The present invention relates to mass-marketed computer systems, and in particular to a computer that configures system files upon startup to conform to custom sets of software and hardware features.

Small desktop and laptop computer systems sold to consumers generally include basic system hardware (a central-processing unit, or CPU; a standard allocation of random-access memory, or RAM; a display monitor; a hard-disk drive and a floppy-disk drive) and software (usually an operating system that may include a graphical user interface) . However, depending on the customer's preferences, manufacturers may expand this basic package into a customized, user- efined system that includes additional items of hardware and software. For example, the customer may request a printer, special sound and video boards and a CD-ROM drive to support multimedia applications, additional memory, a larger or additional disk drive, etc. By providing these items with the delivered system, the manufacturer spares the customer the need to purchase and install these items separately.

Unfortunately, the customer's convenience can prove the manufacturer's bane. Each additional item, even routine hardware such as a disk drive, ordinarily requires reconfiguration of the basic system software. Devices such as mouse-pointers and special video hardware can require installation of separate software modules. Indeed, even standard software may be provided in multiple versions having different levels of capability, only one of which is to be made available to the user. If the custom system is to be shipped in a ready-to-use form, these installations and reconfigurations must ordinarily take place at the factory, requiring power-up and manual operation of the system. This process is both time- consuming and labour-intensive.

Hardware manufacturers also frequently "bundle" software produced by third parties with their systems. Such software may be capable of functioning on a variety of hardware platforms, e.g., by featuring a series of on-board software "drivers" or other interfaces; it is up to the user or the hardware vendor to select and install the appropriate driver. Similarly, the hardware manufacturer may itself produce a generic software version that may be configured to operate on any of a number of machines it sells. Once again, if the customer is to receive a ready-to-use system, the generic software must be manually loaded and adapted to the purchased system.

In light of the foregoing, the present invention is directed to the problem of relieving the manufacturer of a custom computer system from the need to manually configure the system prior to shipment.

To achieve this, the invention provides a self-configuring data processing system comprising a processor unit, at least one mass-storage disk and a video display, the system comprising:

(a) a set of discrete files electronically stored on a disk;

(b) an interrogation module for interrogating the system to determine parameters associated with at least one disk, the video display and system accessories; and

(c) a startup module for permanently designating subsets of the discrete files for automatic selection each time the processor is actuated based on the interrogation, the file subsets each containing processor instructions for operating the disk, the video display and the system accessories identified by the interrogation module.

This approach permits automatic accommodation of generic software to a particular hardware platform and facilitates immediate availability of a computer system to the customer upon initial power-up.

Other advantages of the invention will be clear from the following.

The invention accordingly comprises an article of manufacture possessing the features and properties exemplified in the constructions described herein and the several steps and the relation of one or more of such steps with respect to the others and the apparatus embodying the features of construction, combination of elements and the arrangement of parts that are adapted to effect such steps, all as exemplified in the following summary and detailed description, and the scope of the invention will be indicated in the claims.

More particularly, in at least one embodiment of the invention the foregoing is accomplished by establishing a single "interrogation" module, stored on a system disk and loaded when the CPU is first activated, that scans the system for components requiring specific software to operate. The interrogation module obtains identification data from these components and, based thereon, selects the appropriate software from a series of dis -based files.

The selected software files are identified and appropriate "install" or equivalent commands added to the initialization file so that, each

subsequent time the system is powered up, the designated software files are located in mass storage and transferred into system memory.

The interrogation module can be arranged to scan the system for files labelled with a characteristic identification pattern and to execute these when the CPU is first activated. This feature supports self- configuring software and also permits third-party manufacturers of system components to include their own initial-configuration software.

The system can be arranged to perform various one-time setup or configuration operations on at least the main system disk to render it compatible with the operating system, and selects the proper version of the operating system for the purchased system.

The foregoing discussion will be understood more readily from the following detailed description of an embodiment of the invention, when taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a block diagram of a computer system;

and FIGS. 2A-2C collectively illustrate, in flow-chart form, operation of the system of FIG. 1.

Refer first to FIG. 1, which illustrates, in block-diagram form, a computer system or hardware platform. The system includes a central- processing unit 20, which performs operations on and interacts with a main volatile system memory 22 and components thereof. The system further includes at least one mass storage device (most commonly a hard disk) 26, which contains permanent files of information. (Typically, a computer system is furnished with at least one floppy-disk drive in addition to a hard disk, the capacity of which is selected by the customer from a series of standard options; device 26 is intended to collectively denote all system disk drives.) All components of the system communicate over a system bus 30.

The system also features various peripherals that facilitate interaction with the user. These include a keyboard 32 and a position- sensing device (e.g., a mouse) 34. The output of either device can be used to designate information or select particular areas of a video or flat-panel display 36 corresponding to functions to be performed by the system. Other system components might include internal devices such as video cache memories, extended resident memory, sound boards, math coprocessors, and storage devices such as CD-ROM drives; and other peripherals such as modems and scanners. These internal and external devices are hereafter referred to generically as "accessories."

During system operation, main memory 22 contains an operating system 50, which is loaded from mass-storage device 26 (generally the hard disk) by a "bootstrap" program when the user turns on the computer. Operating system 50 directs the execution of low- level, basic system functions such as memory allocation, file management and operation of storage device 26. It also executes a system startup module 52 whose commands are stored in a special file (the CONFIG.SYS and AUTOEXEC.BAT files in DOS systems). The startup program "installs", or loads into system memory 22, a series of designated files necessary to operate or support the operation of various system components and accessories; such files are hereafter generically referred to as "drivers," and are indicated by reference numeral 54. For example, display 36 may represent an EGA, VGA or Super VGA video device, any of which requires a different display driver. As discussed below, when the system is first turned on, startup module 52 directs CPU 20 to load into system memory 22 an interrogation module 56, execution of which ensures that the proper drivers will be loaded during subsequent system power-ups.

Storage device 26 (preferably the hard disk) contains a series of file sets 601, 602, 603 ... 60n, each comprising a series of driver files Fl, F2, etc. The file sets each correspond to system requirements that vary with characteristics of the system itself, and the constituent files furnish the full set of system variations. Thus, a file set may correspond to an accessory that can take multiple forms or versions, each requiring a different driver; or to system parameter files utilized by or integrated within operating system 50, and which vary from system to system; or to the basic startup module 52, which may vary with the system or its desired capabilities. The constituent files collectively provide all possible system or accessory options; for example, were the customer given the discretion to order an EGA, VGA or Super VGA display device, the file set 60 corresponding to display drivers would contain driver files F representing each of these display types.

Interrogation module 56 electronically identifies system parameters and the various accessories requiring drivers. It then designates the appropriate file (or files) F in each of the file sets 60 in a manner that ensures these will be loaded whenever the system is again started. The designation function is most straightforwardly accomplished by modifying startup module 52. For example, in a DOS environment, interrogation module 56 would designate the appropriate files in the CONFIG.SYS system file using the "install" instruction. Alternatively, if modification of startup module 52 is for some reason impractical, the selected files F can be renamed to conform to generic identifications in startup module 52. Actual interrogation is accomplished by utilizing operating system calls

or direct access to examine the contents of ports, registers and chip settings; the details of such operations are specific to the particular accessories interrogated, are readily implemented by those skilled in the art.

Interrogation module 56 also examines system parameters, loading files F and/or modifying existing modules as appropriate. For example, if the customer's system includes a substantial amount of resident memory, it may be appropriate to load different versions of the startup module; and variations in the size and composition of storage device 26 can require changes to the operating system itself.

Finally, interrogation module 56 scans storage device 26 for files having a characteristic name or identification pattern; these represent non-standard initialization or setup files for software that interrogation module 56 has not been configured to install directly.

Refer now to FIGS. 2A-2C, which collectively depict the operation of a representative interrogation module in flow-chart form. The depicted embodiment relates to the International Business Machines PS/1 computer system and its typical component variations. The process begins at block 100, when the system is first turned on, and thereafter passes to block 102. In this step, information regarding system characteristics is obtained. Specifically, the system determines the size of system memory 22; the size of dedicated video memory; whether the "Smart Energy System" (SES) hardware and software components (which decrease the computer's energy consumption) are present; the type of video display; the size of the system hard disk; the type of floppy-disk drive(s) included with the system; and the presence or absence of multimedia hardware (in particular, a sound board and a CD-ROM drive) .

The first action taken by the system, indicated at block 104, is to reconfigure the hard (C:) drive to take advantage of disk compression by resizing the "logical" drive H:, which remains uncompressed; the H: drive contains a compressed volume file representing the C: drive as well as various system files that cannot be compressed. The effective size of the C: drive, expanded beyond its physical size by compression, depends on the size of the compressed volume file, which, of course, is ultimately limited by the physical size of the C: drive (and the need to reserve some uncompressed disk space) . The system therefore determines the physical size of the C: drive and, based thereon, sets the size of the compressed volume file.

However, if the physical size of the C: drive exceeds the size needed for the largest compressed volume file allowed, it becomes

necessary to add more logical drives with associated compressed volume files. The system makes this determination at step 106, creating the additional logical drives and compressed volume files at step 108. In particular, the largest compressed volume file allowed in connection with the PS/1 system is 512 megabytes (MB) ; disks larger than the standard 342 MB drive can accommodate more compressed volume file space, and so additional logical drives are created. If the physical size of the C: drive is less than 342 MB, no additional drives are created, as indicated at block 110.

Alternatively, the system can be straightforwardly configured to allocate disk space by creating actual disk partitions, rather than resizing the existing drives and creating logical drives.

Depending on the size of the dedicated video memory, interrogated at step 102, the system then determines, at step 112, whether to designate the large-memory (block 114) or 512K-memory (block 116) video driver. Both of these driver files exist on the system hard disk, and the invention modifies the SYSTEM.INI file to designate the proper one. Similarly, depending on the size of system memory, the invention determines, at step 118, which of two possible versions of AUTOEXEC.BAT and CONFIG.SYS (blocks 120, 122) to utilize. The selected version is stored on the hard drive, and replaces the version present when the invention was first activated.

If multimedia hardware has been installed (block 124) , the startup module, which includes the SYSTEM.INI, CONFIG.SYS and AUTOEXEC.BAT files, is appropriately modified at step 126; otherwise, all files relating to multimedia hardware are erased at step 128. '

If SES is present (block 132) , an installation program is run (block 134) to add the SES entries to informational system programs and the Windows Program Manager screen.

At step 136, the hard disk is scanned for files having a characteristic naming pattern (specifically, those files having names beginning with the characters PS1HOOK) , and these files are executed.

Finally, its tasks accomplished, the interrogation module removes itself from the system by deleting all interrogation module files (step 138) , and reboots the system to run in accordance with the modifications it has introduced (step 140) .

It will therefore be seen that the foregoing represents an efficient approach to system configuration that avoids the need for manufacturer or

user involvement. The terms and expressions employed herein are used as terms of description and not of limitation, and there is no intention, in the use of such terms and expressions, of excluding any equivalents of the features shown and described or portions thereof, but it is recognized that various modifications are possible within the scope of the invention claimed.