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95f51977 | 1 | .\" @(#)p0 6.1 (Berkeley) 5/23/86 |
c1bf0a19 KD |
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 |