Alpha Microsystems Eagle 250 Manuel du propriétaire télécharger pdf (Page 30)

Page 5-4 Chapter Five

Eagle 250 Owner's Manual, Revision 01

Adding User Names

If you need to add a user name for your computer—for example, for a new employee—you can do so

with the MUSER command. Only the System Operator can use MUSER.

To use MUSER, first log into the System Operator’s account, DSK0:[1,2] (also called OPR:):

LOG OPR:

ENTER

MUSER

ENTER

At the MUSER menu, you can type L

ENTER

to list the currently defined users, or A

ENTER

to add new

users. Besides name and password, you can define many characteristics and limits for each user. For

details, see the MUSER sheet in the AMOS System Commands Reference Manual.

When you’re done adding users, type F

ENTER

at the MUSER menu to save the changes you’ve made and

close the program.

HOW AMOS STORES INFORMATION

User names let AMOS know who you are when you type commands. But, when you want to revise the

letter you stored last week, or print the company payroll, how does AMOS know where to find the

information? By using a file specification.

A file specification contains three pieces of information: the device the information is on, the account it is

in on that device, and the file name within the account. Together, these three items uniquely identify

every file on your computer. The next few sections discuss file specifications and their parts, then

describe how to switch between accounts, and how to add more accounts if you need to.

Unless you can leave your application and enter commands from AMOS command level, you

won’t be able to use the commands mentioned in the following sections. If that’s the case, read

this information only if you’re interested in how AMOS organizes information on your disk

drive.

Device Names

AMOS identifies the different devices that make up your computer by giving each one a name. Each disk

and tape drive has its own device name (terminals and printers are defined slightly differently). These

device names are defined in the system initialization file.

Alpha Micro device names have a specific format. All device names contain three letters and a number,

and end with a colon (:): for example, DSK3:. Disk device names often start with DSK; streaming tape

drive names usually start with STR.

Having a name for each device lets you specify which device you want to use for a specific command.

For example, you can see a list of files from just one of your disk drives, or copy data from one disk to

another or to a tape drive.

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Alpha Microsystems Eagle 250 Manuel du propriétaire Page 30

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