ANSWERS
1.1
1．(1) A, C (2) C, D (3) A, D (4) A, C, D (5) B, C, D (6) A, B, C, D (7) C, D (8) A, B, C, D
2．(1) C (2) F (3) H (4) G (5) A (6) E (7) B (8) D
1.2
1．(1) D (2) E (3) C (4) B (5) A (6) F (7) G (8) H
(9) I (10) K (11) J
2．(1) D (2) F (3) I (4) B (5) H (6) A (7) E (8) J
(9) G (10) C
1.3
1．(1) A, C, D (2) B, C (3) A, B, C, D (4) A, D (5) B, C (6) B, D
(7) A (8) B, C, D
2．(1) D (2) H (3) A (4) F (5) J (6) C (7) I (8) B
(9) G (10) E
1.4
1．(1) C (2) F (3) A (4) J (5) G (6) B (7) I (8) E
(9) H (10) D
2．(1) C (2) G (3) B (4) A (5) H (6) E (7) J (8) I
(9) F (10) D
1.5
1．(1) F (2) T (3) T (4) F (5) T (6) F (7) F (8) T
(9) F (10) F
2．(1) I (2) A (3) J (4) C (5) G (6) B (7) H (8) E
(9) F (10) D
2.1
1．(1) shell (2) memory management (3) Process control block (4) blocked
(5) prevention, detection, avoidance (6) paging, segmentation (7) Buffering 2．(1) T (2) T (3) F
3．· First-come, first-served: Select the process that has been waiting the longest for service.
· Round-robin: Use time-slicing to limit any running process to a short burst of processor time, and route among all ready processes.
· Shortest process next: Select the process with the shortest expected process time and do not preempt the process.
· Shortest remaining time: Select the process with the shortest expected remaining process time. A process may be preempted when another process becomes ready.
· Highest response ratio next: Base the scheduling decision on an estimate of normalized turnaround time.
· Feedback: Establish a set of scheduling queues and allocate processes to queues based on execution history and other criteria.
2.2
1．(1) A, B, C, D (2) A, B (3) A, B, D (4) B, C, D (5) A, C, D
2．(1) 快速的用户转换让一个家庭共享一台计算机变得很容易。
(2) 开始菜单的设计是为了适应你的工作方式。
(3) 你最近访问过的5个程序首先被显示出来，而且你的电子邮件和浏览器总是随时可用的。
(4) 根据你把文件放到不同的组中，Windows XP 可以很容易地找到它们的踪迹。
(5) 在Windows XP里面，新增加的“我的音乐”文件夹使一般的音乐任务变成更容易执行。
3．(1) D (2) F (3) J (4) I (5) C (6) H (7) B (8) G (9) A (10) E
2.3
1．(1) Word processing (2) scrolling
2．(1) F (2) T (3) F (4) F (5) F
3．(1) Buttons are usually identified by a small graphic, called an icon
(2) A toolbar is a row of on-screen buttons, usually appearing immediately below the menu bar, used to activate a variety of functions of the applications program
(3) A macro is a feature that allows you to use a single keystroke, command, or toolbar button to automatically issue a predetermined series of commands
(4) The clipboard is the area where the copy is held before it is pasted
(5) The place where a row and a column intersect is called a cell
(6) The cell's position is called a cell address
(7) Formulas are instructions for calculations
(8) The degree to which one computer, attached device, data file, or program can work with or understand the same commands, formats, or language as another
2.4
1．(1) Toolbars are now absolutely flat and you can choose to hide or show buttons by clicking directly on the arrow to check or uncheck commands you don't want to use.
(2) You can dictate texts, make direct formatting changes, and navigate menus using speech and voice commands.
(3) One of the functions of Document Formatting is Reveal Formatting where at any point during the document you can see the current font, paragraph, spacing, image, table properties, and more. Also you can compare the formatting of two different sections of a document and apply the formatting of one to the other.
(4) To protect your working files when your computer occurred a fatal error and word can't offer you to save it.
(5) Document Recovery provides a safer method for shutting down Word if it is not responding.
2．(1) Microsoft Word也许是Office系列里面应用最广泛的软件。
(2) Office 10具有的另一项新功能就是语音识别。
(3) 为了帮助Office提高工作能力，微软增加了一些文档格式方面的新特性，使Office的工作变得更容易。
(4) 微软已经听说了可靠性和数据恢复方面的问题并做出了反应。
(5) 结果，你花费很少的时间去重新建档。
(6) 幻灯片设计任务栏让设计者能够更容易地找到他们的设计选项。
(7) PowerPoint增加了高品质的动画让说明更加生动。
(8) 在这次个手册中包含两个版本：Excel 2000和Excel XP。
(9) 当插入或者粘贴一个已经生成的幻灯片时，用自动布局会自动捕捉占位符的内容。
(10) 这就能够让使用者很方便地使用默认的浏览器浏览Web站点，而不必将Web站点的地址复制进他们浏览器的地址栏中。
2.5
1．(1) analog system 、digital system
(2) compressing、decompressing
(3) JPEG
(4) MPEG-2
2．A, B, C, D, E, F
3．(1) Musical Instrument Digital Interface
(2) Multimedia Personal Computer
(3) Analog Digital Converter
(4) Joint Photographic Experts Group
(5) Motion Picture Experts Group
(6) High Definition Television
(7) Video On Demand
(8) Advanced Audio Coding
(9) Phase Alternating Line
4．(1) 多媒体 (2) 视频 (3) 音频 (4) 图形 (5) 动画 (6) 分贝 (7) 帧 (8) 隔行扫描 (9) 编码 (10) 有损的
5．(1) BASE SYSTEM: A Windows-capable system with a 10MHz 286 or faster CPU; at least 2MB of RAM, a 30MB or larger hard disk, a 3.5 inch 1.44MB floppy drive; a 101-key keyboard; a two-button mouse; and parallel, serial, and joystick ports.
VIDEO:Standard VGA is all that's required. VGA+(8-bit color at standard VGA resolution) is strongly recommended.
CD-ROM:A CD-ROM drive that transfers at least 150KB of data per second without taking up more than 40 percent of the CPU's attention, plays CD audio, and has average access time of 1second or less.
AUDIO:A sound board with 8-bit, 11.025kHz sampling and 22.05kHz playback; a synthesizer capable of playing eight notes simultaneously using five different sounds; a mixer to combine CD audio, sampling, and synch; a microphone input; and MIDI in, out, and thru ports.
(2) The MPEG-1's goal is to produce video recorder-quality output (352×240 for NTSC—National Television Standards Committee) using a bit rate of 1.2Mbps. The MPEG-2 was originally designed for compressing broadcast quality video into 4 to 6 Mbps, so it could fit in a NTSC or PAL (Phase Alternating Line) broadcast channel. Later, MPEG-2 was expanded to support higher resolutions, including HDTV (High Definition Television).
(3) ①Electronic games ②Interactive video applications ③Hypermedia browsers
④ Multimedia presentation systems ⑤ Desktop conferencing systems
⑥Multimedia authoring systems
3.1
1．(1) network (2) Teleconferencing、text、voice、video (3) Broadcast networks、Point-to-point networks (4) Local Area Networks、Metropolitan Area Networks、Wide Area Networks (5) internetwork (6) bit rate、baud rate
2．(1) C (2) C
3．ISO、ITU-T、ANSI、IEEE
3.2
1．(1) baseband、broadband、baseband、broadband (2) 10、100 (3) collisions (4) token
2．(1) B (2) C (3) D (4) B (5) B
3．10BASE-5 10BASE-2 10BASE-T 10BROAD36 1BASE-5 100BASE-T
3.3
1．(1) point-to-point、store-and-forward、packet-switch
(2) bearer services、teleservices、supplementary services
(3) switched、permanent
(4) switched virtual circuit、permanent virtual circuit
(5) cells、53、5、48、cell relay
2．(1) C (2) B (3) A (4) B (5) B
3．(1) Star Ring Tree Complete
3.4
1．(1) opening (2) IP address (3) electronic (4) mail transfer
2．(1) Serial Line Internet Protocol
(2) Point-to-Point Protocol
(3) User identification
(4) Domain Name Systems
(5) User Datagram Protocol
(6) File Transfer Protocol
(7) HyperText Transfer Protocol
(8) Simple Mail Transfer Protocol
3．(1) 二进制的 (2) 请求 (3) 应答 (4) 端口 (5) 电子邮件后台程序 (6) 服务器
(7) 服务 (8) 终端会话 (9) 互联网 (10) 传输控制协议/网际协议
(11) 远程登录 (12) 源机器 (13) 目的机器
4.1
1．(1) key (2) redundancy (3) public、private (4) authentication
2．(1) 网络安全 (2) 鉴别 (3) 明文 (4) 密文 (5) 算法
3．(1) International Data Encryption Algorithm
(2) Data Encryption Standard
4.2
1．(1) B, C, D (2) A (3) A, B, C, D (4) B, C (5) A, B, D (6) B, C, D (7) A, C (8) C, D
2．(1) T (2) F (3) T (4) T (5) T
4.3
(1) D (2) F (3) J (4) A (5) H (6) C (7) E (8) I (9) B (10) G
4.4
1．(1) T (2) F (3) T (4) T (5) F (6) T (7) F (8) F (9) T (10) T (11) F (12) T
2．(1) C (2) H (3) F (4) L (5) I (6) E (7) A (8) K (9) D (10) B
(11) G (12) J