📚 Topic Summary
This unplugged activity simulates how Hard Disk Drives (HDDs) and Solid State Drives (SSDs) access data. HDDs use spinning disks and a moving head to read data, making access slower, especially for fragmented data. SSDs, on the other hand, use flash memory for instant access, resulting in much faster performance. We'll mimic this process using index cards and two different search methods.
Imagine a library: finding a book with the Dewey Decimal System (like an HDD) versus knowing the exact location of every book on a map (like an SSD)!
🧠 Part A: Vocabulary
Match the term with its definition:
| Term |
Definition |
| 1. HDD |
A. Memory that retains data without power |
| 2. SSD |
B. A storage device with moving parts |
| 3. Latency |
C. A collection of non-contiguous data |
| 4. Fragmentation |
D. The delay before data transfer begins |
| 5. Flash Memory |
E. A type of solid-state storage |
(Answers: 1-B, 2-E, 3-D, 4-C, 5-A)
📝 Part B: Fill in the Blanks
An HDD uses a spinning ______ and a moving ______. This makes accessing data relatively ______, especially if the data is ______ across the disk. An SSD uses ______ memory and has much ______ latency.
(Answers: disk, head, slow, fragmented, flash, lower)
🤔 Part C: Critical Thinking
Imagine you are designing a laptop. What kind of user would benefit most from having an SSD instead of an HDD and why?