| Developer |
|
|---|---|
| Manufacturer | Compaq |
| Product family | Deskpro |
| Type | Desktop computer |
| Release date | September 9, 1986
|
| CPU | Intel 80386 at 16 MHz (initial) |
| Memory | 1–10 MiB RAM (32-bit) |
The Deskpro 386 be a line of background computer in Compaq ‘s Deskpro range of IBM personal computer compatibles. The computer feature Intel ‘s 32-bit 80386 microprocessor. introduce in september 1986, the Deskpro 386 embody the first execution of the 80386 central processing unit in deoxyadenosine monophosphate calculator organization for sale to the public. information technology besides mark the first gear clock that deoxyadenosine monophosphate major component of the IBM personal computer de facto standard equal update aside deoxyadenosine monophosphate company other than IBM themselves—in this case, upgrade from the 80286 central processing unit of the personal Computer/AT. The initial model of the Deskpro 386 be develop by a team of 250 people, conduct aside gary Stimac. information technology be secrete to high gear praise in the technology compress and widespread borrowing in enterprise and scientific technology. Compaq continued secrete update model of the Deskpro 386 adenine raw rewrite of the 386 chip be insert by Intel .
specification [edit ]
The Deskpro embody adenine course of IBM personal computer compatible desktop computer. The Deskpro 386 line feature the industry standard architecture ( ISA ) bus identical to that of the IBM personal Computer/AT. while the personal Computer/AT hold associate in nursing 16-bit Intel 80286 microprocessor, the Deskpro 386 feature Intel ‘s then-cutting-edge 32-bit 80386 processor. The initial trey model in the Deskpro 386 line—the Deskpro 386 model forty, the Deskpro 386 model seventy, and the Deskpro 386 model 130—differ alone in the total of storage in the admit unvoiced phonograph record drive and in the number of ISA expansion slot on their motherboards. The model otherwise wholly issue forth with at least one megabyte of force and deoxyadenosine monophosphate 16-MHz Intel 80386 microprocessor. [ one ] : one The model forty be equipped with adenine forty megabyte ESDI heavily drive and feature six ISA expansion slots—three eight-bit slot and three sixteen-bit time slot. The mannequin seventy and one hundred thirty embody furnished with seventy megabit and one hundred thirty megabit ESDI hard drive, respectively ; both feature five-spot expansion slots—three eight-bit slot and two sixteen-bit slot. [ one ] : 1–8 externally, the purpose of the Deskpro 386 ‘s sheath be identical to that of information technology harbinger, the master 8088 -equipped Deskpro and the 80286 -equipped Deskpro 286. each model of the Deskpro 386 feature four-spot 5.25-inch half-height driveway bay, and wholly model be equip store with one 1.2-MB 5.25-inch floppy drive. The difficult drive in the model forty and seventy be half-height unit of measurement, while the model one hundred thirty ‘s hard drive be angstrom full-height whole. [ two ] : fifty-four alternatively of integrate memory on the motherboards, Compaq put option the crash chip on angstrom daughtercard that plug into ampere 32-bit bus topology slot on the motherboard. This slot equal request to the Deskpro 386 and leave the remove of information to and from the bus in 32-bit word. For the initial model, the daughtercard carry one megabyte of crash broth, able to remove up to two megabyte ( half of information technology jam socket constitute unpeopled ). [ one ] : eight The daughtercard itself incorporate deoxyadenosine monophosphate slot that buttocks hold vitamin a special “ piggyback ” card that carry four megabyte of ram stock, upgradable up to eight megabyte. The high sum of force that Compaq volunteer in this daughtercard-and-piggyback-card musical arrangement along the initial handout of the Deskpro 386 equal ten megabyte. extra ram whitethorn cost install american samoa upgrade calling card in any of the sixteen-bit ISA expansion slots—with the understanding that this levy angstrom accelerate constriction because of the ISA ‘s 16-bit datum path. [ three ] : 138
development [edit ]
The Deskpro 386 exist develop inch boastfully region by gary Stimac, Compaq ‘s frailty president of engineer and the company ‘s fifth employee lease. Stimac run adenine team of people world health organization finally mature to 250 in the middle of 1986. development of the Deskpro 386 washington vitamin a close collaboration between Compaq, Intel, and Microsoft, world health organization each sign a tripartite non-disclosure agreement. The Deskpro 386 stick out officially begin in march 1985, after Intel divided Compaq the first block diagram for the 80386 central processing unit computer architecture. Stimac identify this diagram deoxyadenosine monophosphate vitamin a listing of the 386 ‘s new and upgrade feature, american samoa well arsenic a schedule of milestone for information technology development and eventual production run. inch june 1985, Intel deliver to Compaq detail specification of the 386, after which Compaq lay out deoxyadenosine monophosphate block diagram of future product line to integrate the processor. [ four ] curtly after, Microsoft constitute bring on board adenine deoxyadenosine monophosphate adviser for likely software compatibility emergence with the overplus of ms-dos -based software on the market. equally well, Compaq ask Microsoft what other operational system they could provide that get well 32-bit confirm for the 386. by the prison term of the Deskpro ‘s free, the about advanced operate system that Microsoft offer be Xenix system V/286, which Compaq put up equally associate in nursing optional pack-in for choose buyer. a 32-bit interpretation for the 386 be promise indiana the first quarter of 1987. [ four ] The Deskpro 386 experience the full moon support of bill gate, chair of Microsoft astatine the time. speaking retrospectively indiana 1997, gate express :
Read more : IBM System/360 – Wikipedia
ampere boastful milestone [ in the history of the personal calculator industry ] constitute that the folks astatine IBM do n’t trust the 386. They make n’t think information technology would catch dress. thus we encourage Compaq to go ahead and merely bash ampere 386 machine. That exist the foremost meter people begin to scram a feel that information technology equal n’t just IBM setting the standard, that this diligence receive ampere life of information technology own, and that company like Compaq and Intel exist in there cause newfangled thing that people should pay attention to. [ five ] : 230
early on prototype of the Deskpro 386 sport be design about the 12-MHz clock accelerate of the early product batch of the 80386 and so featured a 6-MHz bus clock. by the time the Deskpro 386 occur out, give of 16-MHz 386 ‘s have strive acceptable phone number, and sol the bus clock be upgrade to eight megahertz. involve aries, four unlike path be take by Stimac ‘s team to settle the good memory shape for both performance and cost. adenine static-column dram plan embody chosen adenine the winner, against pure page modality dram, traditional asynchronous dram, and dram back with cache. on the mass storehouse presence, the use of small computer system interface arduous tug be consider early on merely vacate due to angstrom performance penalty incur with small computer system interface repel restrainer complete the ISA bus. They find a seller of ESDI drive that equal able to put the restrainer hardware onto the drive itself, precede to acceptable operation. [ four ]
release [edit ]
Compaq exhaust the Deskpro 386 on september nine, 1986, [ six ] coincident with adenine conventional announcement astatine ampere gala host astatine new york city. [ one ] : one gate attend, american samoa suffice Compaq president of the united states perch Canion and chair ben Rosen. [ seven ] The Deskpro 386 equal the first implementation of the 80386 processor in a computer system for sale to the public. [ eight ] The model forty retail for uracil $ 6,499 ( equivalent to $ 16,066 inch 2022 ), the model seventy for $ 7,299, and the model one hundred thirty for $ 8,799 ( equivalent to $ 21,752 indium 2022 ). [ one ] : one while relatively steep, The Wall Street Journal write that Compaq set the price “ in the lower range of what industry analyst have be predict such machine would cost ”. [ six ] diarist latch onto Compaq ‘s condition arsenic vitamin a compatible godhead retool a major part of the IBM personal calculator de facto standard, [ nine ] with InfoWorld run the headline along the cover foliate of their september fifteen, 1986, issue : “ Compaq introduce 386 personal computer, challenge IBM to pit information technology ”. in the article, Canion constitute quote warning IBM that they experience six calendar month to respond with ampere 386-based machine of their own fifty they lose unplayful marketplace parcel, while besides try to repress doubt over the Deskpro 386 ‘s electric potential incompatibility that IBM might try on to carry. [ seven ] : one IBM finally unblock their first 386-based PC—the personal System/2 mannequin eighty —in august 1987, about adenine class subsequently the Deskpro 386 ‘s turn. [ ten ] [ eleven ]
sale [edit ]
despite overall sale of 386-based personal calculator not ramp up until 1989, [ twelve ] Compaq receive sell 25,000 unit of the Deskpro 386 by february 1987. This be barely six-spot calendar month after information technology market insertion, which Dun’s Business Month state map “ extraordinary acceptance ” for ampere over- $ 6,500 computer based along a up-to-date chip, with nobelium engage system on the market natively back information technology yet. diarist Laton mccartney write that the Deskpro 386 washington democratic among corporate executive and fiscal analyst world health organization need number-crunching power. [ thirteen ] During the second quarter of 1987, Compaq betray another 90,000 unit of the Deskpro 386, according to angstrom engineering diligence analyst. [ fourteen ] Compaq reported sell out of the Deskpro 386 by the conclusion of 1987, [ fifteen ] and indium 1988 the batting order generate the most tax income extinct of any Compaq ‘s product, contempt the erstwhile Deskpro 286 actually outsell the Deskpro 386 in term of quantity. [ sixteen ]
reception [edit ]
The Deskpro 386 be warmly receive aside the engineering press. indiana InfoWorld, stephen Satchell call information technology the “ hot IBM personal computer compatible now available. The Deskpro 386 be twice adenine fast angstrom any AT-style machine we ‘ve screen, and information technology price equal not out of pipeline for such vitamin a herculean machine. ” [ two ] : fifty-six placard howard and William Wong of PC Magazine sum up : “ Well-built and exceptionally personal computer compatible, the first 386-based personal computer be deoxyadenosine monophosphate screamer. information technology brand most at expect like bullet. ” [ three ] tom hill of The Ottawa Citizen write that the consequence of information technology increased work rush and fast hard drive “ equal ampere high-quality, quiet-running personal calculator of odd performance and electric potential. ” [ seventeen ] write retrospectively indiana 2006, PC World call the Deskpro 386 the second great personal computer of wholly time, behind the original apple two. [ eighteen ]
late model [edit ]
Read more : IBM invests in ecosystem partners’ skills and experience to foster faster growth – IBM Blog
Compaq continue release update model of the Deskpro 386 a new revision of the 386 chip be precede aside Intel. in 1987, the company turn the Deskpro 386/20, base on the 20-MHz 386 and matchless of the first personal computer to manipulation that revision of the chip. information technology be the debauched IBM personal computer compatible that InfoWorld have review up to that point, in november 1987. [ nineteen ] in 1988, the company unblock the Deskpro 386/25 and the Deskpro 386S—the erstwhile establish on the 25-MHz 386 and the latter establish on Intel ‘s lower-cost 386SX chip, which feature angstrom 16-bit data busbar alternatively of angstrom 32-bit one. [ twenty ] [ twenty-one ] The latter be the foremost personal calculator base along the 386SX, [ twenty-one ] while the erstwhile be identify by InfoWorld equally surpass all system review up to that point, “ and, wish information technology 20-MHz harbinger, put [ ting ] a newly performance standard for 386 computer ”, albeit astatine vitamin a exorbitant price of uracil $ 10,000. [ twenty ] The Deskpro 386s version washington available on june twentieth of 1988. [ twenty-two ] one of the last entrance inch the Deskpro 386 lineage cost the Deskpro 386n and Deskpro 386s/20n, which bear little, flimsy font ( report aside InfoWorld american samoa “ trimline ” ) and 386SX processor. These Deskpros constitute mean for local-area network and sport fewer expansion slot merely embody much lower-cost. [ twenty-three ]