what is a characterist of high level languages
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What Does High-Level Language (HLL) Mean?
A high-level language is any programming language that enables development of a program in a much more user-friendly programming context and is generally independent of the computer’s hardware architecture.
A high-level language has a higher level of abstraction from the computer, and focuses more on the programming logic rather than the underlying hardware components such as memory addressing and register utilization.
Techopedia Explains High-Level Language (HLL)
High-level languages are designed to be used by the human operator or the programmer. They are referred to as “closer to humans.” In other words, their programming style and context is easier to learn and implement than low-level languages, and the entire code generally focuses on the specific program to be created.
A high-level language does not require addressing hardware constraints when developing a program. However, every single program written in a high-level language must be interpreted into machine language before being executed by the computer.
BASIC, C/C++ and Java are popular examples of high-level languages.
advantages of High level languages
High level languages have several advantages over Low Level Programming Languages.
- Easy to learn
- Easy to detect errors
- Machine Independent
- Availability of Liberty Functions
- Shorter Program
- Well defined Syntax and standard
High level language is highly specialized to the production of a certain type of program for a specific machine. Low level language offers a great deal of control over what the program will do and how it will do it, however requires much more specific commands and coding to get the job done properly.
The high level language are closer to human language the instruction written in this language are similar to English like words and statements
2. It is easy to understand
3. It is easy to modify
4. User friendly
5. Standarized syntax
6. Deep hardware knowledge is not required for using this.
7. Machine indipence
8. In this language the error are easily located.
9. The program written in this language are called source code.
10. The program written in this language are shorter in size than low level language.
Most common programming languages are considered high-level languages. Examples include:
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Each of these languages use different syntax. Some are designed for writing desktop software programs, while others are best-suited for web development. But they all are considered high-level since they must be processed by a compiler or interpreter before the code is executed.
Source code written in languages like C++ and C# must be compiled into machine code in order to run. The compilation process converts the human-readble syntax of the high-level language into low-level code for a specific processor. Source code written in scripting languages like Perl and PHP can be run through an interpreter, which converts the high-level code into a low-level language on-the-fly.
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Definitions of High level languages
The definition of High-Level Language on this page is an original TechTerms.com definition. If you would like to reference this page or cite this definition, you can use the green citation links above.
The goal of TechTerms.com is to explain computer terminology in a way that is easy to understand. We strive for simplicity and accuracy with every definition we publish. If you have feedback about the High-Level Language definition or would like to suggest a new technical term.
HIGH-LEVEL VS. LOW-LEVEL LANGUAGES
Low-level languages require little interpretation by the computer. This makes machine code fast compared to other programming languages. Low-level languages gives programmers more control over data storage, memory, and computer hardware. It’s typically used to write kernel or driver software. It wouldn’t be used to write web applications or games.
In contrast, high-level languages are easier to grasp. It allows a programmer to write code more efficiently. High-level languages have more safeguards to keep coders from issues commands that could potentially damage a computer. These languages don’t give programmers as much control as low-level ones do.
Here are some main differences between high and low-level languages:
| High Level Language | Low Level Language | |
|---|---|---|
| Programmer friendly | Machine friendly | |
| Less memory efficient | Highly memory efficient | |
| Easy to understand for programmers | Tough to understand for programmers | |
| Simple to debug | Complex to debug comparatively | |
| Simple to maintain | Complex to maintain comparatively | |
| Portable | Non-portable | |
| Can run on any platform | Machine-dependent | |
| Needs compiler or interpreter for translation | Needs assembler for translation | |
| Widely used for programming | Not commonly used in programming |
Top Most Popular Programming Languages
#1) Java
Java continues to rock the top position in the charts of “Programming Languages”. Recently Java has completed its 22nd year since its advent in 1995 by James Gosling and the recent being Java11 on September 25, 2018.
The long run has been made possible by its features of platform independence, scalability, security, etc. Java derives its features of object-orientation, Variables, Data types of C/C++, and in fact, the syntax that is influenced by C++.
Java’s popularity is mainly due to its platform-independence feature which makes it run on different types of computers, either its Macintosh or Windows or Unix or Linux or even Mainframe/mobile phones as long as it has JVM installed in it.
Java code that has been written 15 years back can be made to run even on the latest JVM. One more notable feature is that it is fundamentally object-oriented and this makes Java robust as Java objects contain no references to external data.
With speed, native code translating, and memory management features, it continues to stay on top of the list with its newly ad-vented features.
The Class Library and Java API, which are a part of the Java Language, are the main learning of the Language. Even though Java consists of 50 Keywords, Java API has thousands of classes with tens of thousands of methods used in Programs.
Java is the learning language that is worth learning and it is the most preferred language to be learned by the developers.
Building server-based applications, web applications, Android apps, Scientific applications, connecting to a Database, Internet of Things, Cloud development, etc., are few to-do lists of things that you could do after learning this excellent language.
Open JDK, which is a free, open-source implementation, makes it platform-independent across OS Environments.
Java is most commonly used in our daily life i.e. in most popular websites like Google, YouTube, LinkedIn, Amazon, eBay. Few other well-known/booming technologies like Android, Kotlin, etc., are dependent on Java.
#2) Python
Python is an interpreted high-level programming language for general programming purposes. It was released in 1991.
Python has been designed to give importance to code readability and significantly using whitespaces. Dynamic type, automatic memory management, supporting multiple programming paradigms (PO, Functional, procedural), a large comprehensive library of its own, etc., are its notable features.
Python interpreters are available for many operating systems and it is open-source software. As of January 2018, it is the fourth most popular language (after Java, c, c++). A recent study analyzed that such scripting languages are more productive than conventional languages.
Python can be embedded in many software products, used in several Artificial Intelligence projects & the Information security industry, and can also serve as a scripting language for web applications.
Large organizations that use python include Wikipedia, Google, Yahoo, etc. Libre office includes python and intends to replace Java with python. Go, Kotlin, Swift, etc, have derived some of their features from python.
With the growing trend of the Hadoop ecosystem that is dependent on Python, Java, and Scala, Python provides an efficient competition to Java (as the world of analytics does not have many Java programmers)
#3) Swift
Swift is a general-purpose, multi-paradigm, compiled programming that was developed by Apple Inc. for iOS, macOS, and for working with Cocoa frameworks. It uses the Objective C runtime library which allows C, C++ to run within one program.
Swift has entered as” Objective C without C”. The features of readability, maintenance, safer platform, less code, less legacy, speed, supporting dynamic libraries, interactive coding, open-source, etc., make it an efficient choice for developing mobile projects.
#4) Kotlin
Kotlin is a statically typed programming language that runs on JVM and can also be compiled to JS Source. It is fully supported by Google for the Android OS.
One of the prominent goals of Kotlin is to compile as quickly as Java. Sharing code between JVM and JavaScript platforms was the main feature of the recent release of Kotlin.
Kotlin is designed to be an OO language, that is fully interoperable with Java code. It also supports procedural programming with the use of its functions. Null pointer safety, extension functions, infix notation, full Java compatibility, and Good IDE support are some of the features that speed up the development process.
Kotlin library helps to build android UI applications. It has an interactive shell and can be used as an effective scripting language. Kotlin was officially announced as an Android development language by Google. It is the third language that is fully supported for Android in addition to Java and C++.
#5) C
C language is the oldest and most popular programming language. C is a general-purpose, imperative, computer programming language that supports structured programming. It was developed by Dennis Ritchie between 1969 and 1973.
It is designed to be compiled using a compiler, and provides low-level memory access, offers an efficient mapping to machine instructions, and requires minimal run-time support. The portability and capability of using in any embedded system are some of its outstanding features.
A portable assembly language that perfectly fits the operating systems along with a small run-time makes it a Universal Language.
#6) C++
C with Classes, the predecessor of C, C+++ was created by Bjarne Stroustrup in 1979. C++ is a general-purpose programming language. It has imperative, object-oriented, and generic programming features.
Its design highlights include system programming, the flexibility of use, embedded resource-constrained, and performance efficiency with large systems.
C++ is a compiled language, that has its implementation available on many platforms. The other versions of programming languages like Java, C#, D, etc., have been influenced by C++.
C with Classes added features to C compiler, includes classes, derived classes, strong typing, inlining, and default arguments. It was renamed to C++ by adding functions like virtual functions, operator-overloading, references, constants, type-safe, memory-allocation, improved type-checking, and a stand-alone compiler.
Its main components include direct mapping of hardware features and zero-overhead abstractions based on those mappings. Though C++ is considered as a superset of C, it is strictly not true.
#7) JavaScript
JavaScript is a dynamic, weakly typed, Prototype-based, high-level, interpreted programming language. It takes the position of one of the core technologies of the world wide web. It enables the creation of interactive web pages.
Initially, only client-side web browsers were implemented in JavaScript, but it is now embedded in various host software including server-side in web servers and also in run-time environments that make it function on mobile, and desktop applications.
Even though it carries a similarity in its name with Java Language, it is distinct from Java by its dynamic functionality, human-readable code, etc.
The supporting technologies or languages that are related to JavaScript are JSON (Data Interchange Format), jQuery (Client-side HTML Scripting), Angular, and Angular (Web Application Frameworks for developing SPA), React (JS Library), asm.js, etc.
Standardization of web Assembly by W3C made programming Languages such as C, C++, Java as well as JS to author client-side code for the worldwide web. However, JavaScript has now risen to biblical levels and experts say that it’s time to go down…and yes….partially correct too.
As the preferred language for client-side development varies along with the web assembly back ends, JavaScript is at times confusing to use owing to the availability of several web options
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