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2 ( ) 1

3 3 20% %15 30% ( ) 2

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6 2006 IT J. Glenn Brookshear KADOKAWA 2014 COMPUTER SCIENCE: An Overview, 11th edition (2012) ( ) 5

7 computer ( ) 6

8 CPUCentral Processing Unit SSDsolid state drive CDDVDBlu-ray ( ) 7

9 (10) = (2) = CPUIntegrated CircuitIC ( ) 8

10 n 02 n n 1 2 n 1 1 x 2 y x = 1.x 1 x 2 x 3 x 4...y A65ASCII ( ) 9

11 b n a b n a b b n a 1 b 1 21 IEEE Shift-JISJISUnicodeUTF-8EUC ( ) 10

12 1 1B 8 1 1kB KiB 1MB = 10 6 B GB = 10 9 B TB = B PB = B EB = B ZB = B YB = B 2 80 ( ) 11

13 CPU L1L2L3L4 32CPU132 ( ) 12

14 CPU CPU 1 ( ) 13

15 CPU CPU ADD, SUB, MUL, DIV: LOAD, STORE: JUMP: JUMPZERO: 0JUMP HALT: PRINT: 1100 ( ) 14

16 37 LOAD ADD STORE LOAD ADD STORE LOAD SUB JUMPZERO JUMP LOAD PRINT 49 HALT ( ) 15

17 2CPU 11 CJavaRubyLispFortranJavaScript ( ) 16

18 C C #include<stdio.h> int main(){ int i, sum = 0; for(i=1;i<=100;i++){ sum = sum + i; } printf("%d\n", sum); return 0; } ( ) 17

19 n = n(n +1)/2111 ( ) 18

20 ( ) 19

21 code x 1 x 0 x ( ) 20

22 p log p 1 1log6 log2 1 log3 log2 + log3 = log6 ( ) 21

23 A PA 1 P H = P logp (1 P)log(1 P) A 1, A 2,..., A k A i P i k P i logp i i =1 ( ) 22

24 k A 1, A 2,..., A k 01 k = 4 A 1 0, A 2 1, A 3 01, A A 1 A 4 A 3 A 2 A 1 A 2 A 1 ( ) 23

25 A 1 0, A 2 01, A 3 011, A A 2 A 1 A A 2 A 1 A 3 A 1 00, A 2 01, A 3 10, A 4 11 A 1 0, A 2 10, A 3 110, A A 1 01, A 2 10, A 3 110, A ( ) 24

26 L 1,L 2,...,L k 2 L i 1OK A i P i L i = log 2 P i P i log 2 P i log L i ( ) 25

27 L i ( ) 26

28 jpegmp3 ( ) 27

29 2 t f (t) f (0), f (T ), f (2T ), f (3T ),...T T 2π/T f (t) f (t)αsin(kt + β), k π/t f (0), f (T ), kHz ( ) 28

30 OS WindowsMacUnixLinux GUI ( ) 29

31 OS 2 3 Web 4 ( ) 30

32 OS 2 3 Web 4 ( ) 31

33 = + ( ) 32

34 OSI ( ) 33

35 LAN, Local Area Network WAN (Wide) LAN CSMA/CDcarrier sense multiple access with collision detection ( ) 34

36 IPinternet protcolip IPv432IPv6128 IP / DNS amp.i.kyoto-u.ac.jp jpac DNSIP ( ) 35

37 TCPUDP TCPtransport control protocol HTTPFTPPOP3SMTP UDPuser datagram protocol ( ) 36

38 x, y GCD(x, y) n,c 1,c 5,c 10,c 50,c 100,c 500 k c k n ( ) 37

39 a 1, a 2,..., a n O(n 2 )O(1) O(n logn)o(n) O(n logn)o(n 2 )O(1) O(n(max(a k ) min(a k )))O(max(a k ) min(a k )) ( ) 38

40 n w k c k v v 12 n = 10 n = 100 ( ) 39

41 n w k c k v v ( ) 40

42 P=N Pn O(n k )k Z 0 NPn O(n k ) NPNP NP NP NP P NPNPNP P NPP=NP100 ( ) 41

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only my information 1 only my information 2010 17 Special thanks 17 2006 2010 60 90 A4 2 1 1 CD 2 3 A B A B A 1/4 B B 3/4 1. 2. A 3 A 3. B 3 B http://www.edu.c.utokyo.ac.jp/edu/information.html only my information 2 2006

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