Which of these is not a peripheral device?

Floppy Disk Drive
Hard drive
Touchscreen
Operating memory
A peripheral is "an ancillary device used to put information into and get information out of the computer". There are three different types of peripherals: input devices, which interact with or send data from the user to the computer (mice, keyboards, etc.) output devices, which provide output to the user from the computer (monitors, printers, etc.) input/output devices that perform both functions.
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Floppy Disk Drive
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Touchscreen
Operating memory
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flagthe Netherlands
6%
0%
18%
75%
16
flagAustria
14%
12%
10%
60%
56
flagFrance
20%
10%
10%
60%
10
flagPakistan
4%
16%
28%
52%
25
flagGermany
8%
13%
24%
51%
398
flagthe United Kingdom
11%
7%
31%
50%
90
flagCanada
6%
12%
31%
50%
16
flagSwitzerland
4%
20%
24%
48%
50
flagNepal
16%
0%
38%
44%
18
flagthe United States
11%
19%
27%
41%
92
flagPoland
11%
16%
34%
36%
5302
flagAustralia
5%
5%
55%
35%
40
flagIndia
16%
12%
36%
32%
327
flagRepublic of Ireland
43%
6%
18%
31%
16
flagthe Philippines
6%
27%
37%
27%
29
flagGreece
6%
31%
37%
25%
16