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command: Shell programming Mandatory Execute a simple command compress: Filesystem Optional (XSI) Compress data 4.3BSD cp: Filesystem Mandatory Copy files PDP-7 UNIX crontab: Misc Mandatory Schedule periodic background work System V csplit: Text processing Mandatory Split files based on context PWB UNIX ctags: C programming Optional (SD) Create ...
In computing, the System Management BIOS (SMBIOS) specification defines data structures (and access methods) that can be used to read management information produced by the BIOS of a computer. [1] This eliminates the need for the operating system to probe hardware directly to discover what devices are present in the computer.
Typical POST screen (AMI BIOS) Typical UEFI-compliant BIOS POST screen (Phoenix Technologies BIOS) Summary screen after POST and before booting an operating system (AMI BIOS) A power-on self-test ( POST ) is a process performed by firmware or software routines immediately after a computer or other digital electronic device is powered on.
Advanced Configuration and Power Interface (ACPI) is an open standard that operating systems can use to discover and configure computer hardware components, to perform power management (e.g. putting unused hardware components to sleep), auto configuration (e.g. Plug and Play and hot swapping), and status monitoring.
Run command with specified security context seq: Prints a sequence of numbers sleep: Delays for a specified amount of time stat: Returns data about an inode: stdbuf: Controls buffering for commands that use stdio stty: Changes and prints terminal line settings tee: Sends output to multiple files test: Evaluates an expression timeout: Run a ...
Control and Status Register (CSR) are auxiliary registers in many CPUs and many microcontrollers that are used for reading status and changing configuration, in contrast to the integer and sometimes floating registers which are used for computation. The control and status registers are often described by a register map.
Advanced power management (APM) is a technical standard for power management developed by Intel and Microsoft and released in 1992 [1] which enables an operating system running an IBM-compatible personal computer to work with the BIOS (part of the computer's firmware) to achieve power management.
For this reason, later BIOS implementations may use a small portion of BIOS flash ROM as NVRAM, to store setup data. [7] Today's UEFI motherboards use NVRAM to store configuration data (NVRAM is a portion of the UEFI flash ROM), but by many OEMs' design, the UEFI settings are still lost if the CMOS battery fails. [8] [9]