Finally an update...
1991:
- Commodore starts working on a low-cost replacement for the Commodore 64, known as the Commodore 65. (OTL this system was developed, but never produced in number). They also begin the long process of upgrading their Amiga product line, starting with the 500+ and 3000.
- IBM releases PC-DOS 4.2 for its 8086 and 80286-based computers. Ironically, Microsoft's decision to stop MS-DOS development with 4.1 was short-sighted; most home computers sold in 1991 still did not use an 80386 or 80486 and PC-DOS actually gained market share from Microsoft until the last 80286-based systems left the market in 1993.
-IBM and Microsoft jointly release the 2.0 series version of OS/2. Highly successful among mid-and-high-end computers, the system is often criticized for slow performance on anything but top-end hardware.
-the success of the 88000-based NeXTcube and NeXTstation among ultra-high-end users has inspired a growing consensus that RISC processors were the wave of the future. The NeXTcube, available since 1988, has roughly the same performence as professional workstations but cost a lot less. Unlike OTL, the NeXT systems included a hard drive (albeit a smallish one, only 120 mB for a base model in 1988), rather than the larger but very slow magneto-optical drive. When BusinessLand stopped selling Compaq PCs in 1989, they picked up NeXT machines, which did not meet highly optimistic expectations but sold fairly well nonetheless, especially for CAD/CAM, graphical design, and, most importantly, the first World Wide Web server. (in the 1988-1993 period, about 250,000 NeXTs are sold, or about 5x their OTL rate).
-Sanyo drops out of the US market.
-A young man named Linus Torvalds begins development of his own operating system, Linux.
-IBM introduces the PS/1 Series of home computers.
1992:
- Commodore releases several new systems. The 65 is released (and Commodore withdraws the 64 from the North American market simultaneously); its sales in North America are fairly poor but it proves to be quite popular in 'emerging' markets - Eastern Europe, South America, and especially India prove to be sales facilities. Of the 10 million 65s sold from 1992 to 2000, over 6 million are sold in India (being built at a Commodore facility in India, they do not have the same tariff restrictions as most computers do, and India's growing middle class clamors for computers). The 65 is actually used for business in some areas, the built-in floppy drive and more advanced BASIC make it somewhat more suitable than the 64 for these tasks (although in Western nations, businesses prefer PC-compatibles, which are much better for advanced roles).
-Likewise, Commodore releases the Amiga 1200, which slots between the 500+ and 2000. They decide against developing a low-end 500+ replacement (which in OTL became the 600, which turned out to be a fiasco), deciding that the 500+ could sell for another year or two until it could be retired in favor of the 1200. They also start developing a second games system, this time based on the 1200 and with a CD-ROM drive: the Amiga 32CD.
-Kaypro stops producing 'portable-brick' computers, concentrating entirely on the new and growing laptop and notebook markets. They release the first notebooks based on Intel's new 386SL and 486SL processors, although Toshiba, IBM, and Apple are hot on their heels.
-AST's assets are purchased by Acer.
- Microsoft and IBM begin to fracture on the fate of OS/2 and its financial and intellectual property.
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As of 1992 and the Tenth edition of 'The Computer Book', the various computer brands
IBM-compatible
IBM - PS/2 Series, PS/1 Series, Thinkpad.
Apple - Performa series, Quadra series, PowerBook series
Compaq - Deskpro series, Presario series, Portable series
Epson - QX-250 series, QX-300 series
Radio Shack - 2000 series, 3000 series, 4000 series
TeleVideo
Victor
Morrow
Hewlett-Packard
Kaypro - Kaypro/p series
Hyundai - PC-500, PC-2000 (80286-based)
Packard Bell
Acer
Dell - Dimension series
Gateway 2000
NEC
Hitachi
Motorola 680x0 series:
Atari - ST series, Falcon
Commodore Amiga - 500+, 1200, 2000, 3000
RISC-based
Acorn Archemides
NeXTstation
Other:
Apple - IIgs (WDG 65816) - educational market only
Commodore - 64 (MOS 6510) - being phased out, 65 (MOS 4510)