Monolithic system

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A monolithic architecture is where processing, data and the user interface all reside on the same system^{[citation needed]}.

Mainframe computers used a monolithic architecture with considerable success. Monolithic architectures implemented on DOS and earlier Windows based PCs often worked poorly with multiple users^{[citation needed]}. This performance degradation is mainly due to poor mechanisms for record locking and file handling across local area networks^{[citation needed]}.