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b.sc computer science honours syllabus under
b.sc computer science honours syllabus under

... Architectural Support for High-Level Languages: Abstraction in software design, data types, floating-point data types, The ARM floating point architecture, expressions, conditional statements, loops, functions and procedures, use of memory, run-time environment, examples and exercises. UNIT-V Thumb ...
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6c.Agile Processes
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... • Distinguishing between the decisions to be made by business interests and those to be made by project stakeholders. • Writing unit tests before programming and keeping all of the tests running at all times. • Integrating and testing the whole system--several times a day. • Producing all software i ...
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first generation of programming languages
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Chap 7 - UTRGV Faculty Web
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... A program needs to carry out more than one task at the same time, such as in the case of a web browser downloading a picture while displaying rest of the page. Using more than one thread within a program is called multithreading. Java makes multithreading available to the programmer. The purpose of ...
Lecture 1 - Thurs., 1/25/07
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lect05 - Duke University

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... statements for a program. • These statements are known as source code. • A text editor is used to edit and save a Java source code file. • Source code files have a .java file extension. • A compiler is a program that translates source code into an executable form. ...
lect07 - Duke University
lect07 - Duke University

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CS 331, Principles of Programming Languages

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D16 Functional Programming

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Abstraction (computer science)

In computer science, abstraction is a technique for managing complexity of computer systems. It works by establishing a level of complexity on which a person interacts with the system, suppressing the more complex details below the current level. The programmer works with an idealized interface (usually well defined) and can add additional levels of functionality that would otherwise be too complex to handle. For example, a programmer writing code that involves numerical operations may not be interested in the way numbers are represented in the underlying hardware (e.g. whether they're 16 bit or 32 bit integers), and where those details have been suppressed it can be said that they were abstracted away, leaving simply numbers with which the programmer can work.In addition, a task of sending an email message across continents would be extremely complex if you start with a piece of optic cable and basic hardware components. By using layers of complexity that have been created to abstract away the physical cables, network layout and presenting the programmer with a virtual data channel, this task is manageable.Abstraction can apply to control or to data: Control abstraction is the abstraction of actions while data abstraction is that of data structures. Control abstraction involves the use of subprograms and related concepts control flows Data abstraction allows handling data bits in meaningful ways. For example, it is the basic motivation behind datatype.One can view the notion of an object as a way to combine abstractions of data and code.The same abstract definition can be used as a common interface for a family of objects with different implementations and behaviors but which share the same meaning. The inheritance mechanism in object-oriented programming can be used to define an abstract class as the common interface.The recommendation that programmers use abstractions whenever suitable in order to avoid duplication (usually of code) is known as the abstraction principle. The requirement that a programming language provide suitable abstractions is also called the abstraction principle.
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