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Core Java full report

General purpose COMPUTER

Most computers we encounter are specific application ...
p switches, microwave, controller
VCR timer, DirecTV receiver
GPC n are different ...
GPC n built as a solution to a common problem
machine
section of bridge Programming
a useful tool for "the machine"

GPC (Computer) Organization

CPU-CPU
The main location for calculations
I/O-input and output Subsystem
Devices and communication bus for users
interaction, data import/export and
Permanent storage
RAM-random access memory
High speed, volatile, "bloknotnaâ"

High level Languages

Machine and assembly language
It is very difficult to use ...
• Try to compute the integral of order 3 in the Assembly of ...
• How to write a GUI?
So we create high-level languages and
compilers to translate high level
programs in Assembly

Caveats Of Java Path

performance
• Obviously, JAVA will always be slower than
originally coded application
• JUST-in-TIME JVM technology brings most applications
in 30% of the source code
• Recent HotSpot virtual machines are within 5% of C ++
With regard to equipment
• Not all local devices will have the interface
through the JVM to ... Your favorite scanner USB
can simply doesn't work (at least, for now ...)