Н.Н. Курпешко Английский язык Методические указания для обучения студентов II курса (III семестр) специальности 180400

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Cartesian axis system, defining the various positions of the cutting tool in relation to the work part. By sequencing these positions in the program, the machine tool is directed to accomplish the machining of the part. A position feedback control system is used in most NC machines to verify that the coded instructions have been correctly performed. Today a small computer is used as the controller in an NC machine tool. Since this form of numerical control is implemented by computer, it is called computer numerical control, or CNC. Another variation in the implementation of numerical control involves sending part programs over telecommunications lines from a central computer to individual machine tools in the factory. This form of numerical control is called direct numerical control, or DNC.

Many applications of numerical control have been developed since it's initial use to control machine tools. Other machines using numerical control include component-insertion machines used in electronics assembly, drafting machines that prepare engineering drawings, coordinate measuring machines that perform accurate inspections of parts. In these applications coded numerical data are employed to control the position of a tool or workhead relative to some object. Such machines are used to position electronic components (e. g., semiconductor chip modules) onto a printed circuit board (PCB). It is basically an x-y positioning table that moves the printed circuit board relative to the part-insertion head, which then places the individual component into position on the board. A typical printed circuit board has dozens of individual components that must be placed on its surface; in many cases, the lead wires of the components must be inserted into small holes in the board, requiring great precision by the insertion machine. The program that controls the machine indicates which components are to be placed on the board and their locations. This information is contained in the product-design database and is typically communicated directly from the computer to the insertion machine.

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ЛИТЕРАТУРА:

1.U.S. News and World Report, October 8, 2000.

2.The Independent Guide to Personal Computing, December 6, 1999

3.Агабекян И.П. Английский для технических вузов. – Ростов н/Д, 2000.

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СОДЕРЖАНИЕ:
UNIT I ..................................................................................................	2
Engineering as a profession..................................................................	2
Electrical and electronics engineering..................................................	2
Electric power and machinery..............................................................	2
Electronics............................................................................................	2
Communications and control................................................................	3
Computers ............................................................................................	3
Mechanical engineering .......................................................................	3
Safety engineering................................................................................	4
My future profession ............................................................................	4
UNIT II ……………………………………………………………...10
What is computing?............................................................................	10
Information, machine words, instructions, addresses and reasonable
operations ...........................................................................................	16
How much should an educated man know about computers?............	19
UNIT III . ……………………………………………………………20
COMPUTERS....................................................................................	20
What is a computer? ...........................................................................	20
Hardware ............................................................................................	23
Input and output units (I/O Units) ......................................................	30
Central processing unit.......................................................................	35
UNIT IV . ……………………………………………………………41
Types of software ...............................................................................	41

Famous people of science and engeneering ....……………………...45

The basic principles of programming.................................................	46
Programming languages .....................................................................	48
The interface.......................................................................................	50

High level programming languages:

Fortran and pl/1…………………………………….……….………. 53

Algol...................................................................................................	57
High level programming languages: basic and pascal...	……………57
The с programming language.............................................................	59
A turbo languages family ...................................................................	60

UNIT V………………………………………………………………64

Computers……………………………………………………….64

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Explaining micro ................................................................................	64
In a computer user group....................................................................	65
Talking about computers ....................................................................	67
The home computer............................................................................	72

UNIT VI . ……………………………………………………………73

Modern computer technologies ...............................………………...73

Operating systems ..............................................................................	73
Windows ............................................................................................	77
UNIT VII …………………………………………………………..81
The pros and cons of the internet .......................................................	81
History and future of the internet .......................................................	81
The internet ........................................................................................	82
Introduction to the www and the internet..........................................	83
Famouse people of science and engineering ......................................	87
UNIT VIII ………………………………………………………….90
Automation.........................................................................................	90
Introduction ........................................................................................	90
History of automatic control...............................................................	92
Control engineering practice ..............................................................	96
Examples of modern control systems.................................................	98
Automated production lines ...............................................................	98
Numerical control...............................................................................	99

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Надежда Николаевна Курпешко Тамара Кузьминична Румас Альбина Леонидовна Ефимова Ирина Борисовна Шестакова Елена Владимировна Пешкова

АНГЛИЙСКИЙ ЯЗЫК

Методические указания

для обучения студентов II курса (III семестр) специальности 180400 “Электропривод и автоматика промышленных

установок и технологических комплексов”

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