Computer
Evolution
COMPUTER NETWORK
INTRODUCTION TO COMPUTER
NETWORKS
,Computer
Evolution
First Generation : Vacuum Tube
ENIAC (Electronic Numerical Integrator And Computer)
Solving mathematical equations
Weighs 30 tons, volume 15,000 square feet, uses 140 KW of
power and 18,000 vacuum tubes
Second Generation: Transistor
Transistor replace vacuum tube,Smaller,cheaper,better work
Use of more complex arithmetic and logic, advanced
programming languages and system software with computers
Third Generation: Integrated Circuits
A collection of transistors, resistors, capacitors, etc. Forming a
chip (chips) Each chip forms a gate input and output points
Next Generation : Microprocessor
In 1971, Intel succeeded in making the 4004 system, the
forerunner of processors
Integrated all CPU components.
Evolution increases the number of processor bits at any given moment.
The smaller the size, the larger the data bus width, the higher
the speed
,Computer
Evolution
Pentium
8080 ; 8-bit machine, with 8-bit data path to 8086
memory; much more reliable, 16 bit, has an instruction
cache, 80286 ; memory addressing up to 16 MB
80386 ; The first 32 bits, rivals the 80486
mainframe; much better than 386
PII
PIII
P4
Make computers cheaper and can be used for various purposes
Offices are becoming increasingly dependent on computers
, Network
Evolution
More and more computers Problems
arise when we need them
shared data, shared printers, etc. :
Data must be brought to the place where it is needed.
Copy must be taken to a place where there is a printer
Need a solution
for:Duplicate resources
Communicate efficiently
The solution is to connect the computers.
Expected to happen:
Ease of
Mobility
No distance
Efficiency
Evolution
COMPUTER NETWORK
INTRODUCTION TO COMPUTER
NETWORKS
,Computer
Evolution
First Generation : Vacuum Tube
ENIAC (Electronic Numerical Integrator And Computer)
Solving mathematical equations
Weighs 30 tons, volume 15,000 square feet, uses 140 KW of
power and 18,000 vacuum tubes
Second Generation: Transistor
Transistor replace vacuum tube,Smaller,cheaper,better work
Use of more complex arithmetic and logic, advanced
programming languages and system software with computers
Third Generation: Integrated Circuits
A collection of transistors, resistors, capacitors, etc. Forming a
chip (chips) Each chip forms a gate input and output points
Next Generation : Microprocessor
In 1971, Intel succeeded in making the 4004 system, the
forerunner of processors
Integrated all CPU components.
Evolution increases the number of processor bits at any given moment.
The smaller the size, the larger the data bus width, the higher
the speed
,Computer
Evolution
Pentium
8080 ; 8-bit machine, with 8-bit data path to 8086
memory; much more reliable, 16 bit, has an instruction
cache, 80286 ; memory addressing up to 16 MB
80386 ; The first 32 bits, rivals the 80486
mainframe; much better than 386
PII
PIII
P4
Make computers cheaper and can be used for various purposes
Offices are becoming increasingly dependent on computers
, Network
Evolution
More and more computers Problems
arise when we need them
shared data, shared printers, etc. :
Data must be brought to the place where it is needed.
Copy must be taken to a place where there is a printer
Need a solution
for:Duplicate resources
Communicate efficiently
The solution is to connect the computers.
Expected to happen:
Ease of
Mobility
No distance
Efficiency
