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1.1 root 1: .\" @(#)p0 6.1 (Berkeley) 5/23/86
2: .\"
3: .EH 'USD:2-%''LEARN \(em Computer-Aided Instruction on UNIX'
4: .OH 'LEARN \(em Computer-Aided Instruction on UNIX''USD:2-%'
5: .\".RP
6: ....TM "79-1274-xx 79-1273-yy" 39199 39199-11
7: ....ND June 18, 1976
8: ....TM "76-1274-6 76-1273-5" 39199 39199-11
9: .TL
10: LEARN \(em Computer-Aided Instruction on UNIX
11: .br
12: (Second Edition)
13: .AU "MH 2C-518" 6021
14: Brian W. Kernighan
15: .AU "MH 2C-569" 6377
16: Michael E. Lesk
17: .AI
18: .MH
19: .AB
20: .PP
21: This paper describes the
22: second version of the
23: .I
24: learn
25: .R
26: program for interpreting CAI
27: scripts on
28: the
29: .UX
30: operating system,
31: and a set of scripts that provide a computerized introduction
32: to the system.
33: .PP
34: Six current scripts cover basic commands and file
35: handling, the editor, additional file handling commands, the
36: .I
37: eqn
38: .R
39: program for mathematical
40: typing,
41: the ``\-ms'' package of formatting macros,
42: and an introduction to the C programming language.
43: These scripts now include a total of
44: about 530 lessons.
45: .PP
46: Many users from a wide variety of backgrounds have used
47: .I learn
48: to acquire basic UNIX skills.
49: Most usage involves the first two scripts,
50: an introduction to
51: .UX
52: files and commands, and
53: the
54: .UX
55: editor.
56: .PP
57: The second version of
58: .I learn
59: is about four times faster than the previous one
60: in CPU utilization,
61: and much faster in perceived time
62: because of better overlap of computing and printing.
63: It also requires less file space than the first version.
64: Many of the lessons have been revised;
65: new material has been added to reflect changes
66: and enhancements in
67: .UX
68: itself.
69: Script-writing is also easier
70: because of revisions to the script language.
71: .AE
72: .CS 11 2 13 4 0 0
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