(12) United States Patent
`Policard
`
`US006578140B1
`(10) Patent No.:
`US 6,578,140 B1
`(45) Date of Patent:
`Jun. 10, 2003
`
`(54) PERSONAL COMPUTER HAVING A
`MASTER COMPUTER SYSTEM AND AN
`INTERNET COMPUTER SYSTEM AND
`MONITORING A CONDITION OF SAID
`MASTER AND INTERNET COMPUTER
`SYSTEMS
`
`7/1996 Blitz et al.
`5.535,399 A
`5,550,984 A * 8/1996 Gelb .......................... 709/245
`5,608,884 A * 3/1997 Potter ......................... 710/124
`5,680,536 A * 10/1997 Tyuluman ...................... 714/1
`5,802,297 A 9/1998 Engpuist
`5,812,748 A 9/1998 Ohran et al.
`5,848,230 A 12/1998 Walker
`(76) Inventor: Claude M Policard, 92-16 Whitney ; º : 3.1999 Mason et al. ............... 713/159
`2- - - 2
`/2000 Weber ........................... 713/1
`Ave., apt. #211, Elmont, NY (US)
`6,167,428 A * 12/2000 Ellis ........................... 709/201
`11373
`6,272,533 B1 * 8/2001 Browne ...................... 709/213
`
`(*) Notice:
`
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 0 days.
`
`FOREIGN PATENT DOCUMENTS
`
`WO
`
`WO 00/63778
`
`* 10/2000
`
`21) Appl. No.: 09/548,824
`pp
`(22) Filed:
`Apr. 13, 2000
`(51) Int. Cl." ......................... G06F 12/14, G06F 1130.
`G06F 15/177
`/
`(52) U.S. Cl. ........................... 713/1; 713/200; 709/224;
`710/62
`(58) Field of Search ................................ 713/1, 2, 200,
`713/201; 714/1, 2, 6, 8, 10, 11; 700/2–4;
`709/208, 223, 224; 710/62, 8, 10
`
`(56)
`
`References Cited
`U.S. PATENT DOCUMENTS
`4,747,040 A 5/1988 Blanset
`
`* cited by examiner
`y
`
`Primary Examiner—leffrey Gaffin
`Assistant Examiner—Ilwoo Park
`(74) Attorney, Agent, or Firm—Michael I. Kroll
`(57)
`ABSTRACT
`
`The invention is desktop computers sharing components and
`having divergent operating systems, hard drive(s) and
`memory for the expressed purpose of segregating the day to
`day data processing functions and files from access to the
`Internet and downloading information and e-mail therefrom.
`
`11 Claims, 5 Drawing Sheets
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`==Hirº HARDDRVE
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`HARD DRIVE
`
`KEYBOARD
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`
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`MONITOR
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`HARD DRIVE
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`Google - Exhibit 1006, page 1
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`Google - Exhibit 1006, page 1
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`

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`U.S. Patent
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`Jun. 10, 2003
`
`Sheet 1 of 5
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`US 6,578,140 B1
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`PRIOR ART
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`Google - Exhibit 1006, page 2
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`Google - Exhibit 1006, page 2
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`

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`U.S. Patent
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`Jun. 10, 2003
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`Sheet 2 of 5
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`US 6,578,140 B1
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`Google - Exhibit 1006, page 3
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`

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`U.S. Patent
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`Jun. 10, 2003
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`Sheet 3 of 5
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`US 6,578,140 B1
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`18
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`Google - Exhibit 1006, page 4
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`Google - Exhibit 1006, page 4
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`

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`U.S. Patent
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`Jun. 10, 2003
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`Sheet 4 of 5
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`US 6,578,140 B1
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`Google - Exhibit 1006, page 6
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`

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`US 6,578,140 B1
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`1
`PERSONAL COMPUTER HAVING A
`MASTER COMPUTER SYSTEM AND AN
`INTERNET COMPUTER SYSTEM AND
`MONITORING A CONDITION OF SAID
`MASTER AND INTERNET COMPUTER
`SYSTEMS
`
`BACKGROUND OF THE INVENTION
`
`1. Field of the Invention
`The present invention relates generally to desktop com
`puters and, more specifically, to desktop computers sharing
`components and having divergent operating systems, hard
`drive(s) and memory for the expressed purpose of segregat
`ing the day to day data processing functions and files from
`access to the Internet and downloading information and
`e-mail therefrom.
`It is the scope of the present invention to incorporate the
`advantages of two systems without having two desktop
`computers. The desktop computer referred to in this appli
`cation would be a computer having a case, power supply,
`motherboard, disk drive, disk drive interface, monitor, key
`board and can additionally include mouse, printer and
`cd-rom like devices.
`2. Description of the Prior Art
`There are other electronic device designed for segregated
`or backup data processing. Typical of these is U.S. Pat. No.
`4,747,040 issued to Blanset on May 24, 1988.
`Another patent was issued to Blitz et al. on Jul. 9, 1996
`as U.S. Pat. No. 5,535,399. Yet another U.S. Pat. No.
`5,802,297 was issued to Engquist on Sep. 1, 1998. Another
`patent was issued to Ohran et al. on Sep. 22, 1998 as U.S.
`Pat. No. 5,812,748 and still yet another was issued on Dec.
`8, 1999 to Walker as U.S. Pat. No. 5,848,230.
`
`10
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`U.S. Pat. No. 5,535,399
`
`Inventor: Martin C. Blitz et al.
`
`Issued: Jul. 9, 1996
`Disclosed is a solid state disk drive, including a volatile,
`electronic RAM, memory and a non volatile, magnetic disk.
`The drive continuously saves unique data stored in the
`memory back to the disk. Additionally, the drive includes a
`number of tables and bit fields, in both volatile electronic
`memory and disk, for generally keeping track of what data
`has been restored from disk to memory, what data in the
`memory has been modified since it was restored from disk,
`and what modified data in the memory has been saved back
`to disk. In the event of a primary power outage, the drive first
`saves the volatile tables onto disk, and then saves the
`volatile, modified data onto disk, while using auxiliary
`power. If, however, auxiliary power is lost before any or all
`of the modified data is saved on disk, the saved tables
`provide information which enables the drive to distinguish
`the valid from the invalid data on disk.
`
`U.S. Pat. No. 4,747,040
`
`Inventor: David R. Blanset
`
`Issued: May 24, 1988
`The UNIX.RTM. and MS-DOS.RTM. operating systems
`are supported in a multi-tasking computer. At the heart of the
`computer is a microprocessor having protected and non
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`protected modes. The computer includes special-purpose
`hardware which prevents the MS-DOS system and its
`applications, which execute in the non-protected mode, from
`interfering with the UNIX system and its applications,
`which execute in the protected mode. In particular, this
`hardware monitors addresses generated by the computer
`and, by selectively inhibiting the associated control pulses,
`prevents the MS-DOS system from, for example, writing in
`UNIX-system-allocated memory, or accessing I/O devices
`that the UNIX system is currently using. In addition, a
`context switching feature is provided whereby the user can
`select, via a keyboard operation, to have displayed on the
`computer video monitor at any given time the image gen
`erated from the current UNIX system screen data or the
`image generated from the current MS-DOS system screen
`data.
`
`U.S. Pat. No. 5,802,297
`Inventor: James D. Engquist
`Issued: Sep. 1, 1998
`A cache only client-server configuration which provides
`the performance benefits of “dataless” client operation with
`the administrative efficiencies of a “diskless” client-server
`configuration. Utilizing cache only clients, the performance
`of stand-alone systems can be approximated utilizing a
`relatively small disk drive as a local data cache. The cache
`only clients may be considered as interchangeable units in
`that they hold no critical data and any data held on the local
`disk is a “clone” of the master copy held on the server.
`System configuration, administration and maintenance costs
`are dramatically reduced since software installation, distri
`bution and backup may be managed at the server.
`U.S. Pat. No. 5,812,748
`Inventor: Richard S. Ohran
`Issued: Sep. 22, 1998
`A method for providing rapid recovery from a network
`file server failure through the use of a backup computer
`system. The backup computer system runs a special mass
`storage access program that communicates with a mass
`storage emulator program on the network file server, making
`the disks (or other mass storage devices) on the backup
`computer system appear like they were disks on the file
`server computer. By mirroring data by writing to both the
`mass storage of the file server and through the mass storage
`emulator and mass storage access program to the disks on
`the backup computer, a copy of the data on the file server
`computer is made. Optionally, selected portions of the data
`read through the mass storage emulator program can be
`altered before being returned as the result of the read
`operation on the file server. In the event of failure of the file
`server computer, the backup computer can replace the file
`server, using the copy of the file server’s data stored on its
`disks. A single backup computer can support a plurality of
`file server computers. Unlike other redundant file server
`configurations, this method does not require the backup
`computer system to be running the file server operating
`system.
`
`U.S. Pat. No. 5,848,230
`Inventor: Mark S. Walker
`Issued: Dec. 8, 1998
`A highly reliable computer memory storage system that is
`divided into subsystems, each of which is provided in
`
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`US 6,578,140 B1
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`3
`triplicate: a primary subsystem, a backup subsystem and a
`spare subsystem. Upon detection of a non-recoverable fail
`ure in a primary subsystem, the backup subsystem substan
`tially immediately assumes the tasks of the primary sub
`system while the spare subsystem is integrated into the
`operation of the computer memory storage system. The
`triple replication of all subsystems and mechanisms for
`detecting failures in at least the primary and secondary
`subsystems provides an overall memory system which is
`highly reliable and substantially never requires servicing. In
`an alternative embodiment, three subsystems can share a
`load equally, for example a cooling or power supply load
`requirement. Upon failure, of any one or two of such three
`redundant subsystems, the remaining subsystems(s) is built
`with sufficent extra capacity that remaining subsystem(s)
`can still supply the total power or cooling requirements of
`the system.
`While these electronic devices may be suitable for the
`purposes for which they were designed, they would not be
`as suitable for the purposes of the present invention, as
`hereinafter described.
`SUMMARY OF THE PRESENT INVENTION
`With the advent of computers, data processing such as
`word processing, spreadsheets and graphic design were the
`mainstay of personal computer manufacturers and impetus
`for many people to invest in a PC. These machines proved
`to be more than adequate for these tasks and software
`developers were encouraged to expand the software capa
`bilities of the personal computer, which was done with the
`addition of personal finance, interior design, landscaping
`and personal correspondence software, to name a few. All of
`this development was centered around faster processors,
`more disk space and bigger monitors.
`With the advent of the Internet, the personal computer has
`transcended well beyond our wildest dreams. To the point
`that the government levies taxes on communications to
`provide Internet access to every public institution.
`While the Internet is truly remarkable and for good or bad
`has become firmly intrenched in our culture, it has given rise
`to a subculture which expends a great effort in generating
`snippets of code, which when download into a personal
`computer can cause great harm to the contents therein. The
`present paranoia over the mischievous to malicious
`software, commonly referred to as computer virus, while
`effecting a relative small number of computers, has caused
`a regression in the exchange of information.
`With the advent of e-mail this paranoia, either real or
`imagined, has reached pandemic proportion with the result
`that users are continuously warned to delete e-mail if they
`don’t recognize the sender.
`The problem is simply stated. Computers have become an
`integral part of our culture. More and more personal infor
`mation is being committed within the typical household to
`electronic recording. Banking is online, motor vehicle reg
`istrations and license renewal is online, tax filing is online,
`college registration is online, shopping is online, etc. The
`need to secure and protect this information is obvious. It is
`also obvious that e-mail is here to stay and so are those users
`who generate virus software.
`Although there are many organization that make a valiant
`effort to identify and remove the virus code, it is too late for
`those original victims.
`Therefore, it is felt that there is a need to design a single
`desktop computer which segregates the data processing
`functions of the computer from the Internet function of the
`computer.
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`The present invention overcomes the aforementioned
`shortcomings of the personal computer by segregating Inter
`net functions to separate internal devices that are normally
`written to and are subject to malicious code.
`During the normal startup of a computer the bios is loaded
`into memory which then retrieves the system configuration
`and operating system from the hard drive which permits user
`to execute application software and establish communica
`tions with other computers through their Internet service
`provider.
`The present invention provides two hard drives having
`two operating systems having segregated process and
`memory access, permitting users to toggle between these
`systems.
`One system having Internet access having its own oper
`ating system, processor, memory and hard drive would share
`the computer components which can not be effect by mali
`cious software, such as, the motherboard, drive controller,
`video card, monitor, keyboard, mouse, printers, scanners,
`etc.
`The toggling between the two systems can be accom
`plished by a switch which can be incorporated into the PC
`case or by a third microprocessor using some keyboard key
`sequencing to switch between the systems.
`The advantage of a third microprocessor with appropriate
`software is that it would monitor the state of both operating
`system. So that, if one crashed due to an application software
`bug, or a computer virus it would not effect the other because
`the other system’s basic instruction set and stack would still
`be intact. Also, the third microprocessors software could
`reboot the affect system.
`A primary object of the present invention is to provide a
`desktop computer having appropriate hardware and software
`to segregate application data processing from Internet com
`munication functions.
`Another object of the present invention is to provide a
`desktop computer which will boot two segregated operating
`systems.
`Yet another object of the present invention is to provide a
`desktop computer having a microprocessor dedicated to
`each operating system.
`Still yet another object of the present invention is to
`provide a desktop computer having dedicated memory for
`each operating system.
`Another object of the present invention is to have one or
`more dedicated hard drives for each operating system.
`Yet another object of the present invention is to provide a
`desktop computer having switch means for designating
`which operating system has control over system resources.
`Still yet another object of the present invention is to
`provide a desktop computer having a third microprocessor
`with applicable software for controlling and monitoring the
`function of each operating system microprocessor.
`Another object of the present invention is to provide a
`desktop computer having a KVM switch providing means
`for both operating system to share a common keyboard,
`video display device, and mouse pointing device.
`Yet another object of the present invention is to provide a
`desktop computer having selective data transfer means for
`exchanging data between operating systems.
`Still yet another object of the present invention is to
`provide a desktop computer which will enhance the world
`wide exchange of data by reducing the impact of virus
`software on data processing applications.
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`Google - Exhibit 1006, page 8
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`Google - Exhibit 1006, page 8
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`Additional objects of the present invention will appear as
`the description proceeds.
`The present invention overcomes the shortcomings of the
`prior art by providing a desktop computer having appropri
`ate hardware and software to segregate application data
`processing from Internet communication functions.
`The data processing system will boot two segregated
`operating systems each having a dedicated microprocessor,
`dedicated memory and one or more dedicated hard drives for
`each operating system. Also, the desktop computer has a
`10
`KVM switch whereby both operating systems share a com
`mon keyboard, video display device, and mouse pointing
`device.
`Further, the desktop computer provides a switch for
`designating which operating system has control over system
`?eSOUITCeS.
`Additionally, the desktop computer has a third micropro
`cessor with applicable software for controlling and moni
`toring the function of each of the operating system and
`selective data transfer means for exchanging data between
`operating systems.
`Still further, the desktop computer of the present inven
`tion will protect and preserve the privacy of personal com
`puter users by removing sensitive information from Internet
`25
`accessible areas of the computer and relegate the impact of
`malicious virus code to expendable data areas of the com
`puter.
`The foregoing and other objects and advantages will
`appear from the description to follow. In the description
`reference is made to the accompanying drawing, which
`forms a part hereof, and in which is shown by way of
`illustration specific embodiments in which the invention
`may be practiced. These embodiments will be described in
`sufficient detail to enable those skilled in the art to practice
`the invention, and it is to be understood that other embodi
`ments may be utilized and that structural changes may be
`made without departing from the scope of the invention. In
`the accompanying drawing, like reference characters desig
`nate the same or similar parts throughout the several views.
`The following detailed description is, therefore, not to be
`taken in a limiting sense, and the scope of the present
`invention is best defined by the appended claims.
`LIST OF REFERENCE NUMERALS UTILIZED
`IN THE DRAWINGS
`10 dual segregated operating system computer
`12 first system board
`14 second system board
`16 mouse
`18 monitor
`20 keyboard
`22 first single processor computer
`24 second single processor computer
`26 first case
`28 second case
`30 first processor system
`32 second processor system
`34 first cpu
`36 first bios
`38 first memory
`40 static memory
`42 isa, vlb, eisa, pci board slots
`44 interprocessor bus
`46 first disk drive
`48 second disk drive
`50 modem
`
`52 second cpu
`54 second bios
`56 second memory
`58 kVm switch
`60 operating system
`62 third microprocessor
`BRIEF DESCRIPTION OF THE DRAWING
`FIGURES
`In order that the invention may be more fully understood,
`it will now be described, by way of example, with reference
`to the accompanying drawing in which:
`FIG. 1 is an illustrative view of a desktop computer of the
`prior art.
`FIG. 2 is an illustrative view of the prior art showing dual
`desktop computers.
`FIG. 3 is an illustrative view of the present invention.
`FIG. 4 is a diagrammatic view of one possible implemen
`tation of the present invention.
`FIG. 5 is a block diagram showing the components of the
`Internet operating system. It should be noted that virus
`detection software could be resident with said system.
`DETAILED DESCRIPTION OF THE
`PREFERRED EMBODIMENT
`Turning now descriptively to the drawings in which
`similar reference characters denote similar elements
`throughout the drawing figures. FIG. 1 through FIG. 5
`illustrate the dual segregated operating system of the present
`invention indicated generally by the numeral 10.
`Referring to FIG. 1, the single processor unit (22) of the
`prior art, having a monitor (18), keyboard (20) and, mouse
`(16) is commonly referred to as a personal computer and has
`typically a single microprocessor having a single operating
`system that loads a kernel of basic instruction in memory.
`The operating system uses the system resources to execute
`application software. Any e-mail which is read is loaded into
`memory or onto the disk drive. Once loaded into the system,
`unless identifiable by a virus detection program, the e-mail
`virus (52) is difficult to eliminate except by experienced
`systems personnel;
`Referring to FIG. 2, the personal computer, as shown in
`FIG. 1 is typically comprised of a single processor unit (22),
`having a monitor (18), keyboard (20) and, mouse (16). One
`possible solution to prevent the e-mail virus (52) for destroy
`ing or disclosing confidential information unrelated to
`e-mail is to purchase a separate personal computer. The
`second single processor computer (24), could also have a
`redundant monitor (18), keyboard (20) and mouse (16).
`While this does work, it is cost prohibitive for most users;
`Referring to FIG. 3, shows the personal computer of the
`present invention (10) having a single case housing a master
`computer system (32), and an Internet computer system (30)
`sharing a single monitor (18), single keyboard (20) and a
`single mouse (16). Since the separate internal system have
`their own operating system, the e-mail virus (52) would have
`no effect on the master computer system (32).
`Referring to FIG. 4, shows the segregated system (10) of
`the present invention. A first processor system (30) has a first
`system board (12), first cpu (34) and first bios (36) which
`will be used as startup means for retrieving the operating
`system from a first disk drive (46). The first processor has
`one or more first memory chip(s) (38) and can additionally
`have it own static ram (40) and controller board slots for
`ISA, VLB, EISA, or PCI devices (42). A second processor
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`system (32) has a second system board (14), second CPU
`(52) and second bios (54) which will be used as startup
`means for retrieving the operating system from a second
`disk drive (48). The second processor has one or more
`memory chip(s) (56) and can additionally have it’s own
`static ram (40) and controller board slots for ISA, VLB,
`EISA, or PCI devices (42). There is also shown an inter
`processor bus (44).
`Both of the processor systems (30, 32) share a modem
`(50). In addition the processors share monitor (18), keyboard
`(20) and mouse (16) by means of KVM switch circuit (58).
`This configuration will allow for segregation of application
`data processing from Internet communication functions. The
`system will boot two segregated operating systems each
`having a dedicated microprocessor, dedicated memory and
`one or more dedicated hard drives for each operating system.
`Referring to FIG. 5, the first computer system (30) has a
`modem (50) for connection to the Internet. The system
`further has a first memory (38) and first disk drive (46) and
`first microprocessor (34). The operating system (60) of the
`first processor system (30) has control of the dual processor
`system (10) while said first processor system (30) is brows
`ing the Internet. Should the anti-virus software encounter an
`unknown virus, then the first cpu (34) and/or first memory
`(38) and/or first disk drive (46) will segregate the virus from
`infecting the second processor system (32).
`In addition, a third microprocessor (62) could be incor
`porated into the dual segregated operating system computer
`to monitor the condition of both the first processor system
`(30) and second processor system (32).
`What is claimed is new and desired to be protected by
`Letters Patent is set forth in the appended claims:
`1. A dual processing system made up of a master com
`puter system and an internet computer system within a
`35
`single personal computer for segregating applications soft
`ware from e-mail and internet downloaded files, the system
`comprising:
`a) means for storing a first bios and a first operating
`system in said master computer system;
`b) means in said personal computer for executing said first
`bios and said first operating system;
`c) means for storing a second bios and a second operating
`system in said internet computer system;
`d) means in said personal computer for executing said
`second bios and said second operating system, said
`means for storing and executing said first bios and first
`operating system being segregated from said means for
`storing and executing said second bios and second
`operating system to prevent contamination of applica
`tions software in said master computer system by a
`computer virus downloaded from the internet by said
`internet computer system;
`e) a single monitor, a keyboard and a mouse for use with
`both of said master and internet computer systems;
`f) means for toggling between the segregated master and
`internet computer systems comprising a KVM switch
`circuit; and
`g) means for monitoring a condition of said master and
`internet computer systems.
`
`8
`2. The system of claim 1, wherein said means for storing
`a first bios includes a first bios chip.
`3. The system of claim 2, wherein said means for execut
`ing a first bios includes a first cpu.
`4. The system of claim 3, wherein said means for storing
`a second bios includes a second bios chip.
`5. The system of claim 4, wherein said means for execut
`ing a second bios includes a second cpu.
`6. The system of claim 5, wherein said means for storing
`a first operating system includes a first disk drive.
`7. The system of claim 6, wherein said means for execut
`ing a first operating system includes a first cpu.
`8. The system of claim 7, wherein said means for storing
`a second operating system includes a second disk drive.
`9. The system of claim 8, wherein said means for execut
`ing a second operating system includes a second cpu.
`10. A personal computer containing a dual processing
`system for segregating applications software from e-mail
`and internet downloaded files comprising:
`a) a single case housing segregated master and internet
`computer systems, said systems being segregated to
`prevent contamination of applications software by a
`computer virus downloaded from the internet;
`b) said master computer system for processing and
`executing applications software comprising means for
`storing and executing a first bios, and means for storing
`and executing a first operating system including a
`dedicated microprocessor, memory and hard drive;
`c) said Internet computer system for downloading and
`processing files from the internet comprising means for
`storing and executing a second bios, and means for
`storing and executing a second operating system
`including a dedicated microprocessor, memory and
`hard drive; monitor, a keyboard and a mouse;
`e) means for toggling between the segregated master and
`internet computer systems comprising a KVM switch
`circuit; and
`f) means for monitoring a condition of said master and
`internet computer systems.
`11. A method of preventing contamination of applications
`software by a computer virus from e-mail and internet
`downloaded files comprising the steps of:
`a) combining in said personal computer segregated master
`and internet computer systems, said master computer
`system comprising a first CPU, a first BIOS, a first hard
`drive and a first operating system, said internet com
`puter system comprising a second CPU, a second
`BIOS, a second hard drive and a second operating
`system;
`b) connecting a monitor, a keyboard and a mouse for use
`with both of said master and internet computer systems;
`c) toggling between said master and internet computer
`systems using a KVM switch circuit for preventing the
`contamination of application software by a computer
`virus downloaded from the internet by said internet
`computer system; and
`d) monitoring by a third CPU a condition of said master
`and internet computer systems.
`
`Google - Exhibit 1006, page 10
`
`Google - Exhibit 1006, page 10