analysis and history of unix and windows,

1. ANALYSIS OF UNIX AND
WINDOWS
“UNIX”
• It is the dominant operating system on high-end workstation
and server.
• It is used on system ranging from notebook computer to
supercomputer.
• Many important design principles are illustrated by unix.

2. 1.HISTORY OF UNIX
• Bell Labs researcher , Ken Thompson decided to write a stripped
down MULTICS by himself on discarded PDP-7 minicomputer.
• Other researcher Brian Kernighan jokingly called it UNICS,then it later
change into UNIX.
• Thompson write UNIX in high level language of his own design called
B.
• Due to weakness in B ,Ritchie design a successor B.
• Thompson and Ritchie wrote UNIX in C.
• The first portable version of UNIX 6 is replaced by version 7

3. • Steve Johnson of Bell labs designed and implemented the portable C
compiler.
• POSIX is developed .POS refer to portable operating system & IX was
added to make name UNIXish.
• POSIX commitiee produced a standerd known as 1003.1.
• Large number of additional features such as windows
system(XII),graphical user interace
• MINIX was of the first UNIX like system based on microkernel design.
• Microkernel is provide minimal functionality in kernel to make it
reliable and efficient.

4. “WINDOWS”
• The PC came equipped with a 10-bit real mode, single user , command line
oriented oper ating system called MS-DOS 1.0.
• In1983, much powerful24 KB operating system MS-DOS 2.0 relased.
• Over year MS-DOS continued to aquire new features 36 KB Microsoft MS-
DOS 3.0 comes on PC.
• Microsoft decided to give MS-DOS a graphical user interface that is called
WINDOWS.
• In 1985 WINDOWS 1.0 is released.
• In 1987 WINDOWS 2.0 is released but not much better ,finally WINDOWS
3.0 for 386 is released in1990.
• In 1995 releasing the WINDOWS 95.
• In 1998 in june with the release of WINDOWS 98 running 16-bit code.

5. • Second case windows 98 process had four GB virtual address space
• New features included better way to catalog and share image music
movies, for home networking and multiuser games.
• To produce brand new 32 windows compatible OS. This new system
called windows nt.
• Project succeeded and first version called windows NT3.1 in 1993.
• NT was designed to be protable.
• NT 4.0 was originally going to be called NT5.0 in 1999.
• Microsoft changed the to windows 2000.
• Exrta features plug and play device the USB bus and power
management.

6. • The system is installed the product key is recorded in an internal
database .
• Microsoft windows 2000 has also developed server tool kit for
advanced user.

7. CONCLUSION
• Unix is free but windows is not
• Open source development but windows is developed by Microsoft
• Unix can be installed in wide variety of computer
• Unix is more secure
• Problem is solved fast