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Classical questions and answers of Computer Foundation

Time: 19:44:02, April 10, 2018 test questions I want to contribute

Classical questions and answers of Computer Foundation

   1、 Multiple choice questions

[example 1-1] the world's first recognized electronic computer was born in 1946, and its main electronic devices were used ? It is.

(a) relay ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( B) Electronic tube

(c) transistors ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( D) Integrated circuit

Answer: the world's first recognized electronic computer was born in the United States in 1946, named ENIAC (ENIAC), the main electronic device used is the electronic tube. Therefore, the correct answer to this question is (b).

[example 1-2] at present, computers use VLSI as electronic devices.

(a) first generation computers ? ? ? ? ? ? ? ? ? ? ? ? ?( B) Second generation computer

(c) third generation computers ? ? ? ? ? ? ? ? ? ? ? ? ?( D) Fourth generation computer

Answer: the electronic devices used in the first generation of computers are electronic tubes, the second generation are transistors, the third generation are small and medium scale integrated circuits, and the fourth generation are large-scale and ultra large scale integrated circuits. Therefore, the correct answer to this question is (d).

[example 1-3] a complete computer system consists of.

(a) mainframe, keyboard, monitor ? ? ? ? ? ? ? ( B) Computer and its peripheral equipment

(c) system software and application software ? ? ? ? ? ? ? ( D) Computer hardware system and software system

Answer: a complete computer system consists of hardware system and software system, both of which are indispensable. The host, keyboard and display are only the basic components of the computer hardware system. Computer and its peripherals generally refer to hardware. System software and application software are only two parts of computer software system. Therefore, the correct answer to this question is (d).

[example 1-4] the general name of the calculator, controller and memory of a microcomputer is.

  (A)CPU ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( B)ALU

(c) main engine ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( D)MPU

Answer: CPU is the abbreviation of CPU; MPU is the abbreviation of microprocessor; Alu is the abbreviation of arithmetic logic unit; The CPU is composed of arithmetic unit and controller; The main computer is composed of CPU and memory, which is the core part of microcomputer. Therefore, the correct answer to this question is (c).

[example 1-5] the word length of 486 microcomputer is.

(a) 8 bits ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( B) 16 bits

(c) 32 bits ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( D) 64 bit

Answer: word length refers to the number of bits that the CPU can process binary numbers at the same time. The word length of microcomputer can be divided into 16 bits, 32 bits and 64 bits. The word length of 286 is 16 bits and that of 486 is 32 bits. The high-grade microcomputer adopts 64 bit computer. Therefore, the correct answer to this question is (c).

[example 1-6] for high-end microcomputer with 64 bit word length, one word occupies_____ Bytes.

  (A)2 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( B)4

  (C)6 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( D)8

Answer: words are related to word length. A word consists of several bytes, one byte is an 8-bit binary number. If the word length is 64 bits, a word has 8 bytes. Therefore, the correct answer to this question is (d).

[example 1-7] a personal computer belongs to.

(a) workstation ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( B) Mainframe

(c) minicomputer ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( D) Microcomputer

Answer: according to the performance indexes of computers, such as the size of machines, the speed of operation, and the capacity of memory, computers in China are divided into five categories: supercomputers, mainframes, medium-sized computers, minicomputers and microcomputers. At present, according to the performance index and application objects of computers, computers are divided into six categories: supercomputers, minicomputers, mainframes, medium-sized computers, workstations and personal computers. Among them, personal computer is referred to as PC, also known as microcomputer. Therefore, the correct answer to this question is (d).

[example 1-8] the memory that will not lose the stored information due to power failure is called 咐和和和和和和和和和.

  (A)RAM ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( B)ROM

(c) hard disk ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( D) CD

Answer: ram and ROM are memory. Ram refers to random access memory (RAM), which has high access speed, and the stored information will be lost after power failure; ROM refers to read-only memory, in which the information can only be read and will not be lost after power failure. Hard disk and CD-ROM are external storage, which are usually used to retain a large amount of information permanently. Of course, information cannot be lost after power failure. Therefore, the correct answer to this question is (b).

[example 1-9] the Chinese meaning of DRAM memory is ﹥.

(a) static random access memory ? ? ? ? ? ? ? ? ? ? ?( B) Dynamic random access memory

(c) static read only memory ? ? ? ? ? ? ? ? ? ? ?( D) Dynamic read only memory

Answer: random access memory (RAM) is divided into static random access memory (SRAM) and dynamic random access memory (DRAM). SRAM is usually used as cache because of its high access speed and small capacity; DRAM has large capacity, slow speed and low price. The memory capacity of a microcomputer usually refers to DRAM capacity. Therefore, the correct answer to this question is (b).

[example 1-10] there is a slider in the corner window of the 3.5-inch floppy disk. Move the slider to expose the small hole in the write protection window, ? At this point.

(a) can only write disk, not read disk ? ? ? ? ? ? ? ( B) Can only read disk, not write disk

(c) be able to read and write disks ? ? ? ? ? ? ? ( D) You can't read or write a disk

Answer: a 3.5-inch floppy disk can be used for write protection when the small hole of the write protection window is exposed. That is to say, at this time, only the information on the floppy disk can be read, but not written, so as to play a write protection role. Therefore, the correct answer to this question is (b).

In a microcomputer, the following devices are input devices.

(a) printer ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( B) Display

(c) floppy disk ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( D) Keyboard

Answer: input devices are devices used to input information to a computer. Output device is used to output the information processed by computer. Both printer and display belong to output equipment; Floppy disk is the storage medium of memory (floppy disk must be used with floppy disk drive to input and output information); Only the keyboard is a common input device. Therefore, the correct answer to this question is (d).

[example 1-12] among the following devices, the one belonging to the output device is.

(a) display ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( B) Keyboard

(c) mouse ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( D) Scanner

The input device is used to input information to a computer. Output device is used to output the information processed by computer. Keyboard, mouse and scanner are all input devices, only display is a common output device. Therefore, the correct answer to this question is (a).

[example 1-13] the type of printer with high printing speed and high quality is \\.

(a) impact printer ? ? ? ? ? ? ? ? ? ? ? ? ?( B) Pin printer

(c) inkjet printer ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( D) Laser printer

Answer: Generally speaking, printers are divided into two categories: percussive and non percussive. The impact type has the advantages of simple structure, low printing cost, relatively low speed and general printing quality. Both needle and dot matrix printers are impact printers. Laser printer belongs to non impact type, with high printing speed, high quality and high relative cost, followed by inkjet printer. Therefore, the correct answer to this question is (d).

[example 1-14] from the perspective of software classification, windows used on microcomputers should belong to the category of .

(a) application software ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( B) System software

(c) tool software ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( D) Management software

Answer: software is divided into system software and application software. The tool software in the question belongs to system software. Management software is a kind of application software. Windows is the abbreviation of disk operating system. It is used to manage the hardware and software resources of microcomputer. It belongs to system software instead of application software. Therefore, the correct answer to this question is (b).

[example 1-15] at present, WPS, a commonly used word processing software, should belong to the category of.

(a) office applications ? ? ? ? ? ? ? ? ? ? ? ? ?( B) Operating system software

(c) test tool software ? ? ? ? ? ? ? ? ? ? ? ? ?( D) Database management system software

Answer: word processing software WPS is mainly used for text editing, typesetting and tabulation. It is a commonly used application software, mainly used in office automation. Therefore, the correct answer to this question is (a).

[example 1-16] the language that a microcomputer can recognize and process directly is.

(a) assembly language ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( B) High level language

(c) machine language ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( D) Natural language

Answer: computer language is divided into machine language, assembly language and high-level language. Natural language is the language of people's communication. At present, if the computer wants to recognize and process it, it must be supported by special software and hardware. Assembly language is a machine oriented language represented by mnemonics. High level language is a programming language similar to natural language. Machine language is a machine oriented language represented by binary code, and it is also the only language that can be directly recognized and processed by a microcomputer. Assembly language and high-level language must be assembled, compiled or interpreted before being translated into machine language object code. Therefore, the correct answer to this question is (c).

[example 1-17] a program written in a high-level language is called a program.

(a) source code ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( B) Editor

(c) compiler ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( D) Linker

Answer: the program written in high-level language is called source program; The compiler is used to translate the source program into the target program; The editing program is used to edit and modify the program; Linker is used to connect different program segments and generate executable object program. Therefore, the correct answer to this question is (a).

[example 1-18] the number used in the computer is  u  u ﹣ u ﹣ u ﹣ u ﹣ u ﹣ u ﹣ u ﹣ u ﹣ u.

(a) decimal number ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( B) Binary number

(c) octal number ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( D) Hexadecimal number

Answer: inside the computer, all information is stored, processed and transmitted in the form of binary numbers. Because there is a simple conversion relationship between octal number, hexadecimal number and binary number, and for the same number, it is easier to express the same number by octal number or hexadecimal number than by binary number. Therefore, octal number or hexadecimal number is usually used in writing. But after entering the computer, all the numbers are stored in the form of binary numbers. Therefore, the correct answer to this question is (b).

[example 1-19] the binary number corresponding to the decimal number 19 is.

  (A)10001 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( B)10010

  (C)10011 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( D)11000

Answer: the method of converting decimal integers to binary numbers is: divide by 2 repeatedly until the quotient is 0, and take the remainder in reverse. Divide 19 by 2 repeatedly, and the remainder is 1, 1, 0, 0, 1. The remainder is 10011. Therefore, the correct answer to this question is (c).

[example 1-20] the decimal number corresponding to an 8-bit binary number 11111111 is a decimal number.

  (A)127 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( B)128

  (C)255 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( D)256

Answer: the method of converting binary number to decimal number is: take Radix as 2, add by each weight. Namely

  11111111=27+26+25+24+23+22+21+20=128+64+32+16+8+4+2+1=255。 Therefore, the correct answer to this question is (c).

[example 1-21] the binary number 110101 is converted to a hexadecimal number.

  (A)(D1)16 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( B)(65)16

  (C)(35)16 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( D)(1D)16

Answer: set the binary number from right to left every 4 bits, fill 0 when the leftmost is less than 4 bits, and then directly use 4-bit binary number to one hexadecimal number, (00110101) ? 2, namely 35. Therefore, the correct answer to this question is (c).

In a microcomputer, the storage capacity is 1MB.

  (A)1024 × 1024 bits ? ? ? ? ? ? ? ? ? ? ? ( B)1000 × 1000 bits

  (C)1024 × 1024 bytes ? ? ? ? ? ? ? ? ? ?( D)1000 × 1000 bytes

Answer: in microcomputers, the smallest unit of storage capacity is byte. 1024 bytes are 1KB, 1024KB is 1MB. Therefore, the correct answer to this question is (c).

[example 1-23] address a byte in a memory with a hexadecimal address code. If the address number is from 0000 to ffff, the capacity of the memory is.

  (A)256KB ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( B)64KB

  (C)1MB ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( D)640KB

Answer: one byte is stored in the storage unit corresponding to each address number. In fact, this problem is to convert the hexadecimal number ffff to decimal number, and consider 1KB = 1024 bytes. Convert hexadecimal ffff to decimal number

  15 × 163+15 × 162+15 × 16+15=65535

The storage capacity of address numbers from 0 to 65535 is 65536 bytes, or 64KB. Therefore, the correct answer to this question is (b).

[example 1-24] a computer virus is a virus.

(a) one of the biological viruses ? ? ? ? ? ? ? ? ? ? ?( B) Computer generated small program automatically

(c) damaged procedures ? ? ? ? ? ? ? ? ? ? ? ? ?( D) Special destructive small program

Answer: the so-called computer virus refers to a special small program that is designed to interfere with and destroy the normal operation of the computer system. Computer virus is different from biological virus. It can't generate automatically, but it can infect other programs and systems automatically. Therefore, the correct answer to this question is (d).

[example 1-25] the transmission route of computer virus listed below is incorrect.

(a) using software of unknown origin ? ? ? ? ? ? ? ( B) By borrowing someone else's floppy disk

(c) copying through illegal software ? ? ? ? ? ? ? ( D) The floppy disk is stacked with the floppy disk with the virus

Answer: in order to prevent the virus from infecting the computer, the genuine software should be used instead of using and copying the software of unknown origin at will, so as to prevent virus infection. The normal floppy disk will not be infected with virus if it is stacked with the virus. Therefore, the correct answer to this question is (d).

[example 1-26] in the field of computer, the ASCII code of characters belongs to.

(a) feel media ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( B) Performance media

(c) media ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( D) Storage media

Answer: the sensory media directly acts on the human senses, making people feel directly; Performance media is the interface between sensory media and computer; Media refers to various codes; Storage media is used to store the representation media, that is to store the digital code of sensory media. The ASCII code of characters refers to the binary encoding of characters, belonging to the representation media. Therefore, the correct answer to this question is (c).

[example 1-27] the resource sharing of computer network mainly includes ﹣ and ﹣.

(a) sharing of equipment resources and non equipment resources

(b) hardware and software resource sharing

(c) sharing of software and data resources

(d) sharing of hardware resources, software resources and data resources

Answer: there are many functions of computer network, such as resource sharing, data communication, etc. Among them, resource sharing is the most important function of computer network. Resource sharing includes hardware resource, software resource and data resource sharing. Therefore, the correct answer to this question is (d).

[example 1-28] as for the concept of operating system, the correct way to say it is ﹣ uuuuuuuuuu.

(a) operating system is an important kind of system software

(b) operating system is a kind of important application software

(c) the operating system is a special hardware device

(d) the operating system is a set of operating methods

Answer: operating system (OS) controls and manages computer hardware and software resources, provides user interface and software application and development environment, and is the most important system software of computer system. Therefore, the correct answer to this question is (a).

[example 1-29] the operating system provides.

(a) interface between software and hardware ? ? ? ? ? ? ? ? ? ( B) Interface between host and peripheral

(c) computer user interface ? ? ? ? ? ? ? ( D) Interface between high level language and machine language

Answer: the operating system is the interface between the user and the computer. The interface between software and hardware is machine language. The interface between host computer and peripheral device is I / O interface circuit. The interface between high-level language and machine language should be compiler (or interpreter). Therefore, the correct answer to this question is (c).

[example 1-30] Windows 2000 is an example.

(a) single user, single task operating system ? ? ? ?( B) Single user, multitask operating system

(c) multi user, single task operating system ? ? ? ?( D) Multi user and multitask operating system

Answer: Windows 2000 is a 32-bit single user, multi task graphical operating system. Therefore, the correct answer to this question is (b).

[example 1-31] in Windows system, to process a disk file, you must read the file to.

(a) memory ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( B) Arithmetic unit

(c) controller ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?( D)CPU

Answer: computer memory stores the program and data to be used during program execution. Therefore, when the computer system wants to process a file in the disk, it must first read it into the memory, and then the CPU will perform various operations on it. Therefore, the correct answer to this question is (a).

[example 1-32] in the control menu of windows, minimize means ﹣ U.

(a) close the current window ? ? ? ? ? ? ? ? ? ? ? ? ?( B) Reduces the current window to an icon

(c) undo Icon ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( D) Terminate the application

Answer: the control menu is located in the upper left corner of the window title bar. Click it to open the control menu. There are restore, move, size, maximize, minimize, and close menu command options. "Minimize" means to reduce the current window to an icon, and "close" means to close the current window and terminate the application. Therefore, the correct answer to this question is (b).

[example 1-33] in windows, if a window represents an application program, the meaning of opening the window is \.

(a) display the content of the application ? ? ? ? ? ?( B) Run the application

(c) end the application ? ? ? ? ? ?( D) Display and run the application

Answer: in the windows environment, if a window represents an application, opening the window means running the application. Therefore, the correct answer to this question is (b).

[example 1-34] in the windows environment, there is an X button in the upper right corner of most windows. Click this button to realize the "X" button.

(a) maximize window ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( B) Minimize window

(c) close the window ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ( D) Exit windows system

Answer: in the upper right corner of most windows in windows, there are usually three buttons: the maximize button, the minimize button, and the close window button. Click the X button to close the window. Therefore, the correct answer to this question is (c).

[example 1-35] in the windows environment, the function of the PrintScreen key is .

(a) print the contents of the current window ? ? ? ? ? ? ? ( B) Print screen content

(c) copy the screen to the clipboard ? ? ? ? ? ? ? ? ? ( D) Copies the current window to the clipboard

Answer: in the windows environment, you can copy all the information displayed on the current screen to the clipboard for pasting other files. You can do this by pressing the PrintScreen key on the keyboard. To copy information from the current window to the clipboard, use Alt + PrintScreen. Therefore, the correct answer to this question is (d).

   2、 Fill in the blanks

The first electronic computer in the world_______ Born in.

Answer: the world's first recognized electronic computer was born in the United States in 1946, named ENIAC (ENIAC), the main electronic components used are electronic tubes. Therefore, the correct answer to this question is "1946" and "America".

[example 1-2] the electronic devices used in the second generation of computers are.

Answer: it is generally believed that the development of modern computers is divided into four generations, marked by the main electronic devices used. The first generation is electron tube, the second generation is transistor, the third generation is small and medium scale integrated circuit, the fourth generation is large scale and ultra large scale integrated circuit. Therefore, the correct answer to this question is "transistor".

[example 1-3] the CPU is composed of_____ And_____ form.

Answer: CPU refers to the central processing unit, which is mainly composed of arithmetic unit and controller. The main function of the arithmetic unit is to realize arithmetic operation and logic operation. The controller is used to control the coordinated operation of all parts of the computer. Therefore, the correct answer to this question is "arithmetic unit", "controller".

[example 1-4] in a computer, all information is processed and stored in a computer.

Answer: in the computer, the use of binary numbers, all information processing, storage are in the "binary form.". 0 and 1 indicate the two working states of electronic components. Therefore, the correct answer to this question is "binary form".

[example 1-5] the main performance indicators of a computer are_______ And.

Answer: the main performance indexes of computer are word length, operation speed, main frequency and memory capacity. Therefore, the correct answer to this question is "word length", "operation speed", "main frequency", "memory capacity".

[example 1-6] the computing speed of a computer, 1mips means execution per second________ Instructions.

Answer: the speed of computer can be described by MIPs. MIPS refers to the execution of millions of instructions per second. Therefore, the correct answer to this question is "1 million".

[example 1-7] the word length of P4 CPU chip is 32 bits, and the number of binary bits that can be processed at the same time is.

Answer: the P4 CPU computer is a 32-bit computer, which can process 32-bit binary numbers at the same time. Therefore, the correct answer to this question is "32".

[examples 1-8] computer applications mainly include_______ And.

Answer: computer applications mainly include scientific computing, information management, process control and computer-aided engineering. Among them, the earliest application is scientific computing, the most widely used is information processing. Therefore, the correct answer to this question is "scientific calculation", "information management", "process control", "Computer Aided Engineering".

[example 1-9] in computer application, CAD refers to ﹣ uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu.

Answer: there are CAD, cam, CAI and cat. CAD refers to computer aided design. Therefore, the correct answer to this question is "computer aided design".

[example 1-10] if the ASCII code value of the English letter symbol a is 65, then the ASCII code value of the English letter H is uuuuuuuuuuuuuuuuuuuu; Given that the ASCII value of the numeric character 6 is 54, then the ASCII code of the numeric symbol 0 is  uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu.

Answer: the ASCII code of English letters is in alphabetical order, so as long as you know the ASCII code value of one letter, you can calculate the ASCII code value of other letters. The order of numeric characters is 0-9. According to this rule, the ASCII code value of letter H is 65 + 7 = 72, and the value of ASCII code of digit symbol 0 is 54-6 = 48. Therefore, the correct answers are "72" and "48".

[example 1-11] the decimal number 25.625 is converted into a binary number, Convert to a hexadecimal number to \\\\\\\\\\\\\\\\.

Answer: according to the conversion rules, the integer part and the decimal part are converted into binary numbers respectively

  (25)10=(11001)2

  (0.625)10=(0.101)2

Therefore, (25.625) 10 = (11001.101) 2, and then start from the decimal point of binary number, and divide it into a group every 4 digits forward, and add 0 before less than 4 digits; The decimal is divided into a group every 4 digits. If it is less than 4 digits, 0 is added after it, and every 4 digits corresponds to a hexadecimal number.

  (25.625)10=(11001.101)2=(0001,1001.1010)2

  =(19.A)16

Therefore, the correct answers are "11001.101" and "19. A".

[example 1-12] 640kb is equal to_____ Bytes, 120GB equals________ MB。

Answer: the unit of storage capacity is byte. In addition, there are kilobytes, megabytes and gigabytes. The conversion relationship is 1KB = 1024 bytes, 1MB = 1024KB, 1GB = 1024MB. From this we can get

  640KB=640 × 1024 bytes = 655360 bytes

  120GB=120 × 1024MB=122880MB

Therefore, the correct answer to this question is "655360", "122880".

[example 1-13] the Chinese meaning of CD-ROM is.

Answer: CD-ROM is an external storage device commonly used on microcomputers. The information stored in the CD is read by the CD-ROM drive, but not written. Therefore, the correct answer to this question is "CD-ROM".

[example 1-14] the multimedia computer system consists of_____ And_____ form.

Answer: a multimedia computer is a computer that can handle multiple media. It is composed of hardware and software. The difference is that the hardware and software are added to deal with multimedia. Therefore, the correct answer to this question is "multimedia computer hardware system", "multimedia computer software system".

[example 1-15] the Internet refers to the Internet.

Answer: Internet is the abbreviation of Internet. It belongs to wide area network, originated in the United States. It uses TCP / IP protocol to connect thousands of computers in the world. It is the largest information network in the world. Therefore, the correct answer to this question is "Internet".

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