Now however we have the Linux operating systems that were based on UNIX. Most forms of Linux are free and open source meaning like the original versions of UNIX someone that knows what they are doing is free to use the base operating system as a foundation to create their own
The first instruction it will run is to pass control to BIOS to do POST. Once the control goes to BIOS it will take care of two things Run POST operation Selecting first boot device MBR LOADING: MBR is a location on disk which has details about Primary boot loader code Partition table information Magic number Once the CPU knows all these details, it will try to analyze them and read the first portion of MBR to load Second Stage of Boot Loader. GRUB LOADER: GRUB loads the user-selected kernel into memory and passes control on to the kernel. If the user do not select the OS, after a defined timeout GRUB will load the default kernel in the memory for starting
Only the administrator has the administrative privileges and a few other users or applications have permission to access the kernel. This is to ensure everything is kept integrated and protected. Moreover, the viruses and malware attacked are far much less frequent and if any was encountered, fixing and finding a solution will be quicker and faster. Another aspect to point out would be the fact that Windows system allows user to hide files from the system administrator. Unlike Linux, the administrator has clear view of the file system along with the ways it could be
The disk has a series of 1’s and 0’s which are defined on the disk as a burn for a 1 or no burn for a 0. The optical drive is a cheap one as its only needed for the installation of the Operating System and programs the user will be using.
Remove the front panel covering the drive bay. Slide the optical drive in from the front of the case on your computer into 5.25 inch bay inside the case . Align the optical drive with the front panel of the computer and screw the two screws into the compartment to secure the Optical drive. Connect the SATA power cable from your power supply to the appropriate place on the back of your optical drive. Connect the SATA data cable to the port at the back of the optical drive and the free SATA port on the motherboard.
The steps to connect printer to the wireless network in the MAC OS by following the same steps like Windows OS. Users need a strong wireless network using the SSID name and password. Users can connect the HP printer to the wireless connection with the safe steps; • Users need to disconnect from all the wired connections. • Users can visit the https://123.hp.com/us/en/devices/dj2622 HP official site and opt for the right software. The HP easy start will run on the device • After the software downloads, users can select the HP Easy Start.
Advantages of AppleTalk: - The advantages of AppleTalk are as follows: • Appletalk's are automatically added to the Macintosh operating system. • It's easy to implement and adjust. • A small work group setup is simple and affordable Disadvantages of AppleTalk:- The disadvantages of AppleTalk re as follows: • AppleTalk is not suitable for large networks because it is designed for small networks. • Compared to other LAN links in 230.4 Kbps, this is very
Describe new features of Windows Server 2012 that GAI can take advantages of. New features of Windows Server 2012 • Interface choice between GUI and pure command line unlike previous Server Core • The new server manager which makes it easy to deploy roles and features remotely to physical and virtual servers. It's easy to create a server group — a collection of servers that can be managed together. The remote administration improvements let you provision servers without having to make an RDP connection. • Improvements to the SMB protocol with SMB 3.0.
A. Lotus B. Pascal C. MS-Excel D. Netscape Answer: B 9. What is a compiler? A. A compiler does a conversion line by line as the program is run B. A compiler converts the whole of a higher level program code into machine code in one step C. A compiler is a general purpose language providing very efficient execution D. None of the above Answer: B 10.
DESIGN AND IMPLEMENTATION The vehicle tracking system is formed by a microcontroller, hardware and software design techniques. A. HARDWARE DESCRIPTION 1) Microcontroller The Atmel microcontroller is used to maintain the school bus tracking system. The microcontroller is compatible with the industry standard 80C51.It is applied for its low power, high performance and non-volatile memory technology. The program can be modified any number of times and dumped into microcontroller because of the on-chip flash memory.