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Topic: PCjr


In the News (Tue 14 Feb 12)

  
  IBM PCjr.   (Site not responding. Last check: 2007-10-04)
The operation was totally trivial: open the box, attach the power cord to the system unit, attach a monitor to the appropriate connector, put batteries in the keyboard, and turn on the system--less than five minutes from box to operation, and only one third more calories than attaching a video game to a TV set.
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.
www.atarimagazines.com /creative/v10n3/74_IBM_PCjr.php   (4011 words)

  
 THE IBM PCjr - A Home Version of the PC in 1983
The PCjr was IBM's attempt to market a home and student version of their more powerful PC business machine.
The PCjr was introduced on November 1, 1983 and sold for $998 with 64K of RAM or $1918 with 128K and a 5.25" floppy disk drive.
One misconception about this machine is that it was initially mouse-compatible, but the PCjr came out shortly before the Macintosh when mice were practically unknown.
www.cedmagic.com /history/ibm-pcjr-4860.html   (164 words)

  
 IBM PCjr computer   (Site not responding. Last check: 2007-10-04)
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.
The expansion and interface ports on the back of the PCjr are all non-standard - an attempt to either simplify, or control access - I don't know which, but no one liked it.
oldcomputers.net /ibm-pcjr.html   (567 words)

  
 Using the PCjr Color Display with the CGA/EGA
These are the pin assignments for the signals on the PCjr Color Display, and the corresponding pins on a PC Color/Graphics Adapter output connector.
In order to be able to use the PCjr display with a regular PC, it is necessary to provide an adapter cable, having a male 18 pin Berg connector at one end, and a male 9 pin D connector at the other.
Plug the header into the PCjr display cable....the A side of the cable connector is the one having the "D" on the metal shell.
member.newsguy.com /~ndaskal/pages/cms/jrdsply.html   (625 words)

  
 PC Enterprises' IBM PCjr Upgrade Catalog   (Site not responding. Last check: 2007-10-04)
While replacing the PCjr’s disk drive with a 3 1/2 inch disk drive is rather simple, you should be forewarned that once you replace your 51/4inch drive with a 31/2inch drive you will have no way to use your existing 51/4inch diskettes.
For this reason, PCjr users rarely replace their 5 1/4inch drive, unless they have access to another computer that can be used to convert their software.
When the PCjr sends information to its printer port, the PCjr doesn’t care whether the device that receives the information is a printer or a disk drive.
www.pccomponentscompany.com /catjr/jr007b.htm   (1537 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   (331 words)

  
 PCjr Pictures   (Site not responding. Last check: 2007-10-04)
Most PCjrs came with a diskette drive and 128K which is the bare minimum to make a useful DOS machine.
This PCjr (also a 4860-067) is shown with the "chiclet" keyboard, a cartridge in the left cartridge slot, and the PCjr Thermal Printer.
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   (752 words)

  
 PCjr Club Home Page   (Site not responding. Last check: 2007-10-04)
The Eugene PCjr was the last active club left in the nation that was solely devoted to the IBM PCjr computer.
There are still PCjr enthusiasts who are interested in supporting the machine and the people who use it.
We'd like to thank all of the PCjr owners who supported the "mighty peanut" and were members early on of PCjr clubs throughout the country.
www.efn.org /~pcjrclub   (181 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.
And the wireless keyboard was very convienent; you could type while reclining in your favorite easy chair, and since there was a RCA jack for composite color output to TV, you could hook it up to the family TV for everyone's enjoyment.
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   (3196 words)

  
 The Free Information Society - DOS Technical Information   (Site not responding. Last check: 2007-10-04)
This may be used to mix modes on the display; for example, characters of two difference sizes might be displayed 2) Modes 8-10 are available on the PCjr, Tandy 1000, and PS/2 3) IBM claims 100% software and hardware emulation of the CGA with the MCGA chipset.
6) The PCjr Video Gate Array uses a user-defined block of main system RAM from 4 to 32k in size instead of having dedicated memory for the display.
Vertical retrace may be ignored when writing to the PCjr.
www.freeinfosociety.com /computers/dostechnical.html   (3798 words)

  
 Disinfotainment: Christmas 1984: The Great Apple//c vs. PCjr Battle   (Site not responding. Last check: 2007-10-04)
Some of the PCjr's programs came on ROM cartridges since there was only 1 floppy disk drive, with no room for both programs and data.
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.
I explained that we could not leave the PCjr in an operating condition, customers would shoplift the expensive ROM cartridges, so we had to keep them locked up and only demo the machine on demand.
ceicher.homeunix.com /archives/2002/12/christmas_1984.html   (2361 words)

  
 Upgrading the PCjr to 640k
I have used this procedure to upgrade my PCjr to 640k, and have found it to be better than the others I have seen.
Joel Mock If you have upgraded your IBM PCjr to 256K with IBM's 128K memory sidecar you are in luck.
It may be advisable to place a small piece of electrical tape over the 8 pins of the DIP switch on the foil side of the board.
member.newsguy.com /~ndaskal/pages/cms/640kpc.html   (1126 words)

  
 IBM PCjr   (Site not responding. Last check: 2007-10-04)
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: 2007-10-04)
About this computer: this jr has 128k, a parallel port side-car, and Cartridge BASIC.
Click here to view all comments for the IBM PCjr and to leave your own.
Click here to view comments about other IBM computers.
obsoletecomputermuseum.org /ibmpcjr   (196 words)

  
 OLD-COMPUTERS.COM : The Museum
Since the PCjr didn't have NMI, you couldn't enter keystrokes into the keyboard buffer while disk access was occuring.
The PCjr joysticks had little switches that would disengage the auto-centering for each axis.
The PCjr could handle most DOS of it's era that you put on the floppy during boot.
www.old-computers.com /MUSEUM/forum.asp?c=186&st=1   (615 words)

  
 [No title]
It was noted that the PCjr has a better monitor than the regular PC and there have been discussions of how to attach the PCjr monitors to PC and XT's.
Software incompatibilities have been a bane to PCjr users, especially those who wanted to bring their work home.
There have been notes in Jr-Msg (the PCjr echo area) on fixes to run DBase III+, MS QuickBasic 3 and Auto-CAD on the PCjr.
www.textfiles.com /fidonet-on-the-internet/878889/fido0442.txt   (5049 words)

  
 The IBM 4860 (PCjr)   (Site not responding. Last check: 2007-10-04)
Several of the different features of the PCjr included a wireless keyboard that operated on batteries, an external AC adapter to power the computer and the equivalent of expansion slots were called "sidecars".
There were 2 cartridge slots for ROM and something else called PCjr I/O connectors for connecting standard and optional features.
If you are looking for files for your PCjr, goto this site and click on PCjr downloads, there is quite a few programs and files to download from this site.
alienc.netcentre.ca /gallante/ibmcpu/4860.html   (333 words)

  
 [No title]   (Site not responding. Last check: 2007-10-04)
Tand-Em is a Tandy 1000 and IBM PCjr emulator for 80386 (or higher)-based PCs.
The PCjr and Tandy 1000 were PCs that had enhanced graphics and sound well before EGA or Adlib came out, and due to the Tandy's popularity in the states, many games were programmed to take advantage of those enhanced graphics and sound.
For more complete information on the PCjr and Tandy 1000, visit The Oldskool Shrine to The IBM PCjr and Tandy 1000.
www.oldskool.org /pc/tand-em   (287 words)

  
 IBM PCjr : Keyboard Adventure puzzle
When the PCjr hit the market, many purchasers had never seen a computer before.
Many USERS were expected to be children who had never seen any kind of keyboard 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   (932 words)

  
 IBM PCjr   (Site not responding. Last check: 2007-10-04)
The IBM PCjr was IBM's stab at the home market.
To this point in the 1980's, they had made solely business machines.
But if you copy it with my written permission it is okay.
www.vassmer.com /computermuseum/ibmpcjr.html   (144 words)

  
 [No title]
Msg 41875 is 04 line(s) on 05/31/89 from JAMES SCHMIDT to WARD CHRISTENSEN re: R/MODEL/TYPE FOR PCJR I knew it !
Another msg of yours (to ALL) queried about CGA emulation on a PCjr.
Someone uploaded such a beast over on the BBS I run, though I haven't looked at it in a year or so, and then only in my role as sysop to check before releasing.
www.textfiles.com /bbs/CBBS/1989/890601.ch   (556 words)

  
 IBM PCjr - OneLook Dictionary Search   (Site not responding. Last check: 2007-10-04)
We found 3 dictionaries with English definitions that include the word IBM PCjr:
Tip: Click on the first link on a line below to go directly to a page where "IBM PCjr" is defined.
IBM PCjr : Free On-line Dictionary of Computing [home, info]
www.onelook.com /cgi-bin/cgiwrap/bware/dofind.cgi?word=IBM+PCjr   (81 words)

  
 ibm pcjr pc museum
Quote from Spinnaker Software chairman William Bowman: "We're just sitting here trying to put our PCjrs in a pile and burn them.
Summer 1984, IBM introduces a new keyboard for the IBM PCjr, offering a free upgrade to all who want it.
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)

  
 Antique Computer Virtual Museum -IBM PCjr-   (Site not responding. Last check: 2007-10-04)
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.
The computer itself is sitting on top of an enlcosure which contains a Seagate 20meg MFM hard drive which attaches to the inside of the jr.
www.nothingtodo.org /classiccmp/pcjr.htm   (241 words)

  
 DigiBarn Blogs: DigiBarn Computer Museum General Blog
Wow, be it ever so humble, there's no place like a good home for the PCjr.
Myself and another individual are taking over the records of the last PCjr Club left (Eugen PCjr CLub in Eugene OR), and we have both been working on our perspective sites to try to bring back some level of knowledge of the PCjr as classic computing is coming back.
I have about 7 PCjr's, all but 1 are in working condition, some with drive expansion chassis units and some other odds and ends that make life a bit more enjoyable while toying with the PCjr.
www.digibarn.com /weblog/blogger1.html   (2482 words)

  
 Untitled
This is a little more fun, and requires the following PCjr setup for optimal performance:
I have successfully gotten this way of utilizing IRC to work with the PE3-10BT.
have not yet tested the ability of the PCjr to work with Trumpet or connect online
www.micro-zone.com /chat.htm   (273 words)

  
 Searching for PCjr software title: MasterType (Bounty)   (Site not responding. Last check: 2007-10-04)
JP I will give a look through my collection of stuff.
Brian JP Hindin wrote: Greetings; I've had a request from a friend who is trying to track down a copy of MasterType for PCjr.
He's willing to pay a reasonable bounty for it, but isn't going to pay a Lords ransom.
www.classiccmp.org /pipermail/cctalk/2003-May/022249.html   (121 words)

  
 Matthews and Matthews (1985) Word processing for the IBM PC and PCjr, and compatible computers
Matthews and Matthews (1985) Word processing for the IBM PC and PCjr, and compatible computers
Word processing for the IBM PC and PCjr, and compatible computers
To view the the latter's ratings, click on Chapters/Papers/Articles in the STATISTICS box, select a publication from the list that appears, and then click on either Quality or Interest in that publication's STATISTICS box.
www.getcited.org /?PUB=102371667&showStat=Ratings   (105 words)

  
 The Complete Guide to Your IBM PCjr: Douglas Hergert: ISBN 0895881799
The Complete Guide to Your IBM PCjr: Douglas Hergert: ISBN 0895881799
The Complete Guide to Your IBM PCjr (1st edition)
This book is part of the Sybex Computer Books.
www.bestwebbuys.com /0895881799   (82 words)

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