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2. Macintosh 512K - Wikipedia

   en.wikipedia.org/wiki/Macintosh_512K

   Mac 512K back panel. The Macintosh 512K is a personal computer that was designed, manufactured and sold by Apple Computer from September 1984 to April 1986. It is the first update to the original Macintosh 128K. It was virtually identical to the previous Macintosh, differing primarily in the amount of built-in random-access memory. The ...

3. Macintosh 128K/512K technical details - Wikipedia

   en.wikipedia.org/wiki/Macintosh_128K/512K...

   Protected memory was only added to Macintosh computers with the release of the Mac OS X operating system. According to Andy Hertzfeld, the Macintosh used for the introduction demo on January 24, 1984, was a prototype with 512k RAM, even though the first model offered for sale implemented just 128k of non-expandable memory. This prototype was ...

4. Macintosh 512Ke - Wikipedia

   en.wikipedia.org/wiki/Macintosh_512Ke

   Because Apple's official upgrades were costly, many third-party manufacturers offered add-on SCSI cards, as well as RAM upgrades, to achieve the same functionality. The new ROM allowed the computer to run much newer system and application software; though it loaded more data into RAM, it only slightly decreased the amount of available memory ...

5. Mac (computer) - Wikipedia

   en.wikipedia.org/wiki/Mac_(computer)

   Mac is a family of personal computers designed and marketed by Apple since 1984. The name is short for Macintosh (its official name until 1999), a reference to a type of apple called McIntosh. The current product lineup includes the MacBook Air and MacBook Pro laptops, and the iMac, Mac Mini, Mac Studio, and Mac Pro desktops.

6. HP ProBook - Wikipedia

   en.wikipedia.org/wiki/HP_ProBook

   The HP ProBook is a line of laptop computers made by Hewlett-Packard since 2009, [1] marketed to business users but with a list price lower than that of HP's higher-end EliteBook series. [ 2 ] History

7. Vortex86 - Wikipedia

   en.wikipedia.org/wiki/Vortex86

   The memory controller drops the ability to use SDRAM but increases the amount and speed of DDR2 memory it can drive to 1 GB and 333 MHz. The SoC adds the ability to function as a USB 1.1 client on 1 port and increases the embedded flash capacity to 2 MB.