1. 
   Ed Virus
   The Ed Virus is a computer virus which infects .COM and .EXE files including COMMAND.COM. The virus is loaded into memory by executing an infected program and then affects the computer's runtime operation and corrupts program or overlay files and data files.
   Found op http://www.probertencyclopaedia.com/L3A.HTM
   
   
2. 
   Edcl Virus
   The Edcl Virus is a computer virus which infects .COM and .EXE files including COMMAND.COM. The virus is loaded into memory by executing an infected program. The virus corrupts program or overlay files and data files.
   Found op http://www.probertencyclopaedia.com/L3A.HTM
   
   
3. 
   Edv Virus
   The EDV Virus is a computer virus which uses stealth techniques to avoid detection and which infects the fixed disk partition table. The virus is loaded into memory by booting from an infected disk and then affects the computer's runtime operation.
   Found op http://www.probertencyclopaedia.com/L3A.HTM
   
   

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