QMS 860 Guide de l'utilisateur télécharger pdf (Page 332)

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ROM (Read Only Memory)

This type of memory contains data and/or machine-executable

instructions that can be read but not modified. On your QMS 860

Print System, the operating system code, resident fonts, and

resident emulations are stored in ROM. This information is not lost

when the printer’s power is turned off.

RAM (Random Access Memory)

RAM is the memory your printer uses to perform each task. It can

be written to and read from. Once a task is complete, the memory

is free again to be used for another file. This memory is volatile, so

if your printer loses power while a file is being sent, you must

resend the file. The number and type of features you can run on

your printer simultaneously depend on the amount of RAM you

have and how that RAM is distributed. Your printer comes with 12

MB of RAM, upgradable to 32 MB by adding Single In-line

Memory Modules (SIMMs).

RAM Disk

Also called a virtual disk, the RAM disk is an area of RAM that is

used to simulate an additional hard disk. Data can be written and

read more quickly than on a hard disk, but a RAM disk loses any

information stored on it when the printer’s power is turned off. The

frame buffer and spooling buffer are RAM disk clients.

SCSI (Small Computer System Interface)

Pronounced “scuzzy,” the printer’s SCSI port allows you to

connect up to seven hard disks, providing storage for fonts,

emulations, and other files. Hard disks are also used to increase the

Appendix F

F-4 Additional Technical Information

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QMS 860 Guide de l'utilisateur Page 332

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