Welcome to Boardsort™ - Learn - Sell - Profit -

Learn to properly Sort, Sell, and Profit from your electronic scrap material.
It is currently Fri Apr 19, 2024 12:23 pm


Post new topic Reply to topic  [ 2 posts ] 
Author Message
 Post subject: coprocessors
PostPosted: Sun Feb 02, 2020 11:40 pm 

Joined: Tue Jan 28, 2020 11:28 pm
Posts: 10
Where do the math coprocessors fall in the price table, 8087, 80287. What about the 80286 ceramic CPU?


Top
 Profile  
 
 Post subject: Re: coprocessors
PostPosted: Mon Feb 03, 2020 2:42 am 
Site Admin
User avatar

Joined: Tue Feb 03, 2015 6:57 pm
Posts: 9761
Location: Low DOS
The same place they would be as an 86. An 80487 is a 486.

An 80859 is an 8086 class if it has a gold cap, and pentium/Mac ceramic if it doesn’t.

An 8087, b, c, n, or y (capped) is 8086. A d, e, x series (plastic no cap nickel-tin pins) is an IC.


286 exists in multiple packages as a ceramic. The quad with pins and a gold cap is 486. The long rectangular ceramic with gold cap and gold pins, and gold line, is an 8086. Plastic rectangle with gold pins Email Chris a photo.

Generally a photo helps us here. Even CPUs everyone knows (like plastic 486) exist in variations that won’t be what the list says. It’s always best to post top and bottom pics of anything pre-pentium just to be sure as these were made well beyond the ceramic days (even now).

_________________
42 6F 61 72 64 73 6F 72 74 2E 63 6F 6D


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC - 5 hours [ DST ]


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to: