System Components

Internal hardware components of a computer.

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System Components in CompTIA A+ refer to the essential hardware and software parts that make up a computer system. Central Processing Unit (CPU): The brain of the computer that processes instructions. Key specifications include cores, clock speed (measured in GHz), cache size, and socket type. M…

Concepts covered
MotherboardOptical DrivesGraphics Processing Unit (GPU)Power Supply Unit (PSU)Expansion CardsInput/Output (I/O) DevicesCooling SystemRandom Access Memory (RAM)Hard Disk Drive (HDD) and Solid State Drive (SSD)Central Processing Unit (CPU)
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CompTIA A+ - System Components Example Questions

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Question 1

A user's monitor display is flickering, despite the monitor's current settings being correct. What should be the next course of action?

Correct Answer: Check the video cable for loose connections or damage.

If a user's monitor is flickering, checking the video cable for damage or loose connections should be the next step, as faulty cables can cause display issues. Other options should be considered if the cable is not the issue.

Question 2

Which of the following input devices is most commonly used for precise drawing and graphic design tasks?

Correct Answer: Graphics tablet

The graphics tablet is the most commonly used input device for precise drawing and graphic design tasks. Here's why:

Graphics tablets:
- Provide high precision and pressure sensitivity, allowing for accurate control over line thickness and opacity.
- Offer a natural drawing experience similar to using a pen or pencil on paper.
- Allow for direct hand-eye coordination, as users can draw directly on the tablet's surface.
- Often come with specialized styluses that offer additional features like tilt sensitivity and programmable buttons.

Why other options are less suitable:

Touchpad:
- Primarily designed for cursor navigation on laptops.
- Lacks the precision and pressure sensitivity required for detailed graphic design work.

Optical mouse:
- While more precise than a touchpad, it still lacks the fine control and natural drawing feel of a graphics tablet.
- Does not offer pressure sensitivity or tilt recognition.

Trackball:
- Mainly used for general cursor control and navigation.
- Not designed for drawing or precise graphic design tasks.
- Lacks the intuitive drawing motion and pressure sensitivity of a graphics tablet.

Question 3

John is upgrading his computer and needs to find out if it's an ATX or Micro-ATX motherboard. Which of the following is the easiest and most accurate method?

Correct Answer: Check the motherboard's documentation or product label

The easiest and most accurate method to determine whether a motherboard is ATX or Micro-ATX is to check the motherboard's documentation or product label. This information is typically provided by the manufacturer and will definitively state the form factor of the motherboard. Measuring distances between components or counting expansion slots can be inaccurate methods, as the dimensions and layouts can vary even within the same form factor. The type of PSU connectors does not necessarily indicate the motherboard form factor. Therefore, referring to the official documentation or product label is the most reliable way to identify the motherboard's form factor.

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