Whopper ERS V2.0 Jul83

F~l Version 2.0 July 14" 1983 Please direct your COlITIEnts in fII.l"iting to: Gary ttarten I1S 2R Peul 88ker IfS 2R Ann Nunziata ItS 2R I Apple Computer Confidential ApprovalS Engineering SOftware Engineering ,fvlaIkeUn:1 < Marufacturtng .~. Mass Star. Dtvision Approval of ."..~ Whopper" project by the ·aoove releases "The Wl1Opper" as defined by this doCu'nent. All' fUture Changes, If Sly, fTlJStbe agreed ~ by above. lheCtJ~t ' , , The Lls~ haS evolvedto be a falrly COfllllexCitd expensive system to build. OUr initial idea of 'Ntlat the hardWc31e would be has grown sl~lflcantly dUe to software requlrements.and f1aS grealtly increased the cost of.the.Lisa system to ~le ana the customer.' " The LIsa system has iune:rous tlOarC2s in it. The bOardS/SUbSyStems 1rolUC1eO 1n tne Llsa assencly are : ~ o 1-QlU . 0 1- 11.0 .. . 0 2 - 1/2 tEl t1eIoory cards o l~' Power Sl4lPly o 1- Video . .' o 2 - floppy D1Sk Dr1ves . o 1 - Profile Hard 1~1Sk aSS8ftt)ly .. The goal of the, IIIhopper 1~» to repackage the aboVe tlard~e 1n the exi sting Lisa package 1n sucn a way that the packag~no CleSigl 1s m1n~m1zea .n1le the sate functionality 1s prov1dEtd to·tne user for lower cost. In specific, tt:e care cage, power supply, v1t1EKt board, CI1dtne DiSk assetlOl1es .aula De cnangea while Rt.tCh of the package and the keyobard wouldrema1n the sane. The Lisa card cage contains four plug-tn caras; tne wnopper logic will De conta1nea on two ,.cards. In addition a hard diSk cantle 1nstall891n place of cne of the floppy dr1ves, tnus eliminating toe cost Of one floppy and tneProf11e packag1ng <nl power s u p p l y . ' . The final Whopper System ~ld trus have the following conf1gurat1oo: o'lCHiZ 68010 prt':a~ssor 0' Mt1U w1 ttl 512 byte pages crtd 4, t'8 teal address space , < . o 720 x 544 videO (w1 ttl 720 x 364 RJlde) , o 1281< Ra1 (max1f1U1'J) o 896K RAM (max1nunl withOUt expans10n card) o Bu1lt-in SOny Floppy DiSk drive ' o Bull t-in Widget Hard DiSk dr1ve o 2 Bu1l t -in serial ports o Keyboard/f1OJS8 1"terface .,1th TOO clOCk To emance the COItfJ8t1b111ty bet.een ~r f.nj Mac, a"square dOts" videO rooae1s prov1ded, the SOny Floppy Disk'dr1ve 1s used and a "Mac-like SCUl(j" generator 1s provided. ca,s1derable software effort w1ll still be required to make Hac applications 1\1"\ (lI'l the M1tRlef. In addition to tne electrical des1!J1 the M1tRler ,,111 requ1re mechanical Clesl~ to prev1ae new sneet Etal for IIO.I1ting the d1sk drives ana a1 fferent card cage ~ts. Anew power cable namess w111 also haVe to be desit7l8d. COst rec:lJCtion 1s a'l1~!1:ant part Of tile WlOpperproJect ana these parts w111 be redeSigned in the nest Ctlst ~ffect1ve IIS'V'lef poss1ble. ~ly 14, 1983 - 1- The _hopper ERS . D1ffeI'8ceslntte~ , " , from A s1gn1,f1cant space rectuctlon 1n the '~r' C(JES theflCtRly diSk cootroller, which 1n the lisa I1s abOUt. 30 IC' s anct ~ies abOUt 1/2 the lID board. This 1s r~ to the s1ngle XWi Chipancfseveral 1/0 b1ts 1n…