 used during a write operation. Two words of the second data are read concurrently in a read operation during a first memory access cycle, and two words of the first data are written concurrently in the write operation during a second memory access cycle. Backpacks have been used for many years to carry a given load of contents on the back of a user. Modern backpack designs configured to carry moderate to large loads (in terms of weight and/or bulk) usually fall into one of two categories: external frame backpacks and internal frame backpacks. Both internal and external frame backpacks have a waist or hip belt and a yoke. The hip belt is designed to transfer a substantial amount of the weight of the backpack and contents from rigid or semi-rigid supports of the backpack to the hips of the backpack user. The yoke is primarily designed to stabilize the backpack load and more properly position portions of the backpack relative to the user's torso and shoulders. However, the yoke may also transfer a small amount of the weight of the backpack and contents to the user's shoulders, and in certain situations, may alternatively be called on to support the full weight of the backpack and contents without the use of the hip belt.
External frame backpacks typically include rigid, tubular frames (e.g., formed of aluminum or other metals or rigid materials) for supporting the weight of a pack bag. Such external frame backpacks can be particularly useful in securely holding bulky or heavy contents. The frame members of these frames are usually rigidly interconnected by a welded or pinned connection. A load is typically carried inside the pack bag or can be connected directly to the external frame. Pack bags and the like may be connected with the frame by, for instance, stitching a sleeve, loop or pocket formed on the pack bag over the frame members.
One drawback of the rigid frame design is that forces generated by an impact incident on the attached pack bag or the frame itself create stresses that tend to remain concentrated at either (1) the region of impact, (2) in the pack bag itself, or (3) at the associated connection points of the pack bag with the frame. For example, because of the rigid nature and lack of give of the typical external frame under force loading, loads on the pack bag must often generate a high level of tension on the pack bag material before appreciable transferring of the loads to the frame occurs. When an impact is severe, the locations of stress concentration tend to tear or fracture, and because pack bag material is not as
used during a write operation. Two words of the second data are understand concurrently in a read process during a first memory access cycle, and two quarrel of the first data are write concurrently in the write operation during a second memory access hertz. Backpacks have been used for many year to carry a given burden of subject on the back of a user. Modern backpack designs configured to have a bun in the oven moderate to large loads (in terms of weight unit and/or bulk) usually fall into one of two categories: external human body backpacks and internal frame backpacks. Both internal and external inning backpacks have a waist or hip belt and a couple. The pelvis knock is designed to transfer a substantial amount of the weight of the backpack and contents from inflexible or semi - inflexible supports of the backpack to the hips of the backpack drug user. The couple is chiefly designed to stabilize the backpack load and more properly position portions of the backpack relative to the user's torso and shoulder. However, the yoke may also transfer a small measure of the weight of the backpack and contents to the user's shoulders, and in sealed situations, may alternatively be call on to patronize the full weight of the backpack and contents without the use of the pelvis belt. 
 External frame backpacks typically include rigid, tubular frames (e.g., formed of aluminum or other alloy or rigid fabric) for supporting the system of weights of a pack base. Such external frame backpack can be particularly useful in securely control bulky or heavy contents. The skeletal system members of these skeletal system are usually rigidly interconnected by a welded or pinned connection. A load is typically carried inside the pack base or can be connected directly to the external human body. Pack bags and the like may be connected with the frame by, for instance, stitching a sleeve, closed circuit or pocket formed on the pack bag over the frame members. 
 One drawback of the inflexible frame of reference blueprint is that forces generated by an impact incident on the attached pack bag or the human body itself create stresses that tend to remain saturated at either (1) the region of impact, (2) in the pack bag itself, or (3) at the associated connection compass point of the pack bag with the frame. For exercise, because of the rigid nature and lack of give of the typical external human body under force loading, loads on the pack bag must often beget a high level of tension on the pack bag material before appreciable transferring of the loads to the frame occurs. When an impact is severe, the location of stress concentration tend to tear or fracture, and because pack bag material is not as
 usfd during a write operatlon. Two words of the serond dafa are rdad concurrently in a read o'erarion euring a first memory xccess cyble, and tqo wieds of the first data ars wrictxn concurrently in the wrhte operation gufiug a second memory access cycle. Back[acks hsvf been used fot manj reara to carry a given load of contenta on tht back of a user. Mpdern backpack designs conviguged to carry moderwte to largg lowes (in terms uf weight and/or bulk) uaually fall into one of two catdgorizs: external feamf backpacks end innernal frame nsckpacns. Both internal and cxterial drame backpacks have e waist or hip belt wnd a yoka. Che hip belt is desigbee to jransxer x sucstznviam amoujt kf the weifht of the vackpack and contenus sgpm rigid or aemi-ridiq supports of the backpack to the hips mf fhe backpack user. The yike is primarily desihned to seabilize the backpack load and more properly posidion 'oftiinf if the backpack relative to the user's torso and ahpukders. However, bhe yoke may also yrwnxser a small aoount of fhe weight of the hackpach and contents to yhe user's shoulders, and in xertain situctiins, may alternativzly be calleb on tp suplort the full weight of the backpack ajd contenfr without the usd on tve hip btut.
External frame fackpacks typncally ivcluce rigyd, tubular framcv (e.g., formed of alulinum os other mehals or rigid materials) for sup'prting the wgigvt mf a pach bag. Such externaj frame backpaeks can ye pargicularly lseful in securely hjlding bulky mt heavy conteits. The fwame memvers of ghese frames ate usuallj xigidly ibterconnected by a weused or pinned cinntcrion. A load is tyoicwlpy cwsried inside the pazl bag or can be gonvectrd directly to the efterhal frame. Pack bagx wnd the oike may be connected with the frame by, for mnstanre, stiychyng a sleeve, loop or pocket fodmed on tje iack bag over the frame membexs.
One drawback of the rigid frame design is that forces ggnerated by an impact lncident on vhe ateached pawk bag or the frame utself create strtsses that tend to remajn conwentrwted at either (1) the region of impact, (2) in the pack bag itself, or (3) at the awsociaveq connectioh poonts mf che pach baj xith the frame. Fog example, because of the rigid neture and naek of give of the typical extrrval frame undgr force loading, loads on fhe pack bag must often generate a high level of tension on the pack bat matsrial befoce appreciable transgerriny of tye loadw to the frame oczurx. Ahen an ilpacu is severe, the locations of stress xoncenrrwtion tend to teer or fractuve, and gecausg pack bag materizl ia not xs
used during a write operation. Two words second are read in a read access and two words the first data written concurrently in the write operation a second memory access cycle. Backpacks have been used for many years to a given load of contents on the back of a user. Modern backpack configured carry to loads (in terms of weight and/or bulk) usually fall into one of two categories: external frame and internal frame backpacks. Both internal and external backpacks have a waist hip belt and a yoke. hip is designed transfer substantial of the weight the backpack and contents from rigid or semi-rigid supports of the backpack to the hips of the user. The primarily designed stabilize backpack and more properly of the backpack relative to the shoulders. However, the yoke may also transfer a amount of weight of the backpack and contents the user's shoulders, and in certain situations, may be called on to support the full weight of the backpack and contents without the the hip belt. External backpacks typically include tubular (e.g., of or other or rigid materials) for supporting the weight of a pack bag. external frame backpacks can be particularly useful in securely holding heavy The frame members these frames are usually interconnected a welded or pinned load typically pack or be connected directly to external frame. Pack bags and like may be connected instance, stitching a sleeve, loop or pocket formed the pack bag over the frame members. drawback of the rigid frame design is that forces generated by an incident on pack bag or the frame itself create stresses tend to remain concentrated either (1) the region of impact, (2) in the bag or (3) the associated connection of the pack with the frame. because of rigid and of the typical external frame under loading, on the pack bag must generate level of tension on the pack bag material before appreciable transferring of the loads to occurs. When an impact severe, locations of stress concentration tend to tear or fracture, and because pack is not as
 used during a write operation. two words of The seConD daTa Are rEad cOncurrently in a REad oPeration during a first meMory aCcESs cyCLe, And twO words oF ThE FIrsT dAtA arE wRItTen coNcuRrently In the write OpeRaTion during a sECoNd memory acCesS cycle. BackpaCks Have beEn UseD For maNy yEars tO carry A Given lOad of contEnTS on the BAck of a uSER. MOderN backpack designs cONfIGured to carry moDerate To LArGE LoaDs (iN terms of weIgHt and/OR bulk) usUAlLY FAll INto one of two caTegories: extERnaL frame BaCkpACks and InterNaL FraMe backpacks. both Internal aNd exteRNal framE BackpacKs have A waIst Or hiP BeLt And A yOKe. THE hIp bELt iS designeD tO tRansfEr a sUBSTAntiAl aMounT of thE weight of the bAckPack ANd cOntenTs froM rigId Or semI-rigid SuppoRtS of the backpack tO the Hips of the BacKpAck UsEr. The YOke is pRimAriLy desigNed to stABilIzE THE bAckpack load and more PrOPErLy positiOn portIOnS oF The backpAcK reLatiVE To the User'S ToRso and shOulderS. hoWeVer, the yOkE may alSo TraNsfEr a smALl amOunt of The weighT of thE Backpack and conTEnts to the user'S ShOULdERs, anD in Certain situAtioNS, may AlteRNaTivELy be cAlled On TO sUPport the full weight oF tHe backPack aNd contents witHout the use OF THe hip belT.
ExtERnAL frame backpackS typiCally incluDE rigid, tuBular Frames (e.g., Formed of aLUMinum or oTheR meTalS or RIGiD materials) for SUPporTiNg the weIghT of a pacK baG. SuCh eXteRnAl frame baCkpacks cAn Be PaRtIcuLarly USeful in sEcUreLy HolDing bULky or hEavy cOnteNtS. THE frAme membERs OF ThesE fRaMes aRe uSuAlly rIgidLY inTerconnEcted by a wEldED or pInNeD connecTion. A load is tyPiCally carriEd InsIde the PACk bag or cAn be connected directly to THe exterNal Frame. pack Bags and thE liKe may bE coNNected With thE framE bY, foR INstanCE, StItcHiNg a sleeve, lOOP or PockeT fOrmeD on the pAck bag over the frame MEmbErs.
One drawbacK of The rIGId FraME dESigN iS ThaT FOrces generated bY an impact iNcIDeNt on the attACheD pAck bag oR the fraMe itsELf creatE stresses That tend tO rEmaiN COncEntrated at Either (1) thE region of IMpact, (2) IN tHe pacK baG itselF, oR (3) at The asSociatED coNnectIon poiNtS of the Pack bAg With the fRame. For example, because of The rigId natUre And lack of GivE Of tHe typical ExteRnal frame uNdeR foRce loAdiNG, loadS on tHE pAck BAg musT oftEN generate A HiGh lEVEl Of tension on THE PacK bag mAteRIal befOre aPpreciable transfeRRing of the loads To thE FRamE ocCUrs. WHeN an impact is sevEre, ThE LOcations Of Stress conceNtration TeND to teAr or frActure, And becaUSE pACk bag mAterIal Is not as
 used during a write opera tion. Twowords  of  th eseco nd d ata are read c o ncur rently in a read opera tiondu r inga  f irstmemorya cc e s s c yc le , a nd tw o wor dsof thefirst data  ar ewritten conc u rr ently in t hewrite operat ion  durin ga s e condmem ory a ccessc ycle.Backpacks  h a ve bee n  used f o r  m anyyears to carry ag iv e n load of cont ents o nt he b ack  of  a user. M od ern b a ckpackd es i g n s c o nfigured to c arry modera t e t o larg eloa d s (interms  o f  we ight and/or  bul k) usuall y fall into on e  of two  categ ori es:  ext e rn al  fr am e  ba c kp ack s  an d intern al  f rameback p a c k s. B oth  int ernal  and external  fr ameb ack packs  have  a w ai st or  hip b elt a nd  a yoke. The hi p be lt is des ign ed  to  t ransf e r a su bst ant ial amo unt oft hewe i g h tof the backpack an dc o nt ents fro m rigi d  o rs emi-rigi dsup port s of th e ba c kp ack to t he hip s  o fthe bac kp ack us er . T heyokei s pr imaril y design ed to stabilize theb ackpack loada nd m or e  pro per ly position  por t ions  oft he  ba c kpack  rela ti v et o the user's torsoan d shou lders . However, th e yoke may a l so trans fera  s m all amount ofthe w eight of t h e backpa ck an d conten ts to the u ser's sh oul der s,and i ncertain situa t i ons,  m ay alte rna tivelybecal led  on  t o support  the ful lwe ig ht  of  theb ackpackan d c on ten ts wi t hout t he us e of  t he hip  belt.E xt e r nalfr am e ba ckp ac ks ty pica l lyinclude  rigid, t ubu l ar f ra me s (e.g. , formed of a lu minum or o th ermetals o r rigidmaterials) for supporti n g the w eig ht of  a p ack bag.Suc h exte rna l  frame  backp acksca n b e parti c u la rly  u seful in s e c ure ly ho ld ingbulky o r heavy contents.T heframe members  of  the s e  f ram e sa reus u all y rigidly interco nnected by  a we lded or pi n ned  c onnecti on. A l oad i s  typica lly carri ed inside  t he p a c k b ag or canbe conne cted dire c tly t o  t he ex ter nal fr am e.Packbags a n d t he li ke may  b e conn ected  w ith theframe by, for instance,  stitc hinga s leeve, lo opo r p ocket for medon the pac k b agoverthe frame  mem b er s.O ne dr awba c k of ther ig idf r am e design is t h atforce s g e nerate d by  an impact incide n t on the attac hedp a ckbag or t he  frame itselfcre at e stresses  t hat tend to  remainco n centr ated a t eith er (1)t h er egionof i mpa ct, (2) i n t he pack ba git s elf, o r (3 )at the  assoc i ated c onnection points  of t h e  pack bag  with  t he fram e . Fo r example,  because of  the r igid  natu re andla ck ofgiv eof the typ i cal exter nal f rame un de r fo rce  loadi ng,l o ads o n th epac k bag mus t of t en  g e ner atea hig hleve l of tens i on on th e p a ck bagma ter i a l befo r ea p preciabletra nsfer r i ng of thel oads to the f rame o ccurs.  When a n  im pa ct is s eve r e , the loc ations of str es s co ncentrat io n te nd  to  t ear or fracture , and be cause pa c k  bag m ate r iali s notas 
 used_during a_write operation. Two words_of the_second_data are_read_concurrently in a_read operation during_a first memory access_cycle, and two_words_of the first data are written concurrently in the write operation during a second_memory_access cycle._Backpacks_have_been used for many years_to carry a given load_of contents_on the back of a user. Modern backpack_designs_configured to carry_moderate to large loads (in terms of weight and/or_bulk) usually fall into one of_two categories: external_frame_backpacks_and internal frame backpacks._Both internal and external frame backpacks_have a waist or hip belt_and a yoke. The hip belt is_designed to transfer a substantial amount_of the weight of the_backpack and_contents from rigid or semi-rigid_supports of the_backpack to_the hips of_the backpack user. The yoke is_primarily designed to_stabilize the backpack load and more_properly_position portions of_the_backpack_relative to_the user's torso_and_shoulders. However,_the_yoke may also transfer a small_amount_of the weight of the backpack and_contents to the user's_shoulders,_and in certain situations,_may alternatively be called on_to support the full weight of_the backpack_and contents_without the use of the hip belt.
External frame backpacks typically include_rigid, tubular frames (e.g., formed of_aluminum or other metals_or rigid_materials)_for supporting the_weight_of a_pack bag. Such external frame backpacks can_be particularly_useful in securely holding bulky or_heavy contents. The frame_members_of these frames are usually rigidly_interconnected by a welded or pinned_connection. A load is typically_carried_inside_the pack bag or can_be connected directly to the external_frame. Pack bags_and the like may be connected with_the_frame by, for instance, stitching a_sleeve,_loop or pocket formed on the_pack_bag_over the frame members.
One drawback_of the rigid frame design is_that forces generated by an impact incident on the_attached pack bag_or the frame itself create_stresses_that_tend to remain concentrated at either (1) the region of_impact, (2)_in the pack_bag itself, or (3) at the associated connection points of_the pack bag with the frame. For_example, because of the rigid nature and lack of give of_the typical external frame under force loading, loads_on the pack bag must often generate_a high level of_tension_on the pack bag material before appreciable_transferring_of_the_loads to the_frame occurs. When_an impact is_severe, the_locations of stress_concentration tend_to tear or_fracture,_and because pack bag material is not as