18.2GB, 7200, WU SCSI-3, SCA-2, LVD, 80 Pin, 1.0' No Lifetime AC036322C2 127967-001 3A12 (11/15/02) 128420-B21 143916-001 FE-14589-01. I've got a Compaq SCSI backplane (part #141282-002 / sp # 263035-001) as seen below Can anyone tell me what kind of power port that is and/or what - 725559.
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Color version of the Compaq Portable 486, the Compaq Portable 486c | |
| Manufacturer | Compaq Computer Corporation, United States |
|---|---|
| Product family | Compaq Portable series |
| Type | Portable computer |
| Release date | 1992; 29 years ago |
| CPU | Intel 80486DX @ 33 MHz |
| Memory | 4 - 32 MB RAM |
| Display | Active TFT monochrome[1] |
| Graphics | 640 X 480 resolution 8-bit[2]VGA[1], 80 X 25 text[2] |
| Sound | PIT using a mini speaker |
| Connectivity | SCSI[3]2x EISA expansion bus[3] |
| Dimensions | 39.6 (width) x 13.9 (depth) x 27.9 (height) cm[4] |
| Mass | 7.9 kg[4] |
| Predecessor | Compaq Portable 386 |
The Compaq Portable 486 is a computer released by Compaq Computer Corporation in 1992.[2] It was the last 'luggable' or portable computer released under the Compaq Portable series of computers.[5]
The computer was released in several models with different hard disk configurations and in two screen types, a cheaper monochrome version and a more expensive active matrix color version, known as the Compaq Portable 486c.[5][6] The street price upon its release for with a 120 MB hard disk was US$5,899 for the monochrome version and US$9,999 for the active matrix color version[5][6] For a model with 210 MB hard disk the price was US$6,899, for the monochrome version and US$10,999 for the active matrix color version, but was not available until after May 1992.[5][6]
Both versions are equipped with a socketed 33 MHz[5][6]Intel 80486DXCPU, 4 MBDRAM (72-pin SIMM),[1]1.44 MB 3.5'floppy, 120[4] - 1000 MB hard disk drive[1] (P-ATA),[3] and SCSI port for CD-ROM or tape.[3] On the front of the unit there two dials underneath the PC-speaker to adjust the brightness of the screen and the volume of the PC-speaker. The PC-speaker in the Compaq Portable 486 is unique in that there is a 3.5 mm audio input jack on the side of the unit to allow a third party ISAsound card to pass through its audio output to the PC speaker.[5]
Compaq also released 2 versions of the Compaq Portable 486 with a faster, 66 MHz Intel 80486DX2CPU, named the Compaq Portable 486/66 for the monochrome version and the Compaq Portable 486/66c for the color version[5]
Compaq also worked with Network General which released branded versions of the Compaq Portable 486 as 'Network Sniffers'[7]
Environmental limits are:
- Temperature operating 10 - 40 °C, nonoperating -30 - 60 °C
- Relative humidity (noncondensing) Operating 20% - 80%, Nonoperating 5% - 90%
- Maximum unpressurized altitude operating 3050 meters, nonoperating 9150 meters
- Shock 40 G, 11 ms, half sine (nonoperating Vibration, Operating 0.25 G, 5 – 500 Hz, 1/2 octave/min sweep Nonoperating 1.0 G, 5 – 500 Hz, 1/2 octave/min sweep
References[edit]
- ^ abcdloreoutlet.dyndns.org - Computer COLLsite: PortablesArchived 2012-04-06 at the Wayback Machine
- ^ abc1000bit.it - ---+ 1000 BiT +--- Computer's description
- ^ abcdmcamafia.de - My Portable Computers
- ^ abchelpowl.com - Compaq Portable 486 compaq portable 486
- ^ abcdefgadmin (2019-11-13). 'The Compaq Portable 486'. Retropaq. Retrieved 2019-11-14.
- ^ abcdbooks.google.com - InfoWorld 1992-05-04
- ^https://www.retropaq.com/the-compaq-portable-486/
| Developer | Compaq |
|---|---|
| Type | Server |
| Release date | 1989 (as SystemPro) 1992 (as SystemPro XL) |
| Discontinued | 1993 |
| Successor | Compaq ProSignia (as mid-range) Compaq ProLiant (as hi-end) |
| Related articles | Compaq Deskpro |
The SystemPro from Compaq, released in November 1989, was arguably the first true PC based server. It supported Intel's 486 chip, a 32-bit bus, RAID disk and dual-processor support well before its main rivals.
Innovative features[edit]
The SystemPro, along with the simultaneously released Compaq Deskpro 486, was one of the first two commercially available computer systems containing the new EISA bus. The SystemPro was also one of the first PC-style systems specifically designed as a network server, and as such was built from the ground up to take full advantage of the EISA bus. It included such features as multiprocessing (the original systems were asymmetric-only), hardware RAID, and bus-mastering network cards. All models of SystemPro used a full-height tower configuration, with eight internal hard drivebays.
Multiprocessing[edit]
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At its initial release in November 1989, the SystemPro supported up to two 33 MHz 386 processors, but early in 1990 33 MHz 486 processors became an option (the processors were housed on proprietary daughterboards). Because the system was asymmetric, 386 and 486 processors could be mixed. Single processor configurations were also available.
The only operating system which fully supported the SystemPro's asymmetric multiprocessing was a custom version of SCO Unix, sold by Compaq. However, when running OS/2, certain applications (notably SybaseSQL Server) could be offloaded to the second processor, and later, Novell NetWare SFT-III was able to offload its I/O engine. It is worth noting that the original versions of Windows NT (3.1) included a hardware abstraction layer specifically for the SystemPro; despite NT's symmetric multiprocessing design, this HAL could offload some kernel tasks to the second CPU. This made Windows NT 3.1 the only version of Windows to support multiprocessor 386-based machines.
System/Memory Architecture[edit]
The system used a state-of-the-art shared memory bus design, called Tri-Flex Architecture, to facilitate its multiprocessing capabilities.[citation needed] The original SystemPro shipped with 4MB 80ns DRAM, expandable up to 256MB using proprietary memory modules.
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RAID[edit]
The SystemPro also offered one of the first implementations of RAID (including RAID 5) available on a PC-based system. The original RAID card, called the IDA (Intelligent Drive Array) used a proprietary form of IDE, supporting up to 4 drives internally. At its release, the largest drive available was 210 MB. Two IDA cards could be installed, allowing all 8 hard drive bays to be filled (each IDA controller array would appear as a separate logical drive to the operating system, however), providing a grand total of 1.2 GB using RAID 5, or 1.6 GB using non-redundant striping (RAID 0). Another option called the IDA Expansion Array provided support for up to 7 drives in a single array (housed in an external tower chassis looking virtually identical to the SystemPro itself), using an early (and very proprietary) form of differential SCSI. Note that all hard drives in the SystemPro or the Expansion Array were internally mounted drives; hot swapping was not an option. System for RAID performance and health monitoring patented in 1993.[1]
Market[edit]
The SystemPro was marketed for those who had scaled up to the top end of LAN hardware, or those who were scaling down from minicomputers — and its pricing was set accordingly. At the time of launch, the 'low-end' SystemPro (a single 33-MHz 386 CPU, 4 MB RAM, and two 120-MB hard drives) listed for $15,999 (USD); the same machine with 840 MB of storage (four 210-MB hard drives) listed for $25,999 (USD). A second 386 processor card cost $3,500 (USD), and an additional 32 MB of RAM was $21,999 (USD).
Legacy[edit]
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The SystemPro line continued for several years, ending with the SystemPro XL, which was introduced in 1992.[2] The XL was the only model that supported symmetric multiprocessing. It was replaced, also in 1992, by Compaq's ProSignia[3][4] line, and later the ProLiant series, which introduced hot swappable drives and the rack mount chassis now popular in data centers. However, the SystemPro is notable for having established the PC-based server market, and setting a high-water mark for the servers that followed.
References[edit]
- ^'Drive array performance monitor - United States Patent 5,450,609'. web.archive.org. 1995-09-12. Archived from the original on 2007-10-21. Retrieved 2020-12-17.
- ^Inc, InfoWorld Media Group (1992-10-05). InfoWorld. InfoWorld Media Group, Inc.
- ^Inc, InfoWorld Media Group (1992-10-19). InfoWorld. InfoWorld Media Group, Inc.
- ^Inc, Spiceworks. 'Compaq Prosignia 300 Server'. The Spiceworks Community. Retrieved 2020-01-07.
- Edward Foster; Patrick Dryden (13 November 1989). 'Compaq Server Invades Mini Turf'. InfoWorld. Vol. 11 no. 46. pp. 1, 5–6.
- Michael J. Miller (18 December 1989). 'Systempro Really Shines As Network File Server'. InfoWorld. Vol. 11 no. 51. pp. 1, 8.
- David Greenfield (30 June 1993). 'Super Servers: Power, Reliability, Security—At What Price?'. PC Magazine.
- Step Back in Time to 1988: Gary Thome on YouTube
- Step Back in Time to 1988: McGraw on YouTube
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