Software, Continued
Using software
wisely
(Continued)
Software or
disk security
Security
In sea-going environments, secure computer hardware to desks or
tabletops to prevent damage from heavy rolls and pitching during high sea
states.’ Excessive movement of CPUs may cause Video Graphics Array
(VGA) cards and SVGA (Super Video Graphics Array) cards to loosen
causing the color balance of monitors to shift or blink erratically.
A drop
from a height of approximately 3 feet (desk height) may cause substantial
and irreparable damage to hardware.
Keep liquids and foodstuffs away from computer equipment. Place drinks
and food below the keyboard or on another surface to prevent accidental
spills and debris from ruining equipment.
Often the data on disks is classified or sensitive to national security.
Graphics and text created electronically and stored on disks require
protection. The procedures for protecting and marking disks, disks drives,
and work stations differ slightly from the procedures for marking graphics,
photographs, and documents. Security procedures for electronic data are
found in the Department of the Navy, Automated Data Processing Security
Manual, OPNAVINST 5239.1.
The three levels of data processed electronically are Level I, Level II, and
Level III. If your command processes Level I and/or Level II data, it must
provide a specific degree of protection. The following table defines the 3
levels of data:
Level
Meaning
Level I
Classified; Confidential, Secret, and Top Secret
Level II
Unclassified; requires special protection, such as For
Official Use Only and data covered by the Privacy
Act of 1974
Level III
Unclassified
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