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One change from CHRP for example was to boot classic Mac OS using a 4MB Mac OS ROM file stored on disk. The original iMac used a PowerPC G3 (PowerPC 750) processor, which also ran in Apple's high-end Power Macintosh line at the time, though at higher speeds. It sold for US$1,299, and shipped with Mac OS 8.1, which was soon upgraded to Mac OS 8.5. The Raspberry Pi is a tiny and affordable computer that you can use to learn programming through fun, practical projects. Join the global Raspberry Pi community.

The Macintosh SE/30 is a personal computer designed, manufactured and sold by Apple Computer from January 1989 to October 1991. It is the fastest of the original black-and-white compact Macintosh series.

The SE/30 has a black-and-white monitor and a single Processor Direct Slot (rather than the NuBus slots of the IIx, with which the SE/30 shares a common architecture) which supported third-party accelerators, network cards, or a display adapter. The SE/30 could expand up to 128 MB of RAM (a significant amount of RAM at the time), and included a 40 or 80 MB hard drive. It was also the first compact Mac to include a 1.44 MB high density floppy disk drive as standard (late versions of the SE had one, but earlier versions did not). The power of the SE/30 was demonstrated by its use to produce the This Week newspaper, the first colour tabloid newspaper in the UK to use new, digital pre-press technology on a personal, desktop computer. In keeping with Apple's practice, from the Apple II+ until the Power Macintosh G3 was announced, a logic board upgrade was available for US$1,699 to convert a regular SE to an SE/30. The SE would then have exactly the same specs as an SE/30, with the difference only in the floppy drive if the SE had an 800 KB drive. The set included a new front bezel to replace the original SE bezel with that of an SE/30.

This machine was followed in 1991 by the Macintosh Classic II, which, despite the same processor and clock speed, was only 60% as fast as the SE/30 due to its 16-bit data path,^[1] supported no more than 10 MB of memory, lacked an internal expansion slot, and made the Motorola 68882 FPU an optional upgrade.

Hardware[edit]

Although it uses 32-bit instructions, the SE/30 ROM, like the IIx ROM, includes some code using 24-bit addressing, rendering the ROM '32-bit dirty'. This limited the actual amount of RAM that can be accessed to 8 MB under System 6.0.8.^[2] A system extension called MODE32 enables access to installed extra memory under System 6.0.8. Under System 7.0 up to System 7.5.5 the SE/30 can use up to 128 MB of RAM. Alternatively, replacing the ROM SIMM with one from a Mac IIsi or Mac IIfx makes the SE/30 '32-bit clean' and thereby enables use of up to 128 MB RAM and System 7.5 through OS 7.6.1.

A standard SE/30 can run up to System 7.5.5,^[3] since Mac OS 7.6 requires a '32-bit clean' ROM.^[4]

Additionally, the SE/30 can run A/UX, Apple's older version of a Unix that was able to run Macintosh programs.^[5]

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Though there was no official upgrade path for the SE/30, several third-party processor upgrades were available. A 68040 upgrade made it possible to run Mac OS 8.1, which extended the SE/30's productive life for many more years. The Micron Technology Xceed Gray-Scale 30 video card fit into the SE/30's Processor Direct Slot, enabling it to display greyscale video on its internal display, the only non-color compact Mac able to do so.^[6][7]

Models[edit]

• Macintosh SE/30:^[8] Available in multiple configurations.
  • US$4,369 (equivalent to $9,010 in 2019): 1MB RAM, No hard disk
  • US$4,869 (equivalent to $10,040 in 2019): 1MB RAM, 40MB hard disk
  • US$6,569 (equivalent to $13,550 in 2019): 4MB RAM, 80MB hard disk^[9]

Reception[edit]

Bruce F. Webster wrote in Macworld in March 1989 that the SE/30 did not 'break new ground. It does, however, establish Apple's commitment to the classic Mac product line, and it provides users with an Apple-supported alternative to either a small, slow Mac or a large, powerful one. More important, it fills a gap in the Macintosh family ... a new level of power and portability for the Macintosh community'.^[10]

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In a January 2009 Macworld feature commemorating the 25th anniversary of the Macintosh, three industry commentators – Adam C. Engst of TidBITS, John Gruber of Daring Fireball, and John Siracusa of Ars Technica – chose the SE/30 as their favorite Mac model of all time. 'Like any great Mac,' wrote Gruber, 'the SE/30 wasn't just a terrific system just when it debuted; it remained eminently usable for years to come. When I think of the original Mac era, the machine in my mind is the SE/30.'

The SE/30 remains popular with hobbyists, and has been described as “the best computer Apple will ever make,”^[11] with used models selling for a significant premium relative to other machines of the era. Contemporary PDS upgrades allowed an SE/30’s internal monitor to be upgraded to support 256 shades of gray^[12] (the only original-design Macintosh to support such an upgrade) or a 68040 processor, and the SE/30’s standard RAM limit of 128MB greatly exceeded even that of much later models such as the Color Classic and Macintosh LC II. In 2018, add-ons and software became available to add WiFi^[11] and even streaming Spotify support^[13] to the SE/30.

In popular culture[edit]

In the NBC TV series Seinfeld, Jerry has an SE/30 sitting on his desk during the first seasons. This would be the first of many Macs to occupy the desk, including a PowerBook Duo and a Twentieth Anniversary Macintosh.

In the FX series It's Always Sunny In Philadelphia, the Waitress is seen with a Macintosh SE/30 on her bedroom desk in the episode 'The Gang Gives Back'.

In the film Watchmen, Ozymandias has an all-black TEMPEST-shielded SE/30 on his desk.^[14]

Timeline of compact Macintosh models

References[edit]

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1. ^'Mac Classic II, a Compromised Mac'. Low End Mac. March 12, 2014.
2. ^Pogue, David; Schorr, Joseph (1999). MacWorld Mac Secrets, 5th Edition. IDG Books. pp. 461-462. ISBN0-7645-4040-8.
3. ^'25 Years of the Mac SE/30'. Low End Mac. January 19, 2014.
4. ^'Lowendmac'. Minimum requirements for Mac OS 7.6 included a 68030 CPU, '32-bit clean' ROMs, 8 MB of RAM (12-16 MB recommended), and 70 MB of hard drive space. It no longer supported 24-bit addressing or classic Mac networking (it used OpenTransport exclusively).
5. ^'A/UX FAQ'. A/UX 3.0 works on the Mac II (with PMMU or 68030 upgrade with FDHD ROM's installed), IIx, IIcx, IIci, IIfx, SE/30, IIsi (with 68882 chip) and the Quadra 700/900/950 computers.
6. ^'SE/30 GrayScale ScreenShots'. Archived from the original on June 12, 2002. Retrieved July 20, 2020.
7. ^'Micron Xceed for Mac SE/30'. Low End Mac. September 2, 1999.
8. ^'Macintosh SE/30: Technical Specifications'. Apple.
9. ^'InfoWorld March 27, 1989'.
10. ^Webster, Bruce F. (March 1989). 'The Mac SE Turns 030'. Macworld. pp. 112–117. Retrieved August 20, 2016.
11. ^ ^abBy (September 26, 2018). 'Apple's Best Computer Gets WiFi'. Hackaday. Retrieved August 10, 2019.
12. ^'Micron Xceed for Mac SE/30'. Low End Mac. September 2, 1999. Retrieved August 11, 2019.
13. ^Coward, Cameron (December 26, 2018). 'A Macintosh SE/30 Spotify Music Player'. Medium. Retrieved August 10, 2019.
14. ^Diaz, Jesus (March 6, 2009). 'Watchmen's Old School Macintosh SE/30'. Gizmodo. Archived from the original on July 2, 2012. Retrieved September 2, 2020.

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