What would you like to do?
What new program exist to protect Windows operating systems such as vista?
Maybe, but expect many problems even if they appear to work as vista has compatibility problems from the get go with pretty much 2/3 of all known applications, software and ap…pliances (cameras, etc).
Improved Graphical User Interface, the Aero: i think it's helpful frwn
Vista is Italian for "view" or "see." For example, "Asta la vista, baby!" means "See you later, baby!". Solution: Windows vista means operating system it is upgraded version …of windows xp. development by microsoft.
Hell no. the bios sits under the operating system (vista is an operating system) the bios is independent of operating systems, and is there to....run the operating system.
Discuss in detail the process management memory management io and file management and security and protection in windows vista operating system?
Each process in Windows Vista operating systemcontains its own independent virtual address space with both code and data, protected from otherprocesses. Each process, in turn…, contains one or more independently executing threads. A threadrunning within a process can create new threads, create new independent processes, and managecommunication and synchronization between the objects. By creating and managing processes,applications canhave multiple, concurrent tasks processingfiles, performing computations, or communicating withother networked systems. It is even possible to exploit multiple processors to speedprocessing. The following sections explain the basics ofprocess management and also introduce the basic synchronization operations. â¢ Job: collection of processes that sharequotas and limits â¢ Process: container for holding resources â¢ Thread: Entity scheduled by the kernel â¢ Fiber: Lightweight thread managed entirelyin user space. Interprocess Communication Threads can communicate in many waysincluding: pipes, named pipes, mailslots, sockets, remote procedure calls, and shared files Semaphore A semaphore is created using function'CreateSemaphore' API function. As Semaphores are kernel objects and thus have security descriptors andhandles. The handle for a semaphore can be duplicated and as a result multiple process can besynchronised on the same semaphore. Calls for up (ReleaseSemaphore) and down(WaitForSingleObject) arepresent. A calling thread can bereleased eventually using WaitForSingleObject, even ifthe semaphore remains at 0. Mutexes Mutexes are kernel objects used forsynchronization and are simpler than semaphores as they do not have counters. They are locks, with APIfunctions for locking (WaitForSingleObject) and unlocking (releaseMutex). Like Semaphores, mutex handlescan beduplicated. Critical Sections or Critical Regions This is the third synchronization mechanismwhich is similar to mutexes. It is pertinent to note that Critical Section are not kernel objects, theydo not have handles or security descriptors and cannot be passed between the processes. Locking andunlockingis done using EnterCriticalSection and LeaveCriticalSection, respectively. As theseAPI functions are performed initially in user space and only make kernel calls when blocking is needed,they are faster than mutexes. Events This synchronization mechanism uses kernelobjects called events, which are of two types: manual-reset events and auto-reset events. The number ofWin32 APIcalls dealing with processes, threads, and fibres is nearly 100. Windows Vistaknows nothingabout fibres and fibres are implemented in user space. As a result, the CreateFibre call does its workentirely in user space without making 12-13 system calls. Scheduling There is no central schedulingthread in Windows Vistaoperating system. But when a thread cannot run any more, the thread moves tokernel mode and runs the scheduler itself to see which thread to switch to and the concurrencycontrol is reached through the following conditions â¢ Thread blocks on a semaphore, mutex, event,I/O, etc.: In this situation the thread is already running in kernel mode to carry out the operation on thedispatcher or I/O object. It cannot possibly continue, so it must save its own context, run the schedulerto pickits successor, and load that threat's context to start it. â¢ It signals an object - In this situation,thread is running in kernel mode and after signaling someobject it can continue as signaling an object neverblocks.Thread runs the scheduler to verify if the result of its action has created a higher priority thread.If so, a thread switch occurs because Windows Vistais fully pre-emptive. â¢ The running thread's quantum expires: Inthis case, a trap to kernel mode occurs, thread executes the scheduler to see who runs next. The samethread may beselected again and gets a new quantum and continue running, else a thread switch takesplace. MEMORY MANAGEMENT Windows Vistaconsists of an advanced virtualmemory management system. It provides a number of Win32 functions for using it and part of theexecutives and six dedicated kernel threads for managing it. In Windows 2000, each user process has its ownvirtualaddress space, which is 32 bit long (or 4 GB of virtual address space). The lower 2 GB minusapprox 256MB are reserved for process's code and data; the upper 2 GB map onto to kernel memory in aprotected way. The virtual address space is demand paged with fixed pages size. INPUT/OUTPUT IN WINDOWS VISTA The goal of the Windows VistaI/O system is toprovide a framework for efficiently handle various I/O devices. These includes keyboards, mice, touchpads,joysticks, scanners, still cameras, television cameras, bar code readers, microphones,monitors, printers, plotters, beamers, CD-records, sound cards, clocks, networks, telephones, andcamcorders. FILE SYSTEM MANAGEMENT Windows Vistasupports several file systemslike FAT-16, FAT-32, and NTFS. Windows Vistaalso supports read-only file systems for CD-ROMs and DVDs.It is possible to have access to multiple file system types on the same running system. New Technology File System (NTFS) NTFS stands for New Technology File System.Microsoft created NTFS to compensate for the features it felt FAT was lacking. These features includeincreased fault tolerance and enhanced security. Individual File names in NTFS are limited to 255characters; full paths are limited to 32,767 characters. Files arein Unicode. But Win32 API does not fully supportcase-sensitivity for file names. NTFS consists of multiple attributes, each of which is represented by astream of bytes Security NTFS has many security options. You can grantvarious permissions to directories and to individual files. These permissions protect files anddirectories locallyand remotely. NT operating system wasdesigned to meet the U.S. Department of Defense's C2(the orange book security requirements). Windows Vista was not designed for C2 compliance, but itinherits many security properties from NT, including the following: (1) secure login with anti-spoofingmechanism, (2) Discretionary access controls, (3) Privileged access controls, (4) Address space protectionper process, (5) New pages must be zeroed before being mapped in, (6) security auditing File Compression Another advantage to NTFS is native supportfor file compression. The NTFS compression offers you the chance to compress individual files andfolders of your choice.
IS The task manager provides information for the window vista operating system about programs and processes running on your computer?
Windows in written with the C, C++, and C# programming languages.
Is the operating system Windows Vista or Windows XP used to run application programs which are programs that perform an application-related function?
No obv not.
Some examples of security programs would be AVG, McAfee, Norton.
The Mac OS (Apples's operating system) and Windows are two separate operating systems. Neither runs on top of the other, technically. However, there are emulators, both hardwi…red as well as software-based so that the Mac can run Windows software. Generally, you have to partition your hard drive on the Mac to accommodate both the Mac OS and the emulated Windows environments, then re-boot to exit the current operating system and enter the other. You would have to check with the current emulation hardware and/or software specs out there to know for certain which Windows versions (i.e. XP, Vista, 7, etc.) are currently supported. You could either contact Apple directly (which almost always requires $), pick up a catalog, or do a search online for "Mac Software AND Hardware" to see what's available. Google is your friend, in this instance. Just remember to click on the "Shopping" link at the top of the page before you enter your search criteria or your search will yield countless web articles that are probably more than you're willing to read. Happy surfing!
Windows Vista was technically the replacement for Windows Xp. However, it was so unpopular that many users simply waited for the release of Windows 7 to upgrade.
The Windows Vista OS can be downloaded from the Microsoft website and placed onto a writable disk or flashdrive, provided the user is in possession of a valid product ID or pr…oof of purchase. Most other locations, including many sites that host the OS as a torrent file, are illegally distributing the system.
Windows Vista reviews can be found on Ciao, DooYoo and Reevoo review sites. They can also be found reading on forums such as AVForum and Money Saving Expert.