Laptop is a portable computer or laptop. The English name is notebook, portable, laptop, notebook computer, or Nb for short. It is also called laptop or laptop (Hong Kong and Taiwan call it notebook computer). It is a small, portable personal computer.
laptop 是指便携式电脑或笔记本电脑。英文名称为 NoteBook，俗称笔记本电脑。portable、laptop、notebook computer，简称 NB，又称手提电脑或膝上型电脑（港台称之为笔记型电脑），是一种小型、可携带的个人电脑。
Laptop is a portable computer or laptop. The English name is notebook, commonly known as notebook. Portable, laptop, notebook computer, or Nb for short, also known as laptop or laptop (Hong Kong and Taiwan call it notebook computer), is a small, portable personal computer.
通常重 1-3 公斤。其发展趋势是体积越来越小，重量越来越轻，而功能却越发强大。像 Netbook，也就是俗称的上网本，跟 PC 的主要区别在于其便携带方便。
It usually weighs 1-3kg. Its development trend is smaller and smaller, lighter and lighter, but more powerful. The main difference between netbooks and PCs is that they are easy to carry.
笔记本与台式机相比，笔记本电脑有着类似的结构组成(显示器、键盘/鼠标、CPU、内存和硬盘)，但是笔记本电脑的优势还是非常明显的，其主要优点有体积小、重量轻、携带方便。 一般说来，便携性是笔记本相对于台式机电脑最大的优势。一般的笔记本电脑的重量只有 2 公斤左右，无论是外出工作还是旅游，都可以随身携带，非常方便。
Compared with desktop computer, notebook computer has similar structure (display, keyboard / mouse, CPU, memory and hard disk), but its advantages are very obvious, its main advantages are small size, light weight and easy to carry. Generally speaking, portability is the biggest advantage of notebook compared with desktop computer. The weight of a general laptop is only about 2kg. It’s very convenient to carry it with you no matter when you go out to work or travel.
从用途上看，笔记本电脑一般可以分为 4 类：商务型、时尚型、多媒体应用、特殊用途。商务型笔记本电脑的特征一般为移动性强、电池续航时间长;时尚型外观特异也有适合商务使用的时尚型笔记本电脑;多媒体应用型的笔记本电脑是结合强大的图形及多媒体处理能力又兼有一定的移动性的综合体，市面上常见的多媒体笔记本电脑拥有独立的较为先进的显卡，较大的屏幕等特征;特殊用途的笔记本电脑是服务于专业人士，可以在酷暑、严寒、低气压、战争等恶劣环境下使用的机型，多较笨重。