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 (A)</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 (E)</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 (A)</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

Flashcards

Surge Suppressor

A device that protects computers from voltage spikes.

Optical Drive

A storage device using lasers to read data on optical media (CDs, DVDs, Blu-rays).

System Fan

A fan inside a computer that moves air to cool components.

Power Supply Unit (PSU)

Converts AC power to DC power for computer components.

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RAM

Volatile computer memory that stores data while the computer is on.

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Storage Devices

Hardware used to store and access data.

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Hard Disk

A common storage device for computers.

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USB Flash Drive

A portable storage device using flash memory.

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Bit

The smallest unit of data in a computer.

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Serial Port

A port used to connect devices to a computer.

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Analog Computer

A type of computer that uses continuously varying physical quantities to represent data.

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Digital Computer

A type of computer that uses discrete values such as "0" and "1" to represent data.

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Hybrid Computer

A computer that combines the features of both analog and digital computers.

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Supercomputer

A very fast and powerful computer capable of dealing with massive amounts of data and advanced computations.

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Personal Computer (PC)

A general-purpose computer intended for individual use.

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Mainframe Computer

A large, powerful computer designed for large organizations and bulk data processing.

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Minicomputer

A mid-range computer, in between mainframes and microcomputers in terms of size and processing power.

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Server

A computer that provides services to other computers on a network.

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Microcomputer

A small computer with a microprocessor.

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Motherboard

The main circuit board of a computer.

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CD

Compact Disc, a type of optical storage.

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DVD

Digital Versatile Disc, a type of optical storage.

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Analog-to-digital converter (ADC)

A device that converts analog signals into digital signals.

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Computer Display Monitor

A device that displays information visually in text and graphics.

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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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