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- SUMMARY: IBM COMPUTER AND COMPATIBLE TYPES
-
-
-
- PC: 8088 CPU (Central Processing Unit), five 8-bit slots,
- 4.77Mhz.
-
- PCjr: 8088 CPU, no slots -- not compatible with other PC hardware.
-
- XT: 8088 CPU, eight 8-bit slots (a PC with a hard disk and extra
- slots).
-
- Turbo PC: Non-IBM "clone" that is compatible with a PC and
- XT, but it may use an 8086 or NEC V30 CPU (compatible with
- 8088) and runs at 6- or 8-Mhz so some timing-sensitive
- programs such as games either fail or run too fast. It
- usually has eight slots.
-
- XT-286: 80286 CPU, eight slots (three 8-bit, five 16-bit), 6 Mhz
- clock with no wait states (as fast as an 8-Mhz AT). Plug-in
- cards for an AT won't fit. Normal PC cards fit, but they
- don't take advantage of the 16-bit bus speed.
-
-
- AT: 80286 CPU, eight slots (two 8-bit, six 16-bit) 6Mhz or 8Mhz
- An AT is fast and makes a good business machine.
-
- PS/2: One of the latest IBM computers. All models use the 3-½"
- diskettes.
-
- Models 25 and 30 are improved versions of the old PCs (still
- card-compatible).
-
- Models 50 and 60 are 286-based PCs with a 32-bit bus-design
- (MicroChannel) that is not compatible with older adapter
- cards.
-
- The Model 80 is 386-based. It's fast, powerful, and VERY
- expensive!
-
- 80386 The 80386 CPU chip is very fast and provides as big a jump in
- performance as did the 80286 for users of the 8086.
-
- 80386SX The SX version of the 386 CPU chip is less expensive, has as
- much processing power as the 386, but runs at a lower clock
- speed.
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-
-
- 80486: The newest technology on the street boasts an 80485 CPU. It's
- a very fast, very powerful, and very, very expensive computer
- chip. One problem is that not much software has been written
- that can take advantage of its power.
-
- 80586 An Intel dream, supposedly due out in the mid-ninties.
- Computers built around this chip will be super fast and
- process an awesome amount of power. One thing we each
- need to decide is whether or not we need this kind of power.
-
-
- Written by Eugene A. Zeak, Jr.
-