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QL 查詢語言 查詢語言 (Quantum Leap) Sir {Clive Sinclair}'s first
{Motorola 68008}-based {personal computer}, developed from
around 1981 and released about 1983. The QL ran Sinclair's
{QDOS} {operating system} which was the first {multitasking}
OS on a home computer, though few programmers used this
feature. It had a structured, extended {BASIC} and a suite of
integrated {application programs} written by {Psion}. It
featured innovative "{microdrives}" which were random-access
tape drives. It was not a success.
The microdrives were innovative but probably a mistake.
Though reliable and quite quick, they sounded like they were
going to jam and explode, releasing a shower of plastic
shavings and tape into your face.
The QL and QDOS only supported two graphics modes - ominously
named high res and low res. High res had four (fixed) colours
at a resolution of 512 by 256 {pixels}. Low res had 8 colours
(black, blue, red, magenta, green, cyan, yellow, white) plus a
flash mode with 256 by 256 pixels. The sound was next to
useless - single channel single oscillator with various
parameters for fuzz, pitch change. There was one internal
{font}, scalable to 2 heights and 3 widths.
Peripherals and enhancements included a {GUI} on a plug-in
{ROM}, accelerator cards ({Motorola 68020}, 4 MB RAM), {floppy
disks} and {hard disks}.
In 1996 there is still some interest in the QL, spread by the
Internet of course. {Emulation} software, {source code}, "The
QL Hackers Journal" and similar are still available, and many
QLs are on the net.
{(http://imaginet.fr/~godefroy/english)}.
(1996-08-01)
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