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The memory is hardware
Hardware.
Classic Mistakes are mistakes that get made over and over again. There are several. Some examples include failure to confirm that a memory allocation failed, failure to release memory when its use is completed, failure to initialize memory, continuing to use memory after it has been released, off-by-one errors in loops, failure to understand and/or handle truncation or precision issues, passing the wrong type and number of arguments to a function, failure to coordinate concurrent access to an object, failure to consider side-effects, failure to understand precedence level, and the biggest one of all... failure to understand the requirements. There are more. This is just an example list.
A failure of a computer to not post but to power on might be a bad BIOS chip, a bad CPU or perhaps faulty Memory or controller chips. Almost always a hardware failure. It could also be caused by a bad BIOS update which has corrupted the bios.
Failure of what component.
Memory chips are considered to be hardware. Compute hardware is considered to be any physical component. This also includes things such as the keyboard, mouse, monitor, and hard drive.
hardware
ROM isn't really hardware or software. ROM is Read Only Memory, which could be software or hardware. Software can be read only memory if made that way, and so could hardware.
'Memory' is hardware, and cannot be downloaded.
When your PC shuts down in all modes, this can signify a hardware or a software problem. An example of a hardware problem would be issues with the motherboard or memory. An example of software issues, are a virus, worm, or Trojan horse.
why readabilities only for hardware not software
memory, hard disk.