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- Back to the Future
-
- In this little article we'll be taking a look at what a
- magazine in the 1980s thought the computers of the 1990s
- would be like. Here we go:
-
- 1. Keyboard Display
- """""""""""""""""""
- The 32-bit microprocessor's power will allow the display of
- information in a number of forms simultaneously. For
- instance, the main screen might show the view from the
- command seat of a spacecraft, while a subsidiary screen
- mounted on top of the keyboard/command console might display
- control information from the cockpit.
-
- 2. Keyboard
- """""""""""
- Despit the innate ineffieciency of the QWERTY keyboard, it
- is unlikely that serious attempts will be made to establish
- an alternative layout. Fully sprung typewriter-style keys
- are by far the most popular - though Hall effect keys, which
- use magnets instead of springs, are likely to become
- commonplace. The electronic switches themselves may well be
- replaced by a system that relies on the keys interrupting a
- matrix of laser beams.
-
- 3. Monitor
- """"""""""
- Projector televisions have been available since the
- beginning of the 1980s but their scope is limited by the
- light emitting power of the cathode ray tube. Advances in
- CRT technology are likely to bring us room-wide projection
- systems. Early projector televisions had to make use of
- special curved screens, but the latest models can already
- focus onto a flat surface.
-
- 4. Alternative Processors
- """""""""""""""""""""""""
- In addition to the main 32-bit processor, it is likely that
- the micro of the 1990s will be host to additional processors
- in the form of plug-in modules. Some of the processing - for
- example, the operation of a particular peripheral or sorting
- a file of data - can then be "subcontracted" by the main
- processor to the most suitable sub-processor. Alternatively,
- inexpensive plug-in modules could emulate the classic
- computers of the 80s so that software from any other
- computer could be run without modification.
-
- 5. Random Access Memory
- """""""""""""""""""""""
- The 32-bit processor can address up to almost 4,300 million
- memory locations - a far cry from the 65,536 byte limit
- imposed by the eight-bit processors that brought the
- microcompuiter into the home.
-
- 6. Communications
- """""""""""""""""
- While dish aerials for the reception of signals from
- satellites will be commonplace in the 1990s and most
- telephone channels will be digitised, rather than relying on
- analogue signals, there will still be a need to regulate the
- speed of transmission and reception. These communications
- controllers will perform some of the control functions of
- today's modulater/demodulaters (Modems! - David).
-
- 7. Power Supply
- """""""""""""""
- The increased load and the multiplicity of devices connected
- to the microcomputer are likely to require a significantly
- greater power supply that those in use today. It will
- incorporate smoothing circuits and rechargeable battery
- back-up, so that mains fluctuations or power failures do not
- cause data to be lost or corrupted.
-
- 8. Portable Screen
- """"""""""""""""""
- Flat-screen technology - probably involving a fast-acting
- liquid crystal matrix and perhaps connected to the central
- processor by an infra-red (or even microwave) link - may be
- employed to display text and graphic matter. If this device
- were touch sensitive, too, it could double as a menu
- selection board and bit-pad or digitiser.
-
- 9. CD-ROM
- """""""""
- The Compact Disk ROM, which uses laser beam to read
- optically-encoded information, is likely to replace
- conventional ROM cartridges because of its greater capacity
- - a typical CD-ROM will hold four megabytes (What? Now it's
- 600Mb!!! - David)
-
- 10. Floppy Disks
- """"""""""""""""
- By the end of the decade, floppy disks should have evloved
- to compete directly with Winchester disks, both in speed and
- data-packing densities. At the same time they should reduce
- in diameter to less than the current 3 inches.
-
- 11. Infra-red mice
- """"""""""""""""""
- The IBM PC Junior already makes use of infra-red radiation
- to transer data from keyboard to computer without a cable
- link. This technology could provide the interconnection
- between all peripherals, including mice, thereby eliminating
- the "spaghetti effect". Both left and right handed models of
- mice will be available, of course (but they're not! -
- David).
-
- 12. 32-bit Microprocessors
- """"""""""""""""""""""""""
- The first 32-bit microprocessor-based home computers
- appeared in 1983, but were forced to rely on 16- or even
- eight-bit data buses to maintain compatibility with existing
- memory and chips and thus could not deliver the power they
- promised. With the introduction of devices such as
- Motorola's 68032 chip, which offers 32-bit processing and
- 32-bit data transfer, the speed and data-handling
- capabilities of these large-capacity microprocessors will
- become the accepted standard. Many minicomputers costing
- tens of thousands of pounds have 32-bit microprocessors.
-