📚 Year 8 CIE Computer Science: Vocabulary & Terminology Quick Memorisation Guide | CIE Year 8 计算机：词汇术语速记指南
Memorising technical terms in computer science can feel like learning a new language. This guide breaks down the most important Year 8 CIE vocabulary with simple definitions, real-world analogies, and clever memory tricks. Each section presents terms in paired English and Chinese explanations, so you can absorb the meanings effortlessly and recall them when it matters most – in class, in homework, and in the exam.
记忆计算机科学术语就像学习一门新语言。本指南将 Year 8 CIE 最重要的词汇用简单的定义、生活中的类比和聪明的记忆技巧拆解开来。每个小节用英中对照的方式呈现术语解释，让你毫不费力地吸收含义，在课堂、作业和考试中随时都能回想起它们。
1. Core Hardware Components | 核心硬件部件
Central Processing Unit (CPU) – The brain of the computer that executes instructions. Think of it as a chef reading a recipe: it fetches, decodes, and carries out every command. Memory tip: ‘C’ for ‘Chef’, ‘P’ for ‘Processes’, ‘U’ for ‘You’ (it does everything for you).
中央处理器 (CPU) – 计算机的大脑，负责执行指令。把它想象成一位读菜谱的厨师：它取指令、解码、然后执行每一条命令。记忆诀窍：’C’ 像 ‘Chef’，’P’ 像 ‘Processes’，’U’ 代表 ‘你’——它为你完成一切。
Random Access Memory (RAM) – Temporary, fast memory that holds data currently in use. It is like a workbench: everything you are working on right now is placed there, but once the power goes off, the bench is cleared. Memory tip: ‘RAM’ rhymes with ‘jam’ – like traffic jams, it fills up quickly and then things slow down.
随机存取存储器 (RAM) – 临时的快速存储器，存放正在使用的数据。它就像一个工作台：你当下操作的所有东西都摆放在上面，但一旦断电，台面就被清空。记忆诀窍：’RAM’ 和 ‘jam’ 押韵——就像交通堵塞，它很快被填满，然后电脑就慢下来。
Motherboard – A large circuit board that connects all components, acting as the nervous system. Analogy: the motherboard is the city map, and data travels along its roads. Tip: ‘Mother’ board because it ‘mothers’ all other parts.
主板 – 一块大型电路板，连接所有部件，相当于计算机的神经系统。类比：主板是城市地图，数据沿着它的道路移动。诀窍：’Mother’ 有 ‘母’ 的含义，因为它像母亲一样照管所有其他元件。
Power Supply Unit (PSU) – Converts mains electricity into the right voltages for the computer. Like the heart pumping blood, the PSU delivers power to every component. Tip: ‘PSU’ sounds like ‘push you’ – it pushes energy into the system.
电源供应器 (PSU) – 将交流电转换成计算机所需的合适电压。就像心脏泵血，PSU 把能量输送到每个部件。诀窍：’PSU’ 读起来像 ‘push you’——它把电力推送给整个系统。
2. Software Essentials | 软件基础
Operating System (OS) – System software that manages hardware and software resources. It is the conductor of an orchestra, telling every instrument when to play. Memory tip: ‘OS’ is the ‘boss’ that runs the show.
操作系统 (OS) – 管理硬件和软件资源的系统软件。它就像乐队指挥，告诉每一件乐器何时演奏。记忆诀窍：’OS’ 就是那个掌控一切的 ‘boss’。
Application Software – Programs designed for users, such as word processors or games. Think of apps on a phone: they are tools for specific tasks. Tip: ‘Application’ starts with ‘App’ – short for application, it applies directly to what you want to do.
应用软件 – 为用户设计的程序，如文字处理器或游戏。想想手机上的 App：它们是完成特定任务的工具。诀窍：’Application’ 以 ‘App’ 开头——应用就是直接 ‘apply’ 到你想做的事情上。
Firmware – A special type of software stored on hardware permanently. It is like the built-in instructions inside a microwave: you cannot easily change them. Memory tip: ‘Firm’ means fixed, so firmware is software that stays firmly in the device.
固件 – 永久存储在硬件中的特殊软件。就像微波炉内置的操作指令，你无法轻易更改。记忆诀窍：’Firm’ 意为固定的，所以固件就是牢牢固定（firmly）在设备内的软件。
Driver – A small piece of software that allows the OS to talk to a specific hardware device. Picture a translator between a tourist and a local. Tip: ‘Driver’ because it drives (operates) the hardware.
驱动程序 – 一小段软件，让操作系统能与特定硬件设备通信。想象一下游客和本地人之间的翻译。诀窍：’Driver’ 叫驱动程序，因为它 ‘drives’（驱动）硬件工作。
3. Data Representation | 数据表示
Bit – The smallest unit of data, representing a single 0 or 1. Analogous to a light switch that can be either off (0) or on (1). Tip: ‘Bit’ is a small bite of information – just a tiny piece.
位 (Bit) – 数据的最小单位，表示一个 0 或 1。类似于一个只有关 (0) 和开 (1) 两种状态的灯开关。诀窍：’Bit’ 是一小口信息——就那么一丁点儿。
Byte – A group of 8 bits, enough to store one character like ‘A’ or ‘7’. Think of a byte as a single letter cube in a word game. Memory tip: ‘Byte’ rhymes with ‘eight’ – a byte is 8 bits.
字节 (Byte) – 8 个位组成的一个组，足以存储一个字符，如 ‘A’ 或 ‘7’。把字节想象成文字游戏中的一个字母方块。记忆诀窍：’Byte’ 和 ‘eight’ 押韵——一个字节是 8 位。
Binary – A number system using only two digits, 0 and 1. It is the language computers speak. Analogy: binary is like Morse code – just two symbols hold all information. Tip: ‘Bi-‘ means two, as in bicycle (two wheels).
二进制 – 只使用两个数字 0 和 1 的数制。它是计算机使用的语言。类比：二进制就像摩斯密码——只用两个符号承载所有信息。诀窍：’Bi-‘ 表示二，就像 bicycle（自行车）有两个轮子。
Denary (Decimal) – The everyday number system based on ten digits (0-9). Memory tip: ‘Denary’ contains ‘ten’ in its middle – think of a den full of ten animals.
十进制 – 基于十个数字 (0-9) 的日常数制。记忆诀窍：’Denary’ 中间藏着 ‘ten’——想象一个洞穴 (den) 里住着十只动物。
4. Storage and Memory | 存储与内存
Primary Storage – Fast, directly accessible memory like RAM and ROM. It is like the top drawer of your desk – you reach it instantly but it holds only a few items. Tip: ‘Primary’ means first in line when the CPU looks for data.
主存储器 – 快速、可直接访问的存储器，如 RAM 和 ROM。它就像书桌最上面的抽屉——你能立即拿到，但只能放少量物品。诀窍：’Primary’ 意思是 CPU 查找数据时的第一选项。
Secondary Storage – Slower, non-volatile storage for long-term keeping, such as hard drives or USB sticks. It resembles a filing cabinet in another room – slower to access but holds large volumes. Tip: ‘Secondary’ comes second, after primary.
辅助存储器 – 较慢、非易失性的长期存储，如硬盘或 U 盘。它就像另一间屋子的文件柜——存取较慢，但容量巨大。诀窍：’Secondary’ 仅次于 ‘Primary’，排在第二位。
Hard Disk Drive (HDD) – Uses spinning magnetic platters to read and write data. Picture a record player: a mechanical arm moves across a spinning vinyl disc. Memory tip: ‘Hard’ because it has rigid platters; ‘Disk’ because it spins.
硬盘驱动器 (HDD) – 使用旋转的磁性盘片读写数据。想象一台唱片机：机械手臂在旋转的唱片上移动。记忆诀窍：’Hard’ 表示硬质盘片，’Disk’ 表示它旋转。
Solid State Drive (SSD) – Stores data on flash memory chips with no moving parts. Like a huge collection of USB sticks bundled together. Tip: ‘Solid’ means no moving pieces, so it is more durable and faster.
固态硬盘 (SSD) – 将数据存储在闪存芯片上，没有移动部件。就像一大堆 USB 闪存捆绑在一起。诀窍：’Solid’ 意为固态，没有可动部件，因此更耐用、更快。
5. Input and Output Devices | 输入与输出设备
Input Device – Any hardware that sends data into a computer, e.g. keyboard, mouse, microphone. Think of it as your senses: you ‘input’ information through your eyes and ears. Memory tip: ‘In’ means data goes into the computer.
输入设备 – 任何将数据送入计算机的硬件，如键盘、鼠标、麦克风。把它想象成你的感官：你通过眼睛和耳朵 ‘输入’ 信息。记忆诀窍：’In’ 表示数据进入计算机。
Output Device – Hardware that conveys information from the computer to the user, e.g. monitor, speakers, printer. Analogy: your voice is an output of your thoughts. Tip: ‘Out’ means data comes out of the computer.
输出设备 – 将计算机里的信息传达给用户的硬件，如显示器、扬声器、打印机。类比：你的声音就是你思想的输出。诀窍：’Out’ 表示数据从计算机出来。
Sensor – A device that measures physical conditions (temperature, light, motion) and converts them into digital signals. Like a digital nose or fingers. Memory tip: ‘Sense’ + ‘or’ – something that senses the world.
传感器 – 测量物理状态（温度、光线、运动）并将其转为数字信号的设备。就像数字化的鼻子或手指。记忆诀窍：’Sense’（感知）加上 ‘or’——能感知周围世界的东西。
Touchscreen – An input and output device combined; you see output and directly touch it to give input. Think of it as a window that you can tap and swipe. Tip: ‘Touch’ + ‘screen’ – you touch the screen to control it.
触摸屏 – 兼具输入和输出功能的设备；你能看到输出内容，并直接触摸它来提供输入。想象一扇可以点击和滑动的窗户。诀窍：’Touch’（触摸）加 ‘screen’（屏幕）——你摸屏幕来控制它。
6. Algorithms and Flowcharts | 算法与流程图
Algorithm – A step-by-step set of instructions to solve a problem, like a recipe for a cake. Key memory: think of ‘Al Gore rhythm’ – even a politician can follow a rhythm of clear steps.
算法 – 解决问题的分步指令集，就像蛋糕食谱。记忆关键：想想 ‘Al Gore rhythm’（阿尔·戈尔的节奏）——即使是政客也能跟着清晰的步骤节奏走。
Flowchart – A diagram that shows an algorithm using standard symbols such as ovals for start/end, parallelograms for input/output, and diamonds for decisions. Picture water flowing through different pipes and valves. Tip: ‘Flow’ because the logic flows from shape to shape.
流程图 – 用标准符号表示算法的图，例如椭圆表示开始/结束，平行四边形表示输入/输出，菱形表示判断。想象水流过不同的管道和阀门。诀窍：’Flow’ 因为逻辑从一个形状流向另一个。
Pseudocode – A way of writing algorithms using simple English-like statements, without strict programming syntax. It is the draft before the final essay. Memory tip: ‘Pseudo’ means fake – not real code, but close enough.
伪代码 – 用类似英语的简单语句书写算法的方式，没有严格的编程语法。它就像正式作文之前的草稿。记忆诀窍：’Pseudo’ 意为假的——不是真正的代码，但是足够接近。
Sequence, Selection, Iteration – The three building blocks of any algorithm: doing steps in order, making choices (if-else), and repeating actions (loops). Remember the acronym ‘SSI’ – like a ship’s signal, it guides the flow.
顺序、选择、迭代 – 所有算法的三个构建块：按顺序执行步骤、做选择 (if-else)、重复操作 (循环)。记住首字母缩略词 ‘SSI’——就像船舶的信号，它引导着流程。
7. Programming Concepts | 编程概念
Variable – A named container that stores data which can change during program execution. Think of it as a labelled box where you put a toy, and you can swap the toy later. Memory tip: ‘Vary-able’ – able to vary.
变量 – 一个有名字的容器，存储在程序运行期间可以改变的数据。把它想象成一个贴了标签的盒子，你放一个玩具进去，之后可以更换。记忆诀窍：’Vary-able’——能够变化 (vary)。
Constant – A named storage location whose value cannot change once set. Like a fixed sign with a number that never rubs off. Tip: ‘Constant’ means staying the same, just like constant velocity.
常量 – 一个命名的存储位置，其值一旦设定就不能改变。就像一块写着数字的固定标志牌，永远不会褪掉。诀窍：’Constant’ 意为恒定不变的，就像匀速运动。
Loop – A programming structure that repeats a block of code. There are count-controlled loops (for) and condition-controlled loops (while). Picture a roller coaster loop – you go around and around until conditions change. Tip: ‘Loop’ forms a circle; what goes around comes around.
循环 – 重复执行一段代码的编程结构。有计数控制循环 (for) 和条件控制循环 (while)。想象过山车的环——你一圈一圈地绕，直到条件改变。诀窍：’Loop’ 形成一个环；绕来绕去。
Conditional Statement (IF-ELSE) – Lets the program make decisions. ‘If it is raining, take an umbrella; else, wear sunglasses.’ Memory tip: ‘IF’ opens a choice, ‘ELSE’ provides the alternative – just like in real life.
条件语句 (IF-ELSE) – 让程序做出决策。’如果下雨，带伞；否则，戴墨镜。’ 记忆诀窍：’IF’ 开启一个选项，’ELSE’ 提供另一个——就像现实生活一样。
8. Computer Networks | 计算机网络
LAN (Local Area Network) – A network covering a small geographical area, such as a school or office building. Picture all computers in one room connected by cables or Wi‑Fi. Tip: ‘Local’ = limited location.
局域网 (LAN) – 覆盖较小地理区域的网络，如一所学校或办公楼。想象一个房间里的所有电脑通过电缆或 Wi‑Fi 连接起来。诀窍：’Local’ 意为局部的，地点有限。
WAN (Wide Area Network) – A network spanning large distances, often connecting multiple LANs; the internet is the largest WAN. Analogy: a WAN is like a system of motorways linking cities. Tip: ‘Wide’ as in the whole wide world.
广域网 (WAN) – 跨越长距离的网络，通常连接多个局域网；互联网就是最大的广域网。类比：WAN 就像连接城市的公路系统。诀窍：’Wide’ 意为广阔的，像整个世界那样广阔。
Router – A device that directs data packets between networks, choosing the best path. Think of a postal sorting office that decides which truck your parcel should use. Memory tip: ‘Router’ sounds like ‘route-er’ – it finds the route.
路由器 – 指引数据包在网络之间传输、选择最佳路径的设备。想象一个邮件分拣处，决定你的包裹该上哪辆卡车。记忆诀窍：’Router’ 读作 ‘route-er’——它负责找路线 (route)。
Switch – Connects devices within a LAN and sends data only to the intended device, not everyone. Like a telephone exchange that connects you directly to your friend. Tip: ‘Switch’ because it switches connections intelligently.
交换机 – 在局域网内连接设备，只将数据发送给目标设备，而不是所有人。就像电话总机直接将你连接到朋友。诀窍：’Switch’ 意为转换，它聪明地转换连接。
9. The Internet | 互联网
Internet – A global network of interconnected computers using TCP/IP protocols. It is the physical infrastructure – cables, routers, satellites. Memory aid: ‘Inter’ means between, ‘net’ means network; it is the network between networks.
互联网 (Internet) – 使用 TCP/IP 协议互联的全球计算机网络。它是物理基础设施——电缆、路由器、卫星。记忆辅助：’Inter’ 意为之间，’net’ 意为网络；它就是网络之间的网络。
World Wide Web (WWW) – A service that runs on top of the internet, consisting of interlinked web pages accessed via browsers. Think of the internet as the roads, and the web as the delivery trucks carrying web pages. Tip: ‘Web’ because pages are linked like a spider’s web.
万维网 (WWW) – 运行在互联网之上的服务，由通过浏览器访问的相互链接的网页组成。把互联网想象成道路，把网络想象成运载网页的送货车。诀窍：’Web’ 因为页面像蜘蛛网一样互相链接。
URL (Uniform Resource Locator) – The address of a web resource. Just like your home address, it tells the browser exactly where to go. Memory tip: ‘URL’ = ‘You Are Locating’ a page.
统一资源定位符 (URL) – 网络资源的地址。就像你家的地址，它告诉浏览器该去哪里。记忆诀窍：’URL’ 可以记成 ‘You Are Locating’（你在定位）。
HTTP / HTTPS – Protocol for transferring web pages. HTTPS adds encryption (the ‘S’ stands for secure). Analogy: HTTP is a postcard anyone can read; HTTPS is a sealed envelope. Tip: Look for the padlock symbol in the address bar for HTTPS.
HTTP / HTTPS – 传输网页的协议。HTTPS 增加了加密（’S’ 代表安全）。类比：HTTP 是明信片，谁都能看；HTTPS 是密封的信封。诀窍：在地址栏查看挂锁图标以确认 HTTPS。
10. Staying Safe Online | 安全上网
Malware – Malicious software that harms a computer system. Short for ‘malicious software’. Types include viruses, worms, and spyware. Memory tip: ‘Mal’ sounds like ‘bad’ in Spanish (malo), so malware = bad-ware.
恶意软件 – 破坏计算机系统的有害软件。是 ‘malicious software’ 的缩写。类型包括病毒、蠕虫和间谍软件。记忆诀窍：’Mal’ 在西班牙语中意为 ‘坏’，所以 malware 就是坏软件。
Phishing – A scam where attackers pretend to be trustworthy entities to steal personal information. The word sounds like ‘fishing’ – they throw bait (fake emails) to hook victims. Tip: ‘PH’ replaces ‘F’ to look hi‑tech, but the danger is real.
网络钓鱼 – 攻击者冒充可信实体盗取个人信息的骗局。这个词听起来像 ‘fishing’（钓鱼）——他们抛出诱饵（虚假邮件）来钩住受害者。诀窍：’PH’ 代替 ‘F’ 显得很科技，但危险是真的。
Firewall – A system that monitors and controls incoming and outgoing network traffic based on security rules. Picture a security guard checking everyone who enters and leaves a building. Memory tip: ‘Fire’ suggests danger; the ‘wall’ blocks it.
防火墙 – 根据安全规则监控和控制进出网络流量的系统。想象一个保安检查每个进出大楼的人。记忆诀窍：’Fire’ 意味着危险，’wall’（墙）挡住它。
Encryption – The process of converting data into a code to prevent unauthorised access. Like writing a secret message in a cipher only you and your friend can decode. Tip: ‘En’ + ‘crypt’ – putting into a crypt (hidden vault).
加密 – 将数据转换成密码以防止未经授权的访问。就像用只有你和你朋友能解码的暗号写密信。诀窍：’En’ + ‘crypt’——放进地窖（crypt）里藏起来。
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