The document provides an overview of computer hardware and software, particularly focusing on the Java programming language, which is described as a simple, high-level, and platform-independent language. It outlines different types of programming languages (low-level, middle-level, and high-level) and highlights the various editions of Java, including Standard, Enterprise, and Micro editions, each designed for specific applications. Additionally, it mentions the father of Java, James Gosling, and Oracle's acquisition of Sun Microsystems.

2. COMPUTER
HARDWARE SOFTWARE
SYSTEM SOFTWARE APPLICATION SOFTWARE
 KEYBOARD
 MOUSE
 MONITOR
 HARD DISK DRIVE(HDD)
 DVD WRITER
 SMPS(POWER SUPPLY)
etc….
 CENTRAL PROCESSING UNIT(CPU)
 Programs that control the operations
of computer & its devices .
 Program that perform
specific task for users

3. LEVELS

4. JAMES GOSLING
Father Of Java
JAVA
SUN MICROSYSTEM
Publicly released in 1995
ORACLE CORPORATION
$7.4B deal in 2009
HISTORY OF JAVA

5.  What is JAVA ???????
 Java is Simple, High Level, Platform independent, Architecture-Neutral , Secure, Robust,
Multithreaded, Distributed, and Object Oriented programming language.
What is Programming Language ???????
 Meaning of Programming Languages :
 Language :
 Program :
 Programming Language :
It is the medium of communication .
It is a set of instructions for a device to perform some specific task .
Set of grammatical rules or syntax to write a program for
instructing machine to perform specific tasks .

6.  Types of Programming Languages :
1. Low Level Programming Language
 Binary digits(0,1) will be used to write the instructions in Low Level Language .
 Instructions written in binary language or native language will be understood by the machine directly .
 No translator program is required .
2. Middle Level Programming Language
 Assembly codes like ADD, SUB, MUL, DIV, MOV etc. will be used to write the instructions in Middle Level Language .
 Instructions written in assembly language will not be understood by the machine directly .
 Assembler is a program that should be used to convert Assembly language to Machine language .
3. High Level Programming Language
 Human understandable codes like English words will be used to write the instructions in High Level Language .
 Instructions written in High Level Language will not be understood by the machine directly .
 Compiler or Interpreter is a program that should be used to convert High Level Language to Machine language .

7. FEATURES OF JAVA

8. JAVA EDITIONS
 Java Standard Edition (J2SE or Java SE) : Used to develop desktop standalone applications (application
that can run offline) using applet and swing.
 Java Enterprise Edition (J2EE or Java EE) : Used to develop enterprise applications (applications that
run in organisations) using JDBC, Servlets, JSP, Hibernate etc.
 Java Micro Edition (J2ME or Java ME) : Used to develop applications for micro devices like Mobiles, Setup
Box etc.

9. VERSIONS OF JAVA

10. TOP PROGRAMMING LANGUAGES
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12. SYLLABUS

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