DAWSON - Serverless Computing guide for Novices and Dummies
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Dawson
Maddie Stigler
Praveen Kumar Sreeram
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Contents
INTRODUCTION
Srvrl mutng an vnt-drvn ltn dgn and deployment rdgm n which mutng resources r provided as lbl cloud rv. In trdtnl ltn dlmnt, the rvr mutng rur rrnt fxd nd rurrng t, regardless of th amount f computing wrk tht actually being rfrmd by th rvr. In a rvrl computing deployment, th cloud utmr only pays fr rv usage; thr never n t td with idle, down-time.
Srvrl mutng d nt eliminate rvr, but instead seeks to mhz th d tht mutng rur ndrtn can b moved nt th bkgrund during the dgn process. Dvlr n drop n code, rt bknd ltn, rt vnt hndlng rutn and r dt all without worrying about rvr, vrtul machines (VMs) r the undrlng compute rur because th actual hrdwr and nfrtrutur nvlvd r ll mntnd b the provider. Th trm rvrl mutng ftn td wth th NO mvmnt nd the nt m l b rfrrd to rvrl lud mutng, function a rv (FaaS) or runtm a service (RS).
Wth serverless mutng, dvlr dnt hv to deal wth managing mhn instances n th cloud. Intd, th n run d n lud servers wthut having to nfgur or mntn th rvr t all. Pricing is bd n th actual munt f resources numd b n ltn, rather thn n r-urhd units f t.
Typically, f dvlr ht thr ltn on virtual rvr bd in the cloud, they hv to t u nd mng those rvr, install operating tm on thm, monitor thm nd ntnull update th ftwr.
Wth th rvrl model, a developer can wrt a function in h r her fvrt rgrmmng lngug and t t t a serverless ltfrm. Th lud rv provider manages th infrastructure nd the software nd m the funtn t n API ndnt, transparently scaling funtn ntn on demand.
Srvrl mutng l n mrtnt part n digital transformation. First, it nbl dvlr t b more rdutv b helping thm focus n wrtng d tht h bun vlu, wthut having t wrr about th underlying nfrtrutur that will urt th d. Regardless of vertical ndutr r mn z, a rvrl mutng trtg can hl nr dvlr rdutvt b eliminating mngmnt overhead.
CHAPTER ONE
Computing is the process f using mutr thnlg t mlt a gvn goal-oriented tk. Computing m nm the dgn nd dvlmnt f software and hrdwr tm for a brd rng f ur - often truturng, processing and mngng n knd f nfrmtn - t aid n the urut f ntf studies, mkng ntllgnt systems, nd creating and ung dffrnt md for ntrtnmnt nd mmuntn.
A mutr a mhn fr mnultng data rdng to a lt f instructions.
Cmutr tk numru hl frm. Erl ltrn mutr were th z f a large rm, consuming much wr several hundrd mdrn rnl mutr. Td, mutr can be md small nugh t fit into a wrt watch nd b powered frm a wth battery. St h come t recognize rnl computers nd thr rtbl uvlnt, th laptop computer, as n f th information g; they r what mt l thnk f as " mutr." However, th mt mmn form f mutr n u today by fr th mbddd mutr. Embddd computers are mll, ml dv tht are ftn used t control other devicesfor xml, th may b fund in mhn rngng from fghtr rrft t ndutrl rbt, digital mr, nd vn children's t.
Th blt t tr and execute rgrm makes computers xtrml versatile nd dtnguh thm frm calculators. Th ChurchTuring th a mthmtl ttmnt of th vrtlt: An mutr with a rtn mnmum blt , n principle, capable f rfrmng the m tasks tht any other mutr can rfrm. Therefore, mutr wth capability nd mlxt rngng from tht f a personal digital tnt t a supercomputer r ll bl t rfrm the same muttnl tk as lng tm nd trg capacity r nt ndrtn.
History of mutng
It dffult to dfn any one device as th rlt mutr. Th vr definition f a computer h hngd nd t thrfr impossible to identify th first mutr. Mn dv n lld "mutr" wuld no longer qualify as uh b td' standards.
Originally, th trm "mutr" referred t a rn wh performed numrl calculations (a human mutr), often wth th aid of a mechanical lultng device. Examples of rl mhnl computing dv nludd th bu, the ld rul and arguably the trlb nd th Antkthr mhnm (whh dt frm but 150-100 B.C.E.). Th nd f the Mddl Agw a re-invigoration of Eurn mthmt nd engineering, nd Wlhlm Schickard's 1623 dv w the frt f a numbr f mhnl calculators ntrutd by Eurn ngnr.
Hwvr, none f those dv ft th mdrn dfntn of a mutr because th uld nt b programmed. In 1801, Jh Mr Jurd made an improvement t th txtl loom tht ud a r of unhd paper rd a tmlt t allow h loom t wv ntrt ttrn automatically. The rultng Jurd lm w n important step in the development f mutr bu the u of unhd cards t dfn woven patterns n be vwd an rl, albeit lmtd, frm f rgrmmblt.
In 1837, Chrl Bbbg w the frt to conceptualize nd dgn a fully rgrmmbl mhnl computer that h lld "Th Analytical Engn". (Th Anltl Engine huld not b confused wth Babbage's difference ngn whh w a nn-rgrmmbl mhnl calculator.) Du t lmtd fnn, nd an nblt t resist tnkrng with th dgn, Babbage nvr tull bult his Analytical Engine.
Lrg-l utmtd dt rng f punched cards was rfrmd fr th US Cnu n 1890 b tbultng mhn designed b Hrmn Hllrth nd mnufturd b the Cmutng Tbultng Rrdng Corporation, whh later bm IBM. B the end f th nineteenth ntur a numbr f technologies tht wuld ltr rv useful n the realization f practical mutr hd bgun t r: Th punched card, boolean lgbr, the vuum tub (thermionic vlv), nd th teleprinter.
Durng the frt half of th twntth century, mn ntf computing nd wr mt by nrngl sophisticated analog mutr, whh ud a drt mhnl r ltrl mdl f the problem a b fr computation. However, th were nt rgrmmbl nd gnrll lkd th vrtlt nd accuracy f mdrn dgtl mutr.
A succession f tdl mr wrful nd flxbl computing dv wr ntrutd n th 1930 nd 1940s, grdull ddng th key features tht r n n modern mutr. Th u of digital ltrn (lrgl invented b Clud Shnnn n 1937) and mr flxbl rgrmmblt were vtll mrtnt t, but dfnng n point along this road as "the first digital electronic computer" is dffult (Shnnn 1940). Ntbl hvmnt nlud:
EDSAC was n f th first mutr t implement th trd program (vn Numnn) rhttur.
Knrd Zu' electromechanical "Z mhn." The Z3 (1941) was th frt wrkng mhn fturng bnr rthmt, including fltng point arithmetic and a mur of programmability. Ltr, in 1998, th Z3 w proved to be Turing mlt, nd therefore w ffll lbld the wrld' frt rtnl mutr.
The Atnff-Brr Cmutr (1941) whh ud vuum tube bd muttn, binary numbr, and rgnrtv tr mmr.
Th rt Brth Clu mutr (1944), which hd limited programmability but demonstrated that a device ung thund f tub uld b reasonably rlbl and electronically rrgrmmbl. It was used for brkng German wartime d.
The Harvard Mark I (1944), a large-scale electromechanical computer wth lmtd rgrmmblt.
Th U.S. Army's Bllt Research Laboratory ENIAC (1946) used dml rthmt and was the first gnrl ur electronic mutr. It numd n tmtd 174 kW. (By mrn, a tl personal mutr m use rund 400 W; vr fur hundrd tm less.[1]) It ntll hd n nflxbl rhttur tht ntll rurd rwrng to hng its programming.
Svrl developers f ENIAC, recognizing its flaws, m up wth a far mr flxbl and lgnt dgn, whh came t b knwn th trd program architecture or vn Neumann rhttur. This dgn was frt formally described by Jhn vn Numnn in th r "Frt Drft f a Rrt n th EDVAC," ublhd n 1945. A numbr f projects t develop mutr bd on th stored program architecture mmnd rund th time, the frt f th bng mltd n Great Brtn. The first t be demonstrated wrkng was th Mnhtr Smll-Sl Experimental Mhn (SSEM) or "Baby." However, th EDSAC, mltd a r ftr SSEM, w rh th frt rtl implementation of the trd rgrm dgn. Shrtl thereafter, th mhn originally drbd b vn Neumann's paperEDVACwas mltd but ddn't full-tm u fr n ddtnl tw r.
Nrl ll mdrn computers mlmnt m frm f the stored rgrm rhttur, mkng t the single trt b which the wrd "mutr" now dfnd. B this tndrd, many rlr dv wuld no longer b lld computers b td' dfntn, but are uull rfrrd to as such n their htrl ntxt. Whl th thnlg ud n computers hv changed dramatically since the first electronic, general-purpose computers f th 1940, most tll u the von Numnn rhttur. Th design md the unvrl mutr a rtl reality.
Mrrr r mnturzd dv tht often implement trd program CPUs.
Vuum tub-bd mutr were in u thrughut th 1950s, but wr largely rld n the 1960s b trntr-bd dv, whh were mllr, ftr, cheaper, used l wr nd wr more rlbl. Th factors llwd computers t b rdud on an unrdntd commercial scale. B the 1970s, the adoption of integrated circuit thnlg nd th ubunt creation of microprocessors such th Intl 4004 caused nthr l n z, speed, cost nd rlblt. B th 1980s, mutr had bm uffntl mll nd cheap t rl ml mhnl ntrl n dmt ln uh whng mhn. Around th m tm, mutr bm wdl bl fr rnl u by individuals in the form of hm mutr nd th nw ubutu rnl mutr. In conjunction wth th wdrd grwth of th Intrnt n the 1990, rnl computers are bmng mmn the tlvn and th telephone and lmt all modern electronic dv ntn a mutr f m knd.
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