Granted Patent B2

US 6,986,033 · App. 10/241,809 · Granted Jan 10, 2006

Abstract

Claims (48)

1. A method comprising

copying information stored in a physical medium of a computer system to an electronic file;

storing the electronic file in random access memory of the computer system;

changing one or more characteristics in the computer system so that a process executing in the computer system is provided with data from the stored electronic file when an access to a physical device is attempted;

using the computer system for executing at least a portion of the information in the random access memory;

modifying a vector in the computer system so that an access to a disk drive results in an access to at least a portion of the information in the random access memory; and

modifying the contents of a vector location to point to at least a portion of the information in the random access memory.

2. The method of claim 1 , wherein the vector location is vector location 0x13.

3. The method of claim 2 , wherein the vector location 0x13 contains the location of at least a portion of the information in the random access memory.

4. The method of claim 2 , wherein the vector location 0x13 indirectly points to the at least a portion of the information in the random access memory via one or more intermediary data structures or instructions.

5. The method of claim 2 , further comprising:

modifying the contents of vector location 0x11 to simulate one or more disk drives.

6. An apparatus comprising:

a physical medium;

a random access memory;

a computer system, comprising the physical medium and the random access memory; and

instructions stored within the computer system, the instructions configured to cause said computer to

copy information stored in the physical medium to an electronic file,

store the electronic file in the random access memory,

change one or more characteristics in the computer system so that a process executing in the computer system is provided with data from the stored electronic file when an access to a physical device is attempted,

use the computer system for executing at least a portion of the information in the random access memory,

modify a vector in the computer system so that an access to a disk drive results in an access to at least a portion of the information in the random access memory, and

modify the contents of a vector location to point to at least a portion of the information in the random access memory.

7. The method of claim 6 , wherein the vector location is vector location 0x13.

8. The method of claim 7 , wherein the vector location 0x13 contains the location of at least a portion of the information in the random access memory.

9. The method of claim 7 , wherein the vector location 0x13 indirectly points to the at least a portion of the information in the random access memory via one or more intermediary data structures or instructions.

10. The method of claim 7 , further comprising:

modifying the contents of vector location 0x11 to simulate one or more disk drives.

11. A computer program product comprising:

a first set of instructions, executable on a computer system, configured to copy information stored in a physical medium of a computer system to an electronic file;

a second set of instructions, executable on a computer system, configured to store the electronic file in random access memory of the computer system;

a third set of instructions, executable on a computer system, configured to change one or more characteristics in the computer system so that a process executing in the computer system is provided with data from the stored electronic file when an access to a physical device is attempted;

a fourth set of instructions, executable on a computer system, configured to use the computer system for executing at least a portion of the information in the random access memory;

a fifth set of instructions, executable on a computer system, configured to modify a vector in the computer system so that an access to a disk drive results in an access to at least a portion of the information in the random access memory;

a sixth set of instructions, executable on a computer system, configured to modify the contents of a vector location to point to at least a portion of the information in the random access memory; and

computer readable media, wherein said computer program product is encoded in said computer readable media.

12. The computer program product of claim 11 , wherein the vector location is vector location 0x13.

13. The computer program product of claim 12 , wherein the vector location 0x13 contains the location of at least a portion of the information in the random access memory.

14. The computer program product of claim 12 , wherein the vector location 0x13 indirectly points to the at least a portion of the information in the random access memory via one or more intermediary data structures or instructions.

15. The computer program product of claim 12 , further comprising

a seventh set of instructions, executable on a computer system, configured to modify the contents of vector location 0x11 to simulate one or more disk drives.

16. An apparatus comprising:

means for copying information stored in a physical medium of a computer system to an electronic file;

means for storing the electronic file in random access memory of the computer system;

means for changing one or more characteristics in the computer system so that a process executing in the computer system is provided with data from the stored electronic file when an access to a physical device is attempted;

means for using the computer system for executing at least a portion of the information in the random access memory;

means for modifying a vector in the computer system so that an access to a disk drive results in an access to at least a portion of the information in the random access memory; and

means for modifying the contents of a vector location to point to at least a portion of the information in the random access memory.

Assignments (13)