First, multiple-choice exercises

1. A complete computer system consists of (c).

A. arithmetic unit, controller, memory, input device and output device

B. Host and external devices

C. Hardware system and software system

D. main chassis, monitor, keyboard, mouse and printer.

2. Among the following software, (d) is not operating system software.

A.windows XP b . UNIX c . Linux d . Microsoft office

3. A byte can compile at most (d) different codes.

A.viii.b.16 C.128d.256

4. Any program must be loaded in (c) before it can be executed by CPU.

A. Disk B. Hard disk C. Memory D. External memory

5. In the following equipment, belongs to the output device is (A).

A. monitor B. keyboard C. mouse D. handwriting board

6. K in the computer information measurement unit stands for (B).

A.b . 2 102 c . 103d . 28

7.ram stands for (c).

A. read-only memory B. cache C. random access memory D. floppy disk memory

8. The two main components that make up a computer CPU are (A).

A. arithmetic unit and controller B. controller and register C. arithmetic unit and memory D. controller and memory

9. In describing information transmission, bps stands for (d).

A. Bytes transmitted per second B. Instructions transmitted per second

C. Number of words transmitted per second D. Number of bits transmitted per second

10. The memory capacity of microcomputer mainly refers to the capacity of (A).

A.ram b.rom c.cmos d. cache

1 1. The binary number corresponding to the decimal number 27 is (d).

a . 10 1 1 b . 1 100 c . 10 1 1 1d . 1 1 1 1

Directory structure of 12. Windows adopts (a).

A. Tree structure B. Linear structure C. Hierarchical structure D. Net structure

13. When restoring files in the recycle bin, the restored files will be returned to (d).

A. On the desktop, B. In my document, C. In memory, D. was deleted.

14. In the window menu of Windows, if there is a black triangle on the right behind a command item, it means the command item (a).

A. there are submenus at lower levels. B. Click the mouse to execute directly.

C. Double-click the mouse to directly execute D. Right-click the mouse to directly execute.

15. The three buses of the computer do not include (c).

A. control bus B. address bus C. transmission bus D. data bus

16. The operating system is divided into three levels according to its functional relationship: system layer, management layer and (d).

A. data layer B. logic layer C. user layer D. application layer

17. The pinyin input code of Chinese characters belongs to (a) of Chinese characters.

A. external code B. internal code C. ascii code D. standard code

Clipboard for 18. Windows is used to temporarily store information (C).

A. a window B. a folder C. a storage area D. a disk area

19. For the Windows application window in the recovery state, the operation that cannot be realized is (d).

A. Minimize B. Maximize C. Move D. Rotate

20. The interface for inserting the U disk into the computer is usually the standard interface (D).

A.UPS B.USP C.UBS D.USB

2 1. When creating a new document, the default font and font size of Word are (c) respectively.

A. Bold, No.3 B. Italic, No.4 C. Song Style, No.5 D. Imitation Song, No.6.

22. When saving a Word document for the first time, the system will open the dialog box (B).

A. Save B. Save as C. Create a new D. Close

23. In the Word table, the cell name in the third row and fourth column is (C).

C4

24.Word editing documents, what you see is what you get is (b).

A. Normal view B. Page view C. Outline view D. Web view

25. By default, the new Excel workbook contains (b) worksheets.

A.2 B.3 C.4 D.5

26. # # # # appeared after calculating a set of data in the cells of Excel worksheet, which was caused by (a).

A. Cell display width is not enough B. Calculation data error C. Computer formula error D. Data format error

27. If the text entered in the same cell of Excel has two paragraphs, you should use the key (c) after entering the first paragraph.

A. enter B. Ctrl+ enter C. Alt+ enter D. Shift+ enter.

28. The default extension of PowerPoint presentation is (b).

A .. PWP B .. PPT C. PPN D. Pop music

29. The basic structure of the algorithm does not include (a).

A. Logical structure B. Selection structure C. Cyclic structure D. Sequence structure

30. Programs written in C language need to be translated in (b) before they can be recognized by computers.

A. assemble B. compile C. explain D. connect

3 1. Programs that can be directly executed by computers are programs written in (a) language.

A. Machine B. Assembly C. Advanced D. Network

32. The logical structure of the data in the relational database is (D).

A. Hierarchical structure B. Tree structure C. Mesh structure D. Two-dimensional table

33. The local area network (LAN) in the form of Ethernet has the topology of (B).

A. Ring B. Bus C. Star D. Tree

34. The IP address in the Internet consists of (c)-bit binary numbers.

16 C.32 D.64

35. In the "/"entered in the IE address bar, the protocol used to send and receive emails on the Internet is (c).

A.TCP/IP B.IPX/SPX C . pop 3/SMTP D . NetBEUI

37. The widely used WWW on the Internet is a kind of (a).

A. browsing service mode B. network host C. network server D. network mode

38. When the same photo is stored in the following format, the format that takes up the largest storage space is (c).

A..JPG bay .. TIF angle ... bone morphogenetic protein D..GIF format

39. Files with extension. MOV is usually a (b).

A. audio file B. video file C. picture file D. text file

40. In essence, computer virus is a kind of (C).

A. Bacteria B. Text C. Program D. Microbes

Second, multiple-choice questions (the answer is visible)

1, the world's first electronic computer was born in B.

A 194 1 yearb1946c1949d1950.

2, the world's first proposed stored program computer architecture is D ..

A mochilai b alan turing c george boole d von Neumann

3. The main logic element used in the world's first electronic digital computer is A ..

Electron tube transistor relay photocell

The following statement is true: D.

ENIAC, the first electronic computer in the world, realized the "stored program" scheme for the first time.

B According to the scale of computers, people divide the development process of computers into four eras.

C microcomputer first appeared in the third generation computer.

The computer architecture proposed by von Neumann laid the theoretical foundation of modern computer architecture.

5. A complete computer system should include B.

System hardware and system software

Hardware system and software system

C host and external devices

Host, keyboard, display and auxiliary memory.

6, the performance of the microcomputer hardware system mainly depends on a.

Memory c in microprocessor b shows the hard disk memory of adapter D.

7. The basic unit of data processing by microprocessor is word. The length of a word is usually d.

A 16 binary bit B 32 binary bit C 64 binary bit d is related to the model of microprocessor chip.

8. The word length of a computer depends on the width b of which bus.

A control bus b data bus c address bus d communication bus

9. The meanings of "350" and "450" in "Pentium Ⅱ 350" and "Pentium Ⅲ 450" are D.

A maximum memory capacity b maximum operation speed c maximum operation precision d clock frequency of CPU

10, microcomputer, the main function of the operator is to C.

A logic operation b arithmetic operation c arithmetic operation d solution of complex equation

1 1. Among the following memories, D has the fastest access speed.

A floppy disk storage b hard disk storage c optical disk storage d internal storage

12. Among the following printers, B has the best printing effect.

A dot matrix printer b laser printer c thermal printer d inkjet printer

13, among the following factors, d has the least influence on the microcomputer work.

Temperature b humidity c magnetic field d noise

14, the memory that CPU can't directly access is D.

A ROM B RAM C cache d disc

15, microcomputer, the basic function of the controller is d.

Store all kinds of control information.

Transmit various control signals.

C generate all kinds of control information.

Control all parts of the system to execute the program correctly.

16, in the following four statements, b is the characteristic of RAM.

A can read and write data randomly, and the data will not be lost after power failure.

B can read and write data randomly, and all data will be lost after power failure.

C can only read and write data sequentially, and the data will be partially lost after power failure.

D can only read and write data sequentially, and all data will be lost after power failure.

17. In a microcomputer, the arithmetic unit and the controller are collectively referred to as C.

A logic unit b arithmetic operation unit c microprocessor d arithmetic logic unit

18, in the microcomputer, ROM is C.

A sequential read-write memory b random read-write memory c read-only memory d cache memory

19, the most prominent advantage of computer network is C.

A information circulation B data transmission C resources * * * Enjoy D to reduce costs.

20. E-mail means.

A communication method that uses computer network to transmit words, sounds, images or graphics to specific objects in time.

Communication methods such as telegraph, telephone and telex.

C wireless and wired collectively.

Transmission of data information

2 1, what do you think can accurately reflect the main functions of the computer is C.

Computers can replace people's mental work.

Computers can store a lot of information.

A computer is an information processor.

Three-dimensional computer can realize high-speed operation.

22, computer internal information representation and storage often use binary form, the main reason for this form is D.

A calculation method is simple, b represents a single form, c avoids confusion with decimals, and d adapts to logic circuit hardware.

At present, the application fields of computers can be roughly divided into three aspects. Point out that the correct answer in the following answers is C.

Artificial intelligence of computer-aided teaching expert system

Word processing of engineering calculation data structure

Real-time control of scientific computing data processing

Three-dimensional digital processing artificial intelligence operating system

24, the following equipment, belongs to the output device is B.

A scanner b monitor c touch screen d light pen

25, the following equipment, belongs to the input device is C.

Sound synthesizer b laser printer c light pen d display

26, microcomputer configuration cache is to solve the problem of D.

Speed mismatch between host and peripheral.

B speed mismatch between CPU and auxiliary memory.

There is a speed mismatch between the memory in C and the auxiliary memory.

D speed mismatch between CPU and memory.

27, the following memory, information will be lost after power failure is B ..

Ar0m b ram c cd-rom d disk memory

28, disk storage, access to information is the most basic unit of C.

One byte, B word, C sector, D track.

29, 32 of the 32-bit microcomputer refers to microcomputer A.

Can handle 32-bit binary numbers at the same time.

B can handle 32-bit decimal numbers at the same time

C has 32 address buses.

D operation accuracy can reach 32 digits after decimal point.

30. The optical disc used in the microcomputer system with multimedia function is a C ..

A semiconductor memory b read-only hard disk c read-only optical disk d read-only large-capacity floppy disk

3 1, the information stored in the memory can be data or instructions, depending on C.

Is the highest bit of a 0 or 1?

The address of the storage unit.

The process of CPU executing program judgment.

D ASCII code table to distinguish

The addressing range of 32 or 20 address lines can reach B.

a 5 12KB B 1024 kb C 640 kb D 4096 kb

33. Convert the decimal number 93 into the binary number d.

a 1 1 10 1 1 B 1 1 10 10 1 C 10 10 10 1 1 1 1 1 1 1D 65438

34, widely used in microcomputer character encoding is D.

A BCD code b pinyin code c complement D ASCII code

35. Perform the following binary number arithmetic addition operation1010/kloc-0+00101065438, and the result is a.

a 1 10 10 10 10 100 10 C 10 10 10 10 10d 0 10 100

36. Perform the following logical addition operation (that is, logical OR operation)1010v01010, and the result is B.

a 1 1 1 10 100 B 1 10 10 10 C 1000 10 10d 10d 1 165438

47. In the following description, A is correct.

A1kb =1024x1024 bytes.

B1MB =1024x1024 bytes.

C 1KB = 1024MB

D 1MB = 1024 bytes

48. In the following English, B can be used as a data unit in a computer.

A binary byte is about in the D band.

49. The language that the computer can directly recognize and process is C.

A assembly language b natural language c machine language d high-level language

40. The effective way to prevent floppy disks from being infected with computer viruses is C.

Floppy disk away from electromagnetic field.

Format floppy disks regularly.

Write-protected floppy disk

D it is forbidden to put it together with other floppy disks with viruses.

4 1, the more thorough cleaning method is D.

A, processing B with antivirus software, processing C with antivirus software, deleting disk file D, and reformatting the disk.

42. Microcomputer uses bus structure to connect CPU, memory and external devices. The bus consists of three parts, including D.

Data bus, transmission bus and communication bus.

B address bus, logic bus and signal president

C controls the president, address bus and operation bus.

Data bus. Address bus and control bus

43. At present, the most widely used field of computer is C.

Artificial intelligence and expert system

B scientific technology and engineering calculation

Data processing and office automation

Aided design and manufacturing

44, the function of the operating system is a.

A processor management, memory management, device management, file management.

Arithmetic unit management, controller management, printer management, disk management.

Hard disk management, floppy disk management, memory management, file management

Program management, document management, establishment management and equipment management.

45, in the microcomputer, VGA means d..

A-type microcomputer B-type keyboard C-type display Standard D-type display

46. A computer network consists of B.

Transmission medium and communication device

Communication subnet and resource subnet

C. User computers and terminals

Host and communication processor

47, about the concept of hardware system and software system, the following statement is not correct is D.

A The basic function of computer hardware system is to accept computer programs and complete data input and data output tasks under the control of the programs.

B The software system is based on the hardware system, which gives full play to the hardware functions and provides users with an environment with convenient operation and easy work.

C a computer without an assembly software system can't do any work, so it has no practical use value.

As long as the system software is installed, the computer can perform word processing or data processing.

Fourth, fill in the blanks

1. The instructions of the computer consist of (operation code) and operand or address code.

2. The hexadecimal number 3D8 is expressed as (984) in decimal number.

3. The host computer of microcomputer consists of controller, arithmetic unit and (memory).

(Recycle Bin) icon on 4.4. Windows XP desktop cannot be deleted.

5. The command to edit the header and footer in Word is located in the (View) menu.

6.6 The function of the σ button. Excel toolbar is (sum).

7.7. Three areas of work in the joint attempt. PowerPoint includes: outline area, slide area and (remarks area).

8. Lan, Man and Wan represent Lan, Man and Wan respectively.

9. (Touch screen) is an input device installed on the surface of a computer monitor or any monitor.

10. Usually people call it an illegal intruder (hacker) of computer information system.

Computer skills test questions 14

1. Comparing the internal memory and external memory of a computer, one of the main features of internal memory is (1).

A, the price is cheaper B, the storage capacity is larger C, the access speed is faster D, the price is expensive but the capacity is large.

2. This set of computer instructions is called (2)

A, computer language B, program C, software D, database system

3. If the file is set to read-only, the following operation is correct (3).

A, can open the file and save b, can't open the file.

C, can open the file but can't save d, can't open the file and can't save.

4. In a DOS or Windows system, "path" means (4)

A, program execution process B, user operation steps

C. the directory location of the file on the disk D. which disk is the file on?

5. In Windows, the desktop refers to (5)

A, computer desk B, activity window

C the screen background where the document window d, windows, icons and dialog boxes are located.

6. Cut, copy and paste functions are often used in 6.Windows operation, and the shortcut key of copy function is (6).

a、Ctrl+C B、Ctrl+S C、Ctrl+X D、Ctrl+V

7.MIPS is an index for measuring computer systems (7)

A, storage capacity b, clock capacity c, processing capacity d, operation speed

8, (8) is the characteristic of Windows operation.

A, first select the operation command, and then select the operation object b, first select the operation object, and then select the operation command.

C. You need to select the operation object and the operation command d at the same time. You need to drag the operation object onto the operation command.

9.MPC means (9)

A. Computer B capable of processing sound and computer B capable of processing images

C. Computer capable of communication processing

D, computers that can handle text, sound, images and other media.

10. The key used to print the screen content on the keyboard is (10).

a、Ctrl B、Alt C、PrtSc D、PgDn

1 1. To select multiple nonadjacent worksheets in Excel, you can click the tab of the first worksheet, then hold down the (1 1) key, and then click the other worksheets you want to select.

a、Ctrl B、Alt C、Shift D、Enter

12. In Word, if you want to form a watermark after inserting a picture, that is, words and patterns overlap, you can see both words and patterns, you should (12).

A, placing a graph under a text layer; B, graphics and text are set in the same layer.

C, placing the graph on the text layer; D. input the characters in the graph.

13. The header and footer can be displayed in the following ways: (13)

A, normal view b, page view c, outline view d, full screen view

14. Open a Word document and save it in other directories after modification. The correct operation is: (14)

A, click the "Save" button on the common toolbar, and select the "Save" command in the file menu.

C, select the "Save As" command d in the file menu, and directly select the "Exit" command in the file menu.

15. When the absolute address is copied to other units, its unit address is (15).

A, change B, unable to copy C, unchanged D, partial change

16, TCP/IP is: (16)

A, network address b, different network operating systems

C, communication protocol d, network application software

17, the most prominent features of computer network are: (17)

A, high precision b, large memory capacity c, * * * shared resources d, and fast operation speed.

18. Unsigned binary integer 1000 1 10 is converted into decimal number.

A) 68 B) 70 C) 72 D) 74

19. At present, the standard input devices in microcomputers sold in the market are

A) floppy drive+optical drive b) mouse+keyboard

C) monitor+keyboard d) keyboard+scanner

In computer technology, the Chinese translation of the English abbreviation CPU is

A) controller b) arithmetic unit c) central processor d) register

Computer skills test questions 15

When turning on the power of the computer system, first turn on the power of _ _ _ _ _ _ _ _, and then turn on the power of the host.

A. Host B. Monitor C. Printer D. External equipment

ASCII is _ _ _ _ _ _ _.

American standard code for information interchange

All information in the computer is represented in digital form.

A. octal B. hexadecimal C. decimal D. binary

According to the access speed, which of the following types of memory is the fastest _ _ _ _.

A. main (internal) memory B. hard disk C. cache D. USB flash drive

There are many computer performance indicators, of which _ _ _ _ _ _ _ is not a performance indicator.

A. main frequency B. word length C. running speed D. presence or absence of optical drive

The computer hardware system consists of _ _ _ _ _.

Controller, display, printer, host and keyboard.

Controller, arithmetic unit, memory, input and output equipment

CPU, host, monitor, hard disk, power supply

Main chassis, integrated block, display, power supply

7.CAM is a kind of computer application field, and its meaning is _ _ _ _ _ _ _ _.

A. Computer aided design B. Computer aided manufacturing

C. Computer-assisted instruction

8. In windows, the operation of moving the window is _ _ _ _ _.

Point to the menu bar and drag the mouse.

Point the mouse pointer to the border and drag the mouse.

Point the mouse pointer to the title bar and drag the mouse.

Point the mouse pointer anywhere and drag the mouse.

9. In the windows environment, you can use the "Copy Floppy Disk" in the Explorer to copy the entire floppy disk. In the instruction of this command, _ _ _ _ _ should be selected.

You need to format the new target disk before you can use it.

You should delete all the contents of the target disk first, otherwise you may not be able to copy all the files.

You should check whether there are two floppy disk drives first. D. None of the above three statements is correct.

10. To modify the date or time in windows, you should run the "Date or Time" option of the _ _ _ _ program.

A. Explorer B Attachment C Control Panel D Calculator

1 1. In windows Explorer, select _ _ _ _ view mode to display the file size and modification time.

A. Large icon B. Small icon C. List D. Details

12. In windows Explorer, you just checked the directory of drive A.. If you replace the floppy disk in the same drive and want to view the new directory, you can use the _ _ _ _ _ _ _ _ _ command.

A. refresh B. change C. display D. redisplay

13. in Windows98, press Ctrl+Alt+Del to open the closing program window, which lists _ _ _ _ _.

A. the file name of the opened document file B. the name of the executable program in the system.

C. application name with "system" attribute.

Insert an empty table in 14. Word means that when the column width is set to automatic, the processing mode of the system is _ _ _ _.

A. OK B. Set the column width to 10 Chinese characters according to the preset default value.

C, setting the column width to 10 characters; D, automatically calculating and determining according to the number and width of columns set on the page.

15. In Word2000, save, save as, close and exit commands can save the old file being edited, but the processing methods are different. Save as means _ _ _ _ _.

Quit editing, but don't quit Word. You can only save it in the original location with the old file name.

Quit editing, quit Word, and save in the original location with the old file name.

Don't quit editing, you can only save it in the original location with the old file name.

Without quitting editing, you can save in the original location with the old file name, change the file name or save in another location.

16. When editing text in word, you can directly perform _ _ _ _ _ operation on the ruler.

A. List articles B. Create tables C. Embed pictures D. Indent the first line of a paragraph

On 17. In the excel environment, the file used to store and process worksheet data is called _ _ _ _ _.

A. Cell B. Workspace C. Workbook D. Worksheet

18. There are many ways to show slides. By default, the following _ _ _ _ _ can be displayed without starting from the first slide.

A. the "watch the show" command item under the "slide show" menu

B. slide show button on the view button bar

C. "Slide Show" command item under "View" menu

D. In the browser, right-click the presentation file and select the "Show" command from the shortcut menu.

19.FTP is _ _ _ _ on the Internet.

A. Software for sending emails B. Tools for browsing the web

C. A file transfer service, a chat tool.

20. The function of the modem is to realize _ _ _ _ _.

A.b. digital signal shaping

Computer skills test questions 12

1, computer software is divided into

A) programs and data b) system software and application software

C) operating system and language processor d) programs, data and documents.

2. 1GB is equal to

A) 1000× 1000 bytes b)1000×1000 bytes

C) 3× 1024 bytes d)1024×1024×1024 bytes.

3. Among the following characters, the character with the largest ASCII code value is

A) 8B) 9C) aD) b)

4, the role of the controller in the CPU is

A) perform logical operations b) perform arithmetic operations.

C) Analyze the instruction and send out the corresponding control signal d) Only control the CPU.

5, in the performance index of microcomputer, memory capacity refers to

Capacity of rom capacity of ram

C) the sum of rom and RAM capacity d) the capacity of CD-rom.

6, can convert the high-level language source program into the target program is

A) compiler b) interpreter c) debugger d) editor

7. In Windows 98, the mouse pointer is an hourglass, as shown by the arrow.

A) There are no tasks in progress, and all tasks are waiting.

B) A copy job or a print job is being executed.

C) One task is being executed, and other tasks cannot be executed.

D) One task is being executed, but other tasks can still be executed.

8, in Windows 98, in order to end the infinite loop of the program, the first key that should be pressed is

a)Ctrl+Alt+DelB)Ctrl+DelC)Alt+DelD)Del

9. The Windows 98 desktop is one.

A) system folder b) user file c) system file d) user folder

10. In Windows 98, drag the title bar of a non-maximized window with the mouse to

A) changing the size of the window b) closing the window c) moving the position of the window d) restoring the window

1 1. In the My Computer window of Windows 98, if you want to format the selected disk, the first menu you choose is?

File editing and viewing tool