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The ProFile (codenamed Pippin) was the first hard disk drive produced by Apple Computer, initially for use with the Apple III personal computer. The original model had a formatted capacity of 5 MB and connected to a special interface card that plugged into an Apple III slot. In 1983, Apple offered a ProFile interface card for the Apple II, with software support for Apple ProDOS and Apple Pascal.
Additionally, in 1983, Apple introduced the Lisa computer, which was normally sold with a ProFile. The ProFile could be connected to the built-in parallel port of the Lisa, or to a port on an optional dual-port parallel interface card. Up to three such interface cards could be installed, so in principle up to seven ProFile drives could be used on a Lisa.
The 5 MB ProFile was Apple's first hard drive, and was introduced in September 1981 at a price of US$3,499. Later a 10 MB model was offered, but required an upgraded PROM/interface card to recognize the additional 5 MB.Internally, the ProFile consisted of a bare Seagate ST-506 stepper motor drive and mechanism, without the usual Seagate electronics, a digital and an analog circuit board designed and manufactured by Apple, and a power supply.
Later Lisa models could be configured with an internal 10 MB "Widget" voice-coil drive with a proprietary controller designed and built entirely by Apple, but the Widget was never offered as an external product for use with other Apple computers.
Apple did not offer another hard drive until it released the Hard Disk 20 designed specifically for the Macintosh 512K in September 1985 which could not be used on the Apple II or III families, or Lisa series. The ProFile could not be used on the Macintosh or the Apple IIc computer (for which Apple never offered an external hard disk drive of any kind).
By September 1986, the ProFile would be superseded by the introduction of the first cross-platform Hard Disk 20SC SCSI-based drive for the Macintosh and interface card for the Apple II family (excluding the IIc series, which had no SCSI interface of any kind) and Lisa/XL series.

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  1. helix6sk

    Savage 10 .308 Winchester, Varmint Profile, Threaded, AICS Mags

      1. For Sale
      2. For Trade
    • $700
    • Redmond
    • Oregon
    This is my first precision gun I ever put together, ER Shaw barrel, 1:10 twist, EGW scope base, Accurate Mag bottom metal, standard Savage stock, Rifle Basix trigger. Great shooter, I've just moved on to more expensive stuff. Would make a great starter rifle if you're just getting into long...
  2. HunterC

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      1. For Sale
      2. For Trade
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    • Oregon City
    • Oregon
    High profile 30mm utg scope rings New in box 2O$ or a box of 308/6.5cm Meet at afs
  3. G

    Ballistic Advantage 5.56 Hanson Profile Upper

      1. For Sale
    • $300
    • Ridgefield
    • Washington
    New unfired 16” Ballistic Advantage Hanson profile upper. Chambered in 5.56 with an 1:7 twist. Items added: A2 flash hidder Ballistic Advantage nitrite bcg BCM Gunfighter charging handle
  4. O

    How to change my profile location.

    Can someone please tell me how to change my profile location? I have looked and I must be missing something.
  5. JD42

    Faxon .308 pencil profile 18 in barrel

      1. For Sale
    • $150
    • Salem
    • Oregon
    I have an excellent condition Faxon 18 in .308 barrel. QVC nitrated. Comes with a Aero gas block and gas tube. Shipped $150. PayPal or money order. I can do a face to face in Salem.
  6. BradC

    Ballistic Advantage 16" 308 Barrel, Tactical Gov't Profile, Midlength

      1. For Sale
    • $140
    • Gladstone
    • Oregon
    I have a very lightly used Ballistic Advantage 16" 308 Barrel, with the tactical government profile, midlength gas system. Not sure on exact round count but it's going to be a bit less than 200rnds, and kept clean. Shoots great and functions great, I just initially built out an AR10 with it and...
  7. ScatPackLife

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      1. For Sale
    • $100
    • NE Portland
    • Oregon
    For sale: Faxon Bolt Carrier Group - M16, 5.56 Bolt, TIN PVD coated. Price: $100 Condition: Other than dry cycling a number of times it's brand new, never fired. There are minor finish blemishes on the key that you can see pictured, the carrier and bolt are like new. • PM for inquiries [I...
  8. matts

    Savage 308 barrel , sporter profile?

      1. For Sale
      2. For Trade
    • $50
    • Ridgefield
    • Washington
    I have the heavy barrel on my savage, i would like to swap into a lighter weight one, and shorten it and thread it. Unless someone here does shortening, fluting and threading.... Matt
  9. eldbillbo

    Bushmaster Chrome Lined M4 profile Barrel with a flaw.

      1. For Sale
    • $90
    • Oregon City
    • Oregon
    The pin hole to permanently attach the flash hider was drilled all the way through. Sold as is
  10. benja455

    WTS: Ballistic Advantage 16.1" 10/22 BULL PROFILE, 1/16 TWIST, THREADED, PREMIUM SERIES

      1. For Sale
    • $100
    • Burien
    • Washington
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  11. arakboss

    Done  Ballistic Advantage 18" .308 Heavy Profile Rifle Length Barrel Premium Series $80 plus shipping.

    https://ar15discounts.com/products/ballistic-advantage-18-308-heavy-profile-rifle-length-barrel-premium-series-110-twist/?
  12. YellALot

    .750 Low Profile Adjustable Gas Block

      1. Want to Buy
    • Auburn
    • Washington
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  13. salmon creek gary

    Free Money: Facebook "Consumer Privacy User Profile Litigation" Settlement? WTF is that, anyway?

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  14. eldbillbo

    LR308 Low Profile for LR308 High Profile upper reciver.

      1. For Trade
    • Ore
    • Oregon
    I have one of the nicer older LR308 low profile upper receivers it does not mate up with my rail. Would like to trade it for one that does. Just trade receiver for receiver but I would be willing to sell the entire upper or just the reciever to buy the one I need.
  15. AdoboArsenal

    13.9" BA Hanson Profile complete upper build P&W

      1. For Sale
    • $550
    • Humble
    • Other
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  16. J

    3 Ballistics Advantage AR-10 .308 government profile barrels. $150 each

      1. For Sale
    • $150
    • Sherwood
    • Oregon
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  17. cityrice

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      1. For Trade
    • Saint Helens
    • Oregon
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  18. arakboss

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  19. arakboss

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    https://www.cdnnsports.com/firearms/radical-firearms-socom-ar15-5-56-rpr-rail-system-radrf00028.html
  20. A

    Bcm low profile gas block .750

      1. For Sale
    • $45
    • downey
    • Other
    brand new bcm low profile gas block .750 zelle, paypal ff
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