1 - Erode Sengunthar Engineering College
... requires CPU scheduling scheme , job synchronization , job communication also jobs should not get stuck in deadlock. 6.Differentiate TCS & LCS ? LCS 1.Each processor has its own local memory 2.Each processor can communicate with other all through communication lines ...
... requires CPU scheduling scheme , job synchronization , job communication also jobs should not get stuck in deadlock. 6.Differentiate TCS & LCS ? LCS 1.Each processor has its own local memory 2.Each processor can communicate with other all through communication lines ...
Operating Systems
... In Batch processing same type of jobs batch (BATCH- a set of jobs with similar needs) together and execute at a time. The OS was simple, its major task was to transfer control from one job to the next. The job was submitted to the computer operator in form of punch cards. At some later time the outp ...
... In Batch processing same type of jobs batch (BATCH- a set of jobs with similar needs) together and execute at a time. The OS was simple, its major task was to transfer control from one job to the next. The job was submitted to the computer operator in form of punch cards. At some later time the outp ...
Module 2
... authenticating to a server using an IP address. • It also acts a fallback authentication if it cannot complete Kerberos authentication such as being blocked by a firewall. • NTLM uses a challenge-response mechanism for authentication, in which clients are able to prove their identities without sendi ...
... authenticating to a server using an IP address. • It also acts a fallback authentication if it cannot complete Kerberos authentication such as being blocked by a firewall. • NTLM uses a challenge-response mechanism for authentication, in which clients are able to prove their identities without sendi ...
Operating systems and security
... to access files of etc_aliases_t type for read and write – without regard for which user started the process: allow sendmail_t etc_aliases_t:file { read write }; ...
... to access files of etc_aliases_t type for read and write – without regard for which user started the process: allow sendmail_t etc_aliases_t:file { read write }; ...
4 - Operating System Basics.ppt
... – Respond quickly to user input – MP3 players, Medical devices ...
... – Respond quickly to user input – MP3 players, Medical devices ...
Operating System
... – Operating system: • Windows XP – Plan to upgrade to Windows 7 once it is proved to be a reliable Operating System ...
... – Operating system: • Windows XP – Plan to upgrade to Windows 7 once it is proved to be a reliable Operating System ...
Windows Forensics - University of Washington
... determine how to approach affected system(s) inspect physical environment watch out for anti-forensics, booby-traps consider how to stop computer processing capture volatile data copy hard drive ...
... determine how to approach affected system(s) inspect physical environment watch out for anti-forensics, booby-traps consider how to stop computer processing capture volatile data copy hard drive ...
390aLecture01_12wi
... virtual memory hierarchical file system; "everything" is a file lots of small programs that work together to solve larger problems security, users, access, and groups human-readable documentation included ...
... virtual memory hierarchical file system; "everything" is a file lots of small programs that work together to solve larger problems security, users, access, and groups human-readable documentation included ...
390Lecture1
... virtual memory hierarchical file system; "everything" is a file lots of small programs that work together to solve larger problems security, users, access, and groups human-readable documentation included ...
... virtual memory hierarchical file system; "everything" is a file lots of small programs that work together to solve larger problems security, users, access, and groups human-readable documentation included ...
Operating Systems
... record about the file is created in a special file, the Master File Table (MFT). The record is used to locate a file's possibly scattered clusters. NTFS tries to find contiguous storage space that will hold the entire file (all of its clusters). Each file contains, along with its data content, a des ...
... record about the file is created in a special file, the Master File Table (MFT). The record is used to locate a file's possibly scattered clusters. NTFS tries to find contiguous storage space that will hold the entire file (all of its clusters). Each file contains, along with its data content, a des ...
Mod_7-Ch11
... • Worm (A program that automatically sends itself to another system • Virus (Program that attacks a system to carry out some action the computer user does not want • Denial of Service (Typical attack sends so many messages to a system, that system cannot execute anything except respond to those mess ...
... • Worm (A program that automatically sends itself to another system • Virus (Program that attacks a system to carry out some action the computer user does not want • Denial of Service (Typical attack sends so many messages to a system, that system cannot execute anything except respond to those mess ...
Operating Systems Operating System Component and Structure
... – convenient: no need for rebooting for newly added modules – efficient: no need for messaging passing unlike microkernel – flexible: any module can call any other module unlike layered model ...
... – convenient: no need for rebooting for newly added modules – efficient: no need for messaging passing unlike microkernel – flexible: any module can call any other module unlike layered model ...
Lecture slides
... around the fact that different systems can be used in different ways. Some services cannot be used until the system is in a particular state, or mode, such as being ready for more than one user or having networking available. There are times in which you may want to operate the system in a lower mod ...
... around the fact that different systems can be used in different ways. Some services cannot be used until the system is in a particular state, or mode, such as being ready for more than one user or having networking available. There are times in which you may want to operate the system in a lower mod ...
CS4023_-_lecture_02_..
... CTSS (Compatible Time-Sharing System) was one of the first timesharing operating systems; it was developed at MIT's Computation Center. CTSS was first demonstrated in 1961, and was operated at MIT until 1973. CTSS used a modified IBM 7094 mainframe computer. Louis Pouzin created a command call ...
... CTSS (Compatible Time-Sharing System) was one of the first timesharing operating systems; it was developed at MIT's Computation Center. CTSS was first demonstrated in 1961, and was operated at MIT until 1973. CTSS used a modified IBM 7094 mainframe computer. Louis Pouzin created a command call ...
OS Services #1 File
... function or subroutine calls. As an example of how system calls are used, consider writing a simple program to read data from one file and to copy them to another file. The first input that the program will need is the names of the two files: the input file and the output file. These names can be sp ...
... function or subroutine calls. As an example of how system calls are used, consider writing a simple program to read data from one file and to copy them to another file. The first input that the program will need is the names of the two files: the input file and the output file. These names can be sp ...
Protection in General-Purpose Operating Systems
... Segmentation Segmentation divides a program into separate pieces. Each piece has a logical unity, a relationship among all of its code or data value. Segmentation was developed as a feasible means to have the effect of an unbounded number of base/bounds registers: a program could be divided into ma ...
... Segmentation Segmentation divides a program into separate pieces. Each piece has a logical unity, a relationship among all of its code or data value. Segmentation was developed as a feasible means to have the effect of an unbounded number of base/bounds registers: a program could be divided into ma ...
Operating Systems EDA092, DIT400 Why study Operating Systems
... What does an Operating System do: ...
... What does an Operating System do: ...
Audit Considerations of Outsourcing
... PC and PC based server security continues to be improved by their vendors. Recently made available features include full hard disk encryption, application firewall and integrated malicious software features including anti-virus. In security, the weakest link is people, including people’s commitment ...
... PC and PC based server security continues to be improved by their vendors. Recently made available features include full hard disk encryption, application firewall and integrated malicious software features including anti-virus. In security, the weakest link is people, including people’s commitment ...