc thnh vin

    ang c mt trn din n tho lun, trao i trc tuyn vi nhau (Dch v din

    n ti s m t trong phn sau).

    Hnh thc chat bng phn mm ci t trn thit b ph bin hn, c nhiu

    nh cung cp ln nh Yahoo, Skype... h tr. Khng ch PC, cc phn mm c

    th ci t trn Smart Phone, my tnh bng Gip bn tham gia mng Chat

    thng xuyn. s dng dch v ny, bn cn ng k mt ti khon vi nh

    cung cp dch v. Bn s s dng ti khon ny tham gia chat vi bn b.

    Phn mm Chat cho php bn lu li c danh sch bn b ca mnh. Bn c

    th phn nhm trn danh sch ny d qun l. Bn gi, nhn tin nhn thng

    qua ca s Chat. Ngoi vic gi cc tin nhn thng thng, bn c th chn

    thm vo trong ni dung tin nhn nhng biu tng, hnh nh tin nhn thm

  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 13

    sinh ng. Thm ch, vi nhiu cc phn mm Chat s cho php bn gi tp tin

    nh km, bi ht, b phim, bc tranh Cc chc nng ny s gip cho ni

    dung Chat th v hn.

    Phn mm Chat c th gip bn cp nht mt vi thng tin ca mnh ngay tc

    th ti ton b danh sch bn b. Mt vi thng tin c bn:

    Avatar: nh i din ca bn hin th trn phn mm Chat.

    Status: Mt on tin ngn m t iu g bn ang quan tm hay suy ngh

    no ca bn.

    Trng thi: Trng thi trc tuyn ca bn (ang trc tuyn, khng c y,

    trng thi n, bn)

    Thm na, phn mm Chat c th thng bo cho bn bn khi c ai trc tuyn

    (online) hay ngoi tuyn (offline), gi cho bn 1 tin nhn, 1 tp tin

    Ngoi cc chc nng c bn nu trn, phn mm chat cn c th h tr cho

    bnmt vi cc chc nng khc nh:

    Gi tin nhn ti nhiu ngi mt lc (rt hu dng khi bn c ni dung

    mun gi i ng thi ti nhiu ngi).

    V d: Thng bo lch hc, lch hp, mi sinh nht, mi ci

    Gi tin nhn Offline: D cho ngi nhn khng trc tuyn vn c th nhn

    c tin nhn khi ng nhp tr li.

    Tham gia Chat nhm (nhiu ngi cng Chat vi nhau): Cng ging nh

    hnh thc Chat nhm trn Web.

    Gi in min ph (Chat voice): Khi bn c ng truyn Internet tt, chc

    nng gi in min ph c th gip bn tit kim c nhiu chi ph thay cho

    hnh thc gi in thng thng.

  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 14

    Mt vi dch v chat rt ph bin:

    Window Live Messager: Dch v Chat c sn trn cc h iu hnh

    Windows c. T Windows 7 tr i, dch v ny khng cn m chuyn

    sang cc h iu hnh Windows Mobile, Windows Phone.

    Yahoo mt thi rt ph bin c s dng rng ri. Yahoo cung cp tt c

    cc chc nng k trn. Nhng vi s pht trin nhanh chng ca Facebook

    v Skype, s lng ngi s dng Yahoo t i rt nhiu.

    Skype gi ang ni ln vi cc u im v tc v tnh hu dng. Skype

    c kh nng truyn ti File c kch thc ln v kh nng chat voice c cht

    lng rt tt. Skype c dng rt nhiu trong cc c quan, t chc v

    trng hc.

    Mt vi phn mm ni ting khc nh: Viber, Line, Google Hangout u

    im ca cc dch v ny l cung cp dch v gi in min ph rt tt nn

    c ci t nhiu trn cc thit b di ng.

    Chat trn mng x hi: Dch v chat ny ti s m t chi tit hn trong cc

    phn sau.

  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 15

    II.3.3. Bi tp

    Cu hi 1. Nhng thit b no l nhng thit b ch yu gip chng ta s dng ti

    nguyn v hn ca Internet?

    A. PCs

    B. Laptop

    C. in thoi di ng

    D. Tt c cc p n u ng

    Cu hi 2. C my loi cng c h tr cho ngi dng s dng th in t?

    A. 2

    B. 3

    C. 4

    D. 5

    Cu hi 3. u khng phi l dch v th in t:

    A. Gmail

    B. Hotmail

    C. Google Map

    D. Yahoo

    Cu hi 4. Dch v no khng phi l dch v Chat?

    A. Window Live Messager

    B. SkyDrive

    C. Yahoo

    D. Facebook Chat

  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 16

    Cu hi 5. Chat Voice l dch v g?

    A. Cho php gi in min ph

    B. Cho php gi tin nhn min ph

    C. Cho php gi tin nhn Offline

    D. Cho php chat theo nhm

    II.4. Dch v mng x hi

    II.4.1. L thuyt

    Dch v mng x hi l dch v cung cp mt x hi o trn Internet m cc

    thnh vin trong mng x hi c gi l c dn mng. Tht vy, mng x hi

    thc s l mt x hi rng ln m trn , cc dn mng c th tha sc trao

    i, chia s thng tin, phim nh, x lun...

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    Nhp mn Internet v E-Learning - Bi 3 Trang 17

    tham gia lm thnh vin ca mt mng x hi, bn cng cn c ti khon

    ng nhp. Sau khi ng nhp, bn c th bt u thc hin kt bn. Cc thnh

    vin trong mng x hi lin kt vi nhau thng qua hnh thc kt bn. Mng x

    hi da theo cc thng tin ca bn lin tc a ra danh sch bn b m c th

    bn quen. Vi cch lm ny, mng x hi c th thu ht hng trm triu thnh

    vin trn khp th gii, t mang theo l mt khi lng thng tin khng

    l.

    Mi thnh vin c mt trang ring (gi l trang c nhn) v c th trnh by

    trang c nhn ny theo mnh. Cc thnh vin c th chia s thng tin ca mnh

    trn bao gm:

    Thng tin c nhn v gia nh

    Thng tin qu trnh hot ng hc tp v cng tc

    Thng tin s thch, thi quen

    Thng tin bn b

    Ni dung chia s c th l nhng bi vit, cng c th l nhng bc nh chia s.

    Chc nng Tag nh cho php bn nh du bn b ca mnh ln trn bc nh.

    im ni bt ca mng x hi l kh nng tng hp thng tin mnh m, cho

    php mi c dn mng la chn lung thng tin nhn v. Ti trang chnh ca

    mnh, bn c th tm thy rt nhiu thng tin c mng x hi tng hp lin

    tc. Vi cc thng tin nhn c, bn c th th hin s ng tnh ca mnh vi

    ai thng qua hnh thc like hoc trnh by kin ca mnh vi

    commenthoc n i nu khng mun theo di na. Mng x hi cng cho

    php bn Chat i trc tip vi bn b. D khng nhiu tnh nng nh phn

    mm chat m ti nu trn, vic tham tham gia chat trn mng x hi cng

    v cng tin li bi tn dng c danh sch bn b c trn mng x hi.

  • Trung tm o to E-learning C hi hc tp cho mi ngi

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    Thng tin m mng x hi mang li thc s hu ch. Qua bn c th:

    Hc tp nhiu lnh vc khc nhau ngy cng hon thin bn thn.

    Kt ni vi nhiu bn b mi.

    Tip tc gi lin lc vi bn b v ngi thn m khng cn gp mt trc

    tip.

    Hn th na, mng x hi c th tr thnh cng c c lc bn gii thiu v

    bn thn hay cc sn phm kinh doanh ca mnh.

    V d: Bn l mt kin trc s c nng lc, bn m t thng tin ca mnh trn

    mng x hi. Chuyn ng hng ngy ca mng x hi s gip cho thng tin

    ca bn ti c tay ca rt nhiu ngi. S khng ngc nhin nu mt ngy

    bn nhn c mt l th tuyn dng hp dn.

    Hoc c th bn mun cung cp cc sn phm thi trang snh iu, bn c th

    a nhng hnh nh v sn phm ca mnh ln trn mng x hi. Nu bit cch

    s dng hiu qu, mng x hi s gip bn nng cao doanh thu tht nhanh

    chng.

    Mng x hi cng c th tr thnh cng c gip cho bn lm vic nhm hiu

    qu hn. Mng x hi c th gip cho cc cng vic:

    Bo co tin cng vic, kt qu cng vic

    Trao i, tho lun trong nhm

    Thng bo tin tc ca nhm

    Chia s ti liu

    To s kin, thng bo ti tt c thnh vin trong nhm

  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 19

    Hin nay, mng x hi Facebook rt mnh ti Vit Nam cng nh trn th gii.

    Ngoi ra cng cn rt nhiu mng x hi khc nh: Friendster, Twitter,

    Netlog,

    II.5. Dch v lu tr trc tuyn

    II.5.1. L thuyt

    Thng thng chng ta hay lu tr d liu trong my tnh ca mnh, v mun mang

    d liu i u th cn phi s dng Usb hoc cng mang theo. iu ny kh

    l bt tin v c nhng ri ro c th xy ra nh d liu b hng hay khng m

    c

    Khc phc nhc im , dch v lu tr trc tuyn ra i. Dch v lu tr trc

    tuyn (lu tr trn mng) l dch v lu tr cho php ngi dng truy cp vo d

    liu ca mnh t bt c u thng qua Internet.

    Bn cng cn phi ng k ti khon s dng dch v ny. Lu lng min ph

    m cc nh cung cp cho ngi dng c th ln n vi Gbytes v c th tng thm

    trong tng lai.

    S dng dch v lu tr trc tuyn bn cng c th thng qua 2 hnh thc: Trn

    Web hoc s dng phn mm ci t trn thit b. 2 hnh thc ny khc nhau mt

    chi tit l: Phn mm ci t c th h tr thm thng bo khi c d liu mi

    c cp nht. C 2 hnh thc u p ng y cc chc nng c bn, l: Sao

    lu, ng b v chia s d liu. Trong :

    Sao lu d liu l thao tc to ra mt hay nhiu bn sao ca mt file d liu

    (gi l d liu gc) v lu tr an ton ti mt ni khc nhm c th phc hi

    khi d liu gc b h hng, mt mt. Mi bn sao lu ca file c gi l 1

    phin bn (version). Khi sao lu d liu, vic lu tr bao nhiu phin bn

    ph thuc vo tm quan trng ca d liu, kh nng mt mt, chi ph,

  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 20

    ng b d liu l lm cho d liu ging nhau v mi mt. Bn c th ng

    b d liu gia my tnh c nhn, in thoi di ng, my tnh bng.

    V d: Bn i du lch chp mt bc nh c trn in thoi. Bc nh c a

    ln dch v lu tr trc tuyn. M ca bn nh vo my tnh ng b v c th

    lp tc thy c hnh nh ca bn.

    Chia s d liu l cho php ngi khc truy cp v s dng d liu ca mnh.

    Chc nng ny rt hu ch khi lm vic nhm.

    Mt vi nh cung cp dch v lu tr trc tuyn nh: Dropbox, Box, Skype

    Drive, Google Drive

  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 21

    II.6. Dch v lch trc tuyn

    II.6.1. L thuyt

    Dch v lch trc tuyn l dch v cho php xy dng lch lm vic trc tuyn

    ca mnh trn mng, cho php mi ngi hoc cc nhm lm vic c th lin kt

    lm vic trc tuyn bt k ni no. Ngi dng c th tm v xc nh mi

    lch trnh lm vic chia s vi nhm cng tc khi s dng dch v lch trc

    tuyn.

    Tham gia dch v lch trc tuyn cng cn c ti khon. S dng dch v lch

    trc tuyn c th thng qua Web, nhng d dng hn, bn hy ci t phn

    mm lch trc tuyn trn my tnh hay cc thit b cm tay ca mnh tin theo

    di.

    Lch trc tuyn thng thng c th cho php bn theo di trong cc bng lch

    theo Thng, Tun hoc c theo tng ngy. iu ny c ngha l bn c th lp

    lch chi tit ti tng ngy, gi c th.

    Lch trc tuyn cho php bn ng b cc ngy l tt, cc ngy k nim ca t

    nc, hay cc ngy sinh nht ca gia nh vo bn b (c th thng qua cc ti

    khon email, chat hay mng x hi).

    Lch trnh cc vic cn lm c th to ra mt cch d dng bng cch nhp vo

    thng tin n gin v xc nh ngy hoc tun c th cho cng vic . Dch v

    lch trc tuyn s t ng a ra thng bo cho ngi dng v s v cn gii

    quyt vo mt lch trnh nh no .

    V d: bn c mun t chc 1 cuc hp v mun thng bo ti nhiu ngi

    khc.Vi dch v ny, bn ch vic ng k cuc hp ln lch trc tuyn, v

    thm vo nhng ngi c lin quan. Ngay lp tc thng tin lch s c cp

    nht ti nhiu ngi. V khi c thng bo, mi ngi u nhn c.

  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 22

    Dch v ny c cc quc gia pht trin rt u chung bi c th gip cho nng

    cao nng xut lm vic. Google Calendar hin nay i u nh l dch v lch

    trc tuyn min ph tt nht hin nay.

    II.7. Dch v din n in t

    II.7.1. L thuyt

    Din n in t hay cn gi l Forum l 1 Website ni mi ngi c th trao i,

    tho lun, by b kin v nhng vn cng quan tm. Cc vn tho lun c

    lu gi di dng cc trang tin.

    y l hnh thc tho lun khng trc tip, bn c th a bi tho lun ca mnh

    ln Forum, c khi ngay lp tc hoc c khi vi ngy, vi tun, thm ch vi thng

    sau bn mi nhn c kin phn hi.

    tham giao tho lun, bn cn ng k ti khon. Ti cc din n, cc ti khon

    cng c nhng cp khc nhau. Din n thng c rt nhiu nhm ch

    (Thread) v cng a dng. Trong cc nhm ch c rt nhiu ch nh. V

    trong cc ch ny c nhiu bi vit.

    Cc thnh vin tham gia s d dng theo di cc bi vit mi, cc bi vit c xem

    nhiu, cc ch mi, cc thnh vin ang trc tuyn... c cp nht lin tc

    ngoi trang ch din n.

    Khi tham gia din n, bn nn ch ti cc quy nh m din n a ra. Trn

    din n, bn c th chia s nhng kinh nghim hay gii thiu sn phm ca mnh.

    Din n cng l mt ngun thu thp thng tin rt tt bi lng thng tin truyn ti

    trn cc din n l rt ln. Bn c th tham kho mt vi cc Forum ph bin ti

    Vit Nam hin nay nh:

    http://www.tinhte.vn/

    http://www.vn-zoom.com/

    http://www.tinhte.vn/http://www.vn-zoom.com/
  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 23

    http://nhattao.vn/

    http://muare.vn

    http://webtretho.com

    II.7.2. Bi tp

    Cu hi 6. u l dch v lch trc tuyn?

    A. Google Maps

    B. Gmail

    C. Google Calendar

    D. Google Search

    Cu hi 7. Lch trc tuyn cho php bn ng b thng tin no?

    A. Cc ngy l tt

    B. Cc ngy k nim ca t nc

    C. Ngy sinh nht ca bn b

    D. Tt c cc p u ng

    Cu hi 8. Bn c th theo di bng lch theo?

    A. Thng

    B. Tun

    C. Ngy

    D. Tt c cc p u ng

    Cu hi 9. Din n trn Internet dng ?

    A. Cc thnh vin giao lu trc tuyn thi gian thc vi nhau

    B. Cc thnh vin tho lun trc tuyn thi gian thc vi nhau

    http://nhattao.vn/http://muare.vn/http://webtretho.com/
  • Trung tm o to E-learning C hi hc tp cho mi ngi

    Nhp mn Internet v E-Learning - Bi 3 Trang 24

    C. Cc thnh vin c th trao i, hc hi v nhiu lnh vc c cng s

    quan tm.

    D. Tm kim thng tin.

    Cu hi 10. Thng tin no thng c lin tc cp nht cho cc thnh vin d

    dng theo di?

    A. Cc bi vit mi

    B. Cc ch mi

    C. Thnh vin trc tuyn

    D. Tt c cc p n u ng

    III. TNG KT KIN THC

    Nh vy trong bi hc ny, ti gii thiu vi cc bn v mt vi dch v thng

    dng trn Internet. Bao gm:

    Dch v tm kim

    Dch v hp th in t

    Dch v Chat

    Dch v din n in t

    Dch v lu tr trc tuyn

    Dch v mng x hi

    Dch v qun l lch c nhn

    Chc Anh/Ch hc tp tt!


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