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Questions and Answers
What is the purpose of diagnostics in ICT?
Which computer error is indicated when the LED indicator of the monitor is flashing in yellow color during startup?
What happens when a computer shows the processor's and/or motherboard's brand during startup but doesn't continue?
What does it mean when a computer boots up but fails to load the operating system?
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Which type of error occurs when many pop-up windows appear in standby mode despite being disconnected from the internet?
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What type of errors are caused by malfunctioning hardware components and can be identified by short beep sounds during startup?
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Which type of error can be caused by corrupted driver files or malfunctioning hardware components?
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What kind of errors are moderately dangerous and are caused by malfunctioning hardware components or corrupted operating system modules?
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In which type of errors does the application causing it shut down, with more serious cases leading to system instability or unresponsiveness?
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What type of errors are caused by application glitches and occur while the applications are running?
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Study Notes
Diagnostics in Computer Systems
- Diagnostics is a method of testing computer hardware devices or software programs to ensure they work as expected before release to the public.
Types of Computer System Errors
- Errors can occur from the point of opening the computer to the point of reaching standby mode.
- Types of errors include:
- No video output, with the monitor's LED indicator flashing yellow or steady orange
- Failure to boot, showing the processor or motherboard brand, but not continuing
- Never-ending loading of the operating system
- Lots of pop-up windows showing on standby mode, possibly due to an "aftershock virus"
- Lots of hardware installation windows appearing, even after reinstalling hardware
- Safe mode not working, showing a list of files in Command prompt style
- Keyboard and mouse system restart, causing random file deletion
- Sound on/off error, with no sound heard when running an audio file
- Application causing system restart, similar to the mouse problem
Operating System (OS) Errors
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OS errors can be classified into various categories, including:
System Errors
- Caused by malfunctioning hardware components or corrupted operating system modules
- Moderately dangerous type of error
Runtime Errors
- Caused by corrupted or malfunctioning system files or software executables
- Can cause applications to shut down or the system to become unstable
Stop Errors
- Caused by corrupted hardware, such as malfunctioning RAM modules or bad sectors on hard disks
- Can be difficult to resolve
Device Manager Errors
- Caused by corrupted driver files or malfunctioning hardware components
- Solvable by reinstalling or updating drivers, or replacing hardware components
POST Code Errors
- Caused by malfunctioning hardware components
- Characterized by short beep sounds from the motherboard's internal speaker
- Occur when pressing the power button to turn on the PC
Application Errors
- Caused by applications while they are running
- Commonly caused by glitches in the program code itself
- Normally resolved by updating the program
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Description
Learn about diagnosing computer hardware and software, as well as different types of computer system errors. Explore benchmarks, preventive maintenance, hardware and software terms, and testing methods.
