Computer Hardware Overview Quiz
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Questions and Answers

What is a device that protects a computer from damage by voltage spikes?

Surge Suppressor

What are the three types of optical drives?

  • LaserDisc
  • Compact Disc (CD) (correct)
  • Blu-ray Disc (BD) (correct)
  • Digital Versatile Disc (DVD) (correct)

    • What is the primary function of a system fan in a computer?

    It helps bring cool air into and blow hot air out of the case.

    Where is the Power Supply Unit (PSU) located in a computer?

    <p>In the back corner of the PC case next to the motherboard.</p> Signup and view all the answers

    RAM is volatile type of memory, meaning data stored in it is lost when the computer is turned off.

    <p>True</p> Signup and view all the answers

    What are storage devices used for?

    <p>Storing, porting and extracting data files and objects</p> Signup and view all the answers

    What are some examples of storage devices?

    <p>All of the above</p> Signup and view all the answers

    What type of memory does a USB flash drive use?

    <p>Flash memory</p> Signup and view all the answers

    What is the smallest unit of data storage in a computer called?

    <p>BIT</p> Signup and view all the answers

    What type of port is used to connect a computer?

    <p>Serial port</p> Signup and view all the answers

    What does digital data consist of?

    <p>Representing data as 0 &amp; 1</p> Signup and view all the answers

    What is another name for the motherboard of a computer?

    <p>Motherboard</p> Signup and view all the answers

    What is the purpose of an analog to digital converter (ADC)?

    <p>Analog converted to digital watch</p> Signup and view all the answers

    What is an example of an extinct type of computer?

    <p>Analog Computer</p> Signup and view all the answers

    What is an example of special-purpose digital computers?

    <p>Digital Watch</p> Signup and view all the answers

    What type of computer can process both analog and digital signals?

    <p>Hybrid</p> Signup and view all the answers

    What type of card is used for network connections?

    <p>PC card pass</p> Signup and view all the answers

    What unit of measurement is commonly used in engineering?

    <p>Giga</p> Signup and view all the answers

    What does CMOS stand for?

    <p>Complementary metal-oxide semiconductor</p> Signup and view all the answers

    Solid-state drives (SSDs) are non-volatile storage devices.

    <p>True</p> Signup and view all the answers

    What is the maximum storage capacity of an LS-120 floppy diskette?

    <p>120MB</p> Signup and view all the answers

    What is the name of the first successful automatic calculator?

    <p>The Difference Engine was invented by Charles Babbage in 1822 and was a mechanical calculator designed to tabulate polynomial functions.</p> Signup and view all the answers

    Who is considered the "father of computing"?

    <p>Charles Babbage</p> Signup and view all the answers

    Who is known as the first computer programmer?

    <p>Ada Lovelace</p> Signup and view all the answers

    What was the first printing calculator?

    <p>Scheutzian Calculation Engine</p> Signup and view all the answers

    What was the purpose of the Tabulating Machine?

    <p>Summarizing information and accounting</p> Signup and view all the answers

    What was the first electro-mechanical computer?

    <p>Harvard Mark 1</p> Signup and view all the answers

    What was the first programmable computer?

    <p>Z1</p> Signup and view all the answers

    What was the first electronic digital computer?

    <p>Atanasoff-Berry Computer (ABC)</p> Signup and view all the answers

    What was the first electronic general-purpose computer?

    <p>ENIAC</p> Signup and view all the answers

    What was the first commercial computer?

    <p>UNIVAC 1</p> Signup and view all the answers

    What is the name of the first computer company?

    <p>Electronic Controls Company</p> Signup and view all the answers

    Study Notes

    Surge Suppressors

    • Protects computers from voltage spikes.

    Optical Drives

    • Uses lasers to read data on optical media.
    • Types: Compact Disc (CD), Digital Versatile Disc (DVD), Blu-ray Disc (BD).

    System Fans

    • Located inside the computer case, front or back.
    • Brings cool air in and expels hot air.

    Power Supply Unit (PSU)

    • Located in the back of the PC case, near the motherboard.
    • Converts AC (household power) to DC power for components.

    Random Access Memory (RAM)

    • Volatile memory; data is lost when power is off.
    • Crucial for computer speed, power, and performance.

    Storage Devices

    • Hardware for storing, transferring, and retrieving data.
    • Examples: Hard Disk, DVDs, CDs, Magnetic Tape, Flash Memory (USB).

    Flash Memory (USB)

    • Small data storage location (bit).
    • Connects to computers via serial ports.
    • Represents data as 0s and 1s.

    Motherboard

    • Known as the motherboard.

    Analog-to-Digital Converter (ADC)

    • Converts analog signals to digital signals.

    Analog Computers

    • Almost obsolete.
    • Perform mathematical operations simultaneously.
    • Different from digital computers.

    Digital Computers

    • Use digital circuits (on/off states).
    • Represent data as binary (0s and 1s).
    • Suitable for complex calculations.
    • Faster processing speeds than analog computers.

    Hybrid Computers

    • Combination of digital and analog computers.
    • Digital segments perform tasks by converting analog signals.

    Supercomputers

    • Highly powerful computers for large amounts of data and calculations.

    Personal Computers (PCs)

    • Designed for single-user use.
    • Uses a single chip (microprocessor) for CPU.
    • Includes desktop, laptop, tablet, and smartphones.

    Mainframe Computers

    • Used by large organizations for data processing.
    • Applications include bulk data processing

    Minicomputers

    • Smaller than mainframes and larger than microcomputers
    • Provide services between mainframes and microcomputers
    • Also known as mid-range systems or workstations

    Servers

    • Provide services to client machines in a computer network.
    • Have larger storage and processing power.

    Supercomputers

    • Handle intensive calculations efficiently.

    Microcomputers

    • Small computers with microprocessors.
    • Occupy less space compared to mainframes.

    Computer Display Monitors

    • Displays information (text and graphics) visually.

    Floppy Diskettes

    • Older data storage media (5.25" and 3.5").

    Compact Discs (CDs)

    • Optical storage for digital information.
    • Standard 120 mm holds about 700 MB.

    Digital Versatile Discs (DVDs)

    • Optical storage technology for high-density data.
    • Single-side, one-layered disks hold about 4.7 GB

    Jump Drives/USB Flash Drives

    • Portable storage devices using flash memory.

    Hard Drives

    • Primary data storage in most computers.

    Zip Drives

    • Portable storage for backing up and archiving data.

    Parallel Advanced Technology Attachment (PATA)

    • Older hard drive interface technology.

    Serial Advanced Technology Attachment (SATA)

    • Replaced PATA and allows faster data transfer.

    Small Computer System Interface (SCSI)

    • Another hard drive interface technology.

    Solid-State Drives (SSDs)

    • Modern storage devices using flash memory technology.
    • No moving parts.

    LS-120

    • Floppy drive supporting larger data storage than standard floppy.

    Earliest Computers

    • Humans originally performed calculations.
    • Devices enabling calculations evolved over time.
    • Examples: Tally sticks, Abacus, Napier's Bones, Slide Rule, Pascaline, etc.

    Difference Engine and Analytical Engine

    • Mechanical calculators designed by Charles Babbage.

    First Computer Programmer

    • Augusta Ada Byron, early programmer for analytical engines.

    Scheutzian Calculating Engine

    • First printing calculating engine, based on Babbage's designs

    Tabulating Machine

    • Invented by Herman Hollerith and used for summaries

    Harvard Mark 1

    • First electro-mechanical computer

    Z1

    • First programmable computer.

    Atanasoff-Berry Computer (ABC)

    • First electronic digital computing device.

    ENIAC

    • One of the first electronic general-purpose computers.

    UNIVAC 1

    • First commercial general-purpose electronic computer.

    Osborne 1

    • First portable computer.

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    Description

    Test your knowledge on various computer hardware components including surge suppressors, optical drives, system fans, and more. This quiz covers the essential functions and characteristics of each part, providing a comprehensive understanding of computer systems.

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