Others - overview Computer Profi OS and CP / M.

            Profi '& CP / M

              Part One

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(C) Penetrator (VFHB)


 By early 2000, about the park SPECTRUM-compatible computers 
practical forgotten. But I think it is absolutely

not acceptable. Spectrum as he was, and
remains the most accessible (at) home computer. I want to talk 
about one of its varieties - SINCLAIR PROFI

3 +.
 Profi is available in several different
performance, but I'll talk about Profi 3 +
PCB version 5.3.
 Structurally, the computer is made on
two boards:
 1.nizhnyaya - very complex;
 2.verhnyaya - board periphery.
 They have almost everything you need
good SPECCY: AY 8910 (AY 8912)
controller drives (up to four) with
PLL komport CCITT_V24/RS-232C, which lets you connect a mouse, 
printer, plotter, HAYES - compatible modem and even combine the 
components into the local grid. Still there is a parallel 
port-based m / s KR580VV55 that provides the

Printer interfaces CENTRONIX,
IFSP, IRPR, IRPR-M; external EPROM programmer and music fees 
COVOX. So is there and the hardware clock based on the m / s

KR512VI1. As you may have guessed,
they provide a readout of real time and have the opportunity to 
work the alarm. It bears mentioning integrated IDE, which 
allows connect the HDD (up to two) in any capacity.

True screw will not work in the regime
SINCLAIR (on this work is under way and we hope that this 
time), and if want to know where - he (screw) will be

work, read on: 0). Possible to set up a palette of 256 colors,
turbo up to 15 MHz, and even up to 1MB of RAM.
 And most importantly there is a button that
to disable all this rulez. You probably
sprosite: "Why is it necessary?", answer -
some of the program's written a long time or
lamer, so refuse to work
included with the upper memory, in most cases this is due to 
the fact that some "smart" barter to save memory does not 
indicate the full address expansion port. Write # FD, instead of

# 7FFD. So, this cuts off a button
upper memory, and for one all the other
ruleznye shtukovinki.
 Software Profi almost completely
compatible with the company SPECTRUM 48/128,
but as some advanced
People - this is 20% of consumer power. Where another 80%? 
Apparently they gave a still greater rulez (sux?)

system CP / M.
 What kind of animal? In a word you do not answer, get ready to 
read titobayty text: 0)

 CP / M - is the disk operating system written for 8 bit comp.
 This mode gives companies the opportunity to work in an 
extended color screen (512 x 240 pixels), with the possibility 
of coloring each byte 16 colors

from a palette of 256 colors, hardware multikolorchik. Symbolic 
modes 64H30 and 80H30 characters provide COOL'ny

Eye texts conclusion.
 One of the main advantages (disadvantages?) That the system is 
not in memory company, and is downloadable.

Can be loaded with both the flop and screws. Of course with the 
screws is much steeper (and principal faster).

 The fact that the system boots, I would
attributed more to the merits than faults. I explain. In the 
case of obsolescence (all will be there) a - a component of the 
system and when new, the whole upgrade to conclude in that 
erase the old and in its place copy new.

 But still - as in CP / M there is a considerable
inconvenience, it is wildly braking, even with
accelerated turbo mode 11 - 12 megahertz. But despite the 
brakes - this system has the right to life.  Controlled system 
through an advanced system BIOS and drivers.  If you do not 
like CP / M or its drivers, utilities, and maybe she's just 
tired, you interfere with nobody to write their podprogi own or 
even their own DOS. Shorter field for creativity and 
samovyrozheniya quite extensively.  In the software for CP / M 
rather podotstala from TR DOS, under her long

do not write, and if they write, then it is successfully
hide. But on the other side under the CP / M
written and also very few long
to useful prog. For example:
 PGM - prog programmer support;
 Grand Croix - graphical editor
allowing the use of graphic
advantages of CP / M mode;
 Write System - a powerful word processor, which has many 
service opportunities;  Super Calc 2 - spreadsheet, which 
allows calculation of household income to the economy average 
enterprise. Has a "witness" help;  dBase - spreadsheet. It 
allows you to compose and work effectively with databases;

 Pcopy 2 - universal copier TR
DOS disks. He has great speed up and user-friendly interface;
 Ada, Fortran, Turbo Pascal, Lisp, Cobol, C, PL 1, Basic, 
Prolog - it all high-level languages that are implemented 
under CP / M and realizaovanny under TR DOS;

 ADJ - a program with cool interface
allows you to listen through the music board "Covox music 
files, obtained by processing the file format ". STM" (Scream 
Tracker - is on pisyah an editor).

 All programs are not immediately to list
there are plenty of viewer pictures
which vyuvyat karinki different formats, different very 
detailed database. And much more.  And who wants to know how 
the CP / M 

                      to by continued ..