STEPS IN THE DEVELOPING OF COMPUTERS - раздел Иностранные языки, Английский язык. Основы компьютерной грамотности 1. In 1948 Due To The Invention Of Transistors There Appeared The Possibi...
1. In 1948 due to the invention of transistors there appeared the possibility to replace vacuum tubes. The transistor occupied an important place on the way to computer development. The potential advantage of the transistor over the vacuum tube was almost as great as that of the vacuum tube over the relay. A tran sistor can switch flows of electricity as fast as the vacuum tubes used in computers, but the transistors use much less power than equivalent vacuum tubes, and are considerably smaller. Transis tors are less expensive and more reliable.They were mechani cally rugged, had practically unlimited life and could do some jobs better than electronic tubes. Transistors were made of crys- tallic solid material called semiconductor.
With the transistor came the possibility of building computers with much greater complexity and speed.
2. The integrated circuit constituted another major step in the development of computer technology. Until 1959 the fundamental logical components of digital computers were the individual electrical switches, first in the form of relays, then vacuum tubes, then transistors. In the vacuum tubes and relay stages, additional discrete components, such as resistors, inductors, and capacitors were required in order to make the whole system work. These components were generally each about the same size as packaged transistors. Integrated circuit
Английский язык. Основы компьютерной грамотности 64
technology permitted the elimination of some of these components and integration of most of the others on the same chip of semiconductor that contains the transistor. Thus the basic logic element — the switch, or "flip-flop', which required two separate transistors and some resistors and capacitors in the early 1950s, could be packaged into a single small unit in 1960. The chip was an important achievement in the accelerating step of computer technology.
3. In 1974 a company in New Mexico, called Micro Instrumentation Telemetry System (MITS) developed the Altair 8800, a personal computer (PC) in a kit. The Altair had no keyboard, but a panel of switches with which to enter the information. Its capacity was less than one per cent that of the 1991 Hewlett-Packard handheld computer. But the Altair led to a revolution in computer electronics that continues today. Hardware manufacturers soon introduced personal computers, and software manufacturers began developing software to allow the computers to process words, manipulate data, and draw. During the 1980s computers became progressively smaller, better and cheaper.
Today the personal computer can serve as a work station for the individual. A wide array of computer functions are now accessible to people with no technical background.
13. Поменяйтесь вариантами и выполните письменный перевод упр. 12.
TESTS
1. Подберите вместо пропусков подходящее по смыслу слово
1. Computers and their_____ equipment are designed by
a computer system architect.
a) engineering;^)! accessory: c) specific
2. Digital computers use numbers instead of analogous phys-
ical _____ .
a) symbols; b) equipment; c) quantities
3. Systems_____ are usualy stored in read-only memory.
a) hardware; b) software; c) firmware
65 Unit 5. Computer Systems: An Overview
4. A computer is a machine with a complex network of elec-
tronic _____ that operate switches.
a) circuits; b) cores; c) characters
5. In modern electronic computers the_____ is the device
that acts as a switch.
a) integrated circuit; b) diode; c) transistor
6. A number of actions that convert data into useful infor-
mation is defined as_____ .
a) data; b) processing; c) data processing
7. Computers can store, organize and retrieve great amounts
of information, far beyond the____ of humans.
a) capacities; b) capabilities; c) accuracy
8. The analyst_______ a computer for solving problems,
while the computer system architect_____ computers.
a) requires; b) designs; c) uses
9. The use of______ computers will continue to increase
with the growth in applications of microprocessors and minicomputers.
a) analog; b) digital; c) hybrid
10._____________________________ The development of third generation computers became possible due to the invention of____ .
a) integrated circuits; b) electronic tubes; c) transistors
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STEPS IN THE DEVELOPING OF COMPUTERS
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Ознакомьтесь с терминами текста 1.
computer literacy [ksm'pjute 'litsrasi] — компьютерная
грамотность problem-solving device — устройство, обеспечивающее
решение задачи
be aware of [bi a'wesr ov] — понимат
Ознакомьтесь с терминами текста 2
intricate ['mtnkit] — сложный, запутанный, electronic circuit [sbkt'romk 'sa:kit] — электронная цепь, схема
to operate switches [ops'reit 'switfiz] — приводить в действие переключатели
Text 2. WHAT IS A COMPUTER?
A computer is a machine with an intricate network of electronic circuits that operate switches or magnetize tiny metal cores. The switches, like the cores, are capable of being in one or two possi
Ознакомьтесь с терминами текста 1
calculating device [ksllcjiK'leitin di'vais] — вычислительное
устройство
multiple ['nultiplj — кратный
abacus ['aebakss] — счеты
slide rule ['slaid 'nil] — логар
Text У. THE FIRST CALCULATING DEVICES
Let us take a look at the history of computers that we know today. The very first calculating device used was the ten fingers of a man's hands. This, in fact, is why today we still count in tens an
Подберите вместо пропусковподходящее по смыслу слово.
1. British scientists invented a___ way of multiplying and
dividing.
a) mechanical; b) electrical; c) optical
2. A new branch of mathematics,____ , was invented in
Types of computers
The two basic types of computers are analog and digital. Analog computers simulate physical systems. They operate on the basis of an analogy to the process that is being studied. For ex-
Ознакомьтесь с терминами текста 2.
medium (pi. media) — носитель; среда capacity — емкость; объем (памяти); пропускная способность
media capacity — емкость носителя
data access time — время доступа к данным
Опишите схему.
93__________________________________ Unit 7. Storage
13. Переведите предложения, содержащие всевозможные формы причастий: Participle I, Participle II,
DIGITAL COMPUTER OPERATION
1. A digital computer is a machine capable of performing operations on data represented in digital or number form. The individual operations performed by a digital computer are very simple arithmet
TESTS 1. Вставьте вместо пропусков необходимые слова.
1. The time required for the computer to locate and transfer data in the storage device is called the data____ time.
a) sequence; b) access; c) value
2.______ memories have no
Text 2. THE CPU MAIN COMPONENTS
As it is known the two functional units of the CPU are the control unit (CU) and the arithmetic-logical unit (ALU). The control unit manages and coordinates the entire computer system. It obtains
MICROPROCESSOR - A BRAIN ТО THE HARDWARE
1. The microprocessor forms the heart of a microcomputer. The first microprocessors were developed in 1971 as a branch of pocket calculator development. Since then there has been a trem
A MODEM
The piece of equipment that allows a computer to communicate with other computers over telephone lines is called a modem. The modem allows the individual to access information from all over the w
Вставьте необходимые слова вместо пропусков.
1. A personal computer is a small relatively inexpensive de-
vice designed for an individual__________ .
a) person; b) producer; c) user
2. One of the fi
Text 1. COMPUTER PROGRAMMING
Programming is the process of preparing a set of coded instructions which enables the computer to solve specific problems or to perform specific functions. Theiessence of computer programmingjis
Text 2. PROGRAMMING LANGUAGES
Let's assume that we have studied the problem, designed a \
logical plan (our flowchart or pseudocode), and are now ready \
to write the program instructions. The pr
FORTRAN IV
The FORTRAN IVlanguage is oriented toward solving problems of a mathematical nature. The name FORTRAN comes from the combination of the words formula translation. The versi
RPG II Programming language
RPG IIis a business-oriented language. The name stands for report program generator. RPG is considerably different from other programming languages. RPG is, in effect, a large prew
The conversion of symbolic languages
As we see, most of the symbolic languages are oriented toward the particular application areas of business or science (math). The one problem with all symbolic languages is that none of them can b
Running the computer program
The operating system is a collection of program provided by the computer's manufacturer that allows us to shedule jobs for the computer, to translate source programs into object programs, to sort d
A BRIEF HISTORY of the INTERNET
In 1973 the Defense Advanced Research Projects Agency (DARPA) initiated a research program to investigate techniques and technologies for interlinking packet networks of various kinds. The objectiv
ENJOY YOURSELF
Quiz-game "Do you know more about computers"?(Divide into two groups and give answers to even (1 gr.) and odd (2 gr.)
question numbers.)
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technology permitted the elimination of some of these components and integration of most of the others on the same chip of semiconductor that contains the transistor. Thus the basic logic element — the switch, or "flip-flop', which required two separate transistors and some resistors and capacitors in the early 1950s, could be packaged into a single small unit in 1960. The chip was an important achievement in the accelerating step of computer technology.
4. A computer is a machine with a complex network of elec-
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