第一章和第二章

第一章
洋葱
steve BOB
virtual games and national security
Ethical Issues
FIGURE 1.1 The layers of a computing system
Reprinted by permission of Dan Piraro.
FIGURE 1.2 A car engine and the abstraction that allows us to use it
FIGURE 1.3 Marcel Duchamp discussing his abstract painting Nude Descending a Staircase
vencacolrab/iStock/Thinkstock
FIGURE 1.4 The Colossus, the first all-programmable digitalcomputer
FIGURE 1.5 The ENIAC, a World WarII–era computer
FIGURE 1.6 A vacuum tube
FIGURE 1.7 A transistor, which replaced the vacuum tube
Ada
FIGURE 1.8 Language layers in the first generation
FIGURE 1.9 Language layers in the second generation
FIGURE 1.10 The layers of software surrounding the hardware continue to grow
The Big Ideas of Computing
第二章
943
1576
492
2748
86
Courtesy of Theresa DiDonato
27091
Courtesy of IBM Corporate Archives
number 7
carry
borrow
BINARYOCTALDECIMAL
754
86
86-1
four number
2748
171
10
Admiral Hopper

posted @ 2021-09-23 17:54  20201307梁辰鱼  阅读(21)  评论(0)  编辑  收藏  举报