9th Grade

Operating
System
(OS)
2nd Quarter – Week 4
Operating System (OS)
• An operating system is the most important software that
runs on a computer.
• It manages the computer's memory, processes, and all
its software and hardware.
• Without an operating system, a computer is useless.
• Computer's operating system (OS) manages all of the
software and hardware on the computer.
How OS Works
 TYPES OF OPERATING
01 SYSTEM
• Modern operating systems use a Graphical User
Interface, or GUI (pronounced "gooey").
• A GUI lets you use your mouse to click on icons,
buttons, and menus, and everything is clearly displayed
on the screen using a combination of graphics and text.
• Before GUIs, computers had a command-line
interface, which meant the user had to type every
single command to the computer, and the computer
would only display text.
Types of OS
1. Microsoft Windows
Microsoft created the Windows operating system in the
mid-1980s. Over the years, there have been many
different versions of Windows, but the most recent
ones are Windows 10 (released in 2015), Windows 8
(2012), Windows 7 (2009), and Windows Vista (2007).
Windows comes pre-loaded on most new PCs, which
helps to make it the most popular operating system in
the world.
Types of OS
1. Microsoft Windows
Types of OS
2. Apple Mac OS X
Mac OS is a line of operating systems created by
Apple. It comes preloaded on all new Macintosh
computers, or Macs. All of the recent versions are
known as OS X (pronounced O-S Ten), and the
specific versions include El Capitan (released in 2015),
Yosemite (2014), Mavericks (2013), Mountain Lion
(2012), and Lion (2011).
Types of OS
2. Apple Mac OS X
Types of OS
3. Linux
Linux (pronounce LINN-ux) is a family of open source
operating systems, which means that they can be
modified and distributed by anyone around the world.
Linux is named after Linus Torvalds, who created the
Linux kernel in 1991. The kernel is the computer code
that is the central part of an operating system.
Types of OS
3. Linux
Types of OS
4. Remix OS
It is a computer operating system for personal
computers and based on the ARM architecture and
ships preinstalled on a number of 1st- and 3rd-party
devices.
Remix OS for PC allows users to run Android
applications on any compatible Intel-based PC.
Types of OS
4. Remix OS
02 INSTALLING WINDOWS 7
OPERATING SYSTEM
Here are some of the most important things
you should take into consideration when
planning for your Windows 7 installation:
• Check System Requirements
• Check Hardware and Software Compatibility
• Determine Disk Partitioning Options
• Complete a Pre-Installation Checklist
System Requirements
• 1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64)
processor*
• 1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit)
• 16 GB available hard disk space (32-bit) or 20 GB (64-
bit)
• DirectX 9 graphics device with WDDM 1.0 or higher
driver x64 vs x86 installer
Type of Installation
• Upgrade (In-place upgrade) – This alternative
replaces your present variant of Windows with Windows
7, and keeps your records, settings, and projects set up
on your PC.
• Custom ("fresh" installation) – This choice replaces
your present version of Windows with Windows 7, yet
doesn't keep your records, settings, and programs. It's
occasionally referred to a bare metal installation for that
reason.
The procedures in installing Windows 7
operating system:
1. Turn your computer on then press Del or F2
(depending on your computer’s main board) to enter
the system BIOS.
2. Go to Boot menu and choose Boot from CD/DVD as
your priority 1.
The procedures in installing Windows 7
operating system:
The procedures in installing Windows 7
operating system:
3. Save the configuration and exit BIOS then reset your
computer.
The procedures in installing Windows 7
operating system:
4. Insert Windows 7 DVD into your DVD drive then start
up your computer, Windows 7 will be loading files.
The procedures in installing Windows 7
operating system:
5. Select your language, time
& currency format,
keyboard or input method
and click Next.
6. Click Install now.
The procedures in installing Windows 7
operating system:
7. Check I accept the license terms and click Next.
The procedures in installing Windows 7
operating system:
8. Click Upgrade if you already
have a previous Windows
version or Custom
(advanced) if you don’t have
a previous Windows version
or want to install a fresh
copy of Windows 7.
The procedures in installing Windows 7
operating system:
9. (Skip this step if you chose Upgrade and have only
one partition) Select the drive where you want to install
Windows 7 and click Next. If you want to make any
partitions, click Drive options (advanced), make the
partitions and then click Next.
The procedures in installing Windows 7
operating system:
The procedures in installing Windows 7
operating system:
10. It will now start installing
Windows 7. The first step, (e.i.
Copying Windows files) was
already done when you booted
the Windows 7 DVD so it will
be completed instantly.
The procedures in installing Windows 7
operating system:
11. After completing the first
step, it will expand
(decompress) the files that it
has copied.
The procedures in installing Windows 7
operating system:
12. The third and fourth
step will also complete
instantly like the first
step.
The procedures in installing Windows 7
operating system:
13. After that, it will
automatically restart after
15 seconds and continue
the setup. You can also
click Restart now to restart
without any delays.
The procedures in installing Windows 7
operating system:
14. After restarting for the first time, it will continue the
setup. This is the last step so it will take the most time
that the previous steps.
The procedures in installing Windows 7
operating system:
15. It will now automatically restart again and continue the
setup. You can click Restart now to restart without any
delays.
The procedures in installing Windows 7
operating system:
16. Type your desired
username in the text-box
and click Next. It will
automatically fill up the
computer name.
The procedures in installing Windows 7
operating system:
17. If you want to set a
password, type it in the
textboxes and click Next.
The procedures in installing Windows 7
operating system:
18. Type your product key in
the textbox and click Next.
You can also skip this step
and simply click next if you
want to type the product key
later. Windows will run only
for 30 days if you do that.
The procedures in installing Windows 7
operating system:
19. Select your desired option
for Windows Updates.
The procedures in installing Windows 7
operating system:
20. Select your time, date, and
click Next.
The procedures in installing Windows 7
operating system:
21. If you are connected to any network, it will ask you to
set the network’s location. After that, you are done
installing the OS.
The procedures in installing Windows 7
operating system:
Thanks!
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