operating systems

1. WEB QUEST #1
Cristina Aguilera #1
Ma.Fernanda Oroxom #14
Ana Fernanda Ramirez #16
Marta Romero #17

2.  An Operating System provides an environment for the execution of
programs . It provides certain services to programs and to the users of those
programs . Some of the services are been discussed below.
 Operating systems (OSes) provide a set of functions needed and used by
most application programs on a computer, and the linkages needed to
control and synchronize computer hardware.
 On the first computers, with no operating system, every program needed
the full hardware specification to run correctly and perform standard tasks,
and its own drivers for peripheral devices like printers and punched paper
card readers.
 The growing complexity of hardware and application programs eventually
made operating systems a necessity.
 1940.Computers of this time were so primitive compared to those of today
that programs were often entered into the computer one bit at a time on
rows of mechanical switches.
 Very quickly, the input/output coding needed to implement basic functions
was consolidated
 into an input/output control system (IOCS).

3.  Operating system is the most important software on a computer. It
manages the computer´s memory, processes and all of its software
and hardware. It allows you to communicate with the computer
without knowing the “language” of it.

4. Parts of an Operating
Systems

5. Parts of an O.S.
 UNIX and 'UNIX-like' operating systems (such
as Linux) consist of a kernel and some system
programs. There are also some application
programs for doing work. The kernel is the
heart of the operating system. In fact, it is
often mistakenly considered to be the
operating system itself, but it is not. An
operating system provides provides many
more services than a plain kernel.

6. Examples of O.S.
 Some common operating systems are:
 Linux
 Mac OS X
 Windows
 Solaris
 BSD
 AmigaOS
 Android
 iOS

7. Functions of an operating
system
 It manages the computer's memory, and all
the software and hardware of the computer.
It also helps you to communicate with the
computer. Something important is that
without an O. S., the computer is useless.
 It make sure everything is working right.
 It checks for a new hardware.

8. Types of operating systems
 Multi-user and Single-user Operating Systems:
This type of OS allows to access a computer
system. It can be classified as multi-user and
single-user.
 Mobile Operating Systems:
It controls the mobile device, its design
support the mobile applications, and built the
multimedia formats.

9. More…
 Multi-threading Operating System:
They are made to permit parts of software
programs to run at the same time.
 Multiprocessing operating system:
Its created to work with many computers
processors at the same time.

10. Software for an Operating
System
 It is the most important software of the
computer. It administrates the computer`s
memory, process, and all the software and
hardware of it. The computer is useless
without an operating system . 

11. Examples of Softwares for OS
Some of operating systems are:
 Mac OS 9
 Android OS
 Debian GNU/Linux
 eComStation
 Haiku
 Windows 7

12. Video!
 The video is about the Operating
Systems of each computer.
 It says that every Operating System
changes through the time.
 It talks about that every Operating
System has disadvantages and
advantages.

13. links
 http://www.digitaldesk.org/materials/docum
ents/secondary/gcse_it/types_of_OS.pdf
 http://www.buzzle.com/articles/different-
types-of-operating-systems.html
 http://www.openpackages.org/5-types-of-
operating-systems-for-computers.php
 http://www.wix.com/celesteskity/technologys
econdary
 http://www.youtube.com/watch?v=4C1oOJr2
0iU

14. Thanks…