Data processing: financial – business practice – management – or co – For cost/price
Reexamination Certificate
2000-08-24
2002-06-25
Cosimano, Edward R. (Department: 2161)
Data processing: financial, business practice, management, or co
For cost/price
C705S030000, C705S034000
Reexamination Certificate
active
06411943
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to on-line services for computer users. More specifically, it provides an on-line service that supplies automated information processing services to computer users for a fee. The present invention more particularly relates to an on-line service that allows remote computer users to connect on-line to computer devices (e.g., “virtual” disks) and access them to do such things as run computer software from them.
BACKGROUND AND SUMMARY OF THE INVENTION
It is common for computer users to connect to a large mainframe computer to get computer services. The user has a “dumb” terminal (a keyboard and a display but no processor “brain”) connect to the mainframe computer over a telephone line. The user's “dumb terminal” calls up the mainframe and establishes an on-line connection. The mainframe does all the computer processing, and sends the results down the telephone line for display on the user's display. The user is often charged a fee based on the amount of time he is connected to the mainframe.
Many people now have personal computers in their homes and businesses. These “stand-alone” personal computers have taken over the marketplace, and now most computing is done locally within the box that sits in front of the user. This is possible because these personal computers are self-contained units that have their own powerful internal processor “brain,” memory and mass storage. Since they can do most computing locally, most computing tasks can be carried out without connecting to another computer over a telephone line.
Even though most computing can be done locally on a personal computer, there is often a need to share information between computers. For example, one computer user may wish to send an electronic mail message (“Email”) to another computer user. Similarly, a computer user may want to retrieve a file he (or someone else) previously stored on another computer.
The simplest way to transfer information between computers is to have one of the computers write the information onto a storage device (e.g., a floppy diskette or magnetic tape). This storage device is then physically carried to the other computer, which reads the information. While this approach is simple and low in cost, it is often inconvenient to carry or send a physical storage device to the computer that wants to read the information. In addition, it may take too long to physically move the storage device (e.g., suppose that the two computers are in different states or even in different countries).
Because computer users often demand instantaneous sharing of computer information and cannot wait for someone to send them a floppy disk containing the information, various “on-line” personal computer connections have become popular. The computer user can connect a “modem” (a kind of data transmitter and receiver) between his computer and his telephone line. The computer controls the modem to automatically call the telephone number of another computer, which also has a similar modem connected between it and the telephone line. The two computers can “talk” to one another over the telephone line, and can exchange all sorts of information such as files, Email, and computer programs.
An entire industry of “information providers” (also referred to as “on-line services”) has been created to support the need for computers to share information. These information providers automatically answer telephone calls placed by user's computers, automatically respond to information requests, and provide the information over the telephone line to the calling computer. Compuserve, Prodigy and America On-line are all examples of information providers. A computer user can use these on-line services to do useful things such as place a computer want ad, read electronic mail messages, download a new video game program, scan the news wires, get a stock quote, and conference with other computer users about his favorite hobby. The information providers require the user to pay a fee each month. This fee can be a flat, unlimited use fee, or it can be based on the amount of connection time. The user's credit card number is often on record, and his credit card is automatically charged every month.
The information provider maintains a “host” computer system (e.g., a large “mainframe” computer) that automatically answers the incoming call. When a user requests a function to be performed by the information provider, software is run on the host computer system to satisfy the request. Results can be stored on the host for later review or file transfer to the remote personal computer. The user's computer uses “file transfer protocols” and “workstation capture buffer” to receive the data. However, just like with prior “dumb” terminals, user interaction with the host computer system is with the user's personal computer acting as a workstation display terminal. The user is limited to keyboard input and displayed output.
There are also certain products that allow one personal computer to remotely access another personal computer and/or resources connected to the other personal computer. For example, a product known as “PC Anywhere” involves loading software onto two personal computers: the “master” personal computer to be accessed, and the “remote” personal computer that will be doing the remote accessing. The software allows an on-line, real time link to be established via modems and a telecommunications link between the master and the remote. All user inputs (e.g., keyboard and mouse commands) inputted at the remote are passed to the master, and all display outputs (e.g, screen driver inputs) are passed from the master to the remote. The processor of the remote simply passes this information back and forth without doing any other substantive processing on it. Moreover, the on-line session takes control of the remote computer (at least in a single tasking environment) and does not allow the remote user to access other resources of his remote computer. This “PC Anywhere” technique thus allows the remote computer to access all resources (e.g., connections to a minicomputer) that the master can access, but does not permit any substantial degree of co-processing. In other words, the remote personal computer thus acts like a “dumb” terminal, with the master doing all of the substantive processing.
So-called “Bulletin Board” systems also provide on-line services to PC users. These systems typically consist of a dedicated personal computer with a large hard disk to store the software and messages collected from various users. These systems are suitable for sending and retrieving messages, bulletins, programs, and other uses like a forwarding point for customer orders, remote site data collection, software distribution, or on-line product support services. Limited hardware and software costs for these systems has made them a cost effective solution for certain business needs. More frequently, they are used by individuals to send and receive programs and messages. The biggest limitations to these systems are their lack of security controls and their limited capabilities (and corresponding susceptibility to overload) when operated in a multi-user and multi-tasking environment. Bulletin Board systems are also renowned for spreading computer viruses (see discussion below) particularly because virus coders can easily upload their infected programs anonymously.
Another way computer users commonly share information is by logging onto the “Internet,” a worldwide network of computers connected together. Nearly every university and many other organizations in the United States have connected their computer systems to the Internet. The Internet is commonly used to transfer electronic mail and files between computers. However, some “server” computers on the Internet also provide automatic computing capabilities to remote users. For example, it is possible to send an electronic mail “request” that a particular “server” computer automatically responds to by sending a electronic mail “reply” containing
Cosimano Edward R.
Nixon & Vanderhye P.C.
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