The document discusses computer programming and related concepts. It defines programming as developing instructions to carry out tasks involving sets of objects. It explains that programmers must analyze problems, develop solutions as objects and algorithms, and code programs for computers to execute. The key aspects covered are data, problem solving, coding, languages, virtual machines, control structures, classes, objects, and libraries.
Introduction to Programming Concepts By Aamir Saleem AnsariTech
Get the free powerpoint slide of introduction to programming concepts from Techora. Learn programming and other things from using our slides. For more visit : www.techora.net
This introductory slide program teaches you the foundational skills all programmers use, whether they program mobile apps, create web pages, or analyze data.
Computer programs are collections of instructions that tell a computer how to interact with the user, interact with the computer hardware and process data. The first programmable computers required the programmers to write explicit instructions to directly manipulate the hardware of the computer. This “machine language” was very tedious to write by hand since even simple tasks such as printing some output on the screen require 10 or 20 machine language commands. Machine language is often referred to as a “low level language” since the code directly manipulates the hardware of the computer.
By contrast, higher level languages such as “C”, C++, Pascal, Cobol, Fortran, ADA and Java are called “compiled languages”. In a compiled language, the programmer writes more general instructions and a compiler (a special piece of software) automatically translates these high level instructions into machine language. The machine language is then executed by the computer. A large portion of software in use today is programmed in this fashion.
Slides introduce hardware and software components of Computer System and it also discusses generations of Programming language and Programming language translators. It will be Useful for 1st Engineering students of all disciplines.
Introduction to Programming Concepts By Aamir Saleem AnsariTech
Get the free powerpoint slide of introduction to programming concepts from Techora. Learn programming and other things from using our slides. For more visit : www.techora.net
This introductory slide program teaches you the foundational skills all programmers use, whether they program mobile apps, create web pages, or analyze data.
Computer programs are collections of instructions that tell a computer how to interact with the user, interact with the computer hardware and process data. The first programmable computers required the programmers to write explicit instructions to directly manipulate the hardware of the computer. This “machine language” was very tedious to write by hand since even simple tasks such as printing some output on the screen require 10 or 20 machine language commands. Machine language is often referred to as a “low level language” since the code directly manipulates the hardware of the computer.
By contrast, higher level languages such as “C”, C++, Pascal, Cobol, Fortran, ADA and Java are called “compiled languages”. In a compiled language, the programmer writes more general instructions and a compiler (a special piece of software) automatically translates these high level instructions into machine language. The machine language is then executed by the computer. A large portion of software in use today is programmed in this fashion.
Slides introduce hardware and software components of Computer System and it also discusses generations of Programming language and Programming language translators. It will be Useful for 1st Engineering students of all disciplines.
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The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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http://sandymillin.wordpress.com/iateflwebinar2024
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Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
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Embracing GenAI - A Strategic ImperativePeter Windle
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This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
3. What Is Programming?
Developing instructions for carrying out a task
involving a set of objects.
Computer
A programmable device that can store,
retrieve, and process data.
Data
Information in a form that a computer can use
(e.g. letters, words, integer numbers, real
numbers, dates, times, coordinates on a map, e.c.t.)
4. Information
Any knowledge that can be communicated including
abstract ideas and concepts such as “the Earth is
round.”
Object
A collection of data values and associated Operations.
Virtually any kind of information can be represented
as an object.
Computer program (computer programming)
Instructions defining a set of objects and
orchestrating their interactions to solve a problem
5. A computer is not intelligent. It cannot analyze a
problem and come up with a solution.
A human (the programmer) must analyze the
problem, develop the objects and instructions for
solving the problem, and then have the computer
carry out the instructions.
What’s the advantage of using a computer if it can’t
solve problems? Once we have written a solution for
the computer, the computer can repeat the solution
very quickly and consistently, again and again.
6. In this way, the computer frees people from
repetitive and boring tasks.
To write a program for a computer to follow,
we must go through a two phase process:
◦ Problem solving
◦ implementation
7.
8. Problem-Solving Phase
◦ Analysis and specification. Understand
(define) the problem and identify what the
solution must do.
◦ General solution (algorithm). Specify the
objects and their interactions that solve the
problem.
◦ Verify. Follow the steps exactly to see if the
solution really does solve the problem.
9. Implementation Phase
◦ Concrete solution (program).Translate the object
specifications and algorithms (the general solution) into
a programming language.
◦ Test. Have the computer carry out the program and then
check the results. If you find errors, analyze the
program and the general solution to determine the
source of the errors, and then make corrections.
Once a program has been written, it enters a third
phase: maintenance.
10. Maintenance Phase
◦ Use. Use the program.
◦ Maintain. Modify the program to meet changing
requirements or to correct any errors that show up
in using it.
11. Class
A description of the representation of a specific
kind of object, in terms of data and operational
behaviours.
Algorithm
Instructions for solving a problem in a finite
amount of time using a finite amount of data.
A program is an algorithm that is written for a
computer. Java programs are generally referred to
as applications
12. Programming language
A set of rules, symbols, and special words used to
construct a computer program.
A programming language is a simplified form of
English (with math symbols) that adheres to a strict
set of grammatical rules.
Code
Instructions for a computer that are written in a
programming language.
Translating an algorithm into a programming
language is called coding the algorithm.
13.
14.
15. Documentation
◦ The written text and comments that make an
application easier for others to understand, use, and
modify
16. All data in a computer are stored and used in binary
codes, consisting of strings of 1s and 0s.
Instructions and data are stored together in the computer’s
memory using these binary codes.
Machine language
The language, made up of binary coded instructions, that
is used directly by the computer.
Assembly language
A low level programming language in which a mnemonic
represents each machine language instruction for a
particular computer.
17. Typical instructions for addition and subtraction
might look like this:
Assembly Language Machine Language
ADD 100101
SUB 010011
18. Although humans find it easier to work with
assembly language, the computer cannot directly
execute the instructions. Because a computer can
process its own instructions as a form of data, it is
possible to write a program to translate assembly
language instructions into machine code. Such a
program is called an assembler.
19. Assembly language represents a step in the right
direction, but it still forces programmers to think in
terms of individual machine instructions.
Eventually, computer scientists developed high-level
programming languages. These languages are easier
to use than assembly languages or machine code
because they are closer to English and other natural
languages.
20. Assembler
◦ A program that translates an assembly language program into
machine code.
A program called a compiler translates algorithms
written in certain high-level languages (Java,
C++,Visual Basic, and Ada, for example) into machine
language.
Compiler
◦ A program that translates code written in a high-level language
into machine code.
21. The text of an algorithm written in a high-level
language is called source code. To the compiler,
source code is just input data—letters and numbers. It
translates the source code into a machine language
form called object code
Source code
◦ Instructions written in a high-level programming
language
Object code
◦ A machine language version of a source code.
23. Java source code is translated into a standard machine
language called Bytecode.
Bytecode
◦ A standard machine language into which Java
source code is compiled.
No computers actually use Bytecode as their machine
language.
Instead, for a computer to run Bytecode, it must have
another program called the Java Virtual Machine
(JVM) that serves as a language interpreter for the
Bytecode
24. A Java Compiler Produces Bytecode that Can Be Run on Any
Machine with the JVM
25. Direct execution of code differs significantly from
interpretation of code.
A computer can directly execute a program that is
compiled into machine language.
Direct execution
◦ The process by which a computer performs the
actions specified in a machine language program.
Interpretation
◦ The translation, while a program is running, of
nonmachine language instructions (such as Bytecode)
into executable operations.
26. When a program is used to make one computer act
like another computer, we call it a virtual machine.
Virtual machine
◦ A program that makes one computer act like
another
27. The instructions in a programming language reflect
the operations a computer can perform:
◦ A computer can transfer data from one place to
another.
◦ A computer can input data from an input device (a
keyboard or mouse, for example) and output data to
an output device (a screen, for example).
◦ A computer can store data into and retrieve data
from its memory and secondary storage (parts of a
computer that we discuss in the next section).
28. The instructions in a programming language reflect
the operations a computer can perform:
◦ A computer can compare data values for equality or
inequality and make decisions based on the result.
◦ A computer can perform arithmetic operations
(addition and subtraction, for example) very
quickly.
◦ A computer can branch to a different section of the
instructions.
29. A programming language contains instructions, called
declarations, which we use to specify the data and
operations in classes.
Programming languages require that we use certain
control structures to organize the instructions that
specify the behaviors of objects.
Instructions that describe behavior can be organized
in four ways in most programming languages:
sequentially, conditionally, repetitively, and with
subprograms. Java adds a fifth way: asynchronously
30. A sequence is a series of operations that are executed
one after another.
31. Selection, the conditional control structure, executes
different operations depending on certain conditions.
32. The repetitive control structure, the loop, repeats
operations while certain conditions are met.
33. The subprogram allows us to organize our code into
units that correspond to specific object behaviors;
Java calls these units methods.
34. Asynchronous control lets us write code that handles
events, such as the user clicking a button on the
screen with the mouse.
35. Early programming languages focused their attention
on the operations and control structures of
programming. These procedural languages paid little
explicit attention to the relationships between the
operations and the data.
At that time, a typical computer program used only
simple data types such as integers and real numbers,
which have obvious sets of operations defined by
mathematics.
Problem with new data type such as date, time etc.
36. Data type
◦ The specification in a programming language of
how information is represented in the computer as
data and the set of operations that can be applied
to it.
Modern programming languages such as Java
allow us to collect data and its associated
operations into objects. For this reason, they
are called object-oriented programming
languages.
37. Advantage of an object:
◦ It makes the relationships between the data and
operations explicit.
◦ Each object is a complete, self-contained unit
that can be reused again in other applications.
◦ Reusability enables us to write a
significant portion of our code using
existing objects, thereby saving a
considerable amount of time and effort.
38. A class is a description of an object. When we need
an object in an application, we must create one from
such a description. Java provides an operation to let
us do so, and we say that the operation instantiates
the class.
Instantiate
◦ To create an object based on the description
supplied by a class.
39. One characteristic of an object-oriented programming
language is the presence of a large library of classes.
Within the library, classes are usually collected into
groups called packages.
Package
◦ A collection of related classes
40. We solve problems everyday
learning environment, we usually are given most of
the information we need: a clear statement of the
problem, the necessary input, and the required output.
In the problem-solving phase of computer
programming, we actually design algorithms. This
means we must be conscious of the strategies we use
to solve problems so that we can apply them to
programming problems effectively.
41. Ask Questions
Look for Things That Are Familiar
Solve by Analogy
Means-Ends Analysis
Divide and Conquer
The Building-Block Approach
Merging Solutions