Cumulus Corporation

Last updated

Cumulus Corporation
Cumulus Computer Corporation (1990–1993)
TypePrivate
IndustryComputer
FoundedJune 1987;36 years ago (1987-06) in Beachwood, Ohio
FounderMartin Alpert
DefunctApril 1993;30 years ago (1993-04)
FateBankruptcy liquidation
Products
Number of employees
350–450 (1992, peak)

Cumulus Corporation (often shortened to Cumulus Corp.) was an American computer peripheral and system manufacturer active from 1987 to 1993. Based in Beachwood, Ohio (a suburb of Cleveland) and started by Tecmar founder Martin Alpert, the company set out to exclusively manufacture expansion products for IBM's Personal System/2 (PS/2) family of computers—mainly RAM expansion cards. It later released cross-platform CPU upgrade cards and memory expansion cards for other platforms besides the PS/2. Beginning in 1990, the company began trading as Cumulus Computer Corporation and began releasing complete systems of their own. Initially a success story for the tech industry in Cleveland, [1] a botched stock launch in 1992 proved disastrous for the company's ailing cash flow situation, and in 1993 the company was liquidated amid massive debt to suppliers and lenders.

Contents

Foundation (1987–1988)

Cumulus Corporation was founded in Beachwood, Ohio, [2] a suburb of Cleveland, in 1987 by Martin Alpert. [3] Alpert, an M.D. and pulmonologist, was previously the head of Tecmar, a personal computer expansion card manufacturer that he founded in 1974 to manufacture and market his designs for medical diagnostic equipment. Shortly after IBM announced their Personal Computer in August 1981, Tecmar became one of the first third-party manufacturers to release expansion cards for the system. [4] :37 Alpert operated Tecmar as a private business until summer 1986, when he sold it to Rexon, Inc., of Culver City, California, for less than US$2.3 million. Alpert stayed on the board of directors, [3] before leaving in October 1986. [5] He admitted that Tecmar in the years leading up to its purchase lacked adequate "executive-level talent" in its management. [3] Alpert set out Cumulus to first and foremost to design and manufacture peripherals for the Personal System/2 (PS/2), a family of computers introduced by IBM in April 1987, intended as the successor to their earlier IBM PC line. [4] :37 He funded the startup of Cumulus with his own money, [6] purchasing an office in San Diego, California, to house Cumulus' full-time engineering staff. [3]

Cumulus released its first products in August 1987: a multifunction board for the PS/2 Models 50 and 60 called CuRAM and an external 5.25-inch floppy disk drive called Stepping Stone. The Stepping Stone was released to address the PS/2's lack of a 5.25-inch floppy drive (IBM had adopted the newer 3.5-inch standard, developed by Sony Corporation, for the PS/2). Cumulus paired the drive with software and a controller card—the latter containing a specially burned PROM with microcode allowing the Stepping Stone to act as the primary (A:) drive. This opened the PS/2 to a larger back-catalog of IBM PC software; the installers of some contemporary applications on 5.25-inch disks, like Lotus 1-2-3, required being run from the A: floppy drive, as a form of copy protection. [7]

The CuRAM multifunction board was in its bare state a RAM expansion card, available in two variants, 2 MB and 4 MB. [2] Three separate daughterboards plugged into the CuRAM through a pin-header-and-socket arrangement. [8] :146 The first added two additional peripheral ports (one serial and one parallel); the second added a 2.4-kbps modem; and the third offered more memory, up to 8 MB. [2] Through included software and driver files, [2] users may designate the CuRAM's memory as either of three types of memory: extended, Expanded (LIM EMS 4.0 [lower-alpha 1] ), and Enhanced Expanded (EEMS). Certain operating systems like Xenix could take advantage of extended memory, and it also allowed users to allocate RAM drives with more than the available memory within the 640 KB conventional memory of real mode PC DOS. [2] In DOS environments, LIM EMS is useful for storing large blocks of data, while EEMS could be used to run multiple DOS programs concurrently. Critically, more than one CuRAM board could be installed and ran in a PS/2 at the same time, increasing the maximum memory to 16 MB. For the Model 50, this meant that that system could possess more RAM than IBM's prescribed upper limit of 7 MB, while leaving one of its three expansion slots open. [7] Cumulus accomplished this by getting permission by IBM to use one of their reserved vendor ID for the CuRAM. [9]

Intended for the 286-equipped Models 50 and 60, the CuRAM plugged into those computer's 16-bit Micro Channel expansion slots. [8] :143 Computer Reseller News wrote that Cumulus was the first American expansion board maker to harness the 1 µm process of semiconductor fabrication with the CuRAM in August 1987. [9] In late March 1988, [10] Cumulus released the CuRAM 80-8, [11] a memory expansion card for the PS/2 Model 80 and the second 32-bit memory card ever released for the PS/2 (following after a similar product by AST Research). The CuRAM 80 supports up to 8 MB of RAM per card, upgraded in 2 MB intervals from the stock integrated 2 MB. Like its predecessor, the CuRAM 80 has sockets for the peripheral-port-addition and modem daughtercards. The CuRAM 80 was unveiled concurrently with an upgraded version of the original 16-bit CuRAM board—the CuRAM-2 [12] —which increased the maximum amount of RAM per card to 12 MB (up from 8 MB). [13] The CuRAM-2 was offered in two different base configurations, with either 2 MB and 6 MB of soldered-on stock RAM. [12]

Sales of the CuRAM family were less than expected, despite high interest. Alpert attributed this to widespread confusion over product specifications and compatibility among memory expansion cards in the PS/2 marketplace. [14] By the end of 1987, Cumulus achieved a modest annual sales figure of $589,000. [15]

Diversification (1988–1990)

Amid a DRAM chip shortage in the beginning of 1988 and more difficulty in accounting for the production of multi-layer surface-mount PCBs than they expected, [16] [17] Cumulus turned to market other products in 1988. The company took the modem component of the CuRAM and built it into a standalone modem for the PS/2. Called the CuModem 2400, it was introduced sometime in early 1988. [5] Bucking from their all-PS/2 approach, in July 1988, [18] Cumulus announced the PaqRAM-1 and PaqRAM-4—respectively 1 and 4 MB memory expansion boards for Compaq's Deskpro 386. Cumulus announced the PaqRAMs amid a shortage of Compaq's own RAM modules in that company's inventory; the Deskpro 386 used a proprietary slot for expansion RAM. [19] In November 1988, Cumulus announced the Classic, a line of portable hard drives. The only drive available at launch was 44 MB in capacity and in the 5.25-inch form factor. [20] The company began work on a CPU upgrade card in late 1988. [21] Named the 80386SX Card and released in winter 1989, the card plugs into a vacant Intel 80286 slot of a motherboard, giving it a faster i386SX chip clocked at 16 MHz while only covering a section of the motherboard less than 3 square inches (19 cm2). [22] A floating-point unit expansion daughterboard for the 80386SX Card, employing an 80387SX, was released in summer 1989. [23]

In December 1988, Cumulus formed a joint venture with Network Systems Corporation to develop a proprietary interface based on the Fiber Distributed Data Interface (FDDI) protocol for Network System's Hyperchannel-DX family of network processor chips. [24] [25] The venture apparently fizzled in 1989 with Cumulus going in the field of FDDI-based networking equipment alone. [26] [27] In July 1989, they released the VMEbus-based MegaNet M100-9U network controller adapter in July 1989, which sold for $10,000. The adapter incorporated a 32-bit RISC from Advanced Micro Devices. [28]

While a memory expansion board for the Macintosh II announced by Cumulus in November 1987—in an early deviation of their all-PS/2 business approach [29] —proved to be vaporware, the company did release a 44-MB portable SCSI hard drive for the Macintosh, named the RD-44, in late 1989. [30]

Computer systems (1990–1992)

Although Alpert in a 1987 interview expressed wanting to avoid competing with the computer manufacturers that Cumulus supported with systems of their own, [4] Cumulus Corporation renamed itself to Cumulus Computer Corporation in 1990 and introduced a number of desktop computer families that year. [31] The first was the GLC/CO (an abbreviation for Good Little Computer/Corporate), a desktop based on the 16 MHz i386SX processor. Its defining feature was its passive backplane, with the CPU and memory residing on a proprietary CPU card plugged into one of the four ISA expansion slots, in an attempt to facilitate upgrades to newer processors in the future. [32] Cumulus won Sears as a reseller of the GLC line, the latter company marketing the computer inside their Office Center store-within-a-store. [33] The GLC/SBS (Good Little Computer/Small Business System), introduced in November 1990 and featuring a built-in combination fax modemanswering machine unit, [34] intended to compete with IBM's PS/1 of personal computers for the home. [35] Like the GLC/CO, the computer featured a 16 MHz i386SX on a CPU card. [36] Computer journalists received it positively. [36] [37] Cumulus followed it up with their first i386DX-based machine, the GLC/DX (later renamed the GLC/33 [38] ), in April 1991, [39] and their first i486DX-based machine, the Cumulus/486, in May 1991—the latter available in tower, desktop, and pizza box form factors. [40]

In August 1991, Cumulus introduced their WorkBox line of computers, the first entry being the WorkBox SX/40, a desktop computer running an i486SX clocked at 40 MHz. [41] The WorkBox had six expansion slots, over the GLC's four, [42] while fitting in a minitower case. Its motherboard featured the SCAT chipset by Chips and Technologies, and the computer shipped with a Paradise (Western Digital) SVGA graphics card. It received a mixed review in Computer Shopper , who particularly panned Cumulus' shorter-than-average 10-day return policy. [43]

In July 1992, Cumulus introduced the GLC/MC line, a desktop computer with a Micro Channel bus directly competing with IBM's PS/2. [44] Previewed at Boston Networld in winter 1992, [45] the GLC/MC came in two variants, a 25 MHz i386SX–based unit with 2 MB of RAM stock and an 80 MB hard drive; and a 33 MHz i486–based unit with 4 MB of RAM stock and a 200 MB hard drive. [44] The GLC/MC followed Cumulus's announcement of the final incarnation of CuRAM—the CuRAM-32—which supported up to 32 MB of RAM. [46] :259 In 1992, Cumulus commissioned Jetta International to build the motherboard for their first laptop, the Express 386SX/20, which was released in the summer of 1992. [47] :248 That same summer, Cumulus announced their intent to work on the design for a cellular phone, in a corporate refocus toward mobile computing. [48]

Liquidation (1992–1993)

By the end of 1991, Cumulus reached between $116 million and $121 million in sales and employed between 350 and 450. [15] [48] [1] In May 1992, the company filed to go public with the SEC, mediated through Merrill Lynch & Company and Dillon, Read & Company, and issuing 2.5 million common shares [49] —later increased to 2.8 million shares, at a maximum price of $11 per share, ($31.6 million). [15] In anticipation of their stock launch, Bill Lowe—the former president of IBM's Entry Systems Division—joined Cumulus' board of directors and was named vice chairman. [50]

Despite keeping appearances of a thriving company, Cumulus was crumbling internally under poor cash flow and externally from the fierce price war in the desktop computer market in the early 1990s, in which bigger players in the market lowered the prices of their systems far below what smaller firms like Cumulus could afford to compete against. [15] This, combined with computer companies under-performing in the stock market in 1992, compelled Cumulus to rescind their initial public offering. [1] This had the effect of exacerbating their cash flow dilemma, [15] and with the planned retirement of their growing debt to lenders and suppliers foiled by the lack of liquidity that their IPO would have offered, Cumulus quickly became insolvent. [1] Over the summer of 1992, the company canceled plans to move into a larger 165,000-square-foot office in Solon, Ohio, and in September 1992, Cumulus furloughed 170 workers in production and management [15] —laying them off entirely the following week. [51]

Four of Cumulus' creditors had filed suit against the company by late September 1992. Arrow Electronics, an electronic component distributor then headquartered in Melville, New York, claimed over $635,000 in unpaid invoices for parts and $1 million in punitive damages. J.B. Enterprises, a clothing supplier in Cleveland, sought a little over $16,000 in unpaid T-shirts. [51] Conner Peripherals claimed $2 million in unpaid bills and punitive damages for liability and breach of contract; Cumulus denied those punitive damages in a prospectus. [52] Interconnect Technical Services, an executive recruiting firm out of Toledo, sought $18,750 in payment for arranging an employee to work for Cumulus. [51] In October 1992, Transcend Information sued Cumulus, seeking over $87,000 in payments. [53] :81 In November 1992, three more of Cumulus' creditors filed suit over non-payments: PerCom Technology of Fremont, California, for over $323,000; Toshiba America Information Systems for over $216,000; and Toshiba America Electronic Components for over $37,000. [54] Although Cumulus hired a local consulting firm specializing in struggling businesses back in September, [51] by November it became known through ex-employees that Star Banc of Cincinnati—a secured lender whom Cumulus owed $9 million—was in talks with the Cumulus to liquidate the company. [54]

I consider [Martin Alpert] to be an authentic business genius with the capacity to build two highly successful, high-technology companies. He just lacked a sense of timing.

Michael Blumberg, speaking of Cumulus' financial troubles in 1992 [55]

In October 1992, Cumulus sold their memory products division to Repco Electronics of Solon for an undisclosed amount. The resulting joint venture was named Cumulus Memory Products; Repco president Michael Blumberg accorded presidency of Cumulus Memory to Leonard Applebaum, previously the chairman of CAM/RPC, an electronic components distributor based in Highland Heights. Blumberg and Applebaum planned to rehire 25 to 50 of Cumulus' laid-off employees. [56] Cumulus Memory, which had won its former parent company $45 million in sales in 1991, had its headquarters located within CAM/RPC's Highland Heights office, and by November, it had recovered 27 of Cumulus' ex–employee base. [55]

Cumulus, erstwhile under ownership of Star Banc as "crisis managers", [57] moved its headquarters to a much smaller office in Beachwood, across the street from their former 37,500-square-foot building, in October 1992. After the move was completed, the company laid off half of its remaining workforce and was now down to 50 employees. [53] In December 1992, Cumulus' remaining employees were laid off. [58] In January 1993, three more creditors filed suit against Cumulus for unpaid shipments of products: Western Digital for $1.1 million, Hyundai Electronics for $1 million, and Oki for more than $883,000. Following these suits, Cumulus plead to the Cuyahoga County Common Pleas Court to appoint a receiver to liquidate the company. [59] The courts approved liquidation between January and March 1993, and Cumulus filled for Chapter 11 bankruptcy in turn. In early March, eighty of Cumulus' former employees filed a class action suit against Star Banc, claiming $236,000 in garnished wages and backpay for unused vacation time during Star Banc's management of Cumulus. [57] Cumulus finally dissolved on April 1, 1993, with an auction supervised by Cleveland-based Rosen & Company of the company's 280 personal computers and thousands of peripherals. [60]

Notes

  1. LIM standing for Lotus Development, Intel, and Microsoft, the three companies responsible for the LIM EMS standard

Related Research Articles

<span class="mw-page-title-main">Tandy 1000</span> IBM PC compatible home computer system

The Tandy 1000 is the first in a line of IBM PC compatible home computer systems produced by the Tandy Corporation for sale in its Radio Shack and Radio Shack Computer Center chains of stores.

<span class="mw-page-title-main">IBM PS/2</span> Second generation of personal computers by IBM

The Personal System/2 or PS/2 is IBM's second generation of personal computers. Released in 1987, it officially replaced the IBM PC, XT, AT, and PC Convertible in IBM's lineup. Many of the PS/2's innovations, such as the 16550 UART, 1440 KB 3.5-inch floppy disk format, 72-pin SIMMs, the PS/2 port, and the VGA video standard, went on to become standards in the broader PC market.

<span class="mw-page-title-main">Chips and Technologies</span> Company

Chips and Technologies, Inc. (C&T), was an early fabless semiconductor company founded in Milpitas, California, in December 1984 by Gordon A. Campbell and Dado Banatao.

<span class="mw-page-title-main">AST Research</span> American computer manufacturer (1980–1999)

AST Research, Inc., later doing business as AST Computer, was a personal computer manufacturer. It was founded in 1980 in Irvine, California, by Albert Wong, Safi Qureshey, and Thomas Yuen, as an initialism of their first names. In the 1980s, AST designed add-on expansion cards, and evolved toward the 1990s into a major personal computer manufacturer. AST was acquired by Samsung Electronics in 1997 but was de facto closed in 1999 due to a series of losses.

<span class="mw-page-title-main">Tecmar</span>

Tecmar Inc. was an American manufacturer of personal computer enhancement products based in Solon, Ohio. The company was founded in 1974 by Martin Alpert, M.D., and Carolyn Alpert. The company's first products were computerized medical equipment; the company shortly after pivoted to data acquisition boards for the first generation of microcomputers. Popular products included the Scientific Solutions LabMaster series of boards for S-100 and Apple Computer.

<span class="mw-page-title-main">Compaq Deskpro 386</span> PC compatible computers made by Compaq

The Deskpro 386 is a line of desktop computers in Compaq's Deskpro range of IBM PC compatibles. The computers feature Intel's 32-bit 80386 microprocessor. Introduced in September 1986, the Deskpro 386 is the first implementation of the 80386 processor in a computer system for sale to the public. It also marks the first time that a major component of the IBM Personal Computer de facto standard was updated by a company other than IBM themselves—in this case, upgrading from the 80286 processor of the Personal Computer/AT.

The IBM PS/2 Note and PS/note are a series of notebooks from the PS/2 line by IBM. It was announced in March 1992, half a year prior to the release of the first ThinkPad, the IBM ThinkPad 700. The series was discontinued in 1994.

<span class="mw-page-title-main">Reply Corporation</span> American computer company

Reply Corporation, often shortened to Reply Corp., was an American computer company based in San Jose, California. Founded in 1988 by Steve Petracca, the company licensed the Micro Channel architecture from IBM for their own computers released in 1989, competing against IBM's PS/2 line. The company later divested from offering complete systems in favor of marketing motherboard upgrades for older PS/2s. Reply enjoyed a close relationship with IBM, owing to many of its founding employees, including Petracca, having worked for IBM. The company was acquired by Radius in 1997.

<span class="mw-page-title-main">American Computer and Peripheral</span> American computer company

American Computer & Peripheral, Inc. (AC&P), also written as American Computer and Peripheral, was an American computer company based in Santa Ana, California. The company was founded in 1985 by Alan Lue and released several expansion boards for the IBM PC as well as a few PC clones before going bankrupt in December 1989. Obscure in its own time, the company's 386 Translator was the first plug-in board for Intel's newly released 80386 processor and the first mass-market computing device to offer consumers a means of using the 386 in July 1986.

<span class="mw-page-title-main">Advanced Logic Research</span> American computer company

Advanced Logic Research, Inc. (ALR), was an American computer company founded in 1984 in Irvine, California by Gene Lu. The company marketed IBM PC compatibles across that standard's evolution until 1997 when it was acquired by Gateway 2000. ALR had a reputation for beating its larger competitors to market with compatibles featuring cutting-edge technologies. However, it struggled with brand recognition in the fiercely competitive market of low-end PCs in the mid-1990s. According to computer journalist and collector Michael Nadeau, "ALR's business strategy was to be the first to market with the latest and fastest possible PC-compatible designs", a strategy that "often succeeded".

<span class="mw-page-title-main">Librex Computer Systems</span>

Librex Computer Systems Inc. was a short-lived American subsidiary of the Nippon Steel Corporation that manufactured notebook computers from 1990 to 1992. Librex had roots in Nippon Steel's Electronics and Information Systems Division (EISD) back in Japan, which starting in 1986 had formed joint ventures with several high-profile American computer companies. Librex was Nippon Steel EISD's first venture in the United States; it also set up Nippon Steel Computer PLC in the United Kingdom to sell identical products. The company's notebooks received praise in the technology press, but a fierce price war in the market for laptops in the early 1990s combined with dwindling profit margins compelled Nippon Steel to dissolve Librex in 1993.

<span class="mw-page-title-main">IBM PS/2 Model 30</span> 1987 IBM desktop computer

The Personal System/2 Model 30 and Personal System/2 Model 30 286 are IBM's entry-level desktop computers in their Personal System/2 (PS/2) family of personal computers. As opposed to higher-end entries in the PS/2 line which use Micro Channel bus architecture, the Model 30 features an Industry Standard Architecture bus, allowing it to use expansion cards from its direct predecessors, the PC/XT and the PC/AT. The original PS/2 Model 30 is built upon the Intel 8086 microprocessor clocked at 8 MHz; the Model 30 286 features the Intel 80286 clocked at 10 MHz.

<span class="mw-page-title-main">IBM PS/2 Model 25</span> Personal computers

The Personal System/2 Model 25 and its later submodels the 25 286 and 25 SX are IBM's lowest-end entries in the Personal System/2 (PS/2) family of personal computers. Like its sibling the Model 30, the Model 25 features an Industry Standard Architecture bus, allowing it to use expansion cards from its direct predecessors, the PC/XT and the PC/AT—but not from higher entries in the PS/2 line, which use Micro Channel. Unlike all other entries in the PS/2 line, the Model 25 and its submodels are built into an all-in-one form factor, with its cathode-ray tube (CRT) monitor and system board occupying the same enclosure. IBM oriented the Model 25 at home office workers and students.

IBM EduQuest, later shortened to EduQuest, was a subsidiary of American multinational technology corporation IBM that catered to the elementary and secondary educational market. A spin-off of the company's Educational Systems division spearheaded by James Elton Dezell Jr. (1933–2000), EduQuest developed software and hardware for schools. Most prominent was their line of all-in-one personal computers, whose form factor was based on IBM's PS/2 Model 25.

<span class="mw-page-title-main">Zenith SupersPort</span> Line of PC-compatible laptops

The SupersPort is a line of PC-compatible laptops manufactured by Zenith Data Systems and sold from 1988 to 1993. The first two main entries in the SupersPort line included either an Intel 80286 microprocessor clocked at 12 MHz or an 8088 processor clocked at 8 or 4.77 MHz, switchable. Later entries included the 386SX, 486SX and 486 processors. The SupersPort 286 in particular was one of the top-selling laptops of the late 1980s, although Zenith's position in this segment faltered by the early 1990s.

<span class="mw-page-title-main">Aox Inc.</span> American technology corporation

Aox Inc. was a privately run American technology corporation founded by Michael and Linda Aronson in 1978. Over the course of its 22-year lifespan, the company chiefly developed software and hardware for IBM's PC and compatibles, for the Personal System/2, and for the Macintosh. In its twilight years, the company designed multimedia and teleconferencing devices and chip designs. Aox was founded after Michael Aronson graduated from Harvard University with a doctorate in physics; he stayed with the company until 2000, when he incorporated EndPoints Inc. and switched to full-time fabless semiconductor design.

Intelligent Systems Corporation (ISC) was an American technology company that sold portable computers, video terminals, expansion cards, and other peripherals through a variety of manufacturing subsidiaries. Founded in 1973, the company restructured as a master limited partnership in 1987, becoming Intelligent Systems Master Limited Partnership.

<span class="mw-page-title-main">Advanced Digital Corporation</span>

Advanced Digital Corporation (ADC) was a privately owned American computer company based in California, active from the 1980s to the 1990s. The company was founded by 1980 by a group of engineers, in order to market their single-user and multi-user expansion cards and peripherals for S-100–based computers.

References

  1. 1 2 3 4 Greene, Jay (January 1, 1993). "Receiver to Guide Cumulus: Computer Maker Fell on Tough Times". The Plain Dealer: 3E via ProQuest.
  2. 1 2 3 4 5 Brennan, Laura (August 18, 1987). "Tecmar Founder's New Company Is Targeted on PS/2 Marketplace". PC Week. Ziff-Davis. 4 (33): 18 via the Internet Archive.
  3. 1 2 3 4 McAdams, Melinda (November 23, 1987). "Add-on Man Alpert Tackles PS/2 Market". MIS Week. Fairchild Publications. 8 (47): 36 via the Internet Archive.
  4. 1 2 3 Martin, James A. (November 2, 1987). "Tecmar founder sees daylight, breaks open field in PS/2 aftermarket". Computerworld. IDG Publications. XXI (44): 37, 40 via Google Books.
  5. 1 2 Siegmann, Ken (March 29, 1988). "Startup devoted to enhancement products for PS/2". PC Week. Ziff-Davis. 5 (13): 113 via Gale.
  6. Zivkovich, Oleg (September 14, 1987). "Tecmar founder starts Cumulus". Computer Systems News. UBM LLC (331): 21 via Gale.
  7. 1 2 Scannell, Ed (August 10, 1987). "PS/2 board, floppy drive hit market". Computerworld. IDG Publications. 21 (32): 13 via Google Books.
  8. 1 2 Rosch, Winn L. (March 15, 1988). "Beyond Native Memory: Add-in Boards for PS/2 Model 50 and 60". PC Magazine. Ziff-Davis. 7 (5): 143–156 via Google Books.
  9. 1 2 Breidenbach, Susan (February 29, 1988). "Micro Channel myths exploded by Cumulus exec; multimaster bus creates new opportunities for peripherals manufacturers". Computer Reseller News. UBM LLC (248): 139 via Gale.
  10. Staff writer (March 21, 1988). "Cumulus releases 32-bit multifunction board for Model 80". Computer Reseller News. UBM LLC (251): 114 via Gale.
  11. Rosch, Winn L. (July 1988). "CuRAM 80-8: 32-Bit Memory for PS/2 Model 80 with Modem and Port Options". PC Magazine. Ziff-Davis. 7 (13): 43 via Google Books.
  12. 1 2 Heid, Jim (June 1988). "CuRAM-2; PS/2 multifunction board". PC World. IDG Publications. 6 (6): 166 via Gale.
  13. Spiegelman, Lisa L. (March 1, 1988). "Cumulus 32-bit memory card boosts Model 80's memory by up to 8M bytes". PC Week. Ziff-Davis. 5 (9): 20 via Gale.
  14. Siegmann, Ken (February 2, 1988). "PS/2 enhancement products fail to warm dealers' hopes". PC Week. Ziff-Davis. 5 (5): 116 via Gale.
  15. 1 2 3 4 5 6 Prizinsky, David; Chris Thompson (September 21, 1992). "PC Market Crunches Cumulus: Money Problems Put Growth Plans on Hold". Crain's Cleveland Business. Crain Communications. 13 (38): 1 via ProQuest.
  16. Siegmann, Ken (March 29, 1988). "Chip shortage puts squeeze on board makers". PC Week. Ziff-Davis. 5 (13): 108 via Gale.
  17. Siegmann, Ken (March 29, 1988). "Micro Channel bus proves troublesome for board makers". PC Week. Ziff-Davis. 5 (13): 107 via Gale.
  18. Spiegelman, Lisa L. (July 25, 1988). "Solutions emerge for Deskpro 386 memory shortage". PC Week. Ziff-Davis. 5 (30): 4 via Gale.
  19. Rosch, Winn L. (November 14, 1988). "Rosch on products". PC Week. Ziff-Davis. 5 (46): 122 via Gale.
  20. Spiegelman, Lisa L. (November 14, 1988). "Parade of faster, smaller drives fuels market". PC Week. Ziff-Davis. 5 (46): 74 via Gale.
  21. Staff writer (December 5, 1988). "News Briefs". PC Week. Ziff-Davis. 5 (49): 4 via Gale.
  22. Grunin, Lori (February 14, 1989). "$595 80386SX Upgrade for 80286 Machines". PC Magazine. Ziff-Davis. 8 (3): 51 via Google Books.
  23. Grossman, Evan O. (July 31, 1989). "Low-cost upgrades to 386SX systems readied by 3 firms". PC Week. Ziff-Davis. 6 (30): 15 via Gale.
  24. Musich, Paula (December 12, 1988). "Pair of firms announce plans to develop an FDDI interface". PC Week. Ziff-Davis. 5 (50): C9 via Gale.
  25. Smalley, Eric (June 26, 1989). "RISC processor to provide power for FDDI nets". Digital Review. Reed Business Information. 6 (25): 13 via Gale.
  26. Shandle, Jack (September 1989). "A firm FDDI standard has vendors scrambling for a piece of the action". Electronics. Endeavor Business Media. 62 (9): 25 via Gale.
  27. Rooney, Paula (September 7, 1989). "LAN-controller makers jump the FDDI gun". EDN. UBM Canon LLC. 34 (16): 3 via Gale.
  28. Staff writer (July 3, 1989). "New adapter card links workstations to FDDI networks". PC Week. Ziff-Davis. 6 (26): 39 via Gale.
  29. Martin, James A. (November 16, 1987). "Board makers staking out Mac turf". Computerworld. IDG Publications. XXI (46): 13.
  30. Staff writer (October 23, 1989). "News products: PCs & workstations". Computerworld. IDG Publications. XXIII (43): 49, 52 via Google Books.
  31. Staff writer (November 25, 1991). "Pipeline: Agreements". InfoWorld. IDG Publications. 13 (47): 100 via Google Books.
  32. Buckler, Grant (September 12, 1990). "New product: low-priced 386SX takes aim at mail-order vendors". Newsbytes. The Washington Post Company via Gale.
  33. Staff writer (January 1991). "Recycling gains ground, customer survey reveals". Geyer's Office Dealer. Geyer-McAllister Publications. 156 (1): 23 via Gale.
  34. McConville, James A. (November 12, 1990). "Cumulus item fuels all-in-one category". HFD. BridgeTower Media. 64 (46): 111 via Gale.
  35. Skillings, Jonathan (October 29, 1990). "Cumulus, Canon PC products offer built-in modem, fax". PC Week. Ziff-Davis. 7 (43): 29 via Gale.
  36. 1 2 Matzkin, Jonathan (February 26, 1991). "Cumulus GLC/SBS: A Survival Kit for the Home Office". PC Magazine. Ziff-Davis. 10 (4): 48 via Google Books.
  37. Jerome, Marty (March 1991). "All-in-One Machines Promise You a 'Bundle'". PC/Computing. Ziff-Davis. 4 (3): 278 via Gale.
  38. Lennon, Anthony; John Gartner (May 11, 1992). "33-MHz 80386DX systems". Computing Canada. CEDROM-SNi. 18 (10): 20 via Gale.
  39. Rose, Phil (April 29, 1991). "There's a lot of life left in 386/33 development". Computer Reseller News. UBM LLC (418): 91 via Gale.
  40. Boudette, Neal (May 27, 1991). "486-based PCs, SX notebooks blitz Comdex". PC Week. Ziff-Davis. 8 (21): 21 via Gale.
  41. Staff writer (August 19, 1991). "News briefs". PC Week. Ziff-Davis. 8 (33): 24 via Gale.
  42. Staff writer (September 23, 1991). "Cumulus offers 'plug & play' home PC". HFD. BridgeTower Media. 65 (39): 153 via Gale.
  43. O'Brien, Bill (January 1992). "One that almost made it". Computer Shopper. SX2 Media Labs. 12 (1): 189 via Gale.
  44. 1 2 Zimmerman, Michael R. (July 6, 1992). "Cumulus targets Micro Channel sites with 2 PCs". PC Week. Ziff-Davis. 9 (27): 37 via Gale.
  45. Scheier, Robert L. (February 10, 1992). "CORE to resell IBM PS/2 95 with its RAID 3 drive array". PC Week. Ziff-Davis. 9 (6): 6 via Gale.
  46. Rosch, Winn R. (January 28, 1992). "MCA Memory Boards: Expansion Without Delay". PC Magazine. Ziff-Davis: 221–252 via Google Books.
  47. Howard, Bill (August 1992). "386 and 486 Notebooks: Fitting the World Inside Your Briefcase". PC Magazine. Ziff-Davis. 11 (14): 110–262 via Google Books.
  48. 1 2 Khermouch, Gerry (June 29, 1992). "On the Inside Track". Electronic News. Sage Publications. 38 (1918): 1 via Gale.
  49. Staff writer (May 11, 1992). "Recent SEC Filings". The Wall Street Journal. Dow Jones & Company: C19 via ProQuest.
  50. Markowitz, Elliot (May 18, 1992). "Cumulus signs on Lowe, Crowell: vendor to raise $31M in IPO". Computer Reseller News. UBM LLC (474): 2 via Gale.
  51. 1 2 3 4 Thompson, Chris (September 28, 1992). "3 Creditors Sue Cumulus". Crain's Cleveland Business. Crain Communications. 13 (39): 1 via ProQuest.
  52. Kupfer, Andrew (September 21, 1992). "Who's Winning the PC Price Wars?". Fortune. Time Incorporated. 126 (6): 80–82. Archived from the original on October 18, 2022 via the Internet Archive.
  53. 1 2 Thompson, Chris; David Prizinsky (October 19, 1992). "Cumulus Moves to a Smaller Site, Trims More Staff". Crain's Cleveland Business. Crain Communications. 13 (42): 3 via ProQuest.
  54. 1 2 Thompson, Chris (November 2, 1992). "Three More Cumulus Suppliers Sue Over Non-Payment of Bills". Crain's Cleveland Business. Crain Communications. 13 (44): 3 via ProQuest.
  55. 1 2 Prizinsky, David (November 30, 1992). "Former Cumulus Division Narrows Focus in New Life". Crain's Cleveland Business. Crain Communications. 13 (48): 15 via ProQuest.
  56. Phillips, Stephen (October 20, 1992). "Computer supplier sells unit". The Plain Dealer: 1 via ProQuest.
  57. 1 2 Prizinsky, David (March 22, 1993). "Ex-Cumulus employees sue over unpaid wages". Crain's Cleveland Business. Crain Communications. 14 (12): 4 via ProQuest.
  58. Greene, Jay (December 12, 1992). "Cumulus Corp. Lays Off 50 Workers". The Plain Dealer: 3D via ProQuest.
  59. Greene, Jay (January 9, 1993). "Creditors Push Firm Toward Bankruptcy". The Plain Dealer: F1 via ProQuest.
  60. Prizinsky, David (March 29, 1993). "Going, going ... and gone; Cumulus' remains on block". Crain's Cleveland Business. Crain Communications. 14 (13): 2 via ProQuest.

Further reading