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Quizzes > Computers & Technology > Computers & IT

Are You a Computer Essentials Expert? Take the Quiz!

Think you can ace PC basics and hardware knowledge? Start the computer essentials quiz!

Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art illustration of computer quiz elements on coral background featuring PC basics hardware software icons

This computer essentials quiz helps you check your skills in PC basics, hardware, software, and security. Use it to spot gaps before a class or exam and pick up quick tips as you go. If you want a gentler start, try the intro quiz , then move on to the hardware and software practice .

What does CPU stand for?
Central Program Unit
Central Performance Unit
Computer Processing Unit
Central Processing Unit
The CPU stands for Central Processing Unit, which acts as the brain of the computer by executing instructions and processing data. It consists of the arithmetic logic unit, control unit, and various registers to perform computations. Every modern computer relies on the CPU to run operating systems and applications. For more details, see .
Which component is considered the computer's primary storage?
Solid State Drive (SSD)
Read-Only Memory (ROM)
Random Access Memory (RAM)
Hard Disk Drive (HDD)
Primary storage refers to memory that the CPU can access directly, which is RAM. RAM provides fast, temporary storage for data and instructions while a system is running. Unlike SSDs or HDDs, RAM is volatile and loses its contents when power is removed. Learn more at .
What is the function of RAM?
To process arithmetic and logic operations
To manage power distribution within the computer
To temporarily store data for quick access by the CPU
To permanently store data when the computer is off
RAM (Random Access Memory) provides temporary storage for data and instructions that the CPU needs for current tasks. It allows quick read and write operations, speeding up application and system performance. Because RAM is volatile, it loses its data when the computer is powered off. More information can be found at .
What does HDD stand for?
High Data Device
High Definition Drive
Hard Data Disc
Hard Disk Drive
HDD stands for Hard Disk Drive, a storage device that uses spinning disks to read and write data magnetically. HDDs have been a traditional form of secondary storage in computers for decades. They offer large capacities at lower cost compared to other storage types. See for further reading.
Which device is an input device?
Keyboard
Printer
Speaker
Monitor
An input device allows a user to send data or control signals to a computer; a keyboard is one of the most common input devices. Monitors and speakers are output devices, displaying visuals and audio respectively, while printers output physical copies. Input devices translate user actions into signals the computer can process. Learn more at .
What does URL stand for?
Uniform Resource Locator
Uniform Reference Link
Universal Resource Locator
Universal Reference Locator
URL stands for Uniform Resource Locator, which is the global address of documents and resources on the web. URLs specify the protocol (such as http or https) and the resource's location on a server. They enable browsers to retrieve web pages and files. For more details, refer to .
What protocol is used to browse the web?
SMTP
FTP
HTTP
TCP
HTTP (Hypertext Transfer Protocol) is the foundation of data communication for the World Wide Web, defining how messages are formatted and transmitted. Web browsers use HTTP to request web pages from servers. Other protocols like FTP and SMTP serve different functions (file transfer and email, respectively). More information at .
What file extension is commonly used for executable files on Windows?
.exe
.txt
.doc
.jpg
On Windows systems, executable programs typically have the .exe file extension, indicating they can be run as applications. Other extensions like .doc, .txt, and .jpg are used for documents, text files, and images respectively. The OS loader recognizes .exe files to start processes. See for more details.
What is BIOS?
Binary Internal Operating Software
Basic Internal OS
Basic Input/Output System
Binary Input/Output Service
BIOS stands for Basic Input/Output System; it's firmware stored on a motherboard chip that initializes hardware during the boot process. It performs the Power-On Self Test (POST) and loads the bootloader for the operating system. Modern PCs may use UEFI instead of legacy BIOS for advanced features. For further reading, see .
What is the purpose of a graphics card?
To provide long-term data storage
To render images and video to the display
To process audio signals for speakers
To manage network communications
A graphics card, or GPU, accelerates the rendering of images, animations, and video for display on a monitor. It contains its own processor and memory to offload these tasks from the CPU. High-performance graphics cards are essential for gaming, video editing, and other graphics-intensive applications. More details at .
What bus standard is commonly used for connecting SSDs nowadays?
PCIe
USB
SATA
AGP
Modern SSDs often connect via the PCI Express (PCIe) bus for higher throughput than SATA. PCIe-based NVMe drives leverage multiple lanes to achieve faster read/write speeds. SATA remains common for older or budget drives but is limited to lower transfer rates. Learn more at .
Which is volatile memory?
Read-Only Memory (ROM)
Hard Disk Drive (HDD)
Solid State Drive (SSD)
Random Access Memory (RAM)
Volatile memory requires power to maintain stored information; RAM is volatile because it loses data when the system is powered off. Non-volatile memory like ROM, SSDs, and HDDs retain data without power. RAM's volatility allows fast read/write operations essential for active processing. More at .
Which port transmits high-definition digital video and audio signals?
DVI
HDMI
DisplayPort
VGA
HDMI (High-Definition Multimedia Interface) carries uncompressed digital video and audio over a single cable. VGA is analog-only, DVI carries video only, and DisplayPort is a separate digital standard. HDMI is ubiquitous on TVs, monitors, and gaming consoles. For further details, see .
Which operating system uses the Linux kernel?
Ubuntu
FreeBSD
Windows 10
macOS
Ubuntu is a popular Linux distribution built on the Linux kernel. The Linux kernel is open-source and forms the core of many operating systems including Fedora, Debian, and Android. Windows and macOS use their own proprietary kernels, while FreeBSD uses the BSD kernel. More information at .
What does SSD stand for?
Solid State Drive
Standard Solid Disk
Solid Storage Device
Secure Storage Disk
SSD stands for Solid State Drive, a storage device that uses flash memory instead of spinning disks, resulting in faster access times and improved durability. SSDs have no moving parts, unlike HDDs, and are commonly used in modern laptops and desktops. They offer lower power consumption and quicker boot times. See for more.
In networking, what does DNS stand for?
Domain Name Service
Domain Name System
Dynamic Network Service
Data Name Server
DNS stands for Domain Name System, which translates human-readable domain names into IP addresses that machines use to identify each other on the network. It functions like a phone book for the Internet. DNS servers handle queries from clients, returning the corresponding IP address. More at .
What RAID level provides mirroring without striping?
RAID 10
RAID 5
RAID 0
RAID 1
RAID 1 implements disk mirroring by duplicating the same data onto two or more drives, providing redundancy but no striping. RAID 0 offers striping for performance but no mirroring. RAID 5 provides parity-based fault tolerance with striping, and RAID 10 combines mirroring and striping. Read more at .
Which service resolves domain names to IP addresses?
DHCP
DNS
HTTP
FTP
The DNS (Domain Name System) service resolves human-friendly domain names into IP addresses that networking equipment uses to route data. DHCP (Dynamic Host Configuration Protocol) assigns IP addresses to devices, while HTTP and FTP are application-layer protocols for web and file transfer respectively. DNS is critical for everyday internet browsing. See .
What is the primary difference between a 32-bit and a 64-bit operating system?
A 64-bit OS cannot run older applications
A 64-bit OS can address more than 4 GB of RAM, while a 32-bit OS cannot
A 32-bit OS is always faster than a 64-bit OS
A 32-bit OS supports more CPU cores than a 64-bit OS
The key difference is memory addressing: 32-bit systems are limited to around 4 GB of RAM, while 64-bit systems can handle vastly more memory. This allows 64-bit OSes to support heavier workloads and larger applications. 64-bit systems also benefit from enhanced security features. For more, visit .
What is the main function of the chipset on a motherboard?
To provide additional storage for the operating system
To facilitate communication between the CPU, memory, and peripherals
To supply power to the CPU
To act as a dedicated graphics processor
The chipset on a motherboard manages data flow between the CPU, RAM, storage devices, and peripheral buses. It comprises multiple integrated circuits that control communications and coordinates I/O functions. Modern chipsets also handle USB, SATA, and PCIe interfaces. For details, see .
In CPU architecture, what does multi-threading allow?
Use of multiple CPUs in a single system
Execution of multiple threads concurrently on each CPU core
Automatic voltage regulation
Overclocking beyond factory settings
Multi-threading enables a single CPU core to execute multiple instruction threads concurrently, improving utilization and throughput. Intel's implementation, Hyper-Threading, duplicates certain CPU resources to achieve this. It helps performance in multi-tasking and parallel workloads. Learn more at .
What does UEFI stand for?
Universal Embedded Firmware Interface
Unified External File Interface
Universal Extensible Firmware Integration
Unified Extensible Firmware Interface
UEFI stands for Unified Extensible Firmware Interface, a modern replacement for legacy BIOS with advanced features like secure boot, larger drive support, and a graphical interface. It initializes hardware and passes control to the operating system. UEFI improves security and functionality over older firmware standards. For more information, see .
What is overclocking?
Underclocking a component to reduce heat output
Running a hardware component at a higher speed than its rated specification
Installing drivers for new hardware
Optimizing software for better performance
Overclocking involves setting a component such as a CPU, GPU, or memory to run at higher speeds than its factory default to gain performance. This can increase heat output and power consumption, often requiring better cooling solutions. While it can boost performance, overclocking may void warranties or reduce component lifespan. More details at .
Which file system is natively used by Windows NT-based systems?
FAT32
exFAT
HFS+
NTFS
NTFS (New Technology File System) is the default file system for Windows NT-based operating systems, offering features like journaling, encryption, and large volume support. FAT32 and exFAT are older or cross-platform systems with fewer features. HFS+ is used by macOS. For more, see .
What is ECC memory used for?
Error detection and correction in memory
Increasing memory speed beyond standard ratings
Providing non-volatile data storage
Encrypting data stored in RAM
ECC (Error-Correcting Code) memory detects and corrects common types of data corruption in RAM by using additional bits for parity. It is commonly used in servers and workstations where data integrity is critical. Standard non-ECC memory cannot correct errors and is more prone to silent data corruption. For further reading, see .
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Study Outcomes

  1. Identify Core PC Components -

    Recognize and name essential hardware parts such as the CPU, RAM, and storage devices through targeted PC hardware quiz questions.

  2. Differentiate Software Types -

    Distinguish operating systems from application software and understand their roles by answering software fundamentals quiz items.

  3. Apply Troubleshooting Techniques -

    Use basic diagnostic steps to resolve common computer issues, reinforcing your approach with real-world computer skills quiz scenarios.

  4. Evaluate Digital Literacy Skills -

    Assess your proficiency in core digital tools and practical tasks using this digital literacy test to highlight areas for improvement.

  5. Analyze Data Management Concepts -

    Understand file systems, storage hierarchies, and backup strategies to manage and protect data effectively as part of computer essentials.

  6. Master Computer Basics -

    Solidify foundational knowledge of system architecture, user interfaces, and best practices through a comprehensive computer basics quiz format.

Cheat Sheet

  1. Essential PC Hardware Components -

    Get to know your CPU, RAM and storage inside out: the CPU's clock speed (measured in GHz) drives processing power, while RAM holds active data for lightning-fast access and storage (HDDs or SSDs) archives your files permanently. Use the mnemonic "C.R.S." (CPU-RAM-Storage) to recall the core trio when reviewing computer essentials for a computer basics quiz.

  2. Operating System Roles & File Management -

    An OS manages hardware resources, provides a user interface, schedules processes and safeguards data through built-in security layers (source: CS50 course materials). Remember the four core functions - Hardware control, UI delivery, process scheduling and file management - to ace any software fundamentals quiz or digital literacy test.

  3. System vs. Application Software -

    System software (like Windows, macOS or Linux kernels and device drivers) sits between hardware and apps, while application software (e.g., word processors, browsers, games) helps you perform tasks. A handy trick: "S + A = Satisfy" reminds you that System precedes Application in the boot sequence and daily workflows (CompTIA A+ reference).

  4. Binary & Data Measurement Units -

    All data is stored in binary, where 1 byte = 8 bits and 1 KB = 1,024 bytes (not 1,000!). Use the rhyme "Bits are small, bytes stand tall" to cement this in memory for your computer skills quiz and speed through any conversion question.

  5. Basic Networking Concepts -

    Familiarize yourself with LAN vs. WAN, IP addressing (IPv4's four octets ranging 0 - 255) and DNS lookup processes to connect names with numbers. Visualize the OSI model's seven layers as "Please Do Not Throw Sausage Pizza Away" to recall each layer's role during a PC hardware quiz or software fundamentals quiz.

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