Storage devices
Name:
Date:
Class:
A
Quick Questions
Shade in the A or B circle for each question.
1. Which statement is true about a storage device?
2. Which one is a storage device?
3. Which storage device is small enough to carry on a keyring and plug into a USB port?
4. What does storage capacity tell you?
5. Which is true about a hard disk drive (HDD)?
B
Match the Pairs
Draw a line connecting each item on the left to its match on the right.
| Left column | Right column | |
|---|---|---|
| 1HDD | AA solid state drive that stores data on memory chips with no moving parts, and keeps it when the power is off | |
| 2SSD | BA hard disk drive that stores data on spinning magnetic disks and often has a large storage capacity | |
| 3A small, portable storage device that plugs into a USB port and keeps your files when unplugged | CA terabyte is much bigger than a gigabyte, so 1 TB has a greater storage capacity than 64 GB. | |
| 4Storage capacity is how much data a storage device can hold, measured in units like gigabytes and terabytes | DUSB flash drive | |
| 5A storage device loses all its data when the power is turned off. | EThis describes temporary memory (RAM). A storage device keeps data permanently, even when the power is off. | |
| 6A 64 GB USB flash drive can hold more data than a 1 TB hard disk drive. | F256 GB |
C
Definitions
storage device
D
Fill in the Blanks
Complete each line of code by filling in the missing parts.
1.
A ______________
keeps data when power is off.
2.
A _______________ is a small, portable store.
3.
A _______________
stores data on spinning disks.
4.
A _________________ has no moving parts.
5.
Storage ________
is how much data it can hold.
E
Spot the Error
Shade in the letter of the line that contains an error.
Question 1
A
drive = "SSD"
B
power_on = False
C
if not power_on:
D
print("Data is lost")
Question 2
A
drives = ["HDD", "SSD", "USB"]
B
for d in drives
C
print(d, "stores data")
Question 3
A
cap_gb = 256
B
used_gb = 100
C
free_gb = cap_gb + used_gb
D
print(free_gb)
Question 4
A
capacity gb = 1000
B
unit = "GB"
C
print(capacity_gb, unit)
Question 5
A
storage = "SSD"
B
if storage = "SSD":
C
print("No moving parts")
Answer Key
Storage devices
Section A: Quick Questions
Q1
B — It keeps data even when the power is off
Q2
A — Solid state drive (SSD)
Q3
A — USB flash drive
Q4
A — How much data the device can hold
Q5
B — It stores data on spinning disks inside it
Section B: Match the Pairs
Q1
HDD → A hard disk drive that stores data on spinning magnetic disks and often has a large storage capacity
Q2
SSD → A solid state drive that stores data on memory chips with no moving parts, and keeps it when the power is off
Q3
A small, portable storage device that plugs into a USB port and keeps your files when unplugged → USB flash drive
Q4
Storage capacity is how much data a storage device can hold, measured in units like gigabytes and terabytes → 256 GB
Q5
A storage device loses all its data when the power is turned off. → This describes temporary memory (RAM). A storage device keeps data permanently, even when the power is off.
Q6
A 64 GB USB flash drive can hold more data than a 1 TB hard disk drive. → A terabyte is much bigger than a gigabyte, so 1 TB has a greater storage capacity than 64 GB.
Section C: Definitions
Q1
storage device — Hardware that keeps data permanently, even when the power is off. Examples are a hard disk drive, solid state drive and USB flash drive, which differ in storage capacity.Section D: Fill in the Blanks
Q1
A storage device
keeps data when power is off.Q2
A USB flash drive is a small, portable store.Q3
A hard disk drive
stores data on spinning disks.Q4
A solid state drive has no moving parts.Q5
Storage capacity
is how much data it can hold.Section E: Spot the Error
Q1
D — A storage device keeps data even when the power is off. The message should say the data is kept, so the line should be print("Data is kept").
Q2
B — A for loop line must end with a colon. It should be for d in drives:
Q3
C — Free space is the storage capacity minus the space already used. It should use - instead of +.
Q4
A — Variable names cannot contain spaces. It should be capacity_gb = 1000 with an underscore.
Q5
B — A single = assigns a value. To compare in an if statement you need ==, so it should be if storage == "SSD":