Connects to | Macintosh Plus; Macintosh SE; Macintosh II via:
Apple IIe; Apple IIGS via:
|
---|---|
Design firm | Apple Inc. |
Manufacturer | Apple Inc. |
Introduced | September 1986[1][2] |
Discontinued | 1989 |
Cost | US$1,299 (equivalent to $3,030 in 2019)[3] |
Type | Hard Disk |
Memory | 20 MB |
Connection | Direct |
Ports | SCSI DB-25 x2 |
Power consumption | 30 W |
Weight | 9 lbs (4 kg) |
Dimensions | 3.1 x 9.7 x 10.5 (inches) 78.5 x 246 x 266 (mm) |
- Macintosh Hard Disk 20 Model M0135 For Mac And Cheese
- Macintosh Hard Disk 20 Model M0135 For Mac Free
- Macintosh Hard Disk 20 Model M0135 For Mac 2017
- Macintosh Hard Disk 20 Model M0135 For Mac Sale
- Macintosh Hard Disk 20 Model M0135 For Mac Os
Working Apple Macintosh Mac Computer Hard Disk 20 M0135 External Hard Drive. Apple Macintosh SE Model M5011 FDHD + mouse - Computer works, needs new. Macintosh 20MB Hard Disk 20 model M0135 for Mac 512K or 512KE. Got one to sell? Make Offer - Macintosh 20MB Hard Disk 20 model M0135 for Mac 512K or 512KE. The Macintosh Hard Disk 20 was the first hard drive developed by Apple Computer specifically for use with the Macintosh 512K.Introduced on September 17, 1985, it was part of Apple's long-awaited solution toward completing the Macintosh Office (a suite of integrated business hardware & software) announced in January 1985. It would be over a year more before Apple would release the file server.
Macintosh Hard Disk 20 Model M0135 For Mac And Cheese
The Apple Hard Disk 20SC is Apple's first SCSI based hard drive for the Apple II family as well as the Macintosh and other third party computers using an industry standard SCSI interface.
History[edit]
Released in September 1986 along with the Apple IIGS (which required an optional SCSI interface card to use it), it debuted over 9 months after the introduction of the Macintosh Plus, the first to include Apple's SCSI interface. It was a welcome addition, delivering considerably faster data transfer rates (up to 1.25 megabytes per second)[4] than its predecessors, the Hard Disk 20 (62.5 Kilobytes per second)[5] and ProFile.[6]
Hardware[edit]
The 20SC originally contained a half height 5.25' Seagate ST-225N 20MB SCSI hard drive, but was later manufactured with a full-height 3.5' MiniScribe 8425SA 20MB SCSI hard drive. The latter drive was the same size as the drive inside the Macintosh Hard Disk 20, but 10 to 15 MB over what had previously been offered by Apple for the II family. The same drive mechanism would also be offered 6 months later as a built-in drive option on the Macintosh II and SE. It had two standard Centronics 50-pin connectors, one for the System and one for daisy-chaining additional SCSI devices and a SCSI ID selection switch. An external terminator was required if it was the only SCSI device connected. The case itself could accommodate a 3.5' or 5.25' full-height hard drive mechanism. Indeed, the case design would be reused unchanged (in Platinum only) for 3 more models introduced the following year: 40SC, 80SC & 160SC (offering respective Megabytes of storage). While the transfer rates were significantly higher due to the faster SCSI bus technology, the actual transfer rate varied from computer to computer thanks to different SCSI implementation based on developing industry standards.[7]
![Macintosh Hard Disk 20 Model M0135 For Mac Macintosh Hard Disk 20 Model M0135 For Mac](https://i5.walmartimages.com/asr/cb0b307c-075a-43e4-8396-24064c7ff516_1.344cb9276a63a648efb2f5e39bdf3394.jpeg)
Design[edit]
In addition to being the first cross-platform drive offered by Apple it was the first hard drive to use the Snow White design language. Notably, it was the only Snow White product to use the Macintosh beige color and one of the few Apple products to be introduced in two different colors at the same time. Since the Apple IIGS was the first Apple product to debut in the new gray color they called Platinum, the 20SC had to both match it and the beige color of the Macintosh Plus, which it is designed to sit perfectly beneath. In 1987, all Apple products would change to Platinum, which would remain in use for the next 10 years.
See also[edit]
References[edit]
- ^Industry News, U-M Computing News, Volume 1, 1986, Page 14, ..Apple announced the Hard Disk 20SC. The 20 megabyte hard disk drive features a small computer system interface (SCSI) for connection to the Macintosh Plus or the APPle II with a SCSI adapter card. The University price for the HD20SC will be $927, with delivery expected in November. The price does not include the required SCSI cable and terminator..
- ^Ehman Offers 2 SCSI Hard Drives for the Mac Plus, By Lisa L. Spiegelman, InfoWorld, 3 Nov 1986, Page 15, ..Other recently introduced SCSI drives include the Apple Hard Disk 20SC. Price at $1,299, it has a 65-millisecond access speed, the company said..
- ^Spiegelman, Lisa. 'Ehman Offers 2 SCSI Hard Drives for Mac Plus.' InfoWorld. 3 Nov. 1986: p. 15. Print.
- ^'Apple Hard Disk 20SC: Specifications (Discontinued)'. Archived from the original on May 16, 2011. Retrieved January 29, 2008.
- ^'Hard Disk 20: Specification (Discontinued)'. Archived from the original on May 16, 2011. Retrieved May 16, 2011.
- ^'ProFile Hard Drive: Specifications (Discontinued)'. Archived from the original on June 6, 2012. Retrieved May 29, 2011.
- ^'Apple HD SC: Specifications (Discontinued)'. Archived from the original on May 16, 2011. Retrieved January 29, 2008.
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Hard_Disk_20SC&oldid=969022034'
Also known as | 'Green Jade'[1] |
---|---|
Manufacturer | Apple Computer, Inc. |
Product family | Compact Macintosh |
Type | All-in-one |
Release date | January 19, 1989; 31 years ago |
Introductory price | US$4,369 (equivalent to $9,011 in 2019) |
Discontinued | October 21, 1991 |
Operating system | System 6.0.3 – System 7.5.5 With a 32-bit clean ROM upgrade, Mac OS 7.6 - Mac OS 8.1 |
CPU | Motorola 68030 @ 16 MHz |
Memory | 1 MB RAM (120 ns 30-pin SIMM), expandable to 128 MB |
Display | 9 inches (23 cm) monochrome, 512 × 342 |
Dimensions | Height: 13.6 inches (35 cm) Width: 9.6 inches (24 cm) Depth: 10.9 inches (28 cm) |
Mass | 19.5 pounds (8.8 kg) |
Predecessor | Macintosh SE |
Successor | Macintosh Classic II |
Related articles | Macintosh IIx |
The Macintosh SE/30 is a personal computer designed, manufactured and sold by Apple Computer, Inc. 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. Although officially only able to support 32 MB, 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 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.
In the naming scheme used at that time, Apple indicated the presence of a 68030 processor by adding the letter 'x' to a model's name. When the Macintosh SE was upgraded with the 68030 processor, this posed an awkward problem; Apple was not willing to name their new computer the 'Macintosh SEx'. Thus, 'SE/30' was the name chosen.[citation needed] Internally, code names such as Green Jade, Fafnir, and Roadrunner were used.[2]
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,[3] supported no more than 10 MB of memory, lacked an internal expansion slot, and made the Motorola 68882 FPU an optional upgrade.
Hardware[edit]
Mainboard of the SE/30
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.[1] 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. Serial jepang semi. 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,[4] since Mac OS 7.6 requires a 32-bit-clean ROM.[5]
Additionally, the SE/30 can run A/UX, Apple's older version of a Unix that was able to run Macintosh programs.[6]
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.[7][8]
Models[edit]
- Macintosh SE/30:[9] Available in multiple configurations.
- US$4,369 (1MB RAM, No hard disk)
- US$4,869 (1MB RAM, 40MB Hard disk)
- US$6,569 (4MB RAM, 80MB Hard disk)[10]
Macintosh Hard Disk 20 Model M0135 For Mac Free
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'.[11]
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,”[12] 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[13] (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[12] and even streaming Spotify support[14] to the SE/30.
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.[15]
Timeline of compact Macintosh models
References[edit]
Macintosh Hard Disk 20 Model M0135 For Mac 2017
Wikimedia Commons has media related to Macintosh SE/30. |
Macintosh Hard Disk 20 Model M0135 For Mac Sale
- ^ abPogue, David; Schorr, Joseph (1999). MacWorld Mac Secrets, 5th Edition. IDG Books. pp. 461-462. ISBN0-7645-4040-8.
- ^Linzmayer, Owen W. (2004). Apple Confidential 2.0. No Starch Press. p. 48. ISBN1-59327-010-0.
- ^'Mac Classic II, a Compromised Mac'. Low End Mac. March 12, 2014.
- ^'25 Years of the Mac SE/30'. Low End Mac. January 19, 2014.
- ^'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).
- ^'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.
- ^'SE/30 GrayScale ScreenShots'. Archived from the original on June 12, 2002. Retrieved July 20, 2020.
- ^'Micron Xceed for Mac SE/30'. Low End Mac. September 2, 1999.
- ^'Macintosh SE/30: Technical Specifications'. Apple.
- ^'InfoWorld March 27, 1989'.
- ^Webster, Bruce F. (March 1989). 'The Mac SE Turns 030'. Macworld. pp. 112–117. Retrieved August 20, 2016.
- ^ abBy (September 26, 2018). 'Apple's Best Computer Gets WiFi'. Hackaday. Retrieved August 10, 2019.
- ^'Micron Xceed for Mac SE/30'. Low End Mac. September 2, 1999. Retrieved August 11, 2019.
- ^Coward, Cameron (December 26, 2018). 'A Macintosh SE/30 Spotify Music Player'. Medium. Retrieved August 10, 2019.
- ^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.
Macintosh Hard Disk 20 Model M0135 For Mac Os
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Macintosh_SE/30&oldid=976348803'