As we all Know that Operating Systems have been evolved over the years,we will be looking at the successive generations of computer to see what their operating system look like
0TH Generation
Well in this generation refer to the period of development of computing which predated the commercial production and sale of Computer equipment
Here Individual user was responsible for all machine set up and operation and subsequent clean up and
preparation of the next user
This System was clearly inefficient and dependent
1ST Generation(1951-1956)
The First Generation Computer is composed of Vaccum Tubes . At the same time the development of Programming Languages was moving away from the basic Machine language first to assembly languageand later to procedure oriented languages like FORTRAN.
2ND Generation (1956-1964)
The Second Generation of computer hardware was literally characterised by transistors replacing vaccum tubes. Significant use of random access devices appeared in this generation.
Program processing for the most part was provided by the large centralized computers operated under
mono-programmed batch processing operating system.
3RD Generation (1964-1979)
The third generation officially began in April 1964 when IBM'S announcement of its System/360 family of computers. This era mark with the use of IC(Integrated Circuits) which yeilded significant advantage in both speed and economy
4TH Generation(1979- Present)
The Fourth Generation is Characterized by the apperance of Personal Computers and workstation.
VLSI(Very Large Scale Integration) with its capacity of containing thousands of transistors on a small chip made possible the dvelopment of desktop computers
No comments:
Post a Comment