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MECIPT1 A PAGE OF HISTORY

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Title: MECIPT1 A PAGE OF HISTORY

1
MECIPT-1A PAGE OF HISTORY

2
MECIPT-1, general data

Computer designed and built between 1959-1961 at
Politehnica University of Timisoara. It was the
second computer built in Romania, the first one
being CIFA-100 (Calculatorul Institutului de
Fizica Atomica) form Bukarest in 1958.
The initial team one mathematician, one engineer
and one technician the leader of team was I.
Kaufmann, mathematician, lecturer at the West
University of Timisoara.
MECIPT abbreviation for Masina Electronica de
Calcul a Institutului Politehnic Timisoara.
In the beginning, the entire work was upholds by
chair of Bazele Electrotehnicii (leader Prof.
Plautius Andronescu).
1961 the year of finishing the hardware of
computer (central unit, memory, peripheral
devices, etc.)

3
MECIPT-1, general data

Hardware
Logical circuits with electronics tubs
Memory of magnetic roll, 4 Ko capacity
Paper tape reader and printer.
The operating micro-system (rudiments)
Was built in several years (1961-1968/9)
Different components
I/O supervisor (input both for numerical data and
programs, output for numerical data)
Translators and Compilers (both for a specific
assembly language and for a high level language
like FORTRAN)
Mathematical library.

4
MECIPT-1, general data

Utilization
Most likely in designing and research.
Other similar computers
CIFA-100 (Calculatorul Institutului de Fizica
Atomica), built in Bucharest, 1958
DACICC-2000 (Dispozitivul Automat de Calcul al
Institutului de Calcul Cluj), built in Cluj, 1962

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6
Hardware

Computer of the first generation with certain
actual characteristics.
Hardware structure
Common structure in that time (the year 1960)
Arithmetical and logical unit standard
arithmetical and logical functions.
- Basic arithmetic register of 31 digits (30
for work and a digit for parity check). Usually
the arithmetical operations (additions,
subtractions, multiplications, divisions) have
been perform between the content of this
register and the content of a cell memory
(specified by an address)
- Inner representation for numbers (both
integers and real) inverse code
- Instruction register of 10 digits successive
addresses of instructions for execution
- Elementary logical circuits ( ) with
electronic tubs (more than 2 thousand)
- Computing speed about 100 additions per
second.

7
Hardware

Memory a unique type of memory (RAM, in actual
terminology)
- magnetic roll and I/O headers
- electronic block for access
- capacity 4Ko.
Peripheral devices
- mechanical reader of perforated paper tape
- mechanical printer (actually a common
typewriter adjusted for specific necessity).
Command board
- the main registers visualized on the board
(the basic arithmetic register, instructions
register,etc.)
- control devices
- usually the programmer should checked the
execution of his program on this board.

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9
Software

Rudiments of operating micro-system
I/O supervisor
- reading and writing numbers there were
several variants, short float decimal numbers
between and , with natural writing
and printing (using a comma in the right place)
and long float decimal numbers between
and
-reading and writing programs from the paper
tape, also in two variants, for 8 or 16 base
number system
- Input/Output system only for integer numbers
between
-10.000 and 10.000 (so the capacity of memory
was considerable increased) and specific
micro-programs for
common operations

10
Rudiments of operating micro-system

11
Rudiments of operating micro-system

12
Software

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Software

Programing
- Cod machine programming
- Assembly language programming 1968
designing and achievement one of the first
translator for a specific assembly language in
our country (Autocod) the main designer D.
Farcas
- High level programming language, like FORTRAN
IV standard structures as
. General arithmetic expressions
. Simple and indexed variables (one or six
indexis of general arithmetic form)
. If then structure
. For cycle of the form For i1 to n
Do
. Subprograms with or without formal
parameters.

14
Software

Mathematical library
various routines for numerical algorithms
- Linear algebra linear systems, matrices
inversion , eigenvalues and eigenvectors
- Interpolation and approximation Lagrange and
Newton interpolation, least squares method,
Thebychew approximation polinomial
- Nonlinear systems of equations various
iterative methods (Newton, secant, conjugate
gradient, Broyden)
- Numerical integration trapezoid formula,
Simpson formula, etc.
- Ordinary differential equations and Partial
differential equations Euler method, different
explicit and implicit formulas, difference
schemes
- Statistical data processing

15
Mathematical library

16
Applications

Applications in design and research
Most of the problems solved come for design an
research usually they involved numerical
treatment.
- The calculus for designing the cupola of
national exposition from Bukarest
-Most of the calculus for Vidraru dam
- Various calculus of resistance in civil and
industrial buildings
- The study of cavitation phenomenon for hydro
power station Iron gates (Portile de fier) at
Danubiu
- The water network for Arad
- The design calculus for power machine (UCM
Resita)
- Computing the gravitational anomalies in the
geographical basin Petrosani for geological
prospections

17
Training in informatics

Training
In that time MECIPT-1 was the unique computer
from universities in our country.
- 1964 starting the training in informatics with
a group of students from Electrotechnical
Faculty of Technical Universiity of Timisoara it
was the first section of informatics in
universitary studies the lectures were give by
the MECIPT1 employers. Also the students made
practices at MECIPT-1
- Students form Bukarest, Cluj and Iasi have
made their practice in informatics at MECIPT-1
- Training for engineers and other specialists
for Timisoara and other cities in informatics.

18
Research

19
Research

Assembly languages and their translators, G.
Gavrilescu, 1966
Simulation and modeling, A. Cicortas, 1968. For
electronic circuits design the minimization of
boolean functions.

20
Team of MECIPT-1
21
The mathematicians