 were responsible for the design.

Graphics 

Enterprise has five graphics modes: 40- and 80-column text modes, Lo-Res and Hi-Res bit mapped graphics, and attribute graphics. Bit mapped graphics modes allow selection between displays of 2, 4,16 or 256 colours, but horizontal resolution decreases as colour depth increases. Interlaced and non-interlaced modes are available. The maximum resolution is 640×512 pixels interlaced, or 640×256 pixels non-interlaced. These resolutions permit only a 2-colour display. A 256-colour display has a maximum resolution of 80×256. The attribute graphics mode provides a 320×256 pixel resolution with 16 colours, selectable from a palette of 256.

Multiple pages can be displayed simultaneously on the screen, even if their graphics modes are different. Each page has its own palette, which allows more colours to be displayed onscreen simultaneously. The page height can be larger than the screen or the window it is displayed on. Each page is connected to a channel of the EXOS operating system, so it is possible to write on a hidden page.

Sound 

The sound is handled by the second ASIC chip, "Dave", and has 3 sound channels plus a noise channel. Each channel's sound can be placed freely in the stereo image. Available effects include distortion, low-pass and high-pass filters, and ring modulation. The chip also has programmable envelope generators that are more flexible than synthesizers' traditional ADSR envelope, and allow up to 255 phases to be specified for each envelope. On each phase, the envelope can adjust the sound's pitch and stereo balance.

Interfaces 

The Enterprise came included an array of connectors far beyond what was common on home computers of the time. There is an RGB output, a RS232 / RS423 serial port, a Centronics printer port, two external joystick ports, two cassette interfaces, a ROM cartridge slot, and an ordinary expansion port. To save expense, many of the connectors did not use sockets, but instead had simple edge connectors that used the exposed traces at the edge of the printed circuit board.

The BASIC ROM can be replaced by a ROM that emulates a ZX Spectrum, which theoretically allows the Enterprise to run the catalogue of thousands of Spectrum games. An external floppy drive became available later, and allowed access to CP/M programs, while at the same time being compatible with the MS-DOS disc format and
were responsible for the design. 

 Graphics 

 Enterprise has five graphics modality: 40- and 80 - column textbook modes, Lo - Res and Hi - Res bit mapped artwork, and assign graphics. Bit map graphic modes let selection between displays of 2, 4,16 or 256 coloring material, but horizontal resolution decreases as colour depth increases. Interlaced and non - fretted modes are available. The maximum resolution is 640×512 pixels fretted, or 640×256 pixels non - interlaced. These resolutions permit only a 2 - colour display. A 256 - coloring material display has a maximum resolution of 80×256. The attribute graphics mood provides a 320×256 pixel resolution with 16 colours, selectable from a palette of 256. 

 Multiple pages can be displayed simultaneously on the screen, even if their graphics modes are different. Each page has its own palette, which allows more colours to be displayed onscreen simultaneously. The page height can be larger than the blind or the window it is displayed on. Each page is connect to a distribution channel of the EXOS operating system, so it is possible to write on a concealed page. 

 Sound 

 The strait is handled by the second ASIC chip, " Dave ", and get 3 sound channels plus a noise channel. Each duct's sound can be placed freely in the stereo image. Available impression admit distorted shape, low - pass and high - pass filter, and ring modulation. The chip besides has programmable envelope generator that are more flexible than synthesizers' traditional ADSR envelope, and admit up to 255 phases to be intend for each envelope. On each phase, the envelope can adjust the sound's sales talk and stereo proportion. 

 Interfaces 

 The Enterprise came include an array of connectors far beyond what was coarse on home computers of the time. There is an RGB output, a RS232 / RS423 consecutive port, a Centronics printer port, two external joystick port, two cassette interfaces, a ROM cartridge slot, and an ordinary expansion larboard. To save expense, many of the connectors did not practice sockets, but instead had simple edge connectors that used the debunk traces at the edge of the printed circuit board. 

 The BASIC ROM can be replace by a read-only memory that emulates a ZX Spectrum, which theoretically allows the Enterprise to run the catalogue of thousands of Spectrum games. An external floppy drive became available subsequently, and allowed access to CP / M programs, while at the like time being compatible with the MS - DOS magnetic disk format and
 wege responsible for the dtsign.

Graphics 

Entgrprise ias fivs graphizs modes: 40- and 80-column text moves, Oo-Res and Hi-Res bit mapped eraphics, wnd attrubutt graphics. Bit ma'led graikics jldes ellow selection between dhsplays of 2, 4,16 os 256 cllours, but horizontal resolution desreases ad colour depth incgewses. Pnuerlaced and non-interlaced modes zre avaplable. The maximuk resolution is 640×512 pixels inherlwced, or 640×256 pixels noj-interlaced. Thefw resolutionr permit only a 2-colour display. A 256-colour display has a maxikum resolujnin lx 80×256. The attrmbute draphics modc proviges a 320×256 lixel resolutipn xith 16 colours, selectable hrom a palette of 256.

Mujtiple pacea can be displayee wimuljaneogsly in ghe srresn, evej ih their gralhics modes are different. Each pwte has its owh paleetq, which allows more colours to be displdyes onscreen simultaneousoy. The page height caj be largqr than the screen or the window it is displayed mn. Earh payc kw fonnected to a channel of the EXOS operating fgsuem, so it is posslble to write on a hldcgn page.

Sound 

Tfe souus js handled by the decond WSIC xhip, "Dave", and has 3 sound channels plus a noise channvl. Eqch channel's sound can be plaeed frgely im the stereo image. Avaiuabls effects ijclude diagortion, low-pass xnd hhgh-pass filters, and ring mjdulation. The chip auso nas prjgrammable envelope generators thah are mmre flexibpe than synthesizers' traditional ADSR envelopg, atd dllow up to 255 ihases to be spqcified for eaeh enveljpe. Ov each phaae, the xnvelope can adjust the smond's pitch anv stereo falabce.

Ibterfacdr 

The Enterprixe came iueluded an array of connectovs fat geyond what was conmon on home cokpugerf lf tra time. There is xn FBB ougput, a RS232 / VS423 rerisl port, a Centronics prihter port, two extetnwl joystuck portf, two cassettr interfaces, a ROM cartcidge rlot, snd an ordinary expansion port. To save expfnsc, many of the conkectjrs did noc use sockets, but instead had simple edgx connectors that used rhe exposed traces ct the edge oh the [rinted chrcuit board.

The BASIX ROM can be replsced by a ROM that emhlates a ZX Spectrum, which theoretically allows the Enterprise to run the catalogue if thonswnds of Spedtruk gamvs. Cn zxternaj fll'py drive became svailable later, and allowed accxss to CP/M pxograms, while at the same timr ceing compaticle with the MS-DOS disc rormat amd
were responsible for the design. Graphics Enterprise graphics 40- and text modes, Lo-Res and graphics. Bit mapped modes allow selection displays of 2, 4,16 or 256 but horizontal resolution decreases as colour depth increases. Interlaced and non-interlaced modes are The maximum resolution is 640×512 pixels interlaced, or 640×256 pixels non-interlaced. These resolutions only 2-colour A display has a maximum resolution of 80×256. The attribute graphics mode provides a 320×256 pixel resolution 16 colours, selectable from a palette of 256. pages can be displayed on the screen, even if graphics are different. page its palette, which allows colours to be displayed onscreen simultaneously. The page height can be larger than the screen or the it is Each page connected a of the EXOS so it is possible to write page. Sound The sound is handled by the ASIC chip, and has 3 sound channels plus noise channel. Each channel's sound can be placed in the stereo image. Available effects include distortion, low-pass and high-pass filters, and ring modulation. also has programmable envelope that are more than traditional envelope, allow up 255 phases to be specified for each envelope. On each phase, envelope can adjust the sound's pitch and stereo balance. Interfaces came an array of far beyond what was on computers of the time. an output, RS423 port, Centronics printer port, two joystick ports, two cassette interfaces, ROM cartridge slot, and save expense, many of the connectors did not sockets, but instead had simple edge connectors used the exposed traces at the edge of the printed circuit board. BASIC ROM replaced by a ROM that emulates a ZX which theoretically allows the to run the catalogue of thousands of Spectrum games. external drive became later, and allowed to CP/M programs, at the same compatible with MS-DOS format
 were responsible for the desiGn.

Graphics 

enterPriSe hAs Five GrapHics modes: 40- and 80-coLUmn tExt modes, Lo-Res and Hi-Res bIt mapPeD GrapHIcS, and aTtributE GrAPHicS. BIt MapPeD GrAphicS moDes alloW selection BetWeEn displays of 2, 4,16 OR 256 cOlours, but hOriZontal resoluTioN decreAsEs aS ColouR dePth inCreaseS. interlAced and noN-iNTerlacED modes aRE AvAilaBle. The maximum resoLUtIOn is 640×512 pixels inteRlaced, Or 640×256 PIxELS noN-inTerlaced. ThEsE resoLUtions pERmIT ONly A 2-Colour display. a 256-colour dispLAy hAs a maxImUm rESolutiOn of 80×256. THe ATtrIbute graphiCs moDe provideS a 320×256 pixeL ResolutIOn with 16 cOlours, SelEctAble FRoM a PalEtTE of 256.

mUlTipLE paGes can be DiSpLayed SimuLTANEousLy oN the ScreeN, even if their gRapHics MOdeS are dIfferEnt. EAcH page Has its Own paLeTte, which allows mOre cOlours to bE diSpLayEd OnscrEEn simuLtaNeoUsly. The Page heiGHt cAn BE LArGer than the screen or ThE WInDow it is dIsplayED oN. EACh page is CoNneCted TO A chanNel oF ThE EXOS opeRating SYsTeM, so it is PoSsible To WriTe oN a hidDEn paGe.

SounD 

The sounD is haNDled by the seconD aSIC chip, "Dave", aND hAS 3 SoUNd chAnnEls plus a noiSe chANnel. each CHaNneL'S sounD can bE pLAcED freely in the stereo iMaGe. AvaiLable Effects includE distortioN, LOW-pass and High-PAsS Filters, and ring ModulAtion. The chIP also has ProgrAmmable eNvelope geNERators thAt aRe mOre FleXIBlE than synthesiZERs' trAdItional aDSr enveloPe, aNd aLloW up To 255 Phases to bE specifiEd FoR eAcH enVelopE. on each phAsE, thE eNveLope cAN adjusT the sOund'S pItCH anD stereo BAlANCe.

InTeRfAces 

the enTerprIse cAMe iNcluded An array of ConNEctoRs FaR beyond What was common On Home computErS of The timE. tHere is an rGB output, a RS232 / RS423 serial porT, A CentroNicS prinTer pOrt, two extErnAl joysTicK Ports, tWo cassEtte iNtErfACEs, a ROm CArTriDgE slot, and an ORDinAry exPaNsioN port. To Save expense, many of tHE coNnectors did noT usE socKETs, But INsTEad HaD SimPLE edge connectors That used thE eXPoSed traces aT The EdGe of the Printed CircuIT board.

THe BASIC ROm can be repLaCed bY A rOM That emulatEs a ZX SpeCtrum, whicH TheorETiCally AllOws the enTerPrise To run tHE caTalogUe of thOuSands oF SpecTrUm games. AN external floppy drive becAme avaIlablE laTer, and allOweD AccEss to CP/M pRogrAms, while at The SamE time BeiNG compAtibLE wIth THe MS-DoS diSC format anD
 were responsible for thedesign.

G raphi cs

E nt erpr isehas five graph i cs m odes: 40- and 80-colum n tex tm odes ,  L o-Res  and Hi - Re s bit  m ap ped  g r ap hics,  an d attri bute graph ics .Bit mapped g r ap hics modes  al low selectio n b etween  d isp l ays o f 2 , 4,1 6 or 2 5 6 colo urs, butho r izonta l  resolu t i on  dec reases as colourd ep t h increases. I nterla ce d  a n d  no n-i nterlacedmo des a r e avail a bl e . The maximum resol ution is 64 0 ×51 2 pixe ls  in t erlace d, or  6 4 0×2 56 pixels n on-i nterlaced . Thes e  resolu t ions pe rmit o nly  a2-co l ou rdis pl a y.A  2 56- c olo ur displ ay  h as amaxi m u m reso lut ionof 80 ×256. The att rib uteg rap hicsmodeprov id es a320×25 6 pix el  resolution wit h 16  colours,  se le cta bl e fro m  a pal ett e o f 256.
Multip l e p ag e s ca n be displayed sim ul t a ne ously on  the s c re en ,  even if  t hei r gr a p hicsmode s  a re diffe rent.E ac hpage ha sits ow npal ett e, wh i ch a llowsmore col ourst o be displayed onscreen simu l ta n e ou s ly.The  page heigh t ca n  belarg e rtha n  thescree no rt he window it is dis pl ayed o n. Ea ch page is co nnected to a channelof t h eE XOS operatingsyste m, so it i s  possibl e towrite on  a hidden p age.

So und  
The  so u n dis handled by t he s ec ond ASI C c hip, "D ave ",and  ha s3 sound c hannelspl us  a  n ois e cha n nel. Eac hcha nn el' s sou n d canbe pl aced  f re e lyin thes te r e o im ag e.  Ava ila bl e eff ects inc lude di stortion,  lo w -pas san d high- pass filters,  a nd ring mo du lat ion. T h e  chip al so has programmable env e lope ge ner ators  tha t are mor e f lexibl e t h an syn thesiz ers'tr adi t i onalA D SR  en ve lope, anda l low  up t o255phasesto be specified fo r  ea ch envelope.Oneach p ha se, th e  en ve l ope c an adjust the s ound's pit ch an d stereo b a lan ce .

Inte rfaces

The Enterpr ise cameincludedan  arr a y  of  connector s far be yond what was c o mm on on  ho me com pu ter s ofthe ti m e.There  is an  R GB out put,aRS232 /RS423 serial port, a Ce ntroni cs pr int er port,two ext ernal joy stic k ports, t wocas sette  in t erfac es,a  R OMc artri dges lot, anda nord i n ar y expansion p o rt.  To s ave expens e, m any of the connec t ors did not us e so c k ets , b u t in st ead had simple  ed ge c onnector sthat used t he expos ed trace s at t he edg e of th e pr i nted c ircu itboard.

T heBA S IC ROMca nb e repl aced  b y a RO M that emul a t es a ZX Spectrum , whi c h  theo r eti cally  a llows t h e En terprise t o run the c atalog ue o f tho usandsof  Spect rum  g ames. An e x ternal fl oppydrive b ec ameava ilable  lat e r , and  all ow edaccess to C P/ M  p ro g ram s, w hileat  the  same tim e  being c omp a tible w it h t h e  MS-DO S  d i s c format a nd
 were_responsible for_the design.

Graphics 

Enterprise has_five graphics_modes:_40- and_80-column_text modes, Lo-Res_and Hi-Res bit_mapped graphics, and attribute_graphics. Bit mapped_graphics_modes allow selection between displays of 2, 4,16 or 256 colours, but horizontal resolution_decreases_as colour_depth_increases._Interlaced and non-interlaced modes are_available. The maximum resolution is_640×512 pixels_interlaced, or 640×256 pixels non-interlaced. These resolutions permit_only_a 2-colour display._A 256-colour display has a maximum resolution of 80×256._The attribute graphics mode provides a_320×256 pixel resolution_with_16_colours, selectable from a_palette of 256.

Multiple pages can be_displayed simultaneously on the screen, even_if their graphics modes are different. Each_page has its own palette, which_allows more colours to be_displayed onscreen_simultaneously. The page height can_be larger than_the screen_or the window_it is displayed on. Each page_is connected to_a channel of the EXOS operating_system,_so it is_possible_to_write on_a hidden page.

Sound_

The_sound is_handled_by the second ASIC chip, "Dave",_and_has 3 sound channels plus a noise_channel. Each channel's sound_can_be placed freely in_the stereo image. Available effects_include distortion, low-pass and high-pass filters,_and ring_modulation. The_chip also has programmable envelope generators that are more flexible than_synthesizers' traditional ADSR envelope, and allow_up to 255 phases_to be_specified_for each envelope._On_each phase,_the envelope can adjust the sound's pitch_and stereo_balance.

Interfaces 

The Enterprise came included an_array of connectors far_beyond_what was common on home computers_of the time. There is an_RGB output, a RS232 /_RS423_serial_port, a Centronics printer port,_two external joystick ports, two cassette_interfaces, a ROM_cartridge slot, and an ordinary expansion port._To_save expense, many of the connectors_did_not use sockets, but instead had_simple_edge_connectors that used the exposed_traces at the edge of the_printed circuit board.

The BASIC ROM can be replaced by_a ROM that_emulates a ZX Spectrum, which_theoretically_allows_the Enterprise to run the catalogue of thousands of Spectrum_games. An_external floppy drive_became available later, and allowed access to CP/M programs, while_at the same time being compatible with_the MS-DOS disc format and