https://wiki.retrotechcollection.com/index.php?action=history&feed=atom&title=Atari_PC3 2026-09-24T10:28:49Z Revision history for this page on the wiki MediaWiki 1.46.0 https://wiki.retrotechcollection.com/index.php?title=Atari_PC3&diff=12787&oldid=prev 2026-09-23T20:48:28Z

<p>Rewrite and cite: five XT slots directly on the board (unlike the PC2&#039;s riser), 4.77/8 MHz switched in software, IEC C13 monitor outlet and 9-pin digital monitor port, real board numbers C100812/C103272, released summer 1988. Sources: atari-computermuseum.de, ataripc.net</p> <a href="https://wiki.retrotechcollection.com/index.php?title=Atari_PC3&amp;diff=12787&amp;oldid=10333">Show changes</a>

Josh https://wiki.retrotechcollection.com/index.php?title=Atari_PC3&diff=10333&oldid=prev 2026-03-30T01:31:28Z

<p>Created Atari PC3 article</p> <p><b>New page</b></p><div>{{Infobox computer<br /> | name = Atari PC3<br /> | image = <br /> | caption = Atari PC3<br /> | manufacturer = [[Atari Corporation]]<br /> | type = IBM PC Compatible<br /> | release date = 1988<br /> | discontinued = 1990<br /> | price = <br /> | cpu = Intel 8088-2 @ 8 MHz (switchable to 4.77 MHz)<br /> | memory = 640 KB RAM<br /> | storage = 2× 5.25&quot; 360 KB floppy drives or 1× floppy + 30 MB Seagate ST-238R HDD; optional 3.5&quot; 720 KB floppy<br /> | display = Onboard EGA graphics (NSI Logic EVC315-S or STMicroelectronics EGA, depending on board revision)<br /> | sound = PC Speaker<br /> | os = MS-DOS 3.21, GW-BASIC 3.2<br /> | predecessor = [[Atari PC2]]<br /> | successor = [[Atari PC4]]<br /> }}<br /> The &#039;&#039;&#039;Atari PC3&#039;&#039;&#039; was an IBM PC-compatible computer manufactured by [[Atari Corporation]], released in 1988. It was essentially an enhanced version of the [[Atari PC2]], shipping with a full 640 KB of RAM and typically bundled with a 30 MB hard drive, making it a more complete out-of-the-box solution.<br /> <br /> == Overview ==<br /> The PC3 continued the XT-class architecture of the PC1 and PC2, using the same Intel 8088-2 processor and the familiar Atari PC desktop case with five 8-bit ISA expansion slots. It represented the most fully-featured XT-class system in the Atari PC line, coming standard with 640 KB of RAM (the maximum for XT-class DOS systems) and a Seagate ST-238R 30 MB RLL hard drive.<br /> <br /> Like its predecessors, the PC3 retained Atari-specific features including the Atari ST-compatible mouse port and external floppy drive port. Some later production runs featured updated components, including an STMicroelectronics EGA chipset in place of the earlier NSI Logic EVC315-S, and an optional 3.5&quot; 720 KB floppy drive (Epson SMD-380) alongside or in place of the standard 5.25&quot; drives.<br /> <br /> == Specifications ==<br /> {| class=&quot;wikitable&quot;<br /> |-<br /> ! Component !! Details<br /> |-<br /> | Processor || Intel 8088-2 or AMD equivalent (depending on board revision), switchable between 8 MHz and 4.77 MHz<br /> |-<br /> | Co-processor socket || Intel 8087<br /> |-<br /> | RAM || 640 KB<br /> |-<br /> | Graphics || Onboard EGA controller — NSI Logic EVC315-S on early boards, STMicroelectronics EGA on later revisions. Supports EGA, CGA, and Hercules modes<br /> |-<br /> | Storage || 2× Chinon FZ-502 5.25&quot; 360 KB floppy drives or 1× floppy + Seagate ST-238R 30 MB RLL hard drive; optional Epson SMD-380 3.5&quot; 720 KB floppy drive<br /> |-<br /> | Hard drive controller || Adaptec ACB-2072 RLL controller<br /> |-<br /> | Expansion || 5× 8-bit ISA expansion slots<br /> |-<br /> | Ports || Mouse port (Atari ST compatible), external floppy drive port (Atari ST compatible), monitor port, RS-232 serial port, Centronics parallel port<br /> |-<br /> | Keyboard || Atari 83-key XT keyboard<br /> |-<br /> | Mouse || Atari PCM1 (relabelled Atari STM1)<br /> |-<br /> | Sound || PC Speaker<br /> |}<br /> <br /> == Bundled Software ==<br /> * Microsoft MS-DOS 3.21 (MS-DOS 3.3A on some later units)<br /> * GW-BASIC 3.2<br /> * Digital Research GEM Desktop EGA v2.2<br /> * GEM Write v1.01D<br /> * GEM Paint v2.0<br /> <br /> == Bundled Monitors ==<br /> The PC3 was typically sold with the Atari PCM-124 12&quot; EGA monochrome monitor, though later units were bundled with the Atari PCC 1415 14&quot; colour EGA monitor.<br /> <br /> == Upgrades ==<br /> Being an XT-era machine, upgrades were limited:<br /> * Intel 8087 co-processor (socket provided on motherboard)<br /> * NEC V20 CPU upgrade (requires desoldering the original 8088 processor, provides a modest performance improvement)<br /> * ISA expansion cards via five available 8-bit slots<br /> * Additional internal drives<br /> <br /> == See Also ==<br /> * [[Atari PC1]]<br /> * [[Atari PC2]]<br /> * [[Atari PC4]]<br /> * [[Atari PC5]]<br /> <br /> == External Links ==<br /> * [https://www.ataripc.net/pc3-8088/ AtariPC.net — Atari PC3 8088]<br /> * [https://binaryvalue.com/index.php/ibm-pc/atari-pcs BinaryValue — Atari PCs]<br /> <br /> [[Category:Atari Systems]]<br /> {{Navbox-AtariVintageComputers}}</div>

Josh