1. Tips And Tricks
In The World
Of
Computers
A CSI-DDU Knowledge Sharing Seminar

2. • Processor
• Memories (RAM and ROM)
• Hard Disk Drive (HDD)
• Display Unit
• Clock
• Graphics processing unit (GPU)
• Operating System

3. • “The Brain” of the computer
• Keep it cool
• Optimization done by the manufacturer
• Cores and the Generations:
• Core refer to the number of processing units available, like dual
and core 2 duo, quad core, etc…
• Generation difference typically with Intel processors have
difference in terms of performance, integrated graphics and clock
speeds.
• Overclock to improve the speed

5. • Random Access Memory to improve effective
access time
• If your budget permits buy at least 4GB RAM
(again this will be obsolete within a couple of
years)
• You can view memory usage from Windows Task
Manager and close applications that
• You may even change the size of virtual memory
if you are running many applications at a time.
• For this go to “Computer”
• Right click -> Properties -> Advanced System Settings
(left pane) -> Advanced Tab -> Settings -> Advanced ->
Change

7. • Clear temp files often
• To do so
• Go to run menu (WINDOWS + R) or from start menu
• Type temp and press enter
• Select and delete all files
• Do similar for %temp% by following the same steps.
• However you can use CCleaner which is a good
tool to clean up all the junk content on your
disk.

8. A simple RAM chip looks like this

9. • An added level in the
memory hierarchy
• For quick access to
frequently used data
• L1 and L2 cache
• Suggested cache size
is around 2-4MB
• Will help in speeding
processes.

10. • Used in computers to synchronize the operations of the
various devices of the clock.
• General speeds range from 2.3 GHz to 3.4 GHz and can
be upto 4.5 GHz (overclocked).
• Do consider this while buying a new system.
• Lets take a look at overclocking.

11. • Overclocking is the process of making
a computer or component operate faster than
the clock frequency specified by the
manufacturer by modifying system parameters
(hence the name "overclocking").
• The trade-offs are an increase in power
consumption and fan noise, the system can
become unstable if the equipment is
overclocked too much, and the risk of damage
due to excessive overvoltage or heat
generation.

12. • DISCLAIMER : PLEASE DO NOT TRY THIS UNTIL YOU
ARE FULLY AWARE OF THE CONSEQUENCES !!!
• Firstly you need to check for support for overclocking by
your motherboard
• Not a good choice with laptops due to component
spacing
• Fsb freqn, voltage,
• Video converting, gaming, ram overclocking
• Ssb caching

13. • Go to BIOS settings. During booting, keep pressing
F8/F2/ delete depending on the make of your system.
• Start by changing the
FSB frequency slowly
(restart after every
increase)
• CPU clock ratio/muliplier
can be increased for a
steep increase but not
advisable
• Increase your voltage
level too. This will enable
your components to
function just fine

14. • Finally use tools like PRIME 95 and CPU-Z.
• PRIME 95 will stress test your CPU (say for 12 hours), if
no error exists then you may go ahead and increase FSB
further, but if some exception is thrown you will have to
re-stratergize.
• CPU-Z will display Computer status after it has been
overclocked.
• USAGE:
• Improve overall system speed
• Applied by professionals in fields like video/image editing
• To improve gaming experience

15. • Stores permanent data.
• Non-volatile in nature.
• Available as 320GB, 500GB, 1TB ..
• Partitioning
• SATA, SCSI, SSD, Thunderbolt
• SSD vs HDD
• Go for SSD while buying a new PC. It is definitely the
future.

17. • This is the screen on which you see the graphics
• Go for LED rather than LCD
• Advantages: Power consumption and longevity.
• Keep your monitor updated with the latest drivers.
• Use power saver whenever possible. Reducing
brightness will save power/battery and your eyes !!!

18. • Known as “graphics card”
• Dedicated for graphics processing
• Advisable to have if:
• You are a hardcore gamer
• You are planning to use designing tools (Blender, CorelDraw)
• Wanting to use video editing softwares.
• Popular manufactures:
• Nvidia
• ATI
• Intel

20. • Software interface between user and hardware
• Variety available
• Linux flavours (UBUNTU, CENTOS, FEDORA, RedHat, ..)
• Macintosh (MAC OS)
• Windows (Vista, 7, 8, 8.1)
• You may have multiple OS on your machine. This is
known as dual booting wherein during booting , you shall
be given the choice.
• Go for a linux flavour and windows to get advantages of
both.
• Some basic tips.

23. • Also known as Bootsplash
• Bootsplash is a term for a graphical representation of the
boot process of the operating system.

24. • File which is responsible boot up screen is “bootres.dll “
• It resides at “C:WindowsBootResources”
• Replace this file with custom bootres.dll.
• How to create custom bootres.dll file ?

25. • Add Any Application to the
Windows Desktop Right-Click
Menu
• Create a Context Menu Item to
Copy a Text File To the Clipboard
• Enable More Fonts for the
Windows Command Prompt
• Remove or Hide Unwanted Items
From the Control Panel

26. • Press windows key + R
• Press regedit and press enter
• Choose proper path and find proper key
• Modify/add/delete required key
• Restart your pc

27. • What is batch file ?
• Its like shell script in linux
• It contains series of
commands to be executed
by CMD.

28. • To Create virus
• Deletes system files and crash O.S
• Create too many folders
• Continuously eject cd drive
• Maintain Personal Log with Notepad
• Open Multiple Programs by pressing single key

30. Computer Viruses have always raised the anxiety
of people ever since they came into the picture.
When you were a child you might have heard the
saying:
“PREVENTION IS BETTER THAN CURE”.
That’s precisely what I advice you to do.
As you might be aware computer viruses don't
forge a problem in Linux OS as they do in
windows.

31. Firstly the trick with viruses is NOT to let them
execute under any circumstances.
Start by configuring a windows option called
autoplay.
Go to control panel and open the autoplay option.
Uncheck the [_] Use Autoplay for all media
devices option and select Take no action for each
and every thing. Save you changes.

33. That’s it next time you plug in a random pen drive
you don’t have to worry about viruses.

35. With autoplay configured your virus wont exeute.
But what about the harm already done to your
pendrive ?
Basically you’ll need to delete the virus files by
unlocking their system lock attributes.
The command used is:
>attrib –s –h file/folder name
Various options can be used with it known by:
>attrib /?
Here’s A Demo for you.

36. You Have Hotspot ON in your mobile. And you
can use that internet in your laptop by connecting
to that hotspot.
The question is can you share that internet again
through your laptop ?
Yes you can.

37. Here’s A list of Commands:
Set the network details:
netsh wlan set hostednetwork mode=allow
ssid=YourVirtualNetworkName key=YourNetworkPas
sword
Start the Wireless Hosted Network:
netsh wlan start hostednetwork
To stop the Wireless Hosted Network:
netsh wlan stop hostednetwork
To see the Wireless Hosted Network details, including
the MAC addresses of connected users:
netsh wlan show hostednetwork

38. Bootable Pendrive
How do you make a bootable pendrive ?

41. HydraVision™ Multi-monitor Management
Software enables you to tailor your desktop to the
way you work, so you can manage increased
amounts of information and improve your
productivity.
Your productivity is increased thanks to two
aspects HydraVision:
• Breadth - increase your desktop work space by
using up to two monitors
• Depth - create multiple layers of desktop
workspace with Multi-Desk

46. HD3D is supported by an advanced and
open ecosystem that, in conjunction with
specific Graphics hardware and software
technologies, enables 3D display
capabilities for many PC applications and
experiences.

49. Eyefinity advanced multiple-display technology
launches a new era of panoramic computing,
helping to boost productivity and multitasking with
innovative graphics display capabilities supporting
massive desktop workspaces, creating ultra-
immersive computing environments with super-
high resolution gaming and entertainment, and
enabling easy configuration and supporting up to
six independent display outputs simultaneously.

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