Both SRAM and DRAM are classified as volatile because:
Anonymous Quiz
0%
They are expensive
5%
They are slow
80%
They lose data when power is removed
15%
They are used only in cache
PROM differs from ROM because PROM:
Anonymous Quiz
10%
Can be rewritten many times
86%
Can be written only once by the user
0%
Is volatile
5%
Requires refresh
Which memory type can be erased using ultraviolet light?
Anonymous Quiz
8%
PROM
21%
EEPROM
46%
EPROM
25%
Flash Memory
EEPROM allows data to be written without erasing previous contents.
Anonymous Quiz
75%
True
25%
False
❤1
Which part of a magnetic disk directly determines storage capacity?
Anonymous Quiz
5%
Arm
25%
Head
70%
Number of platters and surfaces
0%
Spindle
Why must the read/write head be extremely close to the disk surface?
Anonymous Quiz
5%
To reduce heat
33%
To increase rotation speed
57%
To support narrower tracks
5%
To touch the disk
One benefit of using glass platters is:
Anonymous Quiz
5%
Lower cost
50%
Better stiffness
36%
Higher power consumption
9%
Larger gaps
A disk consists of platters, and each platter has:
Anonymous Quiz
5%
One surface
74%
Two surfaces
16%
Three surfaces
5%
No surface
Concentric rings on a disk surface are called:
Anonymous Quiz
18%
Sectors
6%
Gaps
65%
Tracks
12%
Arms
The disk surface spins at:
Anonymous Quiz
18%
Variable speed
76%
Fixed rotational rate
6%
Random speed
0%
Zero speed
In a fixed-head disk, there is:
Anonymous Quiz
25%
One head per surface
50%
One head per track
19%
One head per platter
6%
No read/write head
Double-sided disks:
Anonymous Quiz
11%
Store data on one side only
83%
Store data on both sides of the platter
6%
Reduce storage capacity
0%
Are slower
Winchester technology is characterized by:
Anonymous Quiz
11%
Contact heads
17%
Open disk assemblies
67%
Sealed drive assemblies
6%
Optical storage
SSDs have the advantage of:
Anonymous Quiz
11%
Higher latency
39%
Moving mechanical parts
44%
Lower access time
6%
Higher noise
👎1
Optical memory uses:
Anonymous Quiz
28%
Magnetic coating
28%
Electrical charges
33%
Laser technology
11%
Flip-flops
Dynamic RAM (DRAM) stores data as:
Anonymous Quiz
16%
Magnetic fields
79%
Electrical charge on capacitors
5%
Flip-flop circuits
0%
Laser pulses
Each DRAM cell stores:
Anonymous Quiz
11%
One byte using flip-flops
84%
One bit using a capacitor and a transistor
0%
One word using six transistors
5%
Two bits using resistors
SRAM will hold its data:
Anonymous Quiz
5%
Only when refreshed
0%
Without power
95%
As long as power is supplied
0%
For a fixed time