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The exhaustive list of topics in Operating System in which we provide Help with Homework Assignment and Help with Project is as follows:
- Operating systems Homework Help
- Application scenarios
- kind of resource support needed by applications
- what is an “Operating System” and what support is provided to run an application
- hardware and software layers
- organization of a computer system
- operational view of a computing system with resources like processor
- Memory
- input and output
- issues in resource management
- a bare-bone operating system
- introduction to the issues in communication with devices
- kernel and shell of an operating system
- processes and file
- File systems: What is a file
- user view of files
- file types and file operations
- file types in Unix and Microsoft
- file operation commands
- file access rights
- file storage management
- Inode or FAT structure
- file control blocks
- root file system
- directory and file paths
- Blocks
- impact of block size selection
- contiguous allocation
- chained and indexed allocations
- Impact of allocation policy on fragmentation
- mapping file blocks on the disk platter
- Cylinder
- disk access control and scheduling Homework Help
- Processor resource management: Explanation of processor as a resource
- definition of a process
- processor utilization
- multi-processing and time sharing
- response time
- process state
- process state transitions
- process scheduling
- short-term and long term schedules
- non-pre-emptive and pre-emptive scheduling policies
- time slice
- policies like FCFS
- SJF
- Gantt charts and parameters to compare policy performance
- context switching of process state information
- Kernel architecture: User and kernel mode of operation
- System calls
- process states
- kernel operations
- design of a scheduler
- Motivation for memory management Homework Help
- when and where primary and secondary memory management is needed
- compiled code and memory relocation
- linking and loading
- processes and primary memory management
- memory allocation policies
- critique of various policies like first fit, best fit, internal and external fragmentation
- secondary memory management
- fixed and variable partitions
- virtual memory concept
- paging and page replacement policies
- page faults
- Thrashing
- hardware support for paging
- Segmentation
- segmentation with paging
- Issues in human centric
- device centric and computer centric IO management
- input output modes
- programmed IO
- Polling
- interrupt mode of IO
- various types of interrupts
- interrupt servicing
- priority interrupts
- interrupt vectors
- direct memory access (DMA) mode of transfer
- setting up DMAs
- device drivers
- interrupt handling using device drivers
- buffer management
- device scheduling
- disk scheduling algorithms and policies
- Resource Sharing and Management Homework Help
- resource allocation and scheduling
- resource graph models
- Deadlocks
- deadlock detection
- deadlock avoidance
- deadlock prevention algorithms
- mutual exclusion
- Semaphores
- wait and signal procedures
- Spawning a new process
- parent and child processes
- assigning a task to child processes
- need for communication between processes
- modes of communication
- Pipes
- shared files
- shared memory
- message based IPC
- signals as IPC
- distribute computing environment
- Characteristics of real-time operating systems
- classification of real-time systems
- architectures of real-time systems
- micro-kernels
- scheduling in RTOS
- rate monotonic scheduling
- priority inversion
- RTOS for hand-held devices
- Security breaches
- types of attacks
- attack prevention methods
- security policy and access control
- OS design considerations for security
- Access
- policy and access control
- OS design considerations for security
- access control lists and OS support
- internet and general network security
- Basic file creation
- editing and storage
- accessing and organizing files
- editor tools and file management operations
- String search commands
- find commands
- commands to sort with their options
- AWK tool
- AWK syntax
- AWK grammar
- examples for processing
- Productivity tools
- different shells
- shell scripts
- When to use Make
- how to use Make
- macros abstractions and shortcuts
- Tar and other utilities
- file compression tools
- image and multi-media file formats
- profiling tools
- Need for version control
- Sccs
- Cvs
- other version control tools
- Need for a desktop metaphor
- window systems and associated controls
- graphical interface (GUI)
- Administration tasks
- user account management
- start and shutdown procedures
- File Systems and Management Homework Help
- Process Management Homework Help
- Memory Management Homework Help
- Input Output Management Homework Help
- Shared resources
- Interprocess communication Homework Help
- Real time Systems and Microkernels Homework Help
- OS and Security Homework Help
- OS primer Homework Help
- Search, sort tools Homework Help
- AWK tool Homework Help
- Shell scripts Homework Help
- Make tool Homework Help
- Other useful tool Homework Help
- Version control tool Homework Help
- Window metaphor and GUI Homework Help
- System administration Homework Help
setting up operational environment for a new user