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PC with Dual Disk Drives and Dual Processors for External and Internal Communication Disclosure Number: IPCOM000014726D
Original Publication Date: 2000-Dec-01
Included in the Prior Art Database: 2003-Jun-20

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In today’s personal computers (PCs), users access both external data (the Internet and external e-mail) and internal data (typically the users’ home or office applications), using a single processor and its associated hard disk drive (typically one hard disk drive in many PCs). This article describes the use of two processors and two hard disk drives in a single PC. This will reduce the risk of external computer viruses (coming through the Internet) from affecting the main hard disk drive that the users use for their internal data. In other words, by splitting the PC function into two subsystems, the user is essentially working with a firewall between internal data and those from the external world. When PC users access the Internet, many of the sites leave cookies on the hard disk drive. Again, when users receive external e-mails, some of the attached files that come with e-mails might carry viruses that tend to corrupt the hard disk drive. While cookies may not be harmful, the viruses in the attached files of some of these external e-mails could destroy the entire content of a hard disk file. Moreover, the viruses could have built in malicious applications that could re-transmit the attached files to other users, utilizing the e-mail names lists from the original user’s databases. With two separate subsystems, the PC system is essentially partitioned between the user’s internal and external worlds of information. The two subsystems have two separate processors and their associated hard disk drives. This reduces the chance of data destruction in the internal subsystem’s hard disk drive. If viruses were to repropagate, they would be restricted to the hard disk drive of the external subsystem, which would have much less critical data for the users. The user switches between the two information worlds by means of a toggle switch, as and when necessary. The basis of such a PC system would encompass the following: a main processor and its associated hard disk drive (let us call this as the internal subsystem). A similar processor and an associated hard disk drive would be available for looking at information from the external world (let us call this the external subsystem). The user switches to the external subsystem when required or when the processors alert each other about e-mail status. The internal subsystem’s processor (the main processor) might have additional functions, in case the user wants to import data from the external subsystem. The users import data from the external subsystem only after proper precautions are taken, such as: adequate aging, information and email sender recognition and anti-virus analyses. Common to both the subsystems would be the display monitor, mouse, keyboard, modem, motherboard, the system box, several software applications and other system components. The benefits of creating two subsystems within a single PC are that the same software applications can be used on both the subsystems and many of the components are common to both the subsystems. There is convenience in handling e-mails and Internet access from a single PC.