#8085 microprocessor

[andmaybegayer]

Hunting down some stories about the early Intel fabs as a follow up to the cool chips post, found this little historical paper

Quite a few parts, ranging from the 1850-transistor 5810 watch chip, up to at least the 6144-transistor 8085 microprocessor, used no logic verification technique other than the engineer's brain. Andrew spent weeks in 1976 playing “computer” by running through all the 8085 instructions.

Customers were skeptical of the reliability of the early EPROMs and were afraid that sunlight would erase them. To test the technology, 1702s were left on the roof of an Intel building in full sunlight for many days with no data loss.

Missing a cut or forgetting to peel a geometry would mean a bad part. Ted Jenkins remembers working on the first Intel product, the 3101 64-bit RAM. Actually, the first version was only a 63-bit RAM due to a simple error peeling one layer on the rubylith.

[yagobadstar]

Come hanno fatto gli ingegneri a programmare il software o un sistema operativo prima che esistesse una tastiera?

Non avevano la tastiera ma avevano accesso diretto alla memoria, che è pure meglio. Programmavano in linguaggio macchina inserendo un byte dopo l'altro, tramite interruttori e pulsanti. La stessa soluzione dell'Altair 8800, il nonno dei microcomputer anni '80.

Quindi, a rigor di termini, non è corretto dire che non avessero tastiere: erano solo un po' diverse dalle nostre.

Le prime tastiere dei mainframe furono delle telescriventi, che si interfacciavano ai computer attraverso nastri perforati, e poi terminali video, come la famosa famiglia VT100 della Digital. Per avere delle "tastiere" nel senso che diciamo noi devi aspettare (ancora) i primi microcomputer su scheda, come l'amico 2000 che avevano una tastiera esadecimale a bordo.

Il "sistema operativo" dell'Amico 2000 era un semplice monitor in linguaggio macchina, cioè un programma che ti dava modo di scrivere i tuoi programmi in linguaggio macchina, eseguirli e farli terminare cristianamente. Qualcosa di simile al DEBUG di MS-DOS, ma più primitivo.

L'evoluzione successiva la conosciamo tutti,

l'Intel 8086 è un microprocessore a 16 bit progettato dalla Intel nel 1978, che diede origine all'architettura x86. È basato sull'8080 e sull'8085 (è compatibile con l'assembly dell'8080), con un insieme di registri simili, ma a 16 bit.

Buon lavoro a tutti!

[yadavkhushboo]

ISRO Scientist Syllabus

The Indian Space Research Organisation (ISRO) is one of the leading space agencies globally and offers a wide range of opportunities for candidates aspiring to work as scientists and engineers. The ISRO Scientist syllabus is designed to assess candidates on their technical knowledge, problem-solving abilities, and aptitude in relevant engineering disciplines. Typically, the ISRO recruitment exam is conducted for various technical positions like Scientist/Engineer in different engineering fields, including Electronics, Mechanical, and Computer Science. Below is a breakdown of the typical syllabus for ISRO Scientist recruitment.

1. General Aptitude:

The General Aptitude section is designed to assess the candidate's logical reasoning, quantitative aptitude, and analytical skills. This section often includes topics like:

Quantitative Aptitude: Number systems, ratios and proportions, profit and loss, time and work, time and distance, simple and compound interest, percentages, average, and permutation-combination.

Logical Reasoning: Blood relations, series, direction sense, coding-decoding, seating arrangements, puzzles, and analogies.

Verbal Ability: Vocabulary, reading comprehension, sentence correction, and grammar.

This section tests the candidate's ability to think logically and solve problems efficiently within a short span of time.

2. Core Subject Knowledge:

The core subject knowledge tests are designed according to the specific engineering discipline of the candidate. For example:

Electronics Engineering (EC):

Circuit Theory: Network theorems, AC and DC circuits, transient analysis, resonance, and filters.

Digital Electronics: Logic gates, combinational and sequential circuits, flip-flops, counters, and registers.

Microprocessors and Microcontrollers: 8085/8086 microprocessors, interfacing, and assembly language programming.

Control Systems: Stability analysis, Bode plot, Nyquist plot, transfer functions, and feedback control systems.

Signals and Systems: Fourier series, Laplace transform, and Z-transform.

Communication Systems: Analog and digital communication, modulation techniques, and transmission systems.

Mechanical Engineering (ME):

Engineering Mechanics: Laws of motion, friction, dynamics, kinematics, and work-energy principles.

Thermodynamics: Laws of thermodynamics, entropy, heat engines, and refrigeration cycles.

Strength of Materials: Stress, strain, shear force, bending moment, and material properties.

Fluid Mechanics: Fluid statics, fluid dynamics, Bernoulli’s equation, and flow measurement.

Manufacturing Processes: Casting, welding, forming processes, and machining operations.

Computer Science Engineering (CS):

Data Structures and Algorithms: Arrays, linked lists, stacks, queues, trees, graphs, sorting, and searching algorithms.

Operating Systems: Process management, memory management, file systems, and system calls.

Databases: Relational databases, SQL, normalization, and transaction management.

Computer Networks: OSI model, TCP/IP, routing, and protocols.

Software Engineering: Software development lifecycle, methodologies, and design principles.

These core subjects assess the candidate's depth of understanding of the concepts and their application in real-world scenarios.

3. Technical Aptitude:

Technical aptitude involves the ability to apply theoretical concepts to solve practical engineering problems. This section may include topics such as:

Electromagnetics: Electric fields, magnetic fields, Maxwell's equations, and wave propagation.

Linear Algebra: Matrices, eigenvalues, eigenvectors, and systems of linear equations.

Material Science: Properties of materials, alloys, composites, and failure analysis.

Instrumentation: Sensors, actuators, and measurement techniques.

4. Exam Pattern:

The ISRO Scientist exam typically consists of multiple-choice questions (MCQs) with four options, and candidates must select the correct answer. The exam duration is usually two to three hours, and the total marks vary depending on the specific exam.

5. Preparation Strategy:

Know the Syllabus: Candidates must understand the syllabus thoroughly and focus on topics with high weightage.

Study Materials: Referring to standard textbooks, previous years' question papers, and mock tests will enhance the preparation process.

Time Management: Efficient time management is crucial while preparing and attempting the exam to ensure each section is covered adequately.

In conclusion, preparing for the ISRO Scientist exam requires a comprehensive understanding of core engineering subjects, aptitude, and problem-solving skills. Candidates need to stay focused, practice regularly, and follow a structured study plan to succeed in this competitive exam.

[aktuhub]

Comprehensive AKTU B.Tech IT Syllabus for All Years

The AKTU B.Tech 1st year syllabus lays the foundational framework for engineering students, covering essential concepts across core subjects, practical labs, and professional skills. The first year is divided into two semesters, focusing on mathematics, science fundamentals, engineering basics, and programming skills, vital for higher technical studies.

First Year B.Tech IT Syllabus

Semester 1

Core Subjects

Mathematics-I Introduces calculus, linear algebra, and differential equations for engineering problem-solving and applications.

Physics-I Covers mechanics, wave motion, and thermodynamics, tailored for engineering contexts.

Introduction to Programming (C Language) Focuses on programming fundamentals, data structures, algorithms, and hands-on coding practice.

Electrical Engineering Basics Provides a foundation in circuit theory, electrical machines, and power systems.

Professional Communication Enhances communication, writing, and presentation skills essential for professional growth.

Practical Labs

Physics Lab

Electrical Engineering Lab

Programming Lab (C Language)

Semester 2

Core Subjects

Mathematics-II Delves into advanced calculus, vector calculus, and linear transformations.

Chemistry Covers physical, inorganic, and organic chemistry, with emphasis on engineering materials.

Engineering Mechanics Introduces statics, dynamics, and mechanics of rigid bodies.

Computer System & Programming Explores computer architecture, assembly language, and structured programming.

Basic Electronics Engineering Focuses on electronic devices, circuits, and fundamental applications.

Practical Labs

Chemistry Lab

Basic Electronics Lab

Computer Programming Lab

Second Year B.Tech IT Syllabus

Semester 3

Core Subjects

Data Structures Using C Covers arrays, stacks, queues, linked lists, and trees for efficient data manipulation.

Discrete Mathematics Explores set theory, combinatorics, graph theory, and logic, forming a mathematical backbone for computing.

Digital Logic Design Introduces binary arithmetic, logic gates, combinational and sequential circuits.

Database Management Systems (DBMS) Focuses on relational databases, SQL, and the fundamentals of database design.

Computer Organization and Architecture Delves into CPU structure, memory hierarchy, and I/O systems.

Practical Labs

Data Structures Lab

Digital Logic Design Lab

DBMS Lab

Semester 4

Core Subjects

Operating Systems Covers process scheduling, memory management, file systems, and more.

Software Engineering Introduces software development life cycle, methodologies, and quality management practices.

Object-Oriented Programming (OOP) Using Java Covers OOP principles using Java, focusing on classes, inheritance, and polymorphism.

Theory of Automata & Formal Languages Studies automata theory, regular expressions, and context-free grammars.

Design and Analysis of Algorithms Focuses on algorithmic strategies, complexity analysis, and optimization techniques.

Practical Labs

Operating Systems Lab

Java Programming Lab

Algorithms Lab

Third Year B.Tech IT Syllabus

Semester 5

Core Subjects

Computer Networks Covers networking layers, TCP/IP, routing algorithms, and data communication.

Compiler Design Explores lexical analysis, syntax analysis, semantic analysis, and optimization techniques.

Web Technologies Introduces front-end and back-end web development using HTML, CSS, JavaScript, and server-side scripting.

Microprocessors and Interfacing Covers 8085/8086 microprocessors, interfacing, and assembly language programming.

Elective I Allows students to specialize in a subject area based on their interest.

Practical Labs

Computer Networks Lab

Microprocessor Lab

Web Technologies Lab

Semester 6

Core Subjects

Artificial Intelligence Covers foundational AI techniques, knowledge representation, and learning algorithms.

Distributed Systems Focuses on distributed computing models, coordination, and replication.

Mobile Computing Emphasizes mobile app development, wireless communication, and mobility management.

Advanced Database Systems Covers NoSQL databases, data warehousing, and database security measures.

Elective II Provides an additional specialization option.

Practical Labs

AI Lab

Mobile Application Lab

Distributed Systems Lab

Final Year B.Tech IT Syllabus

Semester 7

Core Subjects

Machine Learning Focuses on supervised, unsupervised learning algorithms, and evaluation models.

Cloud Computing Introduces cloud service models, deployment, and cloud security.

Information Security Covers cryptographic methods, network security, and security threats.

Elective III Tailored to specific industry-oriented needs and interests.

Practical Labs

Machine Learning Lab

Cloud Computing Lab

Major Project Phase I

Semester 8

Core Subjects

Big Data Analytics Explores data mining, the Hadoop ecosystem, and advanced analytics.

Entrepreneurship Development Prepares students with business planning, innovation, and management skills.

Major Project The culmination of academic knowledge in a comprehensive project.

This structured curriculum equips students with in-depth IT skills and knowledge, preparing them for a thriving career in technology and innovation.

[electricalstudent]

The following program is run on  8085  microprocessor :

The following program is run on 8085 microprocessor :  Memory Address in hex  Instruction 2000 LXI SP, 1000 2003 PUSH H 2004 PUSH D 2005 CALL 2050 2008 POP H 2009 HLT  At the completion of execution of the program, the program Counter of the 8085 contains _________ and the Stack Pointeer contains ___________.

[rahul-tech]

Intel 8085 Architecture: A Comprehensive Guide

In the ever-evolving tapestry of computing, the Intel 8085 microprocessor stands as a landmark achievement, a pivotal piece that laid the foundation for the modern microprocessors that power our lives. Understanding the Intel 8085 architecture reveals how this seemingly simple 8-bit processor, introduced by Intel in 1976, not only revolutionized computing but also ushered in a new era of…

[awaredotin]

Intel 8086: A 16-bit Microprocessor

#NeedToKnow: intel8086

The intel 8086 is a 16-bit microprocessor introduced by intel in 1978. It marked a significant advancements over the earlier 8-bit processor like the 8085. key features and aspects of intel 8086 01. 16-Bit Architecture: The 8086 is a 16- bit processor with a 16-bit data bus and a 20-bit address bus, allowing it to address up to 1MB of memory. 02. Register: It includes a set of 16-bit…

[trading435]

Microprocessors and Microcontrollers: Key Components of ESE Electronics Syllabus

In the Electronics and Communication Engineering (ECE) syllabus for the Engineering Services Examination (ESE) in India, microprocessors and microcontrollers are important topics that are covered. These topics are fundamental to understanding digital electronics and embedded systems. Here are some key components related to microprocessors and microcontrollers in the ese electronics syllabus:

Introduction to Microprocessors and Microcontrollers:

Overview of microprocessors and microcontrollers.

Basic architecture and functionalities of microprocessors and microcontrollers.

Microprocessor Architecture:

Explanation of the architecture of popular microprocessors, such as Intel 8085, 8086, or similar architectures.

Detailed study of various components, including registers, ALU (Arithmetic Logic Unit), control unit, memory, and buses.

Microcontroller Architecture:

Understanding the architecture of microcontrollers like the 8051 microcontroller.

Key components like CPU, RAM, ROM, I/O ports, timers/counters, and interrupt system.

Assembly Language Programming:

Writing assembly language programs for microprocessors and microcontrollers.

Understanding instruction sets, addressing modes, and programming concepts.

Memory Interface:

Study of memory interfacing techniques for microprocessors and microcontrollers.

Concepts like memory organization, memory mapping, and interfacing with ROM and RAM.

I/O Interface:

Basics of input and output interfacing with microprocessors and microcontrollers.

Various techniques for interfacing with devices such as LEDs, displays, keyboards, and sensors.

Serial and Parallel Communication:

Serial communication protocols like UART, USART.

Parallel communication techniques for data transfer.

Interrupts and Timers:

Understanding interrupt handling and timer/counters in microcontrollers.

Their significance in real-time systems.

Peripherals and Applications:

Applications of microcontrollers in embedded systems, automation, and control systems.

Interfacing with various peripherals and sensors.

Embedded C Programming:

Writing C programs for microcontrollers.

Embedded C concepts and development tools.

Microcontroller Interfacing and Projects:

Practical application of microcontroller knowledge through projects and hands-on experience.

Developing and implementing microcontroller-based systems.

Recent Advancements:

Awareness of recent developments in the field of microprocessors and microcontrollers.

Emerging technologies and trends.

It's important to note that the specific content and depth of coverage for microprocessors and microcontrollers may vary from one ESE exam to another, so candidates should refer to the official ESE syllabus provided by the conducting authority for the most accurate and up-to-date information. Studying these topics is essential for candidates looking to excel in the ESE examination, especially if they aim for jobs in fields related to electronics, communication, and embedded systems.

[science70]

Christopher A. Titus, David G. Larsen and Jonathan A. Titus, 8080/8085 Software Design, Book 2 (Howard W. Sams & Co., 1979).

[mayank84ya]

(via Microprocessor interview questions | Courseya)

[electricaltechnology]

Added to the blog. #8086 #8085 #microprocessor https://www.instagram.com/p/CAVhkCGDc-b/?igshid=7h4548xywedy

[kamlacrypto]

Instructions के ग्रुप को instruction set कहते हैं. यह instructions माइक्रोप्रोसेसर-8085 के लिए ही बनाई गई हैं. इन instructions का प्रयोग करके प्रोग्रामर Assembly language में प्रोग्राम लिखता है. https://hindipradesh.com/instruction-set-of-8085-microprocessor-in-hindi/

[paneerlajwanti]

why is it 8085 microprocessor. make it 80085.

[awaredotin]

Intel 8085: Microprocessor-Based Systems

#NeedToKnow: intel 8085

“Technology Motherboard” by Lenharth Systems/ CC0 1.0 The intel 8085 is an 8-bit microprocessor introduced by intel in 1976. It is part of the MCS-85 family and was widely used in early microprocessor-based systems. key features and aspects of intel 8085 01. Architecture: The 8085 follows a von Neumann Architecture, with a single set of address and data buses. It has a 16-bit address bus,…

[coursesforallacademynoida]

B.Tech Back Paper Tuition In Noida For Microprocessor B.Tech Back Paper Tuition In Noida For Microprocessor Introduction to Microprocessor Tuition In Noida Introduction to Microprocessor and its applications, Microprocessor Evolution Tree, Microprocessor…