Operating Systems

Manual files are records that are not entered or stored in electronic format. These are physical documents which are created and saved manually.

Web browser

Mac OS X 10.6 still beats Windows. Mac OS X 10.6 systems are more stable and secure than any Windows, and this has been proven. 10.6 still beats Windows in performance. It is also in my opinion more useable than Windows 7.

Paging has many advantages. First of all, paging allows you to relocate memory areas to other places where they are more useful. For example, any operating system must divide memory in two areas, one for the operating system itself (OS, data, management tables, ...) and one for the user programs. The area for the OS must be subdivided into areas to store each driver and its data. The area for the user must be subdivided to store each program and its data.

Directories

UNIX

Q.How are devices represented in UNIX?

A.Devices in UNIX are represented by files. These are special files located in the )dev directory. Hence in UNIX, every piece of hardware is a file. This device file allows us to access the hardware.UNIX represents all devices as files. These files are located in the directory /dev. That is why the devices and other files are accessed in a similar way.Devices file which is specified as 'block special file' with some similar characters of a disk file. A device which is specified as a 'character special file' with some characteristics that is similar to a keyboard.For instance, the following command;

Less -f /dev/hda is not a file in the 'real' sense. When read, it is actually reading directly from the first physical hard disk of your machine.

There are several open-source operating systems, most of which appear to be clones of Unix.

Examples include FreeBSD, Linux, Minix.

yes the utilities comes from OS An operating system is the set of basic programs and utilities that make your computer run. Debian uses the Linux kernel (the core of an operating system), but most of the basic OS tools come from the GNU project; hence the name GNU/Linux.

Operating systems using Linux are often found on servers, many popular sites' servers run Linux because of its stability and performance. Linux is also used by people wanting to learn how to build a kernel thru example, because Linux is open source, they can. Linux is also used by people who want to build a custom operating system for their needs.

UNIX, Microsoft Windows, and Linux ARE network operating systems.

MacOS keychains are for containing security-related data. Examples include private keys, passwords for various applications, and secure notes and files.

Operating System Deployment is a server technology from Microsoft for network-based installation of Windows operating system. The technology is the successor to Remote Installation Services.

The most common type of surveillance system is a video sytem, either self-monitored or monitored remotely by a company. Other forms of surveillance systems include audio and internet monitoring.

This is not always true, it depends on the operating system and the bootstrap process.

Best way is to install it on virtualbox or vm workstation .

In a word: Quality.

Design is not just how it looks, it is how it works -

vi is the default editor in Linux operating systems. It can be used not just to write programs, but to write any type of text files. Refer the following link for complete set of commands.

http://www.cs.colostate.edu/helpdocs/vi.HTML

Network security concentrates on the packets of information flowing between computer systems.

Operating System security controls access to resources on the server itself.

Therefore, the two are looking at different things in terms of security.

The operating system has a number of function. Some of them are communicating with peripherals, interfacing, coordinating concurrent processing, resource management, accounting and security and memory management.

Yes. Many Linux distributions can be easily booted from a USB Flash drive. With some modification, booting Windows XP is also possible.

bt.o is the kernel mode driver. When you insmod bt.o you are inserting it into the kernel, where it can cause bad things to happen if it screws up. btduser is the user mode driver. It runs as an application in user space, where usually the worse thing that can happen is a segfault. You don't have to insmod anything for user mode. You just run the application.

it includes computer h/w,os,utility programs,assembly&hl languages,application programs.

Operating system and utility software help the user communicate with computer hardware. They achieve this by providing a user interface and interpreting user instructions for the hardware.

Yes. A bootloader can be set up on the boot drive to load an operating system from any other disk on the system.

Shut down physically turns off your computer (If your computer supports it) Log off Logs off the current user in a multi user environment such as a school or office.