| A | B |
|---|
| Hard disk drive space is manipulated to seem like RAM. | virtual memory |
| Virtual memory is the basis of | multitasking in Windows 9x |
| Windows 3.X and 9x all implement virtual memory in files called | swap files. |
| Software creates virtual memory by swapping files between | RAM and the hard disk drive |
| , virtual memory is the slowest | of any memory model. |
| A permanent swap file is always | present and is a constant size. |
| A temporary swap file is created when Windows | starts, and has a variable size |
| Control of Windows 95 (also Windows 98 and ME) Virtual Memory operations is established through the | Control Panel [System][Performance] tab |
| The default and recommended setting for virtual memory managementis | Let Windows manage my virtual memory settings |
| The Windows 2000 swap file (page file) is named | pagefile.sys |
| The Windows 2000 swap file (page file) is created when Windows 2000 is installed and its default size is | typically set at 1.5 times the amount of RAM installed in the system. |
| Setting aside a portion of RAM to emulate a drive can create a | RAM drive |
| data stored on the RAM DRIVE exists only in | RAM, it is cleared on each reboot. |
| This command is entered in the CONFIG.SYS will create a RAM drive | DEVICE=C: \DOS\RAMDRIVE.SYS 4096 |
| Memory conflicts can be caused by | two memory managers running at the same time. |
| a third party memory manager should never be used with one that is | supplied with MS-DOS |
| Memory conflict can lead to a condition called | General Protection Fault (GPF). |
| A GPF will typically occur when an application attempts | to use a memory address or space owned by another application |
| GPF will typically occur when an application | tries to interact with a failing hardware driver |
| General Protection Fault occur when an application tries | to have direct access to the system hardware |
| A GPF is usually manifested by a | stalling (not responding) of the system or the specific application(s) that was running |
| one way of resolving a General Protection Fault (GPF) is to | reassign different memory areas by using the various memory management and optimization tools |
| Real mode memory addressing means that software, such as DOS or its applications, can | address only 1,024 KB (1 MB) of RAM. |
| real mode means that the microprocessor chip addresses the first 1,024 bytes of "conventional and upper memory" by | actually assigning real addresses to real locations in memory. |
| protected mode allows one program to fail without | bringing down the whole system. |
| When running in protected mode, a program is limited to | its own memory space allocation, but it can access memory above 1MB |
| Before programs that run concurrently are truly safe from one another's actions, the microprocessor (along with other system chips) requires | an operating system that can work to provide that protection. |
| Just about every operating system other than DOS runs | in protected mode. |
| The two main types of memory are | physical memory (RAM), also known as system memory, and virtual memory. |
| Use CONFIG.SYS and AUTOEXEC.BAT to | optimize the system. |
