1 :Info: carriage_return.gi: 02/04/82 carriage return
 2 
 3      A "carriage return" means that the typing mechanism moves to the
 4 first column of the next line.  On the Multics system, this action
 5 is the result of the ASCII line-feed character.  The terminal type
 6 determines which keys the user presses to perform the equivalent
 7 action (e.g., RETURN, LINE SPACE, or NL).
 8 
 9 
10 :Info: character.gi: 02/04/82 character
11 
12      A hardware-related unit of information that on the Multics system
13 is 9 bits or 6 bits.  The Multics system native-mode character set is
14 9-bit ASCII, although the hardware does support additional character
15 sets.
16 
17 
18 :Info: closed_subsystem.gi: 02/04/82 closed subsystem
19 
20      A separate environment that bears no resemblance to and has no
21 knowledge of the Multics system itself.
22 
23 
24 :Info: command.gi: 02/04/82 command
25 
26      A program designed to be called by typing its name at a terminal.
27 Most commands are system-maintained, but any user program that takes
28 only character-string input arguments and no output arguments can be
29 used as a command.
30 
31 
32 :Info: command_level.gi: 02/04/82 command level
33 
34      The process state in which lines input from a user's terminal
35 are interpreted by the system as a command (i.e., the line is sent to
36 the command processor).  A user is at command level at login when a
37 command completes or encounters an error, or is stopped by issuing the
38 quit signal.  Command level is normally indicated by a ready message.
39 
40 
41 :Info: command_line.gi: 03/05/82 command line
42 
43      The line on which command instructions are given to Multics; it
44 includes a command name, arguments to that command, if any, and a
45 newline.
46 
47 
48 :Info: command_processor.gi: 02/04/82 command processor
49 
50 The program that interprets the lines input at command level and calls
51 the appropriate programs, after processing parentheses and active
52 functions.
53 
54 
55 :Info: control_argument.gi: 02/04/82 control argument
56 
57      An argument to a command that specifies the command's execution
58 in some way.  System control arguments begin with a hyphen, such as
59 -all, -long, or -hold.  The meaning of each control argument accepted
60 by a specific command is given as part of the description of the
61 command.  Many control arguments have standard abbreviations such as
62 -lg for -long.  See control_arguments.gi.info for a list of commonly
63 used control arguments and their short names.
64 
65 
66 :Info: crash.gi: 02/04/82 crash
67 
68      There are two types of crash:  FNP crash and system.
69 
70      An FNP crash is an unplanned termination of service from the
71 front-end network processor causing a disconnection of the process.
72 The process can be saved and reconnected with the -save_on_disconnect
73 control argument to the login command, or the save_on_disconnect
74 command.  See also process_preservation.gi.info.
75 
76      A system crash is an unplanned termination of system availability
77 caused by problems in hardware and/or software, often signalled by the
78 message: MULTICS NOT IN OPERATION.  Processes cannot be reconnected
79 after a system crash.  See damaged_segments.gi.info.
80 
81 
82 :Info: cursor.gi: 03/05/82 cursor
83 
84      The blinking square or underscore that marks your current
85 position on a video terminal.