Running the computer program - раздел Иностранные языки, Английский язык. Основы компьютерной грамотности The Operating System Is A Collection Of Program Provided By The Computer's Ma...
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 data stored on secondary storage devices, and to copy data from any input device to any output device. These programs are called control programs, language programs and utility programs.
The control program (often called the supervisor, monitor, or executive) is a main-storage-resident program. Its functions are to schedule jobs, shedule input and output for our programs, and to monitor the execution of our programs.
Английский язык. Основы компьютерной грамотности 156
The language processors are programs that translate source programs into object programs. There are three types of language processors: assemblers, compilers, and interpreters. Each language has its own language processor.
The service programs are programs that are commonly used in all data processing centers. They have functions that are required by everyone using a computer. Examples of service programs include linkage editors to prepare object programs for execution, a librarian to catalog programs into a library area on magnetic disc, utility programs to transfer data from device to device, and sort-merge programs for sorting data on magnetic tape or disk.
3. Testing the computer program
There are two kinds of errors or bugs with which programmers must deal. The first type is the coding error. Such errors are syntax errors that prevent the language processor from successfully translating the source program to object program code. The language processor identifies the nature and the location of the error on the source program listing, so these errors are relatively easy to find and correct. The second type of bug is the logic error. The computer program can be successfully translated, but the program does not produce the desired results. These errors are generally much more difficult to find and to correct than are coding errors. Logic errors can be avoided through careful planning of the program logic, but it is the programmer's responsibility to test thoroughly all of the program's functions, in order to verify that the program performs according to specifications.
There are many tools provided to the programmer to help in debugging the program logic. These tools are called debug packages or tracing routines. They assist the programmer in following the logic by printing out calculation results and field values used in making logic decisions in the program. In a few cases it may be necessary to use a memory dump — a printout of the instructions and date held in the computer's memory — in order to find the cause of logic errors.
ИТОГОВЫЙ ТЕСТ
1. Подберите вместо пропусков подходящее по смыслу слово.
1. The most common____ for planning the program logic
are flowcharting and pseudocode.
a) technologies; b) technics; c) techniques
2.______ was designed for dealing with the complicated
mathematical calculations of scientists and engineers, a) COBOL; b) FORTRAN; c) PL/I
3.______ is the foundation of any programming languages.
a) a set of rules; b) a group of numbers; c) a lot of instructions
4. I / О______ match the physical and electrical charac teristics of input-output devices.
a) interchanges; b) interfaces; c) interpretations
5. Letter-quality, dot-matrix and ink-jet printers are all printers.
a) line; b) page; c) character
6. The most common device used to transfer information from the user to the computer is the_____ .
a) keyboard; b) printer; c) modem
7. Input-output units link the computer to its external
a) requirement; b) development; c) environment
8. I / О devices can be classified according to their speed, visual displays being______ devices.
a) high-speed; b)medium-speed; c) low-speed
2. Согласуйте слова в левой колонке с их интерпретаци ей, предложенной справа.
1. Computer a) an electronic device accepting data pro-
cessing results from the computer system;
2. Input b) the unit performing arithmetic opera-
tions called for in the instructions;
Английский язык. Основы компьютерной грамотности158
3. Output с) the unit coordinating all the activities of
various components of the computer. It reads information, enterpretes instructions, performs operations, etc.;
4. Software d) a set of programs designed to control the
operation of a computer;
5. Hardware e) lists of instructions followed by the con-
trol unit of the CPU:
6. Storage f) an electronic device keying information
into the computer;
7. CPU g) the unit holding all data to be processed,
intermediate and final results of processing;
8. CU h) visible units, physical components of a
data processing system;
9. ALU i) the unit that directs the sequence of sys-
tem operations, selects instructions and interpretes them;
10. Program j) a device with a complex network of elec-
tronic circuits that can process information, make decisions, and replace people in routine tasks.
ДК ББК Англ КТК Р... Научный консультант Соколов С В доктор технических наук профессор действительный член Академии образования и Ака демии Военных наук...
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Running the computer program
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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-
STEPS IN THE DEVELOPING OF COMPUTERS
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
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
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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