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	IBM PCjr - Wikipedia, the free encyclopedia
		The IBM PCjr was a relatively inexpensive home computer of the 1980s, and it was IBM 's first attempt to enter the educational and home computer markets.
		The PCjr was expected to change the market in a similar way that the IBM PC changed the business market, but it was never well received.
		The original rubber chiclet keyboard, similar to that of a pocket calculator, was widely criticized as feeling cheap and being difficult to type on; it was later recalled and replaced with a conventional keyboard.
	en.wikipedia.org /wiki/IBM_PCjr (715 words)

	IBM PC - Wikipedia, the free encyclopedia
		IBM hoped to maintain their position in the market by royalties from licensing the BIOS, and by keeping ahead of the competition.
		The original 1981 IBM PC's keyboard was severely criticised by typists for its non-standard placement of the return and left shift keys.
		The original IBM PC used the 7 bit ASCII alphabet as the basis, but in addition this was extended to an 8 bit somewhat haphazardly collected set of characters unique for the IBM PC.
	en.wikipedia.org /wiki/IBM_PC (2102 words)

	IBM PCjr computer
		Following the success of the IBM PC business computer three years earlier, IBM attempted to capture the home market as well, with the IBM PCjr.
		The PCjr was based on the same technology as the PC, and was compatible enough to run most of the software applications written for the PC.
		The now infamous PCjr keyboard was quickly replaced by IBM, but the original "chiclet" style had tall, hard plastic (not rubber) keys which made touch-typing virtually impossible.
	oldcomputers.net /ibm-pcjr.html (567 words)

	IBM PCjr.
		Only a little: the PCjr is somewhat slower than previous IBM PCs, it can't support the 8087 arithmetic processor, and the current limitations on memory and disk may prevent the use of some large programs and data files.
		On the PCjr you rotate a lever counter--clockwise to engage the mechanism; the same lever blocks the entry slot so the disk can't be removed until the lever is flipped back.
		IBM calls the 62-key unit "a cordless, portable, hand-held device [utilizing] full travel, carbon contract/rubber dome technology for long wear and reliability.' Critics say it is a cheap, "Chiclet' keyboard, unworthy of a "real' computer, with the wireless business a superfluous gimmick.
	www.atarimagazines.com /creative/v10n3/74_IBM_PCjr.php (4011 words)

	The Free Information Society - DOS Technical Information (Site not responding. Last check: 2007-10-14)
		IBM had originally intended to use Digital Research's CP/M operating system, which was the industry standard at the time.
		An agreement was reached between the two, and "IBM PC-DOS 1.0" was ready for the introduction of the IBM PC in October 1981.
		IBM's default is to turn the adapter off when it is being updated, ie "flickering" when the display is scrolled.
	www.freeinfosociety.com /computers/dostechnical.html (3798 words)

	PC Enterprises' IBM PCjr Upgrade Catalog (Site not responding. Last check: 2007-10-14)
		While the IBM Replacement Keyboard has the same number of keys, it is very popular because it is compact and easy to use.
		The PCjr keyboard cable allows the keyboard to be used without batteries, and without the keyboard facing the system unit.
		While PCjr 101-key keyboards sold by PC Enterprises may look similar to keyboards that you see elsewhere, the design and the connectors are different.
	www.nearbyrestaurants.com /catjr/jr012.htm (716 words)

	[No title]
		IBM was banking on these enhancements to propel the PCjr to the top of the heap, so to help it along they hired Sierra specifically to do a next-generation PCjr game that would use the extra colors and sound.
		The keyboard, what IBM thought would be considered a great innovation, was ultimately its largest drawback--while it claimed you could be 6 feet or more away from the computer in wireless mode, most people found they had to be no further than about two or three feet from the computer.
		The Tandy 1000 was indeed a strange beast: The graphics and sound were mostly compatible with the PCjr's enhanced graphics and sound, but the keyboard and joystick connections were neither PC nor PCjr compatible--they were large, round, circular DIN connectors that were pin-for-pin compatible with the TRS-80 line.
	www.oldskool.org /shrines/pcjr_tandy (3201 words)

	PCjr History
		Also announced was the PCjr Color Monitor, a 14 inch RGB display with a 0.43 dot pitch and a 60hz refresh rate.
		Other machines (early IBM PC clones, the Apple Lisa, the Coleco Adam, some Atari machines, etc.) were available, but not as popular as the Apple, the Commodore, and the IBMs.
		The PCjr was going to be IBM's machine for the home market; vastly superior to a Commodore 64, good competition for an Apple ][, and having most of the virtues of an IBM PC.
	www.brutman.com /PCjr/pcjr_history.html (1009 words)

	IBM 5150 Personal Computer
		The IBM Personal Computer ("PC") was not as powerful as many of the other personal computers it was competing against at the time of its release.
		This wasn't IBM's first attempt at a personal, or micro-computer, although it is by far their most successful.
		This time IBM was determined to do it right - in order to save time and money, instead of developing their own hardware and software, they used already available off-the-shelf components.
	oldcomputers.net /ibm5150.html (654 words)

	IBM images.
		In the PCjr, however, the video memory is alternately accessible to the CPU and the video display chip.
		Like many of the IBM offerings for this machine, the product is packaged in a plastic box large enough to hold a cassette, a slim instruction manual, a paper template and a disk.
		The IBM PC has satisfied many an executive's colorful pie chart dreams with the CIRCLE instruction available from Basic A. This command allows quick and easy creation of a colored circle anywhere on the screen.
	www.atarimagazines.com /creative/v10n6/221_IBM_images.php (3284 words)

	PCjr Pictures (Site not responding. Last check: 2007-10-14)
		This PCjr (also a 4860-067) is shown with the "chiclet" keyboard, a cartridge in the left cartridge slot, and the PCjr Thermal Printer.
		IBM didn't include a parallel port with the machine; it was an extra option.
		The first "Exploring the IBM PCjr", which was part of a series of diskettes designed to introduce people to their PCs.
	mail.magnaspeed.net /~mbbrutman/PCjr/pcjr_pictures.html (619 words)

	Disinfotainment: December 23, 2002 Archives (Site not responding. Last check: 2007-10-14)
		IBM desperately wanted to damage Apple by killing their lucrative Apple II cash cow, at a time when investment in the new Macintosh was a heavy drain on Apple's financial resources (and let's not even mention the Lisa debacle).
		Notice that the PCjr was inactive and had a blank screen when he first approached it, but the //c had a nice demo disk that attracted him to interact with the machine.
		The IBM VP seemed to agree that any new sales effort was too little, too late, but he asked for a copy of Apple's demo disk, so the owner quickly popped it out of the //c and handed it right to him.
	ceicher.homeunix.com /archives/2002_12_23.html (2237 words)

	Message Board (Site not responding. Last check: 2007-10-14)
		I suppose IBM paid a large part (if not all?) of the development costs, in exchange of the IBM publishing in their own case and design.
		IBM did not ask for any sort of exclusivity in their agreement, which allowed us to to market the code, with almost no changes, on the Tandy 1000.
		I was one of the 2 testers at IBM for it.
	www.sierrafan.com /bbs/BBSTopicPage.asp/t/3528/p/1 (600 words)

	PC Enterprises' IBM PCjr Upgrade Catalog (Site not responding. Last check: 2007-10-14)
		While IBM was not the first company to make a personal computer, IBM gained immediate respect because the company was the world's most successful manufacturer of mainframe computers.
		IBM named their computer the IBM Personal Computer Model 5150, although most people simply called it the IBM PC.
		The IBM Personal Computer XT Model 5160 was essentially an IBM PC with an internal storage device called a fixed disk (hard drive), and the IBM Personal Computer PC jr Model 4860 which was IBM's entry into the home computer market.
	pccomponentscompany.com /catjr/jr002.htm (905 words)

	OLD-COMPUTERS.COM : The Museum
		After launching the IBM PC (and its great success), IBM tried to stand out a standard for home computers, it created then the PC junior, which itself is a "light" version of the PC especially designed for home activities.
		Two IBM PC junior models were available: a basic one and a enhanced one (supplied with 128k, 30 programs, a 5.25" floppy disk drive [360 KB] and its controller).
		Contrary to the IBM PC, the power supply is not integrated to the case, but is external.
	www.old-computers.com /museum/computer.asp?st=1&c=186 (366 words)

	IBM PCjr
		The IBM PCjr is a personal computer, introduced in 1984 and sold through 1985.
		As a result, the PCjr didn't sell well, and it is considered to be one of the bigger flops in the personal computing industry.
		The lack of information about the PCjr probably isn't harming anybody; I just feel that the machine shouldn't be relegated to the "bit bucket." ("Bit bucket" is programmer's term for "lost.") These machines were interesting, and reading about them can give one a sense of perspective when contemplating today's 1.2 gigahertz behemoths.
	mail.magnaspeed.net /~mbbrutman/PCjr/pcjr.html (332 words)

	PCjr Hardware
		IBM tried to build in all of the input/output ports a home user could ever want, which should have reduced complexity for the home user.
		A cheap solution for a reset switch on the PCjr was to wire a momentary switch to the particular landing pads of a cartridge slot which caused this behavior.
		PCjr owners who used external modems sometimes had to trick the machine to rename the external serial I/O port as COM2, so that software would not get confused about the ports and IRQs it was supposed to use.
	www.brutman.com /PCjr/pcjr_hardware.html (3876 words)

	The IBM PCjr
		November 1983 saw the birth of the IBM PCjr.
		As recently as 1997, you could still order parts from IBM for the PCjr but they have recently switched parts and service over to a third-party company in the United States.
		I have three PCjr's in my collection, the most interesting of which has an additional floppy and increased RAM in a box that sits on top of the regular unit.
	www.suite101.com /article.cfm/3496/31060 (583 words)

	IBM PCjr (Site not responding. Last check: 2007-10-14)
		The IBM 4860 PCjr is remembered as a rather spectacular failure.
		The only way to expand a PCjr is via snap-on "sidecars" which contain things like expansion RAM, additional I/O ports, etc. There are two internal "expansion slots"; one is dedicated to a memory/display card, and the other is dedicated to a modem.
		Here are some rare PCjr boxed accessories, including a joystick, the Serial Adapter Cable (which allowed the use of standard serial devices instead of those built for the PCjr's bizarre cable pinout scheme), the IBM Color Display Adapter Cable (ditto), and the PCjr Television Adapter (RF modulator).
	www.computercloset.org /IBMPCjr.htm (325 words)

	IBM PCjr (Site not responding. Last check: 2007-10-14)
		Produced from 1983 to1985, this is IBM's attempt at penetrating the "home computer" segment of the market.
		A smaller version of the IBM PC, the jr featured a tiny battery operated "Freeboard" keyboard which operated with no wires, through sensors.
		Click here to view all comments for the IBM PCjr and to leave your own.
	obsoletecomputermuseum.org /ibmpcjr (196 words)

	PC Enterprises' IBM PCjr Upgrade Catalog (Site not responding. Last check: 2007-10-14)
		The PCjr is a genuine IBM computer that has proven itself to be one of the most reliable computers ever made.
		Since the failure rate of the PCjr disk drive is much greater than that of the disk drive controller card, replacing the disk drive is a reasonably safe bet.
		A complete PCjr system with DOS v3.3, 640KB of memory, IBM’s improved replacement style keyboard, two joysticks, PCjr Starter Diskette, Guide to Operations manual, power transformer, and a reconditioned PCjr Color Display can be purchased for $299 while the supply of parts lasts.
	pccomponentscompany.com /catjr/jr016.htm (2187 words)

	Timeline of Microcomputers (1984-1986)
		IBM announces the PC AT, a 6MHz 80286 computer using PC-DOS 3.0, a 5.25-inch 1.2MB floppy drive, with 256KB RAM, for US$4000, which doesn't include hard drive or monitor/card.
		IBM announces that it will cease production and promotion of the IBM PCjr.
		IBM announces the IBM RT Personal Computer, using RISC-based technology from IBM's "801" project of the mid-70s.
	www.fortunecity.com /marina/reach/435/comphis5.html (2663 words)

	AGI Specifications 3.0: Sound Resources (Site not responding. Last check: 2007-10-14)
		According to Donald B. Trivette, author of ``The Official Book of King's Quest'', a year before the IBM PCjr was announced IBM asked Sierra to create a game that would show off the new computers color graphics capabilities.
		IBM supplied the company with a prototype Junior, and Roberta set to work designing a new type of adventure game.
		This is important because the IBM PCjr had a different method of sound generation than the IBM compatibles of today.
	www.classicgaming.com /agisci/agispecs/agispecs-9.shtml (3708 words)

	IBM PCjr (Site not responding. Last check: 2007-10-14)
		The IBM PCjr was IBM's stab at the home market.
		This made it look like a wierd hybrid between a full blown IBM PC and an Atari.
		These computers were very expandable with the ability to upgrade memory, add a second disk drive, among other things.
	www.vassmer.com /computermuseum/ibmpcjr.html (144 words)

	IBM PCjr : Keyboard Adventure puzzle
		IBM PCjr may have Slip-Ups on our companion site Slipups.com.
		When the PCjr hit the market, many purchasers had never seen a computer before.
		To get these folks on board, the PCjr provided the Keyboard Adventure, a program that teaches a new user the functions of a computer keyboard.
	www.eeggs.com /items/40624.html (779 words)

	IBM PC jr Model 4860 Computer Components and Service
		Parts for the IBM PCjr system are no longer being manufactured.
		Allows some software to operate in 16 colors that ordinarily would be in only 4 color CGA on the PCjr, such as Battle Chess and Zany Golf.
		Parts shipped in advance of receipt of bad parts require a 100% core charge to be refunded provided bad parts are received within 30 days.
	www.c-reset.com /pcjr.html (1118 words)

	IBM PCjr (Site not responding. Last check: 2007-10-14)
		< computer > ( IBM PC Junior) A floppy disk -based home computer with an Intel 8088 CPU and a chiclet keyboard, released in November 1983.
		The PCjr could be expanded to have two floppy drives and 640 kilobytes of RAM using sidecar s.
		Some even had a mouse and could run drawing programs with popup menu s.
	www.linuxguruz.com /foldoc/foldoc.php?IBM+PCjr (102 words)

	ibm pcjr pc museum
		Summer 1984, IBM introduces a new keyboard for the IBM PCjr, offering a free upgrade to all who want it.
		1985, IBM announces that it will cease production and promotion of the IBM PCjr.
		The PCjr came with two cartridge ports, here is the BASIC cartridge->Notice the Copyright by Microsoft Corp. 1981.
	www.fortunecity.com /marina/reach/435/ibmjr.htm (116 words)

	Skattabrain: Compute!'s Mapping the IBM PC and PCJR (Site not responding. Last check: 2007-10-14)
		Compute!'s Mapping the IBM PC and PCjr is also available.
		Programmer's Technical Reference for MSDOS and the IBM PC : Besucher dieser Seite: Programmer's Technical Reference for MSDOS and the IBM PC USA copyright TXG 392-616 ALL RIGHTS RESERVED...
		All the 130XE's Memory IBM PC/PCjr One-Liner Frontier 128 Apple...
	www.skattabrain.com /css-books-plain/0942386922.html (602 words)

	Antique Computer Virtual Museum -IBM PCjr- (Site not responding. Last check: 2007-10-14)
		The IBM PCjr was IBM's attempt to penetrate the home computer market.
		The IBM PC was still priced rather high so the PCjr was made in order to be more price competitive with other companies.
		It also has an external floppy drive and special controller card that is not working right as well as a 256k memory card and printer adaptor.
	members.aol.com /suprdave/classiccmp/pcjr.htm (176 words)

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