Transcript Learning About Operating Systems

Learning
About Operating
Systems
What are the different types of
operating system?
• Single-tasking
– An operating system that only allows one process (task) to be running at
a time
– Some examples are DOS and Windows 3.x
• Multitasking
– The ability of a computer operating system to effectively support more
than one process running at a time
– Examples are Windows and Mac OS
– Most operating systems today are multitasking
What are the different types of
operating system? (continued)
• Network operating system
– An operating system designed to provide strong network services
– The capabilities to configure and manage networks of computers
– Some examples are NetWare, UNIX, Windows 2000 Server, and
Windows Server 2003
• Multiprocessing
– The coordinated processing of a process by more than one processor at
the same time
– UNIX is also a good example of multiprocessing
Related terms
User Interface- a program that controls a display for the user (usually on a
computer monitor) and that allows the user to interact with the system.
Deadlock- when each program is waiting for a resource to become available
that will never become free.
Command Language- a source language consisting of procedural operators
that invoke functions to be executed
Compute bound- refers to a condition where the time to complete a
computation is determined principally by the speed of the central processor
and main memory
Parallel Processing- The simultaneous processing of different tasks by two or
more microprocessors, as by a single computer with more than one central
processing unit or by multiple computers connected together in a network.
Sources so far:
• Invitation to Computer Science Third Edition
•
•
– By: G. Michael Schneider and Judith L.
Gersking
Connecting with Computer Science
– By: Greg Anderson, David Ferro, and Robert
Hilton
Dictionary.com