The document discusses different types of computer system errors that can occur from startup to reaching the desktop. It describes 10 common errors that can happen during boot up or at the desktop like no video output, failure to boot, endless loading screen, random restarts on mouse/keyboard use or application opening. It then explains different categories of operating system errors like system errors caused by hardware/software issues, runtime errors from corrupted files, stop errors from RAM/hard drive issues, and device manager, POST code, application and browser errors. True/false questions test the understanding of the causes and characteristics of these error types.

1. TYPES OF COMPUTER
SYSTEM ERROR

2. •THERE ARE SEVERAL ERRORS IN A COMPUTER FROM THE
POINT YOU OPEN IT UP TO THE POINT YOU REACH THE
STAND BY WINDOW (REACHING STANDBY WINDOWS
MEANS BOOT PROCESS HAS NO ERROR).

3. •1. NO VIDEO OUTPUT -
WHEN YOU OPEN YOUR PC,
NOTHING SHOWS UP IN YOUR
MONITOR AND THE LED
INDICATOR OF YOUR
MONITOR IS FLASHING IN
YELLOW COLOR.

4. 2. No Video
Output - Same as
number one but
now the LED
indicator of your
monitor is in
steady orange
color.

5. •3. DOESN'T BOOT - WHEN
YOU OPEN YOUR PC IT WILL
SHOW THE PROCESSOR’S BRAND
AND/OR THE MOTHERBOARD’S
BRAND BUT DOESN'T CONTINUE.
USUALLY THIS ERROR WILL
RESULT TO SYSTEM RESTART
OVER AND OVER AGAIN.

6. •4. NEVER ENDING LOADING OF
OPERATING SYSTEM - THE
COMPUTER OPENS UP THEN
BOOTS BUT WHEN THE
OPERATING SYSTEM LOADS IT,
DOESN'T CONTINUE AND IT WILL
TAKE A LONGTIME IF YOU'RE
GOING TO WAIT FOR IT TO LOAD.

7. 5. Lots of pop up windows showing on standby mode - This also happens even
if you try disconnecting your computer set from the internet. This is what we
called aftershock virus which will continue to run even if internet is
disconnected.

8. 6. Lots of hardware installation windows appear - This happens even if
you try installing the hardware. When you restart your set it will happen
again.

9. 7. Safe mode doesn't work - When you try going
to safe mode, all you will see is a list of files in
Command prompt style.

10. 8. Keyboard and mouse system
restart - This will happen only in
standby mode, when you move
your mouse or type something,
your system will automatically
restart and the worst part is it will
delete a file at random.

11. 9. Sound on/off error - Upon
loading the operating system,
you will hear a loading sound
and then the sound stops,
when you try running an
audio file, no sound will be
heard.

12. 10. Application causes system to restart - Just like the mouse
problem, when you open a program that will take the whole screen
like for example a game and/or a program applications, when you
close it, it will cause your system to restart.

13. Aside from the common computer errors, computers also can
have different Operating System (OS) errors. OS errors can
be classified into various categories such as:
1.System errrors
2.Run time errors
3.Stop errors
4.Device Manager Errors
5.POST code errors
6.Application errors
7.Browser Status codes

14. 1. System errors – These are moderately
dangerous types of errors among those that
can pop up on your PC. System errors are
caused by malfunctioning hardware
components, corrupted operating system
modules, etc.

15. 2. Runtime errors – Runtime errors are caused by
corrupted or malfunctioning system files or
software executables. Most runtime errors cause
the application that caused it to shut down.
However, more serious runtime errors may cause
the system to become unstable or unresponsive,
suggesting that you should restart your computer.

16. 3. Stop errors – Stop errors are caused
by corrupted hardware, especially
malfunctioning RAM modules and bad
sectors on hard disks. Stop errors can be
difficult to resolve at times.

17. 4. Device Manager Errors – These are
usually caused by corrupted driver files or
malfunctioning hardware components. In
case of the former cause, the problem is
often solved by reinstalling or updating the
drivers. However, the latter cause can often
be solved only by replacing hardware
components .

18. 5. POST code errors – POST code
errors are caused by malfunctioning
hardware components, and are
characterized by short beep sounds
from the tiny internal speaker of your
motherboard. POST code errors occur
when you press the power button to
turn on your PC.

19. 6. Application errors – These can
happen at any point of time. As the
name suggests, these are caused by
applications while those are running.
These are commonly caused by glitches
in the program code itself. These are
normally resolved by updating the
program to its latest version.

20. 7. Browser Status Codes – These are caused
by problems faced by browsers when trying to
access a website. These can be caused by
misplaced web pages in the server of the
website itself, or due to connection problems.
For instance, a 404 error would indicate that
the browser is trying to access a webpage that
does not exist in the specified location.

21. APPLY YOUR
KNOWLEDGE

22. ______1. THE COMPUTER OPENS UP THEN BOOTS BUT WHEN THE
OPERATING SYSTEM LOADS IT DOESN'T CONTINUE AND IT
WILL TAKE A LIFETIME IF YOU'RE GOING TO WAIT FOR IT TO LOAD.
______2. THIS ALSO HAPPENS EVEN IF YOU TRY DISCONNECTING
YOUR COMPUTER SET FROM THE INTERNET. THIS IS
WHAT WE CALLED AFTERSHOCK VIRUS WHICH CONTINUES TO RUN
EVEN IF INTERNET IS DISCONNECTED.
______3. THESE ARE MODERATELY DANGEROUS TYPES OF ERRORS
AMONG THOSE THAT CAN POP UP ON YOUR PC. SYSTEM
ERRORS ARE CAUSED BY MALFUNCTIONING HARDWARE
COMPONENTS, CORRUPTED OPERATING SYSTEM
MODULES.

23. ______4. CAUSED BY CORRUPTED OR MALFUNCTIONING SYSTEM
FILES OR SOFTWARE EXECUTABLES. MOST RUNTIME
ERRORS CAUSE THE APPLICATION TO SHUT DOWN.
______5. JUST LIKE THE MOUSE PROBLEM, WHEN YOU OPEN A
PROGRAM THAT WILL TAKE THE WHOLE SCREEN LIKE
FOR EXAMPLE A GAME AND/OR A PROGRAM APPLICATION, WHEN
YOU CLOSE IT, IT WILL CAUSE YOUR SYSTEM TO
RESTART.
______6. THIS WILL HAPPEN ONLY IN STANDBY MODE, WHEN YOU
MOVE YOUR MOUSE OR TYPE SOMETHING, YOUR SYSTEM
WILL AUTOMATICALLY RESTART AND THE WORST PART IS IT WILL
DELETE A FILE AT RANDOM.

24. ______7. UPON LOADING THE OPERATING SYSTEM,
YOU WILL HEAR A LOADING SOUND AND THEN THE
SOUND STOPS, WHEN YOU TRY RUNNING
AN AUDIO FILE, NO SOUND WILL BE HEARD.
______8. WHEN YOU TRY GOING TO SAFE MODE ALL
YOU WILL SEE IS A LIST OF FILES IN COMMAND
PROMPT STYLE.
______9. THIS HAPPENS EVEN IF YOU TRY
INSTALLING THE HARDWARE. WHEN YOU RESTART
YOUR SET, IT WILL HAPPEN AGAIN.

25. ______10. WHEN YOU OPEN YOUR PC, IT WILL SHOW THE
PROCESSOR BRAND AND/OR THE MOTHERBOARD BRAND
BUT DOESN'T CONTINUE. USUALLY THIS ERROR WILL
RESULT TO SYSTEM RESTART OVER AND OVER AGAIN.
______11. THESE CAN BE CAUSED AT ANY POINT OF TIME.
AS THE NAME SUGGESTS, THESE ARE CAUSED BY
APPLICATIONS WHILE RUNNING. THESE ARE USUALLY
CAUSED BY GLITCHES IN THE PROGRAM CODE ITSELF.
______12. WHEN YOU OPEN YOUR PC, NOTHING SHOWS
UP IN YOUR MONITOR AND THE LED INDICATOR OF YOUR
MONITOR IS FLASHING IN YELLOW COLOR.

26. ______10. WHEN YOU OPEN YOUR PC, IT WILL SHOW THE
PROCESSOR BRAND AND/OR THE MOTHERBOARD BRAND
BUT DOESN'T CONTINUE. USUALLY THIS ERROR WILL
RESULT TO SYSTEM RESTART OVER AND OVER AGAIN.
______11. THESE CAN BE CAUSED AT ANY POINT OF TIME.
AS THE NAME SUGGESTS, THESE ARE CAUSED BY
APPLICATIONS WHILE RUNNING. THESE ARE USUALLY
CAUSED BY GLITCHES IN THE PROGRAM CODE ITSELF.
______12. WHEN YOU OPEN YOUR PC, NOTHING SHOWS
UP IN YOUR MONITOR AND THE LED INDICATOR OF YOUR
MONITOR IS FLASHING IN YELLOW COLOR.

27. TRUE OR FALSE
Write letter A if its true and B if its false

28. ______ 13. A software error is a malfunction of a
hardware component in a computer system.
______14.Stop Errors are usually caused by
corrupted driver files or malfunctioning
hardware components.
______ 15. Overheating is a problem that
occurs in mainly older laptops and computers

29. ______ 16. The hardware components contain error
detection mechanisms that can detect when a
hardware error condition exists.
______ 17. Runtime errors are caused by corrupted
hardware, especially malfunctioning RAM
modules and bad sectors on hard disks. Stop errors
can be difficult to resolve at times.
______ 18. Device Manager Errors are moderately
dangerous types of errors among those that can
pop up on your PC.

30. ______ 19. POST code errors are caused by
problems faced by browsers when trying to
access a website.
______ 20. POST code errors are caused by
malfunctioning hardware components, and are
characterized by short beep sounds from the
tiny internal speaker of your motherboard.