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1、计算机专业英语作业：1、请将视频“什么是电脑硬件”中所述内容用英文表示。2、请将以下英文翻译为中文。 1）Plug and Play, sometimes, abbreviated PnP, is a catchy phrase used to describe devices that work with a computer system as soon as they are connected. The user does not have to manually install drivers for the device or even tell the computer that
2、 a new device has been added. Instead the computer automatically recognizes the device, loads new drivers for the hardware if needed, and begins to work with the newly connected device. For example, if you connect a Plug-and-Play mouse to the USB port on your computer, it will begin to work within a
3、 few seconds of being plugged in. A non plug-and-play device would require you to go through several steps of installing drivers and setting up the device before it would work. While Plug and Play usually refers to computer peripheral devices, such as keyboards and mice, it can also be used to descr
4、ibe internal hardware. For example, a video card or hard drive may be a Plug and Play device, meaning the computer will recognize it as soon as it is installed. The only difference is that internal components usually require the computer to be turned off when they are installed, while external devic
5、es can typically be installed while the computer is running.2）What are some examples of computer peripheral devices? Answer: A computer peripheral, or peripheral device, is an external object that provides input and output for the computer. Some common input devices include: keyboard, mouse, joystic
6、k, pen tablet, MIDI keyboard (musical instrument digital interface 数码音响), scanner, digital camera, video camera, microphone. Some common output devices include: monitor, projector, TV screen, printer, plotter, speakers. There are also devices that function as both input and output devices, such as:
7、external hard drives, media card readers, digital camcorders, digital mixers, MIDI equipment. While these are some of the more common peripherals, there are many other kinds as well. Just remember that any external device that provides input to the computer or receives output from the computer is co
8、nsidered a peripheral.3）Binary is a two-digit (Base-2) numerical system, which computers use to store data and compute functions. The reason computers use the binary system is because digital switches inside the computer can only be set to either on or off, which are represented by a 1 or 0. Though
9、the binary system consists of only ones and zeros, the two digits can be used to represent any number.4）RAM Stands for “Random Access Memory,“ and is pronounced like the male sheep. RAM is made up of small memory chips that are connected to the motherboard of your computer. Every time you open a pro
10、gram, it gets loaded from the hard drive into the RAM. This is because reading data from the RAM is much faster than reading data from the hard drive. Running programs from the RAM of the computer allows them to function without any lag time. The more RAM your computer has, the more data can be load
11、ed from the hard drive into the RAM, which can help speed up your computer. In fact, adding RAM can be more beneficial to your computers performance than upgrading the CPU.5）Stands for “Read-Only Memory.“ Please do not confuse this term with RAM or a hard drive, as many people already do. ROM is mem
12、ory containing hardwired instructions that the computer uses when it boots up, before the system software loads. In PCs, the instructions are read from a small program in the ROM, called the BIOS (Basic Input/Output System).6）disk drive A machine that reads data from and writes data onto a disk. A d
13、isk drive rotates the disk very fast and has one or more heads that read and write data. There are different types of disk drives for different types of disks. For example, a hard disk drive (HDD) reads and writes hard disks, and a floppy drive (FDD) accesses floppy disks. A magnetic disk drive read
14、s magnetic disks, and an optical drive reads optical disks. Disk drives can be either internal (housed within the computer) or external (housed in a separate box that connects to the computer). 7）removable disk type of disk drive in which hard disks are enclosed in plastic or metal cartridges so tha
15、t they can be removed like floppy disks. Removable disk drives combine the best aspects of hard and floppy disks. They are nearly as capacious and fast as hard disks and have the portability of floppy disks. Their biggest drawback is that theyre relatively expensive.8）serial port A port, or interfac
16、e, that can be used for serial communication, in which only 1 bit is transmitted at a time. A serial port is a general-purpose interface that can be used for almost any type of device, including modems, mice, and printers (although most printers are connected to a parallel port).9）parallel port A parallel interface for connecting an external device such as a printer. Most personal computers have both a parallel port and at least one serial
