HADIA NAYYER
MS(CS&IT)- EVENING
Roll No # CT-013
ASSIGNMENT # 1
ADVANCED OPERATING SYSTEM
a) Write down the reasons due to which advanced operating systems are required.
Give few examples.
Advanced operating systems are required because traditional multitasking operating
systems are mostly used at the user end or work on particular workstation.
Conventional operating systems are unable to provide high-speed computing so In
Advanced operating systems; Multiprocessor systems and distributed systems have
been adopted for performance reasons.
The Advanced operating system is categorized on the following basis:
• Hardware Architecture Driven
▪ Distributed Operating Systems
▪ Multiprocessor Operating Systems
• Application Driven
▪ Database Operating Systems
▪ Real-Time Operating Systems
Hardware Architecture Driven
Distributed Operating System
A collection of autonomous computers
▪ Linked by a network
▪ Using software to produce an integrated computing facility
Distributed Operating System design issues same as traditional systems.
Distributed Operating System practical issues are
▪ Lack of shared memory
▪ Lack of global clock
▪ Unpredictable communication delays
