Novell DR Doss OS was compatible for personal IBM computing machines
|Processor |286 or better | |RAM |512 KB | |Drive infinite |5 MB ( assumed ) | |Drives |Runs from difficult disc or floppy | |Video |Monochrome. CGA. EGA. VGA or better | |File systems |FAT. FAT32 ( possibly – there was a v8 that supported FAT32. but it no| | |longer appears available on the web site. |
Ubuntu desktop
700. omega processor ( about Intel Celeron or better )
701. 512 MiB RAM ( system memory )
702. 5 GB of hard-drive infinite ( or USB stick. memory card or external thrust but see Live Cadmium for an alternate attack ) 703. VGA capable of 1024?768 screen declaration
704. Either a CD/DVD thrust or a USB port for the installer media Mac OS X 10. 6 Snow Leopard
1GB of memory
5 GB of available disc infinite
DVD thrust for installing
Solaris – from Sun Microsystems
At least 2 GB. A lower limit of 4 GB for production waiters. 8 GB is optimum x86_64-based processors ( AMD64 or EM64T architecture Window waiter 2012
160 GB difficult disc with a 60 GB system divider
1. 4 GHz ( 64-bit processor ) or faster for individual nucleus
3. GHz ( 64-bit processor ) or faster for multi-core
3. Explain the impact of the development of computing machine hardware and the attach toing development of operating system package
The development of computing machine hardware has made large impact with the alterations over the old ages. Computers where so large and Expensive the lone large concern ain 1. It require an air conditioned room. Computer package was really small back so. Computer hardware has evolve with the betterments of smaller central processing unit and now with faster random-access memory and assorted of input and end product. As the computing machine package besides evolve with the demand of better control of all input and end product devices doing it even faster And form of which order goes foremost. In today universe the computing machines package and hardware are necessities to maintaining a concern informations assets secure.
5. Explain the cardinal differences between synergistic. batch. existent clip. and embedded system.
Batch system relied on tonss of punched cards or reels of magnetic tape for input. Synergistic systems give a faster turnaround than batch systems but are slower than the real-time systems Real-time systems are used in time-critical environment where dependability is cardinal and informations must be processed within a rigorous bound. Embedded systems are computing machines place inside others merchandises to add characteristics and capablenesss like lifts. computing machines in cars. 15. In multiprogramming and time-sharing environment. several users portion the system at the same time. This state of affairs can ensue in assorted security jobs. Name two such jobs. Can we guarantee the same grade of security in a time-share machine as we can in a dedicated machine? Explain your replies.
Printers could be a job when. There comes this another user that by chance hit the print button and clicked OK. so the file is being processed to be printed. The consequence is. it will disrupt the current printing procedure. It will do the pressman to blend end product in publishing the information because the other user is now by chance publishing his ain file. Because they besides portion system resources. it will disrupt other current processing files. Let us province some computing machine research labs in schools as an case. Because users portion the system at the same time. they have the chance to copy other user’s file from the system. Once a user saves a file to his/her unit. other users of that group or connected system may besides hold an entree to the file. Other users may alter an information inside the file or even steal the file from the proprietor itself without the proprietor cognizing it. They may besides modify the files or plans that was saved or ran by the proprietor. Furthermore. some of the menaces that the proprietor of a certain file may meet is the information confidentiality. Without him non being cognizant of the system used as the time-sharing and concurrent execution. he may infix or hold a secret or confidential informations that he wants to stay at the file. Another one is the information unity.
Other users may alter. add. or even take some information in the file if he wants to. We can non guarantee the same grade of security in a time-share machine as we have in a dedicated machine because time-share machine allows plans to run at the same clip and allows many users to utilize it at the same time. In this instance. the grade of security is less compared to the security in a dedicated machine. Time-share machine has many plans to put to death with and its focal point has been divided to the Numberss of plans every bit good as to the figure of users utilizing it. On the other manus. dedicated machine focuses for a specific undertaking and plans to be executed and for this. this machine has the higher control compared to time-share in implementing policies sing users’ handiness and control to implement the grade of security. In general. any protection strategy devised by worlds are expected to be broken besides by worlds. and as the more complex the strategy is. the more hard to rectify its execution.
