HP QMS 1660E - Manual (Page 109)

Memory
5-11 Additional Technical Information
together. Your QMS 1660E Print System documentation uses the fol-
lowing memory terms:
Memory
Memory allows your printer to store and retrieve information. It’s the
space within your printer where information is stored while being
actively worked on.
Memory Client
A memory client is a user of a block of memory dedicated to a specific
function. Each memory client controls certain features. When insuffi-
cient memory is allocated to a specific client, the features it controls
may not be accessible.
Excess Memory
Some printers designate one or two memory clients to receive all the
excess, or undesignated, memory. On your QMS 1660E Print System
excess memory is distributed among all the memory clients.
Storage
Storage is a device in (or on) which information can be kept. There
are three main types of storage—ROM, RAM, and hard disk drives.
ROM stores read-only data, RAM represents temporary storage, and
hard disk drives hold information on a more permanent basis (see the
following definitions).
ROM (Read Only Memory)
This type of memory contains data and/or machine-executable
instructions that can be read but not modified. 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.