The physical portion of the computer.
Central processing unit. The computer chip primarily responsible for executing
The screen for viewing computer information is called a monitor.
The main printed circuit board in a computer that carries the system buses. It is
10 equipped with sockets to which all processors, memory modules, plug-in cards,
daughterboards, or peripheral devices are connected.
Computer memory is used to temporarily store data. In reality, computer memory is
only capable of remembering sequences of zeros and ones, but by utilizing the binary
15 number system it is possible to produce arbitrary rational numbers and through clever
formatting all manner of representations of pictures, sounds, and animations. The most
common types of memory are RAM, ROM, and flash.
Random access memory. A data storage device for which the order of access to
20 different locations does not affect the speed of access, except for bursts. Data is typically
stored in RAM temporarily for use by the process or while the computer is operating. FPM,
EDO, SDRAM, DDR, etc. are all types of RAM.
Read-only memory is similar to RAM. It only cannot be altered and does not lose its
25 contents when power is removed.
In computer parlance a mouse can be both the physical object moved around to control
a pointer on the screen, and the pointer itself. Unlike the animal, the proper plural of
computer mouse is “mouses”.
A keyboard on a computer is almost identical to a keyboard on a typewriter. Computer
keyboards will typically have extra keys; however, some of these keys (common examples
include Ctrl, Alt) are meant to be used in conjunction with other keys just like shift on a
regular typewriter. Other keys (common examples include Insert, Delete, Home, End, Help,
35 function keys,etc.) are meant to be used independently and often perform editing tasks.
Keyboards on different platforms will often look slightly different and have somewhat
different collections of keys. Some keyboards even have independent shift lock and caps
lock keys. Smaller keyboards with only math-related keys are typically called “keypads”.
40 A disk is a physical object used for storing data. It will not forget its data when it loses
power. It is always used in conjunction with a disk drive. Some disks can be removed from
their drives, and some cannot. Generally it is possible to write new information to a disk in
addition to reading data from it, but this is not always the case.
45 An extremely common type of removable disk. Floppies do not hold too much data,
but most computers are capable of reading them. Note that there are different competing
format used for floppies, so that a floppy written by one type of computer might not
directly work on another, also sometimes called “diskette”.
50 A really fast type of serial port that offers many of the best features of SCSI without
the price. Faster than many types of parallel port, a single USB port is capable of chaining
many devices without the need of a terminator. USB is much slower (but somewhat less
expensive) than Firewire.
55 Connection to a CPU that provides a data path between the CPU and external devices,
such as a keyboard, display, or reader. It may provide input only, output only, or both input
hardware [[ a[ a[ ar d] n. 硬件
monitor [[ oni t or ] n. 监视器
motherboard [[ ot her boa ] n. 主板
memory [[ em yb]
or n. 记忆；回忆；存储器
mouse [[ ous ] n. 鼠标
keyboard [[ eyboar ] n. 键盘
disk [[ i s k] n. 磁盘，圆盘，唱片
floppy [[ l oppy] adj. 软的
instruction [[ ns t r uct i on] n. 指令；命令，指示，用法说明
screen [[ cr een] n. 屏；屏幕
view [[ i ew] n. 视域，观察，观看
information [[ nf or m i on]
at n. 消息，信息；通知
equip [[ qui p； ] vt. 装备，配备
socket [[ ocket ] n. 插座，孔
temporarily [[ em ar i l y说
por ] adv. 暂时地，临时地
remember [[ em ber ]
em vt. 记得，想起；记住
sequence [ [ equencei ] n. 连续，继续；次序
animation [[ ni m i onl y]
at n. 动画片，卡通
type [[ ype ] n. 类型；样式
pointer [[ oi nt er ] n. 指针，指示器
typewriter [[ ypew i t er ]
r n. 打字机
conjunction [[ onj unct i on说] n. 接合，连接；连接词
perform [[ er f or m ] vt. 履行；表演
task [[ as k演 ] n. 任务，工作，作业
keypad [[ eypad作 ] n. 键区，数字按键键盘
store [[ t or ] vt. 存储，储藏
diskette [[ i s ket t ] n. 磁盘
input [[ nput t ] vt. 输入
output [[ ut put t ] n. 产量；输出量；输出
I/O port 输入输出接口
circuit board 电路板
in reality 事实上
extra key 扩充键
be used in 用于
disk drive 磁盘驱动器
remove from … 从……删除
in addition to 除……之外
removable disk 可移动磁盘 3
external device 外部设备 第
serial port 串行接口 1
be capable of 能够，具有……的能力 章
CPU (Central Process Unit) 中央处理器
RAM (Random Access Memory) 随机存储器
ROM (Read Only Memory) 只读存储器
USB (Universal Serial Bus) 通用串行总线
SCSI (Small Computer System Interface) 小型计算机系统接口
 It is equipped with sockets to which all processors, memory modules, plug-in cards,
daughterboards, or peripheral devices are connected.
本 句 中 ， to which all processors, memory modules, plug-in cards, daughterboards, or
peripheral devices are connected 是一个由介词 + 关系代词引导的定语从句，修饰先行词
sockets ， 表 示 的 意 思 是 all processors, memory modules, plug-in cards, daughterboards, or
peripheral devices are connected to the sockets. be equipped with 的意思是“具有，装备有”；
be connected to 表示“与……连接”。
 … but by utilizing the binary number system it is possible to produce arbitrary rational
numbers and through clever formatting all manner of representations of pictures, sounds, and
本句中， by utilizing the binary number system 和 through clever formatting 是介词短语
做方式状语。 it 是形式主语，真正的主语是动词不定式短语 to produce arbitrary rational
numbers 。在 all manner of representations of pictures, sounds, and animations 前省略了 it is
possible to produce。
 Generally it is possible to write new information to a disk in addition to reading data
from it, but this is not always the case.
本句中，write …to … 的意思是“把……写到……” ; in addition to 的意思是“除了……
之外”，等于 besides；this 指的是它前面的整个句子；case 的意思是“情况”。
 Faster than many types of parallel port, a single USB port is capable of chaining many
devices without the need of a terminator.
本句中，Faster than many types of parallel port 是一个形容词短语做原因状语。
Ex. 1 根据课文内容，回答以下问题。
1. What is the main function of CPU?
2. Through what computer information can be viewed?
3. What kind of devices can be connected to the sockets in the motherboard?
4. What kind of system is utilized in order that arbitrary rational numbers can be produced
5. How can all manner of representations of pictures, sounds and animations be produced?
6. What is the difference between RAM and ROM?
7. What is the plural form of the noun “mouse” when it is used as an input device of the
8. What disks can be removed from their drives, what can’t?
9. Why is a single USB port capable of chaining many devices without the need of a
10. What provides a data path between the CPU and external devices?
Ex. 2 根据下面的英文解释，写出相应的英文词汇（使用学过的单词、词组或缩
英文解释 词 汇
A processor whose elements have been miniaturized into one or a
few integrated circuits. It is usually used in PC.
The main board of a computer, usually containing the circuitry for
the central processing unit, keyboard, and monitor and often having
slots for accepting additional circuitry.
A unit of a computer that preserves data for retrieval.
A hand-held, button-activated input device that when rolled along a
flat surface directs an indicator to move correspondingly about a
computer screen, allowing the operator to move the indicator freely,
as to select operations or manipulate text or graphics.
A set of keys, as on a computer terminal, word processor, typewriter.
A connection point for a peripheral device.
A machine code telling a computer to perform a particular operation.
The information or image displayed at a given time on a monitor,
display, or video terminal.
An input device, sometimes part of a standard typewriter keyboard,
consisting of a separate grid of numerical and function keys arranged
for efficient data entry.
Information put into a communications system for transmission or
into a computer system for processing.
Ex. 3 把下列句子翻译为中文。
1. On most computers, a keyboard is the primary text input device.
2. The most conventional kind of mouse has two buttons on top: the left one is used most
3. Windows 95 and other operating systems let the user adjust the sensitivity of the mouse. 章
4. In some systems, the user can also choose among several different cursor appearances.
5. Some people use a mousepad to improve traction for the mouse ball.
6. The second button, on the right, usually provides some less-frequently needed capability.
7. Some mouse manufacturers also provide a version for left-handed people.
8. Today, the mouse is an integral part of the graphical user interface (GUI) of any personal
9. The keyboard also contains certain standard function keys.
10. The “IBM-compatible” PC is associated with business (as well as home) use.
Ex. 4 把下列短文翻译成中文。
The system’s front panel and the comprehensive keyboard have dedicated buttons, taking
you to the main multimedia features: photo, music, and video. The front panel also has quick-
launch buttons for TV viewing and a TV guide.
Ex. 5 通过 Internet 查找资料，借助如“金山词霸”等电子词典和辅助翻译软件，完
成以下技术报告。通过 e-mail 发送给老师，并附上你收集资料的网址。
3. 简述最新 PC 性能与价格。
4. 你所知道的可以通过 USB 接口与 PC 相连接的设备有哪些？
而 且 ， 在 计 算 机 行 业 中 还 不 断 涌 现 出 一 些 新 构 造 出 来 的 词 ， 如
叫做“复合词”。 复合词可以有三种书写形式：连起来写（如网络 network），分开写（如
汽车站 bus stop），用连字符连在一起（如内置的 built-in）。由三个以上单词构成一个复
合词时常采用第三种方法。例如，现代的 up-to-date ，一对一的 one-to-one ，容易使用的
easy-to-use 。合成词的前一个词常用来说明后一个词，例如，主板 motherboard ，子板
daughterboard。绝大部分合成词的词性由最后一个单词决定，但也有例外，如 up-to-date 就
wave + length —— wave-length 波长
band + width —— bandwidth 带宽，频带宽度
bench + mark —— benchmark 基准测试
bold + face —— boldface 粗体
clip + board —— clipboard 剪贴板
chip + set —— chipset 芯片组
copy + right —— copyright 版权
data + base —— database 数据库
finger + tip —— fingertip 手指尖
firm + ware —— firmware 固件，硬件
lap + top —— laptop 膝盖，膝面，膝上
screw + driver —— screwdriver 螺丝刀
snail + mail —— snailmail 慢邮件
spread + sheet —— spreadsheet 电子表格；数据表
Web + site —— website 网站
machine + building —— machine building 机器制造
book + learning —— book learning 书本知识
hand + writing —— handwriting 手写的
waiting + room —— waiting-room 候车室
building + material —— building material 建筑材料
swimming + pool —— swimming pool 游泳池
short + hand —— shorthand 速记
hard+ ware —— hardware 硬件
soft + ware —— software 软件
lower + case —— lowercase 下档；小写字母
upper + case —— uppercase 上档；大写字母
broad + band —— broadband 宽波段
fresh + man —— freshman 大（中）学校一年级学生
hard + copy —— hardcopy 硬拷贝
pick + pocket —— pickpocket 小偷
break + water —— breakwater 防水堤 7
in + put —— input 输入 1
out + put —— output 输出；产量 章
out + come —— outcome 结果
feed + back —— feedback 反馈
get + together —— get-together 联欢会
stand + still —— standstill 停顿
Ex. 6 将 A 栏和 B 栏的单词匹配构成复合单词，再将其翻译成中文。
Column A Column B Chinese meaning of compound word
及物动词（transitive verb, i.e., vt.）构成的基本句型
① 名词做宾语(noun as object)
【例】A disk will not forget its data when it loses power.
【例】Computer keyboards will typically have extra keys.
② that 从句做宾语（that clause as object）
【例】The teacher explained that the most common input device is a keyboard.
【例】He has realized that the central processing unit(CPU) is the brain of the computer.
③ 疑问连词引出从句充当宾语（clauses introduced by wh-words as object）
【例】Do you know why the motherboard is equipped with sockets?
【例】I wonder how computer memory can store all manner of representations of pictures,
sounds, and animations.
Ex. 7 用名词做宾语将下面的汉语译成英语。
2. 我们一般将数据临时存放在 RAM 中。
Ex. 8 用 that 从句做宾语将下面的汉语译成英语。
3. 我们计算机老师说，USB 要比火线慢多了。
4. 我认为 CPU 主要责任是执行指令。
Ex. 9 用疑问连词引出的从句充当宾语翻译下列各句。
4. 你能够建议一下我在何处买一个 U 盘吗？
In its more general usage, a PC (personal computer) is a computer designed for use by
one person at a time. Prior to the PC, computers were designed for (and only affordable by)
companies who attached terminals for multiple users to a single large computer whose
5 resources were shared among all users. Beginning in the late 1980s, technology advances
made it feasible to build a small computer that an individual could own and use.
The term “PC” is also commonly used to describe an “IBM-compatible” personal
computer in contradistinction to an Apple Macintosh computer. The distinction is both 9
technical and cultural. The “IBM-compatible” PC is one with an Intel microprocessor 第
10 architecture and an operating system such as DOS or Windows that is written to use the 1
Intel microprocessor. The Apple Macintosh uses a Motorola microprocessor architecture 章
and a proprietary operating system. The “IBM-compatible” PC is associated with business
(as well as home) use. The “Mac”, known for its more intuitive user interface, is associated
with graphic design and desktop publishing.
15 On most computers, a keyboard is the primary text input device. (The mouse is also a
primary input device but lacks the ability to easily transmit textual information.) The
keyboard also contains certain standard function keys, such as the Escape key, tab and
cursor movement keys, shift and control keys, and sometimes other manufacturer-
The computer keyboard uses the same key arrangement as the mechanical and
20 electronic typewriter keyboards that preceded the computer. The standard arrangement of
alphabetic keys is known as the Qwerty (pronounced KWEHR-tee) keyboard, its name
deriving from the arrangement of the six keys at the upper left of the three rows of
alphabetic keys. This arrangement, invented for one of the earliest mechanical typewriters,
dates back to the 1870s. Another well-known key arrangement is the Dvorak (pronounced
25 duh-VOR-ak, not like the Czech composer) system, which was designed to be easier to
learn and use. The Dvorak keyboard was designed with the most common consonants on
one side of the middle or home row and the vowels on the other side so that typing tends to
alternate key strokes back and forth between hands. Although the Dvorak keyboard has
never been widely used, it has adherents.
30 The Qwerty (pronounced KWEHR-tee) keyboard is the standard typewriter and
computer keyboard in countries that use a Latin-based alphabet. Qwerty refers to the first
six letters on the upper row of the keyboard. The key arrangement was devised by
Christopher Latham Sholes whose “Type-Writer”, as it was then called, was first mass-
produced in 1874. Since that time, it has become what may be the most ubiquitous
machine-user interface of all time.
35 The Qwerty arrangement was intended to reduce the jamming of typebars as they
moved to strike ink on paper. Separating certain letters from each other on the keyboard
reduced the amount of jamming. In 1932, August Dvorak developed what was intended to
be a faster keyboard, putting the vowels and the five most common consonants in the
middle row, with the idea that an alternating rhythm would be established between left and
right hands. Although the Dvorak keyboard has many adherents, it has never overcome the
40 culture of learning to type on a Qwerty.
A mouse is a small device that a computer user pushes across a desk surface in order
to point to a place on a display screen and to select one or more actions to take from that
position. The mouse first became a widely-used computer tool when Apple Computer made
45 it a standard part of the Apple Macintosh. Today, the mouse is an integral part of the
graphical user interface (GUI) of any personal computer. The mouse apparently got its
name by being about the same size and color as a toy mouse.
A mouse consists of a metal or plastic housing or casing, a ball that sticks out of the
bottom of the casing and is rolled on a flat surface, one or more buttons on the top of the
50 casing, and a cable that connects the mouse to the computer. As the ball is moved over the
surface in any direction, a sensor sends impulses to the computer that causes a mouse-
responsive program to reposition a visible indicator (called a cursor) on the display screen.
The positioning is relative to some variable starting place. Viewing the cursor’s present
position, the user readjusts the position by moving the mouse.
55 The most conventional kind of mouse has two buttons on top: the left one is used most
frequently. In the Windows operating systems, it lets the user click once to send a “Select”
indication that provides the user with feedback that a particular position has been selected
for further action. The next click on a selected position or two quick clicks on it causes a
particular action to take place on the selected object. For example, in Windows operating
60 systems, it causes a program associated with that object to be started. The second button, on
the right, usually provides some less-frequently needed capability. For example, when
viewing a Web page, you can click on an image to get a popup menu that, among other
things, lets you save the image on your hard disk. Some mouses have a third button for
additional capabilities. Some mouse manufacturers also provide a version for left-handed
65 Windows 95 and other operating systems let the user adjust the sensitivity of the
mouse, including how fast it moves across the screen, and the amount of time that must
elapse within a “double click”. In some systems, the user can also choose among several
different cursor appearances. Some people use a mousepad to improve traction for the
Although the mouse has become a familiar part of the personal computer, its design
70 continues to evolve and there continues to be other approaches to pointing or positioning on
a display. Notebook computers include built-in mouse devices that let you control the
cursor by rolling your finger over a built-in trackball. IBM’s scrollpoint mouse adds a small
“stick” between two mouse buttons that lets you scroll a Web page or other content up or
down and right or left. Users of graphic design and CAD applications can use a stylus and a
specially-sensitive pad to draw as well as move the cursor. Other display screen-positioning
75 ideas include a video camera that tracks the user’s eye movement and places the cursor
feasible [[ eas i bl es ] adj. 可行的 第
compatible [[ om i bl e ]
pat adj. 兼容的 1
terminal [[ er m nal ]
i n. 计算机终端；线接头 章
contradistinction [[ ont r adi s t i nct i onÓ ] n. 对比，对照
architecture [[ r chi t ect ur ] n. 体系结构
intuitive [[ n[ nt ui t i ve ] adj. 直觉的
manufacturer-customized adj. 厂家定制的
arrangement [[ r r angem r ] ent n. 排列，整理；安排
alphabetic [[ l phabet i ct ] adj. 照字母次序的，字母的
consonant [[ ons onant 的 ] n. 辅音（字母）
stroke [[ t r oke ] n. 打，击；鸣声；中风
adherent [[ dher ent 的 ] n. 追随者，信徒
vowel [[ ow ]el n. 元音；元音字母
mass-produce [ [ [ as s - pr oduce ] vt. 大规模生产
ubiquitous [[ bi qui t ous ce ] adj. 到处存在的，普遍存在的
jamming [[ am i ng]
m n. 人为干扰
typebar [[ ypebar 遍 ] n.（装有铅字的）连动杆
rhythm [[ hyt hm ] n. 韵律，格律；节奏
indicator [[ ndi cat or 杆 ] n. 指示器；指示针
button [[ ut t o] n. 按钮
casing [[ as i ng针 ] n. 包装，外套
reposition [[ epos i t i on的] e vt. 重新定位
popup [[ opupi ] adj. 弹出来的
sensitivity [[ ens i t i vi t ye- ] n. 灵敏度
elapse [[ l aps e ] vi. （时间）过去
traction [[ r act [ r [ ] n. 牵引力
trackball [[ r ackbal l ] n. 轨迹球
stick [[ t i c ] n. 滚轮
stylus [[ t yl us [ [ ] n. 铁笔
video [[ i deos a ] n. 电视；录像；视频
multiple user 多用户
personal computer (PC) 个人计算机
microprocessor architecture 微处理器体系结构
desktop publish 桌面出版
graphic design 图形设计
double click 双击
computer aided design (CAD) 计算机辅助设计
video camera 摄影机
Apple Macintosh computer 苹果机
Pentium Intel 公司生产的 CPU 芯片，“奔腾”CPU
Hewlett-Packard Co.(HP) 美国惠普公司
IBM (International Business Machinery) 国际商业机器公司
PC (Personal Computer) 个人计算机
CAD (Computer Aided Design) 计算机辅助设计
HP (Hewlett-Packard Co.) 惠普公司
GHz (GigaHertz) 吉赫兹
MB (MegaByte) 兆字节
GB (GigaByte) 吉字节
DVD (Digital Video Disk) 数字视频光盘
LCD (Liquid Crystal Display) 液晶显示屏
CD (Compact Disc) 光盘
Ex. 10 根据文章所提供的信息判断正误。
1. People began to use PC in about 1981.
2. An Apple Macintosh computer is also a PC.
3. The “IBM-compatible” PC uses the microprocessor different from the Apple Macintosh.
4. The user interface of “Mac” is more intuitive than that of the “IBM-compatible” PC.
5. All the keyboards of computers have the same keys.
6. The standard arrangement of alphabetic keys is known as the Qwerty which was the
name of the inventor.
7. The Dvorak keyboard is not used as widely as the Qwerty keyboard.
8. The Apple Macintosh first used the mouse.
9. If your computer enters its GUI, you must use the mouse.
10. The main function of the mouse is to reposition the cursor on the display screen.
11. In the Windows operating systems the user needs to click only once and a particular
action will take place.
12. When you click the second button on the right of the mouse, a popup menu will appear.
13. The speed at which the mouse moves and the cursor’s appearance on the screen cannot
be changed by the user.
14. The approach to pointing or positioning on a display is still evolving. 13
1. HP Media Center PC m370n
Product: HP Media Center PC m370n
Price: $2,050 direct  直销
Specs: With 2.8-GHz Pentium 4,512MB DDR SDRAM, 160GB hard drive,
DVD+RW and CD-RW drives, 128MB ATI Radeon 9200, 17-inch LCD
Company Info: Hewlett-Packard Co., 888-999-4747, www.hp.com
In this field of four, the well-rounded HP Media Center PC
m370n trumps the Media Center offerings from Dell and  胜过，超出
Gateway (albeit at a higher price) and edges out the similarly  虽然
priced ViewSonic NextVision M2100 Digital Media Center. The
HP unit is the best combination of traditional PC and multimedia  合并，整合
Our test unit came with dual
optical drives(DVD+RW and CD-  光驱
RW), and a front panel bristling  前面板
with every input/output connector
you’d need for any kind of
multimedia: four flash memory slots,
analog video and audio jacks, USB 2.0 ports, and FireWire. For  插座
fans of the classics, there’s even a quaint floppy disk drive.  离奇的，有趣的
The system’s front panel and the comprehensive keyboard
have dedicated buttons, taking you to the main multimedia  专门的
features: photo, music, and video. The front panel also has quick-
launch buttons for TV viewing and a TV guide.
HP does a good job with the software, especially the
proprietary HP Image Zone photography suite, which lets you  独有的
create slide shows (complete with music) and burn them to 
DVD or CD, share photos, and much more. There’s also ArcSoft’s  刻录
ShowBiz DVD for video editing and DVD creation, MusicMatch
Jukebox Basic for audio, and Sonic RecordNow! for CD and DVD
The most original aspect of the m370n is the camera dock
atop the system unit. A cutout is sized to fit either of HP’s two
docking modules; you can snake the power and USB cables  剪切块
inside the case for a clean look.  曲折 移动 ；蜿 蜒而
All in all, the m370n evolves the field of what a Media Center 行
PC should be: A single place for capturing, storing, creating, and  电缆线
sharing multimedia content.  捕获
2. ViewSonic NextVision M2100
Product: ViewSonic NextVision M2100 Digital Media Center
Price: $2,000 street
Specs: With 2.8-GHz Pentium 4, 512MB DDR SDRAM, 160GB hard drive,  街面
DVD+RW/-RW and CD-RW drives, 128MB NVIDIA GeForce FX5600
graphics, N1700w 17-inch wide-screen LCD TV/monitor
Company Info: ViewSonic Corp., 800-888-8583, www.viewsonic.com
Editor Rating: 15
It’s about time ViewSonic got some respect for its PCs as well 1
as its displays. The ViewSonic NextVision M2100 Digital Media
Center is the sleeper in this group. It’s a capable and affordable
system that would be equally comfortable as a home PC or living-
The system can stand vertically on the included 2-inch
or lay horizontally in an audio rack. A 2-inch-deep panel clips to
the rear and hides much of the unsightliness of the tangle of cables
that congregates behind every computer.
The front panel is uncluttered compared with those of most  整洁的
other PCs. Two chrome-lipped slots accept the most common  铬, 铬合金
memory cards; there’s only one optical drive cutout; and a door
hides connections for the various ports and jacks. The back panel
has coaxial as well as optical digital out. The wireless keyboard,  同轴的, 共轴的
just 15 inches wide with a built-in pointing stick, is cute but  内置
awkward. It’s fine for navigating from your couch but begs to be  可爱的
replaced by a more traditional keyboard and separate mouse for  床，睡椅
normal desktop PC duties.
Software is adequate, with the most notable inclusions  适当的, 足够的
being Sonic RecordNow! 6.5 and MyDVD. In our test unit, the 17-
inch wide-screen ViewSonic N1700w LCD monitor/TV (16:9
contrast ratio; 1,280-by-1,024) accounted for about $800 of the
total cost .
With its 128MB NVIDIA GeForce FX5600 graphics card, the
M2100 was first or second on most of our graphics-intensive tests.
And given that you can get such good performance and a
gorgeous dual-duty monitor for pretty much the same price as  华丽的，灿烂的
the others here—or pick a different display and get the price down  引人 注目 的， 有说
to around $1,500—the M2100 is a compelling choice. 服力的