Alexia Belli | John Maliwat | Eddie Gutierrez | Paul Dono Sophie Spallini | Nick Purdavisch | Foad Vahid | Queerine Prawirasuta

flosssnailsMobile - Wireless

Dec 10, 2013 (3 years and 9 months ago)

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Alexia Belli | John Maliwat | Eddie Gutierrez | Paul Dono

Sophie Spallini | Nick Purdavisch

| Foad Vahid | Queerine Prawirasuta

There are two type of software on a
computer


Application Software


System Software

What does system software do?


Operating Software (OS)


User Interface


Utility Programs

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-

Do All Computers Have an OS?


Notebook


Game Console


Super Computer


Automobile


Cell Phones


Some Appliances

Are all Operating Systems Alike?


Embedded


Proprietary


Personal/Business

Are all OS Alike?


MS
-
DOS (DOS)


Apple MAC OS


Microsoft Windows

Types of Operating Systems


Real Time Operating Systems


Operating Systems for Networks, Servers, and
Mainframes


Operating Systems for Mobile Devices


Operating Systems for Personal Computers

A program with a specific purpose that
must guarantee certain response times
machine’s application is useless



(image)

Real Time Operating Systems

Multiuser operating enables more than one user to
access the computer system at one time by efficiently
handling and prioritizing requests from multiple users.



Microsoft Windows and Mac OS x are considered
network operating systems.

Operating Systems for
Networks, Servers, and
Mainframes

What kind of operating system does a smartphone use?

Operating Systems for Mobile Devices

Symbian
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Nokia

Blackberry


RIM

Windows Mobile


Microsoft

iPhone iOS


Apple

Android


Google

Web OS


Palm

Microsoft Windows


Windows 98

Windows 2000

Windows XP

Windows Vista

Windows 7

Windows 8

Mac


OS X


first commercially available
operating system to
incorporate GUI (graphical
user interface) with user
friendly point
-
and
-
click
technology

Linux


open source operating
system designed for use
on personal computers
and as a network
operating system

Operating Systems for Personal Computer

What does the Operating System Do?


Provides a User Interface


It manages the processor or CPU


It manages memory and storage

Microsoft Windows OS Mountain Lion

What the Operating System Does?


It manages the computer system hardware and
peripheral devices


It provides a applications to work with the CPU


The Boot Process

Starting Your Computer


Rom Bios Start Program


Power
-
On Self
-
Test


Cmos Ram


Loading the Operating System


Finale Configuration


Boot Errors

Computer Start Up

BI OS

B
asic
I
nput/

O
utput
S
ystem

CMOS

Bios set
-
up utility

POWER
-
ON

SELF
-
TEST

Computer Start Up

BI OS

B
asic
I
nput/
O
utput

S
ystem

Computer Start Up

CMOS

Bios set
-
up utility

Computer Start Up

P OWE R

0N

SELF TEST

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BIOS LOCATES DRIVE



Beginning of bootable disk, contains master boot record


BIOS LOADS MBR TO RAM


Scans partition table, locates active partition


MBR LOADS 1st SECTOR of ACTIVE PARTION


Continues loading Volume boot record which loads bootmgr


Bootmgr LOADS BCD/REGISTRY HIVE


Loads WINLOAD exe. Initial start up of win, boot window displays


Loading The Operating System

Volume Boot
record

Drive C starts

(active partition
)

Master boot record

Beginning of
drive

MBR
program

Partition table

BootMgr

Operating System Takes Control

WINLOAD.exe


Loads OS kernel & HAL to ram


Loads & reads system reg. hive


Starts to load drivers

NToskrnl.exe(
os

kernel)

Remains in ram

BOOT ERRORS