1 / 8

Operating Systems Taxonomy: Understanding the Classification and Structure

Dive into the classification of operating systems based on resource allocation, response time, process management, and executable structure. Learn about the various types of operating systems and their functionalities in managing hardware resources effectively. Understand the significance of virtual machines and how they impact the overall system structure.

keishal
Download Presentation

Operating Systems Taxonomy: Understanding the Classification and Structure

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ştefan Stăncescu PART IIOPERATING SYSTEMS LECTURE 8 SO TAXONOMY

  2. TAXONOMY OS • The operating system • on a real H/W machine are a compact package of system programs which manages the H/W i.e.: CPU, MEM, I/O, EXT MEM use local H/W system for running local programs communicates, stores, processes (in cloud, for distributed applications) providing an unified management environment • on different machines

  3. SO TAXONOMY • The operating system creates a local VM • efficient standardized friendly (or known interface easy to learn) • adaptable to different tasks • VM hide the real machine with complicate structure complicate handling

  4. SO TAXONOMY • OS classification after resource allocation to processes • - all resources fully allocated only to a process • (batch - batch processing) • - distributed resource allocation multiple processes (PC) • OS classification after response time to the run • - real time RTOS - with guaranteed response time to each process (processes are important) • - without time constraints - optimal loading of computing resources (resources are important)

  5. SO TAXONOMY • OS classification after process management • single process (dedicated system - embedded) embedded application is a process hosted by the unique OS process dedicated to it • cooperative management of processes running process cooperates in management • preemptive management OS contains a supervisor which • regulate run or • abort process run

  6. SO TAXONOMY • OS classification after executable SO structure- CompactSO with a single executable file all resources simultaneously available- Hierarchical (multilayered) SO with a • module architecture - levels of services provided by resources => to the user • each level is an abstract stage adaptation • H/W resource <=> system software levels <=> the user • The operator (user) and user processes • Operator-process communication and I/O management • Memory and disc (files) management • UC process allocation and multiprogramming

  7. SO TAXONOMY • OS classification after OS executable structure (cont)kernel centered SO • kernel provides reliable communication between server services and user calls • I/O separated by drivers OS versions not necessarily involve • kernel stability, safety, versatility • client-server –with host kernel (supervisor) and server resource oriented and client modules (protected) client call server services by message passing RPC • (distributed systems)

  8. SO TAXONOMY • OS classification after OS executable structure (cont) • virtual machines VM • the kernel covers (hide) the real (diverse H/W) machine each real machine converted in std. VM • with special nest VM kernels over same real machine • you can install multiple virtual machines (VM) • each with its own resource management system (OS) installed on the same core (HAL) • OS with each process with separate VM • runs in separate VM environment • nest VM kernel makes interprocess communication

More Related