Search results
Results from the WOW.Com Content Network
A 68451 MMU, which could be used with the Motorola 68010. A memory management unit (MMU), sometimes called paged memory management unit (PMMU), [1] is a computer hardware unit that examines all memory references on the memory bus, translating these requests, known as virtual memory addresses, into physical addresses in main memory.
Memory paging creates internal fragmentation because an entire page frame will be allocated whether or not that much storage is needed. [2] Due to the rules governing memory allocation, more computer memory is sometimes allocated than is needed. For example, memory can only be provided to programs in chunks (usually a multiple of 4 bytes), and ...
However, a large page file generally allows the use of memory-heavy applications, with no penalties besides using more disk space. While a fragmented page file may not be an issue by itself, fragmentation of a variable size page file will over time create several fragmented blocks on the drive, causing other files to become fragmented.
One of the most common knocks on Google 's Android platform is its "fragmented" nature. The Android OS has to support hundreds of hardware models from dozens of manufacturers, most of whom like to ...
For devices with a larger screen, such as tablets, the taskbar is expanded in Android 14 and now shows the names of the pinned apps. [16] [18] Android 14 allows a phone to be configured as a webcam when plugged into a computer or another Android device. [19] Android 14 adds support for the new image format Ultra HDR, to take and display high ...
Similarly, a page frame is the smallest fixed-length contiguous block of physical memory into which memory pages are mapped by the operating system. [1] [2] [3] A transfer of pages between main memory and an auxiliary store, such as a hard disk drive, is referred to as paging or swapping. [4]
The page walk is time-consuming when compared to the processor speed, as it involves reading the contents of multiple memory locations and using them to compute the physical address. After the physical address is determined by the page walk, the virtual address to physical address mapping is entered into the TLB.
Critics of Google's (NAS: GOOG) Android platform for tablets, smartphones, and set-top boxes like to hold up fragmentation as a key weakness. Android comes in hundreds of flavors, with each ...