Using external memory can vastly improve your computing experience. Since external memory is generally portable, this can allow you to bring your files wherever you would like. Even if your external memory is one of the rare devices that isn't portable, it still allows you to save space on the inside of your computer. This makes external memory better in these characteristics. However, there is a slight increase in the price and the data transfer rate may be slightly slower. You should carefully weigh whether portability and space saving is more important than a slightly higher price and slower transfering.
memory management
Depending on the PDA there are external memory storage which features an additional memory card that you are attached to the the PDA.
External fragmentation in an operating system can be mitigated through several techniques. One effective method is compaction, where the OS periodically rearranges memory contents to consolidate free space into larger contiguous blocks. Additionally, using paging or segmentation can help eliminate external fragmentation by breaking memory into fixed-size blocks, allowing processes to be loaded into non-contiguous memory locations. Lastly, employing memory allocation strategies like best-fit or buddy allocation can optimize space usage and reduce fragmentation.
external fragmentation
hardware
yes
Internal memory on a computer is kept on the hard drive. The hard drive holds the memory for all things downloaded to the computer, and all web sites visited. External memory is usually kept on a device like a USB memory stick or a CD. External memory can be accessed by plugging it into the computer.
RAM
External fragmentation describes the situation where free memory blocks are scattered throughout the memory space, which can make it challenging to find contiguous blocks of memory for larger programs or data. This can slow down the memory allocation process and waste memory resources. Techniques such as compaction or paging are used to reduce external fragmentation and ensure efficient memory utilization.
You may have noticed that the only options you have to format your external memory drive are FAT and FAT32 file systems. In Windows XP, this is the default that is set up for this behavior. Consequently, some users may want to take advantage of the extra features that are available by reformatting their drive in NFTS, which can be done with a little extra work. This is how to format your external memory drive with NTFS format. • The first step to take is to connect your external memory drive to the computer. Then, right-click on My Computer and select Manage. • Once you have done that, you want to click on Device Manager and double click on Disk Drives. After those steps are followed, your memory drive should be listed as “Generic (name of your drive)” or something close to that. • Right click your memory drive and select Properties. Once that appears, select the Policies tab. • You will see “optimize for quick removal” as default, but you can change that by selecting the “Optimize for performance” option. By doing this, it enables writing caching on the external memory drive and will therefore allow you to format it as NTFS. • Once you have done that, click OK. • Go to My Computer. Right click on the drive in My Computer. Select Format. • If you have followed the steps correctly, then you should see the option for NTFS in the File Systems drop down menu. Reformatting an external memory drive may not be needed for everybody. However, for those who want to add and deny permissions on individual files and folders or take advantage of Window XPs built-in encryption, than this is the necessary process to take to format your memory drive into NTFS.
There are many different things you can do to improve your memory. Brain puzzles and exercises are great for your memory.
Definitely an External hard disk is better than the flash memory because of it's stability.