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A null pointer is usually represented as a pointer to address 0 in the address space; many operating systems set up the MMU to indicate that the page that contains that address is not in memory, and do not include that page in the virtual address space, so that attempts to read or write the memory referenced by a null pointer get an invalid ...
Machine code monitor in a W65C816S single-board computer, displaying code disassembly, as well as processor register and memory dumps Apple II 6502 machine code monitor. A machine code monitor (a.k.a. machine language monitor) is software that allows a user to enter commands to view and change memory locations on a computer, with options to load and save memory contents from/to secondary storage.
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Out of memory screen display on system running Debian 12 (Linux kernel 6.1.0-28) Out of memory (OOM) is an often undesired state of computer operation where no additional memory can be allocated for use by programs or the operating system. Such a system will be unable to load any additional programs, and since many programs may load additional ...
Performance Monitor (known as System Monitor in Windows 9x, Windows 2000, and Windows XP) is a system monitoring program introduced in Windows NT 3.1. It monitors various activities on a computer such as CPU or memory usage. This type of application may be used to determine the cause of problems on a local or remote computer by measuring ...
Firmware is commonly stored in an EEPROM or Flash memory, [1] which makes use of an I/O protocol such as SPI. In computing, firmware is software that provides low-level control of computing device hardware. For a relatively simple device, firmware may perform all control, monitoring and data manipulation functionality.
Blue screen errors have existed since the first beta release of Windows 1.0; if Windows found a newer DOS version than it expected, the boot screen would have the text "Incorrect DOS version" alongside other messages detailing what check failed to pass appended into it before starting normally. [4]
Version 2 (as defined in 861-A) added the capability to designate a number of DTDs as "native" (i.e., matching the resolution of the display) and also included some "basic discovery" functionality for whether the display device contains support for "basic audio", YC B C R pixel formats, and underscan.