A hard disk drive is cheaper and it always has 500GB – 1TB storage. How should we choose? I think it depend on how to use your computer. If you want your computer performance faster, you should use SSD. If you feel your computer performance is enough for you and you want more storage, you can use HHD.
I will be describing a Term – Computer Virtualization; exploring what it is and what benefit is reaped in the real world.  Computer Virtualization transforms server hardware into software. Using software to transform, or “virtualizes” the hardware resources of a server—including the CPU, RAM, hard disk and network controller—to create fully functional virtual machines that can run their own operating systems(OS) and applications(apps). Multiple virtual machines share hardware resources without interfering with each other so several operating systems and applications can run at the same time on a single server. This reduces the amount of hardware, power and storage space required to run multiple servers by a substantial percentage, which in turn reduces costs.
It also has two operating modes, which are real mode and protected mode. The real mode is basically for normal DOS operations and it uses only 8086 code (8086 was the previous CPU). When it was in protected mode the CPU is able to access beyond the 1mb address limit and employed its added features, which were intended for multi-tasking operations such as Windows, but this CPU is not powerful enough to carry out these multi-tasking operations. The 286 came with a bus width of 16-bit internal, 24-bit address, and 16-bit external, with an external speed of between 6MHz – 25MHz, and an internal speed of between 6MHz – 25MHz. The next CPU was the 386, this is also no longer produced it had a slightly faster running speeds which are between 16MHz to 40MHz.
Virtual memory also makes better use of memory by loading in just a few pieces. This means at any one time, only a few pieces of any given process are in memory, therefore, more processes can be maintained in memory. For virtual memory to be realistic and effectual, two ingredients are needed. First, there must be hardware support for the paging and/or segmentation scheme to be employed. Second, the operating system must include software for managing the movement of pages and/or segments between secondary memory and main memory.
Type in a Session Name and select the Image File from the disk images directory on the network. 3. Start up Client PCs with the unique Boot Disks and load ghost.exe. From the Ghost Server, you should see the IP Addresses of the Clients appear in the window as each Client PC loads the Ghost program. 4.
There is also a limit of memory a computer can have that should be checked as well as a recommended speed. If everything checks out giving a computer more memory is as simple as plugging it into the motherboard. (Raymond) Works Cited C.M.B. Yahoo voices. 16 july 2008.
For DB2 v8.1 when installed into a windows environment you will need a minimum of a Pentium or Pentium compatible processor, at least 256mb of ram, and between 100 and 350mb of hard disk space depending on whether the installation is compact, custom, or typical. Depending of the file format of the disk drives additional space may be needed by DB2 because of cluster sizes (Chigrik, 2003). Oracle 9i on the other hand requires a minimum of 128b of ram in a windows environment, although 256mb is recommended. Oracle also requires a minimum of 200mb of virtual memory for file swap space. In terms of processors, Oracle specifies a minimum of a Pentium 166 or higher.
How to Upgrade Your PC's Memory A memory upgrade is the easiest and most cost-effective upgrade that you can make to increase the performance of your personal computer (PC). The RAM, or random access memory, temporarily holds data and instructions as the central processing unit (CPU) processes them. As you increase your PC's RAM, its performance will be faster, and it will have fewer program or system crashes. When you purchase a PC, it usually will not come with the maximum amount of RAM possible, leaving you room to upgrade the amount. The process of adding additional RAM memory modules is relatively easy to do yourself if you have a basic understanding of how to operate a computer and how to operate Windows XP.
There are three types of memory that Windows 3.x can use or provide (conventional, extended, and expanded). Conventional memory is the first 640K of memory in your machine. MS- DOS has a limit of 1024K of addressable memory (conventional memory plus the UMA), and all MS-DOS applications must run within this conventional memory. All Windows 3.x operating modes share this limitation for running MS-DOS applications, but standard and 386 enhanced modes break the 640K limitation for running Windows applications. Windows 3.x enhanced mode can create multiple virtual MS- DOS machines (Memory).
A SAN carries only I/O traffic between servers and doesn’t carry any general-purpose traffic such as e-mail. Storage area networks remove data traffic, like backup processes, from the production network giving IT managers a strategic way to improve system performance and application availability. As SAN technology develops, it is growing beyond the use of any one kind of technology. A SAN can be configured to use a number of protocols such as IP or Fibre Channel over a network medium like Ethernet or ATM. FC over Ethernet supports up to 1.06 Mbps.