//c ENHANCED EPROM ROM CHIP APPLE IIC. ADDS UNIDISK 3.5! $12.00 + $4.65 s/h

$12.0 Buy It Now or Best Offer
free,30-Day Returns

Seller Store buggie4vrl
(5308) 99.6%,

Location: Gallup, New Mexico
Ships to: US,
Item: 221710345031

Restocking Fee:No
Return shipping will be paid by:Buyer
All returns accepted:Returns Accepted
Item must be returned within:60 Days
Refund will be given as:Money back or replacement (buyer’s choice)
Compatible Brand:For Apple
Apple:Apple
Type:Memory EPROM
Country of Manufacture:United States
Country/Region of Manufacture:United States
Vintage:Yes

LAST PHOTO FROM KANSASFEST CONFERENCE, JULY 2013 Two Steves: Steve Wozniak, inventor of Apple II, with me, Steve Buggie ENHANCEMENT ROM CHIPFOR APPLE IIC $12.00 each, plus $4.65 shipping to USA buyers (Worldwide overseas shipping: $17.00] 228 happy buyers can’t be wrong!No Biden-price -inflation; same $12.00 price since 2004 ! SPECIAL QUANTITY DISCOUNTSBuy THREE for $30.00 plus $4.65 total USA shipping ($10.00 each)Buy TEN for $90.00 plus $4.65 total USA shipping ($9.00 each) It enables use of the rare white-cased Unidisk 3.5 drive! The is a 28-pin custom ROM chip for the classic Apple IIC. It resembles the Apple brand enhanced ROM # 342-0033. Inside the IIC, the older UNENHANCED ROM is # 342-0277. The Enhanced ROM chip adds these features to your IIC: (1) Capability to operate the Unidisk 3.5″ 800K external disk drive. (2) The checkerboard self-test: Hold down the two Apple-keys at power- up; If enhanced, you will see a moving checkerboard pattern which ends with, “SYSTEM OK.” The self-test will identify any specificRAM memory chip that has gone bad. Other deficiencies are also identified. The checkerboard self-test is shown in the fourth photo. If you presently can get the checkerboard self-test with your IIc, then your computer is already enhanced and my ROM chip is not needed. (3) A customized brief one-two word message at the center-top of the opening screen. This message is displayed for threeseconds every time when the Apple IIc is powered up. A two-sided instruction sheet to install the chip is included. Essentially, you just replace the existing 28-pin ROM chip with this chip, then make two minor soldered changeson the IIC motherboard. A photocopy will be enclosed of Otto Linzmeyer’s article in the January 1988 issue of A+ magazine, “THE APPLE IIC FAMILY TREE,” which describes firmware/hardware differences among the three distinct versions of Apple IIC that were released (1984-1988). Also enclosed will be a photocopied section from the Apple IIc Technical Reference Manual (1985) that describes the Unidisk 3.5 ROM code that is contained in this chip. The Apple IIC Plus differs totally from the three earlier IIc models. If you bought a IIc CPU from me, then its ROM is already enhanced. Made in USA “PRINT PEEK” ROM TEST:”0″ ON THE SCREENThe enclosed article, “IIc Family Tree,”presents a keyboard test to identifywhich ROM version your IIc presentlyhas. First, turn on the computer. Thenpress CONTROL followed by RESET. The Basic prompt, a left-facing bracket ]will be displayed on the screen. Next,type: PRINT PEEK (64447) followedby RETURN. The computer’s responseidentifies which Apple //c you have: 255 Original (unenhanced) //c 0 Unidisk 3.5 //c 3 or 4 Memory-Expansion //c Installing the ROM chip purchased fromthis ad will upgrade your //c from the Originalversion to the Unidisk 3.5 version. It is impracticalto become a Memory-Expansion //c because thetwo earlier versions lack the motherboard socketfor the one meg Ram Express memory board. NEWS FLASH:ROM-ENHANCED IIC HARD DRIVEDecember 23, 2020A IIc user who bought this enhancedROM chip from me, reported that this chipenables the Apple IIc to operate a 32meghard drive, connected to the IIc at the DB-19external floppy drive socket. Can someone checkthis for me? I urged the buyer who reportedthis, to prepare a KansasFest presentation on it.Many Apple IIc users will be thrilled to confirmthat the ROM-enhanced IIc can operate an externalhard drive! Notify me as soon as possible, howthis capability can be achieved, and I will announceit in person at the upcoming KansasFest conference,at Kansas City MO, July 19-24, 2022. REFUND GUARANTEE FOR USA BUYERS AND ALSO FOR WORLDWIDE OVERSEAS BUYERS The IIc ROMs are all guaranteed to work! About 201 these ROM chips have already been sold. All are pre-tested prior to shipping, and I have had no complaints, so far, from buyers. CHOICE OF SCREEN-OPENER MESSAGES This ROM-encoded nine-character message appears at the top of the screen when power is first turned on. Either the standard IIc enhancement message: Apple //cor this alternative message:Canadaor this alternative message:Enhanced!or this alternative message:KFEST //c or this alternative message: Woz //c or this alternative message: 3.5” Disk or this alternative message: Obama //cor this alternative message:Gallup NMor this alternative message:Bugg //c HHHHHHHHHHHHHHHHHHHHH Send me an Ebay message to indicate your preference. If no preference is stated,then the opener message on your ROM chip will be the Enhanced! version. MY TWO USA EPROM BURNERSPRODUCE THE ROM CHIPSAn Apple IIe interface card, THE SUPER EPROM , created the original master ROM chips. Then, duplication of the master chip is done with GANGPRO-8, by Logical Systems Corp. of DenverCO. The GANGPRO-8 makes perfect ROM chips,in eight-chip batches, every time. Your newApple IIc enhanced ROM chip is entirelyMADE IN USA SPECIAL DISCOUNT FOR THE CANADIANAPPLE IIc ENHANCED ROM CHIP: TWOIIc CANADA ROMS $12.00 + S/HMy Irish ancestors farmed at New Brunswick Canada,1850 to 1900; Then they left Canada and resettled toMinnesota USA. The enhanced opening screen message,CANADA, at the top of the opening IIc screen, is nowavailable at half price: Two Canada IIc enhanced ROMsfor $12.00 plus shipping. This Canada IIc ROM specialcontinues indefinitely beyond July 1, 2022, Canada’sNational Day (Fete du Canada). SHIPPING COST: ONLYTHE ACTUAL POSTAGE!Some Ebay sellers conceal the actual postagecost; I have the software print the postage costat the top of the shipping label. If the actualpostage cost is $0.20 or more below what youpaid, I will refund the amount overpaid to yourEbay account, as soon as the package is mailed. QUANTITY SOLD: ADD 95 TO NUMBER STATED AT HEADING OF THIS AD I sold 95 of these IIc ROM chips in the first four years. But I completely sold out of my first batch, so Ebay then reset my quantity number to zero. So, my total number sold is 95 plus the total stated at the heading of the ad. USA shipping is $4.65. The shipping cost covers the ROM, the articles and otherprinted matter, and the enclosed diagnostic disks.Shipping is WORLDWIDE. Shipping will be via post office first class mail. Generous combined shipping discount (USA only): On hardware purchases, you pay the single largest shipping cost. Smaller hardware items in same parcel, will be shipped with no further cost! (USA only) Free local pickup at pickup at Gallup NM 87301. HHHHHHHHHHHHH 27th Annual Apple II KansasFest Conference July 14-19, 2015 Rockhurst University Kansas City MOPRESERVING FIRMWARE ON EPROMS: A KEY TO “APPLE II FOREVER” Stephen BuggiePsychology University of New Mexico, Gallup 705 Gurley Avenue Gallup NM 87301-6979 (505) 863-2390 (H) (505) 870-9805 (C) ABSTRACT Most computer equipment contain EPROMs in their circuits: CPUs, printers, interface cards, or peripherals. The EPROMchips contain firmware code to control operation of thedevice. An EPROM looks like a large IC chip: It is wide, with24 to 40 pins. There is a small round window in the center ofthe upper side of the chip, with a microlattice of fine metal wires visible through the clear quartz-glass window. TheEPROM chips can be erased and reconfigured by hours of exposure to ultraviolet light, followed by software-controlled”burning” of fresh code. The use of EPROMs allows the periodicupgrading of firmware. In my presentation, EPROMs and related hardware will be shown and discussed. Knowledgeabout EPROM technology should be shared among Apple IIdevotees because the EPROMS can go bad after years of service.The firmware code can be stored on floppy disks, and thenused to rejuvenate EPROMs that have gone bad. In the long run, spanning future decades, Apple II equipment will survive onlyif the firmware code on the EPROMs has been preserved on disks;once on disk, the code on could be preserved for indefinite archivingby recopying it to other long-lasting media such as CD-ROMs orflash drives. Apple II users should learn EPROM-burning skills,with the needed hardware, to create fresh copies of the firmwarecode for themselves and to be shared widely with others. HHHHHHHHHHHHHHHHHHHHHHHHH AVAILABLE NOW IN ASEPARATE EBAY AD:APPLE IIC BATTERY-PORTABILITY KIT Go to Ebay ad # 221447214363 $22.22 plus shipping 221447214363 The 16 ft. cord uses top quality wire: American-made red/black insulated stranded pure copper AWG-16 wire with DIN-7 female plug at one end, and 12v cigarette male plug (with LED and on-off push-button switch) at the other end. Includes wires and connectors to operate your Apple IIc outdoors, off-the- AC-power-grid! Do Apple II computing at the beach, on a mountain top, or at any campground, even when the campground has no AC 115v outlets! Use your Apple IIc with a car battery from the cigarette-lighter socket, _or_ with a jump-start DC 12v battery, _or_ with alligator clips directly from the 12v battery terminals. You will need to get a 12v color flat screen TV to use with your Apple IIc, new on Ebay from $150.00. My $22.22 battery portability kit supplies all the rest! This kit was demonstrated to Apple II experts at KansasFest, July 2014. HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH INTERNATIONAL: SALESTO OTHER COUNTRIES I will ship to other countries. I retain the post office receipt as proof of mailing.International mails in recent years have become very reliable, so I will replaceany ROM chip lost during shipping. Buyers have told me that Ebay’s “GlobalShipping Program” (GSP) is very expensive for small lightweight packagessuch as this ROM chip, or for small keyboard parts such as keyswitches or keycaps, so international first class mailing is preferred; even then, U.S. postage rates begin at $17.00 for most foreign countries beyond Canada. In mid-2020, Ebay has launched a special internationalshipping service, by which the seller ships to a trans-shipmentservice in CA or KY, from which it is carried to the foreign destination.Look at all my items offered for sale; combined shipping of two ormore items costs only slightly more than shipping a single small item. I must guess at the weight / postage cost. I will guess slightly high, but will refund any excess amount paid for postage, to the buyer’s Ebay account, immediately after the item has been shipped. ======================== Stephen Buggie, psychology professor, UNM-Gallup, Gallup NM 87301-6979

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