Podcast
Questions and Answers
Match the following types of secondary storage with their primary characteristics:
Match the following types of secondary storage with their primary characteristics:
HDD = Most common in desktop computers Optical Discs = Uses laser to read data Magnetic Tape = Used for backup and archiving SSD = Replaces HDD due to speed
Match the terms related to storage with their definitions:
Match the terms related to storage with their definitions:
Capacity = Maximum amount of data stored Access Speed = How quickly data can be read or edited Durable = Ability to withstand physical damage Portable = Easily transportable
Match the following storage devices with their usage:
Match the following storage devices with their usage:
USB Stick = Transport files easily Floppy Disk = Obsolete magnetic storage Memory Card = Used in cameras and smartphones External HDD = Portable storage with moving parts
Match the type of secondary storage with its speed characteristics:
Match the type of secondary storage with its speed characteristics:
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Match the following features with their respective storage types:
Match the following features with their respective storage types:
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Match the type of storage with its typical form factor:
Match the type of storage with its typical form factor:
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Match the following storage types with their advantages:
Match the following storage types with their advantages:
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Match the characteristics of secondary storage with the respective storage types:
Match the characteristics of secondary storage with the respective storage types:
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Study Notes
Secondary Storage Types
- Secondary storage is non-volatile, used for repeated data access. This storage is external to the motherboard, resulting in slower access compared to primary storage.
- Capacity refers to the maximum data storage on a device.
- Access speed is the time it takes to read/edit data.
- Magnetic Hard Disk Drives (HDDs) are common in desktops. A read/write head moves over a platter, using its magnetic field to read/write data.
- Floppy disks are obsolete magnetic storage.
- Magnetic tape offers high capacity but uses sequential access (data must be read in order). Used for backing up/archiving large data sets.
- Modern HDDs are durable and portable due to small size and protection. However, avoid movement while powered on to prevent damage.
- Optical storage (CDs, DVDs, Blu-rays) uses lasers for data access. This is the slowest type of secondary storage. Disc drives can be internal or external.
- Solid-State Drives (SSDs) are replacing HDDs in modern computers due to quiet operation, speed, and low power consumption.
- USB flash drives are small solid-state storage used for transporting files.
- Memory cards (SD, Micro SD) are another form of solid-state storage. They are portable for use in devices like digital cameras and smartphones.
- Solid-state storage generally has the highest capacity and fastest access speeds due to no moving parts.
Storage Type Comparisons
- Durability: HDDs are durable; optical storage (like CDs/DVDs) very fragile.
- Portability: Optical and SSD are portable, though SSDs tend to be more portable when small. USBs are also portable.
- Cost: Optical usually cheaper in bulk; HDD costs vary; SSD costs are generally higher.
Storage Justification for Scenarios
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Scenario a (Sending videos/pictures to Australia by post): Optical or Magnetic would be the likely solution, as cost and bulkiness matter more than access speed.
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Scenario c (Group project files): SSD or external HDD. SSDs or fast external HDDs are preferred because of rapid access for multiple users concurrently, minimizing downtime and boosting productivity. Cost and capacity might play a factor depending on file size and budget.
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Scenario d (Backing up an old computer): Magnetic Tape or HDD. Magnetic tape offers high capacity for the large file count but slower access. A large external HDD offers good capacity and reasonably fast access. Consider the need for the backup to be easily accessed versus its purely archival use.
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Description
Test your knowledge on various types of secondary storage including HDDs, SSDs, and optical drives. This quiz covers capacity, access speed, and technological advancements in storage solutions. Challenge yourself to understand the differences and applications of each storage type.
