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Quizzes > Computers & Technology > Computers & IT

Computer Diagram Quiz: Label Parts and Identify Devices

Think you can ace a computer parts diagram quiz? Dive in!

Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art style computer diagram showing keyboard monitor mouse motherboard CPU icons on teal background for parts quiz

Ready to put your knowledge to the test? Here's your ultimate "computer diagram with parts" challenge. In this free computer hardware quiz, you'll practice labeling computer devices, pinpoint input and output peripherals, and identify computer components with confidence. From motherboard to memory modules, every element awaits your accurate label. Whether you're brushing up on the basic computer parts overview or diving deeper into our interactive CPU diagram , this computer parts diagram quiz offers clear guidance and instant feedback. Perfect for students, tech enthusiasts, or anyone curious about computer architecture, this fun exercise will sharpen your skills and boost your confidence. With instant scoring and helpful explanations, you'll quickly see where to improve. Take the quiz now and discover how well you know your hardware!

Which component is known as the 'brain' of the computer and performs calculations?
Motherboard
Graphics Processing Unit (GPU)
Random Access Memory (RAM)
Central Processing Unit (CPU)
The CPU, or Central Processing Unit, is responsible for executing instructions and performing calculations. It is often referred to as the 'brain' of the computer because it processes data and controls other components. All program instructions are run by the CPU. More on CPU
Which memory module holds the operating system and data currently in use for quick access?
Hard Disk Drive (HDD)
RAM
USB Flash Drive
Solid State Drive (SSD)
Random Access Memory (RAM) is volatile memory used by the CPU to store data and code that are in active use. It provides fast read and write access compared to storage drives. Data in RAM is cleared when power is removed. More on RAM
Which device is an example of an input device?
Keyboard
Monitor
Speaker
Printer
An input device allows users to enter data into a computer. Keyboards translate keystrokes into digital signals for processing. Output devices like monitors and speakers present information to the user. More on input devices
Which device is an output device that displays images?
Scanner
Mouse
Microphone
Monitor
A monitor is an output device that renders graphical and text information for users to see. It receives video signals from the computer's GPU or video card. Input devices like scanners or microphones do not display information. More on monitors
Which component provides power to all internal computer parts?
Power Supply Unit (PSU)
Cooling Fan
Hard Drive
Random Access Memory (RAM)
The Power Supply Unit (PSU) converts AC voltage from a wall outlet into regulated DC voltages needed by computer components. It supplies power rails like 12V, 5V, and 3.3V. Without a PSU, no part of the computer would receive power. More on PSUs
Which storage device uses spinning disks to store data magnetically?
Optical Drive
Hard Disk Drive (HDD)
Flash Drive
Solid State Drive (SSD)
A Hard Disk Drive (HDD) stores data on rotating magnetic platters. Read/write heads move over the platters to access or record data. SSDs use flash memory and have no moving parts. More on HDDs
Which port is commonly used to connect USB flash drives and peripherals?
USB-A
HDMI
Ethernet (RJ45)
VGA
USB-A is the standard rectangular USB port found on most computers and peripherals. It supports data transfer and power to USB devices like flash drives and keyboards. HDMI and VGA handle video signals, while Ethernet is for network connectivity. More on USB connectors
Which of the following is a non-volatile storage device?
CPU Register
Random Access Memory (RAM)
Cache Memory
Solid State Drive (SSD)
A Solid State Drive (SSD) uses flash memory to retain data even when power is removed. RAM and cache are volatile and lose their contents on shutdown. CPU registers are temporary storage locations within the processor. More on SSDs
Which type of expansion slot is typically used for graphics cards in modern PCs?
ISA
PCIe x16
AGP
PCI
PCI Express (PCIe) x16 slots are designed to provide the bandwidth required by modern graphics cards. Older interfaces like AGP and PCI offer less bandwidth and are largely obsolete. ISA is a very old standard with far lower speeds. More on PCIe
Which onboard chip is responsible for managing high-speed communication between CPU, memory, and GPU?
CMOS Battery
Northbridge
Southbridge
BIOS Chip
The Northbridge chipset handles high-speed communications such as CPU-to-memory and CPU-to-GPU pathways. The Southbridge deals with lower-speed peripherals like USB and audio. BIOS and CMOS battery have different roles unrelated to bus management. More on chipsets
Which small battery on the motherboard powers the real-time clock and preserves BIOS settings when the computer is turned off?
GPU backup battery
CMOS battery
UPS battery
RAID controller battery
The CMOS battery supplies power to the real-time clock and the CMOS memory that stores BIOS settings. When removed or depleted, date and BIOS configurations can reset. UPS batteries provide external power backup to the whole system, not just the motherboard. More on CMOS batteries
Which interface would you use to connect a modern NVMe SSD directly to the motherboard?
SATA II port
IDE connector
M.2 slot
PCI slot
M.2 slots support NVMe SSDs using the PCIe bus, providing very high data transfer rates in a compact form factor. SATA II and IDE are older interfaces with lower bandwidth. PCI slots are not designed for NVMe drives without an adapter. More on M.2
Which bus architecture traditionally connects the CPU to the main memory?
USB bus
Front-side bus
SATA bus
PCI bus
The front-side bus (FSB) was the main pathway for data transfer between the CPU and main memory in many legacy PC designs. Modern systems often replace it with point-to-point links. PCI is for expansion cards, USB for peripherals, and SATA for storage devices. More on FSB
What is the standard pin count of the ATX main power connector on modern motherboards?
8-pin
24-pin
4-pin
20-pin
Recent ATX specifications use a 24-pin main power connector to supply various voltage rails. Older ATX standards used a 20-pin connector. Four-pin and eight-pin connectors are used for supplementary CPU power, not the main board power. More on ATX power
Which RAID level uses disk striping without parity or redundancy?
RAID 5
RAID 10
RAID 0
RAID 1
RAID 0 stripes data across multiple disks for increased throughput but offers no fault tolerance or redundancy. RAID 1 mirrors data, RAID 5 uses parity, and RAID 10 combines mirroring and striping. More on RAID 0
Which motherboard component stores the UEFI or BIOS firmware?
Southbridge
Flash ROM chip
Northbridge
CMOS battery
UEFI/BIOS firmware is stored in a non-volatile Flash ROM chip on the motherboard. The CMOS battery only powers configuration memory, not the firmware itself. Northbridge and Southbridge are chipset components handling data pathways and peripherals. More on BIOS storage
Which chipset component typically handles USB, audio, and disk controllers?
Northbridge
CPU cache
Southbridge
GPU memory
The Southbridge handles lower-speed peripheral interfaces such as USB, audio codecs, SATA controllers, and PCI slots. The Northbridge covers higher-speed paths like CPU to RAM and GPU. CPU cache and GPU memory are separate component-specific memories. More on Southbridge
Which high-speed serial bus standard introduced by IEEE supports up to 800 Mbps and allows peer-to-peer connections?
Thunderbolt
SATA III
USB 2.0
IEEE 1394 (FireWire 800)
IEEE 1394, commonly known as FireWire 800, supports data transfer rates up to 800 Mbps and allows devices to connect in peer-to-peer fashion. USB 2.0 tops out at 480 Mbps and follows a host - device model. SATA III is for storage, and Thunderbolt is newer with higher speeds. More on IEEE 1394
Which interconnect technology introduced by Intel replaced the front-side bus with point-to-point links for CPU-to-chipset communication?
HyperTransport
Intel QuickPath Interconnect (QPI)
Direct Media Interface (DMI)
Hyper-Threading
Intel QuickPath Interconnect (QPI) replaced the traditional front-side bus by providing high-speed, point-to-point links between the CPU and chipset. It offers faster data throughput and lower latency. DMI is a related interface for chipset-to-chipset communication, while HyperTransport is AMD's solution. More on QPI
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Study Outcomes

  1. Identify Computer Components -

    Correctly label each part on a computer diagram, reinforcing your familiarity with essential hardware elements.

  2. Distinguish Input and Output Devices -

    Differentiate between input and output components by recognizing their functions and roles in a computer system.

  3. Match Definitions to Parts -

    Associate accurate definitions with corresponding hardware pieces to deepen your understanding of computer terminology.

  4. Interpret Computer Diagrams -

    Analyze a full computer parts diagram to understand how individual components fit together in a system.

  5. Apply Hardware Knowledge -

    Use your reinforced understanding of computer parts to confidently identify and describe devices in real-world scenarios.

Cheat Sheet

  1. Motherboard Architecture -

    The motherboard serves as the central hub in any computer diagram with parts, hosting slots for the CPU, RAM, and expansion cards. Use the mnemonic "SPARC" (Slots, Ports, Audio, RAM slots, Connectors) to remember key components. University-level resources from MIT and Stanford emphasize mastering this layout for success on the computer parts diagram quiz.

  2. CPU Functionality -

    The CPU is the brain of the system, executing instructions through the Fetch-Decode-Execute (FDE) cycle; a fun memory aid is "Fetch Down, Execute Everything." A 3.2 GHz processor completes 3.2 billion cycles per second, so identifying this on a computer parts diagram quiz will boost your confidence. Research from IEEE computer architecture studies highlights how clock speed and core count impact overall performance.

  3. Memory vs. Storage -

    RAM is volatile memory, while HDDs and SSDs offer non-volatile storage in the memory hierarchy pyramid (Registers > Cache > RAM > SSD > HDD). Recall the phrase "Really Fast Caches Are Speedy" to order these layers quickly during a computer hardware quiz. Academic sources like the University of Cambridge note that understanding access times is key for system optimization.

  4. Input & Output Devices -

    Input devices (keyboard, mouse) send data in, while output devices (monitor, printer) send data out, so on a computer diagram with parts quiz you'll label each correctly. A handy trick is "I before O," just like input before output in alphabetical order when labeling computer devices. Official vendor docs from Microsoft and Apple list common examples to reinforce your knowledge.

  5. Power Supply & Cooling -

    The power supply unit (PSU) converts AC to DC, and you can calculate its wattage needs with P=V×I; always pick a PSU rated ~20% above max draw. Cooling involves fans, heatsinks, and thermal paste to keep components under 85 °C, as recommended by hardware guidelines from Intel. Mastering these parts ensures you ace any computer hardware quiz section on power and temperature management.

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