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Operating Systems
Operating systems, both proprietary and open-source, include those produced by Microsoft, Linux, and Apple Mac
4,423 Questions
What does the ios operating system do?
iOS is the iPhone's operating system that is used by Apple. It is similar to the Mac OS, and is theoretically more stable than Windows OS.
How do analog multimedia systems operate?
Analog multimedia systems use books, documents, films, photographs, records, tapes, videotapes, and many other forms of media to store text, sounds, and pictures
Who dominate the computer operating systems market?
Because of the influence of the IBM-compatible pc, Windows dominates the computer operating system market.
Why Operating system is required to design any software application?
In the same way that is required computer to post this question
Difference between preemptive and non preemptive?
if block Ki of size Ni is to be transferred to memory M1 & the blocks occupying the space in M1 can't be preempted by block Ki then it is necessaray to find or create a space of Ni words inM1 . this process is called non preemptive allocation....non preemptive allocation can't make efficient use of memory allocation.whenever preemptive allocation is used for efficient use of the available memory space and rellocation can be done.
What operating system does McDonald's use?
McDonald's website is hosted on TMOS, a Unix variant. From available information, it appears that McDonalds uses XP Embedded for its POS terminals and visual ordering system.
1. Program execution.
The operating system loads the contents (or
sections) of a file into memory and begins its execution. A user-level
program could not be trusted to properly allocate CPU time.
2. I/O operations.
Disks, tapes, serial lines, and other devices must be
communicated with at a very low level. The user need only specify
the device and the operation to perform on it, while the system
converts that request into device- or controller-specific commands.
User-level programs cannot be trusted to only access devices they
should have access to and to only access them when they are
otherwise unused.
3. File-system manipulation.
There are many details in file creation, deletion, allocation, and naming that users should not have to perform. Blocks of disk space are used by files and must be tracked. Deleting a file requires removing the name file information and
freeing the allocated blocks. Protections must also be checked to
assure proper file access. User programs could neither ensure
adherence to protection methods nor be trusted to allocate only free
blocks and deallocate blocks on file deletion.
4. Communications.
Message passing between systems requires
messages be turned into packets of information, sent to the network
controller, transmitted across a communications medium, and
reassembled by the destination system. Packet ordering and data
correction must take place. Again, user programs might not
coordinate access to the network device, or they might receive
packets destined for other processes.
5. Error detection.
Error detection occurs at both the hardware and
software levels. At the hardware level, all data transfers must be
inspected to ensure that data have not been corrupted in transit. All
data on media must be checked to be sure they have not changed
since they were written to the media. At the software level, media
must be checked for data consistency; for instance, do the number
of allocated and unallocated blocks of storage match the total
number on the device. There, errors are frequently
process-independent (for instance, the corruption of data on a disk),
so there must be a global program (the operating system) that
handles all types of errors. Also, by having errors processed by the
operating system, processes need not contain code to catch and
correct all the errors possible on a system.
What happens if I boot from a nonexistent device?
Your computer will not boot, it will probably freeze.
RTOS stands for Real Time Operating System. Typically these are multi-tasking operating systems used in applications where microcontrollers are used to monitor and control embedded systems (e.g. telecom products). Examples include VxWorks, RTLinux.
What are Hardware and software requirements for various operating systems?
The hardware requirements are what the Operating System designers have determined as the MINIMUM hardware to be able to run the Operating system.
There are no minimum or suggested Software requirements for an operating system since the operating system IS the software.
Differences between single user operating system and real-time operating system?
A single user OS could also be a real-time system. The differences in the two are based on how a process is given control or priority within the system. Realtime systems give preferences to realtime control processes (realtime runs at a much higher priority level).
Most single-user operating systems treat processes with equal priority unless you indicate that a certain process is to receive preferential treatment. This can be done by raising the priority of the user process to that of realtime, meaning it will receive resources (such as CPU cycles) above other programs in the system.
Which operating system supports the ZFS file system?
Sun's Solaris OS supports the ZFS file system natively.
Can you update your operating system on the vodafone 858 smart phone?
Yes.. The stock or default OS of this phone is Android 2.2 named Froyo. And it is upgradable to Android 2.3.7 known as Gingerbread , which is the most stable Rom currently Jellybean (4.1) Roms are also avaliable for this rom , but i think that 2.3.7 unofficial mod by cyanogen mod cm7 is best for this phone.
Source :
Using Vodafone 858 , cyanogen mod 7.2 unofficial
What are the main purpose of operating system?
The main purpose of an operating system is to control the computer's hardware and allow the user to interface with it. Software and programs can be ran within the operating system to allow for virtually endless possibilities.
What are the functions of operating system?
The functions of an operating system include booting the computer and performing basic tasks. The operating system manages the keyboard and mouse. It provides a graphical user interface.
basic input output system (BIOS)
What is the best description of a database management system?
Database Management System is a software package with computer programs that control the creation, maintenance, and the use of a database. It allows organizations to conveniently develop databases for various applications by database administrators and other specialists. A database is an integrated collection of data records, files, and other database objects. A DBMS allows different user application programs to concurrently access the same database.
Dual boot the what menu automatically appears and asks you to select an operating system?
In Linux, we have a menu.lst file in boot/grub folder in which we can change the boot order and timeouts.
No idea about Windows.!.
What is the demands of network operating system?
The demands of a network operating system are to be able to share resources, and ensure network security.
