1. The number of binary digits represented by 1K bytes in a microcomputer is ( ).
A, 1000 B, 8x1000 C, 1024 D, 8x1024
2. Only ( ) can be directly recognized and executed by computer hardware.
A, high-level language B, symbolic language C, assembly language D, machine language
3. The materials and their products used to store computer input and output data are called ( ).
A, Input-output media B, Input-output channels C, Input-output interfaces D, Input-output ports
4The following is a discussion of interpreted and compiled programs, the correct one of which is ( ).
A. Both compiled and interpreted programs can produce a target program B. Neither compiled nor interpreted programs can produce a target program
C. Compiled programs can produce a target program, but interpreted programs cannot D. Compiled programs cannot produce a target program, but interpreted programs can
5 Special care should be taken to avoid ( ) when working with hard disks.
A. Noise B. Vibration C. Humidity D. Sunlight
6.ndows operating system is a ( ).
A, single-user multitasking operating system B, single-user single-tasking operating system C, multi-user single-tasking operating system D, multi-user multitasking operating system
7Set the Windows desktop already has the icon of a certain application, and to run the program, you can ( ).
A. click the icon with the left mouse button B. click the icon with the right mouse button C. double-click the icon with the left mouse button D. double-click the icon with the right mouse button
8The following is a description of the Windows filename, and the error is ( ).
A. Chinese characters are allowed in filenames B. Multiple dot separators are allowed in filenames C. Spaces are allowed in filenames D. Vertical lines ("|") are allowed in filenames
9Through the "Run" item in the "Start" menu in Windows ( ).
A. You can run all the commands of DOS B. You can run only the internal commands of DOS C. You can run the external commands and executable files of DOS D. You can run only the external commands of DOS
10.When a person's computer accesses the Internet by dial-up, the device that must be used is ( ).
A, network card B, modem (Modem) C, telephone D, browser software
11 with multimedia capabilities of microcomputer systems, commonly used CD-ROM is ( ).
A, read-only high-capacity floppy disks B, read-only CD-ROMs C, read-only hard disks D, semiconductor read-only memories
12 The following are four statements related to addresses, of which the one in error is ( ).
A. An address register is a register used to store an address B. An address code is the part of an instruction that gives information about the address of the source operand or the destination address of the result of an operation
C. Address information can be transmitted on an address bus as well as control and other information
D. An address bus cannot be used for transmitting control and
13. Of the four types of memory listed below, volatile memory is ( ).
A, RAM B, ROM C, PROM D, CD-ROM
14. The following characters have the smallest ASCII value ( ).
A, a B, A C, x D, Y
15. Of the following numbers represented by four different number systems, the one with the largest value is ( ).
A, Binary number 11011101 B, Octal number 334 C, Decimal number 219 D, Hexadecimal number DA
16. The storage capacity required to store 400 24x24 dot-matrix Chinese character glyphs is ( ).
A. 255KB B. 75KB C. 37.5KB D. 28.125KB
17. The operation of deleting a selected file or folder without putting it in the Recycle Bin is ( ).
A. Press Delete (Del) B. Drag and drop the file or folder directly into the Recycle Bin with the mouse
C. Press Shift + Delete (Del) D. Use the Delete command in the File menu of My Computer or Explorer window
18. In Chinese Windows, in order to switch between full-width and half-width states, the key you should press is ( ).
A, Shift + space B, Ctrl + space C, Shift + Ctrl D, Ctrl + F9
19. In the process of using Windows, if there is a mouse malfunction, in the case of not being able to use the mouse, you can open the "Start" menu is the operation ( ).
A. Press Shift+Tab B. Press Ctrl+Shift C. Press Ctrl+Esc D. Press Spacebar
20. The Clipboard in Windows is ( ).
A. An area of the hard disk B. An area of the floppy disk C. An area of the cache D. An area of the memory
21.
A．Browser software B．Remote login software C．Network file transfer software D．Send and receive e-mail software
22The most central component of a microcomputer hardware system is ( ).
A. motherboard B. CPU C. internal memory D. I/O devices
23 Of the following terms, the one that is an indicator of monitor performance is ( ).
A, speed B, reliability C, resolution D, accuracy
24.Cache memory (Cache) is configured to address ( ).
A. speed mismatch between memory and auxiliary memory B. speed mismatch between CPU and auxiliary memory
C. speed mismatch between CPU and internal memory D. speed mismatch between host and peripheral devices
25. computer virus is a kind of ( ).
A. special computer component B. game software C. special program prepared by human beings D. biological virus that can be infected
26. In a microcomputer storage system, PROM is a ( ).
A, read-write memory B, dynamic random access memory C, read-only memory D, programmable read-only memory
27. MIPS is commonly used in the computer field to describe ( ).
A, the computer's computing speed B, the reliability of the computer C, the computer's runnability D, the computer's expandability
28. In Windows, the user at the same time to open a number of windows can be cascading or tiled arrangement, in order to change the arrangement of the window, you should be carried out by the operation is ( ).
A, with the right mouse button click on the "taskbar" blank, and then in the pop-up shortcut menu to select the way to arrange
B, with the right mouse button click on a blank space on the desktop, and then in the pop-up shortcut menu to select the way to arrange
C, the first to open the "Explorer" window, select the "View" menu under the "Arrange Icons"
D, first open the "Explorer" window, select the "View" menu under the "Arrange Icons" item
D, first open the "My Computer" window, select the "View" menu under the "Arrange Icons" item
29. In the Windows "Recycle Bin", the storage of the ( ).
A, can only be deleted files or folders on the hard disk B, can only be deleted files or folders on the floppy disk
C, can be deleted files or folders on the hard disk or floppy disk D, can be deleted files or folders in all the external memory
30. in the Windows Start menu under the "Documents" menu to store the ( ).
A. Recently Created Documents B. Recently Opened Folders C. Recently Opened Documents D. Recently Ran Programs
31. The most notable feature of the Windows operating system that distinguishes it from DOS and Windows 3.X is that it is ( ).
A. provides a graphical interface B. can run multiple programs at the same time C. has hardware plug-and-play functionality D. is a true 32-bit operating system
32. A sequence of instructions designed to solve a particular problem is called a ( ).
A, document B, language C, program D, system
33. Among the various types of computer operating systems, time-sharing system is a ( ).
A, Single-user batch operating system B, Multi-user batch operating system C, Single-user interactive operating system D, Multi-user interactive operating system
34．If two zeros are added to the right of a non-zero unsigned binary integer to form a new number, the value of the new number is the value of the original value of the ( )
35．
A. four times B. twice C. one-fourth D. one-half
35. The most important feature of a computer's work is the ( ).
A, storing programs and automatic control B, high speed and high accuracy C, reliability and usability D, memory capability
36．Word processing software such as WPS and Word belongs to the category of ( ).
A、Management software B、Network software C、Application software D、System software
37．The Chinese character database of the first level of Chinese characters (***3755 characters) in the national standard GB2312-80 is stored in a 16×16 dot matrix, which takes up approximately the storage space of ( ).
A, 1MB B, 512KB C, 256KB D, 128KB
38. In Windows, there are two program groups that manage system resources, they are ( ).
A, "My Computer" and "Control Panel" B, "Explorer" and "Control Panel"
C, "My Computer" and "Explorer" D, "Control Panel" and the "Start" menu
39. In the right part of the Windows "Explorer" window, all the files are selected. The operation is ( ).
A. Use the left mouse button to click each file to be unselected B. Hold down the Ctrl key, and then use the left mouse button to click each file to be unselected
C. Hold down the Shift key, and then use the left mouse button to click each file to be unselected D. Use the right mouse button to click each file to be unselected
40. In Windows, you can pop up a dialog box ( ).
A. selecting a menu item with an ellipsis B. selecting a menu item with a right triangular arrow
C. selecting a menu item with a grayed-out color D. running the application corresponding to the dialog box
41. In Windows, the "taskbar" ( ).
A, can only change the position can not change the size B, can only change the size can not change the position
C, can not change either the position or the size D, can change both the position and the size
Two, fill in the blanks
1. microcomputer system reliability can be measured by the average ( ) working time.
2. 4 binary bits can represent ( ) states.
3. In the Windows Recycle Bin window, to recover a selected file or folder, use the ( ) command in the File menu.
4. The Chinese character code based on GB code is a two-byte code, and the highest bit of each byte is ( ).
Disk drives are ( ) devices.
5. In Windows, to bring up the shortcut menu for a folder, point the mouse to the folder and press the ( ) key.
6. In Windows, the Recycle Bin is an area in the ( ).
1. There have been four generations of computers since their inception, and the main basis for dividing the era is the computer's
A. size B. function C. performance D. components
2. The current computer is generally known as the fourth generation of computers, which uses the logic components of the
A. transistors B. integrated circuits C. tubes D. large-scale integrated circuits
3. p>
3. The versatility of computers allows them to solve a variety of different arithmetic and logic problems, which is mainly determined by the computer's
A. high-speed computing B. instruction system C. programmability D. logic function
4. The computer has a wide range of applications at present, but statistically the most widely used field is
A. data processing B. scientific computing C. design assistance D. design assistance D. computerization D. process control
5. Current weather forecasting has been widely used numerical forecasting methods, this numerical forecasting methods will involve the application of computers
A. scientific computing and data processing B. scientific computing and auxiliary design
C. scientific computing and process control D. data processing and auxiliary design
6. The earliest design of computer The earliest computers were designed for scientific computation, but they were mainly used for
A. scientific research B. military C. business D. management
7. Early computers were larger, more energy-consuming and slower, mainly because they were limited by the
A. technology level B. components C. design level D. metamaterials
8. A. speed B. reliability C. resolution D. accuracy
9. A complete computer system should contain the computer's
A. mainframe and peripherals B. hardware and software C. CPU and memory D. controller operator
10. The capacity of a computer's memory may vary depending on the computer's model. The basic unit of computing capacity is
A. word B. page C. byte D. bit
11. Different chips have different word lengths, and there are various models of chips, among which the word length of the Pentium 4 chip is
A. 8-bit B. 16-bit C. 32-bit D. 64-bit
12. The system software which can process a high-level language source program into a target program is
12. system software is
A. Interpreter B. Assembler C. Compiler D. Editor
13. Information transfer between a microcomputer and an external device can be done in
A. serial only B. serial or parallel C. connected D. parallel only
14. What is commonly referred to as the "A. hardware B. software C. instruction system D. CPU
15. The mainframe of a computer consists of
A. an operator plus a controller B. a central processing unit plus main memory
C. an operator plus peripherals D. an operator plus memory Operator plus memory
16. The main function of an operator in a computer is to perform
A. algebraic and logical operations B. algebraic and quadratic operations C. arithmetic and logical operations D. arithmetic and algebraic operations
17. To this day, computers use programmed memory, or the stored-program principle, which was developed by
A. Mohr B. Turing C. von Neumann D. Neumann D. E.F. codd
18. The computer components that can be directly accessed by the central processing unit (CPU) are
A. memory B. hard disk C. floppy disk D. external memory
19. There are various technical specifications for computers, but the most important ones should be
A. language, peripheral, and speed B. main frequency, word length, and capacity C. peripherals, Capacity and volume D. Software speed and weight
20. The main basis for measuring the value of a microcomputer is its
A. function B. performance-price ratio C. operation speed D. number of operations
21. The main frequency of a microcomputer largely determines the computer's operation speed, which refers to
A. how fast or slow a computer can operate B. the microprocessor clock operating frequency
22. Microprocessor clock frequency
C. Number of basic instruction operations D. Number of accesses per unit of time
22. The public **** path for transferring information from various parts of a computer is called a bus, and the number of bits of information transferred at one time is called the bus's
A. length B. granularity C. width D. depth
23. According to the type of information transferred on the bus, buses can be divided into several types. According to the type of information transmitted on the bus, the bus can be divided into many types, the following does not belong to the bus is
A. switching bus B. data bus C. address bus D. control bus
24. The keyboard is generally divided into four areas, in which shift is the shift key, which belongs to the
A. main keyboard area B. keypad area C. function key area D. edit key area
25. The mouse has the advantages of simplicity, intuition, and fast movement, but the following four items cannot be clicked with the mouse
A. keyboard B. menu C. icon D. button
26. barcode technology should belong to the application of computer systems
A. input technology B. output technology C. display technology D. index technology
27. hard and soft disks and disk drives are the main part of a microcomputer. Hard and soft disks and disk drives are the external storage devices of microcomputers, which are used to realize the
A. input B. output C. input and output D. recording and filtering
28. There are many special terms used in the descriptions of hard and soft disks and drives, and the ones that are not related to them are
A. density B. track C. sector D. cursor
29. In printer terminology, "24-pin" means
A. 24 x 24 pins on the print head B. 24 pins on the signal header
C. 24 pins on the print header D. 24 pins on both the signal header and the print header
30. The external memory, which is used in most of today's microcomputers, does not include
31. External memory, excluding
A. hard disk B. CD-ROM C. floppy disk D. magnetic tape
31. The following computing tools are analog in nature
A. abacus B. hand-cranked computer C. calculating ruler D. desktop computer
32. The high accuracy of numerical calculations carried out by computers is determined by the
A. Calculation speed B. Memory capacity C. External memory capacity D. Basic word length
33. A computer is capable of calculating problems with a large amount of data and program statements, the following factors play a major role in
A. Large color display B. Fast printer C. Large internal and external memories D. Good programming language
34. The following four sets of numbers are in order of binary, octal and hexadecimal, which meets the requirements
A. 11, 78, 19 B. 12, 77, 10 C. 12, 80, 10 D. 11, 77, 19
35. Which of the following descriptions of software configurations is incorrect
A. Software configurations are independent of the hardware B. Software configurations affect the system functionality
C. Software configuration affects system performance D. Software configuration is constrained by hardware
36. The information in ROM is
A. pre-written by the computer manufacturer B. written during system installation
C. written by the user at any time depending on user needs D. written by the program on a temporary basis
37. The following groups of devices also include A. CRT, CPU, ROM B. Disk, Mouse, Keyboard
C. Mouse, Plotter, CD-ROM D. Tape, Printer, Laser Printer
38. A computer system should consist of hardware and software, and the software must include
A. Interface software B. System software C. Application software System software C. Application software D. Support software
39. Von? The basic principle of Neumann's computer is
A. program externalization B. logical connection C. data internalization D. program storage
40. The software that translates the assembly language source program into computer-executable code is known as
A. compiler B. assembler C. manager D. service program
41. The 7-bit binary encoding of the ASCII code can represent characters. The number of characters that can be represented by the 7-bit binary code ASCII is
A. 127 B. 255 C. 256 D. 128
42. Fingerprint recognition, image and sound processing using computers belongs to the field of application of
A. scientific computation B. automation C. auxiliary design D. information processing
43. Among the various devices of a microcomputer, the one that can be used for both input and output is
A. disk drive B. keyboard C. mouse D. plotter
44. In microcomputers, the most commonly used character encoding is
A. BCD code B. ASCII code C. Chinese character encoding D. Complementary code
45. The principle of operation of a computer is the
A. electromechanical principle B. stored program C. information processing
46. B. stored program C. program control D. stored program and program control
46. Operators, controllers, and registers belong to
A. arithmetic-logic units B. motherboards C. CPUs D. accumulators
47. The number of bytes that can be stored on a typical CD-ROM disk is
A. 680KB B. 680MB C. 512GB D. 1024KB
48. The English word "byte" is usually used to denote
A. word B. word length C. byte D. binary bit
49. A computer is configured with 128MB of RAM or more, where 128MB means
50. 128MB means
A. 128 x 1000 x 1000 x 8 bytes B. 128 x 1000 x 1000 bytes
C. 128 x 1024 x 1024 x 8 bytes D. 128 x 1024 x 1024 bytes
50. The acronym used to denote computer-aided design is
51. Computers are used in a wide range of applications, and the following statements are correct
A. Data processing is mainly used in numerical calculations B. Aided design is the use of computers for drawing and process design
C. Process control can only be applied to production management D. Computers are mainly used for scientific calculations
52.
52. The fastest read/write speed in the following memories is
A. RAM B. hard disk C. CD-ROM D. floppy disk
53. The external memory (auxiliary memory) in the following four items is
A. RAM B. ROM C. diskette D. dummy disk
54. The Ben 3 or Ben 10 in the microcomputer. "A. the model of the CPU B. the model of the monitor C. the model of the printer D the model of the hard disk
A. the model of the CPU D the model number of the hard disk
55.The most basic unit used in computers to indicate the size of the internal memory capacity is
A. Bit (BIT) B. Byte (BYTE) C. Word (WORD) D. DOUBLE WORD (DOUBLE WORD)
56.8 bytes contain binary bits
A. 8 B. 16 C. 32 D. 64 D . . 64
57. the following character has the smallest ASCII value
A. a B. A C. f D. Z
58. the main memory of a computer is
A. RAM and disk B. ROM C. RAM and ROM D. hard disk and controller
59. what is stored in the storage unit in a computer
A. data and instructions B. only data C. only programs D. only instructions
60. The Chinese translation of Cache is
A. buffer B. cache C. read-only memory D. programmable read-only memory
61. A sequence of instructions designed to solve a particular problem is called a
A. document B. ROM D. hard disk and controller
62.
A. document B. language C. system D. program
62. The personnel management program of an organization belongs to the category of
A. system program B. system software C. application software D. target software
63. The main reason why all information in a computer is represented in binary is that it is
A. faster to compute B. saves components C. requires the least physical components . the simplest physical components required D. the ease of information processing
64. A computer's internal memory is cheaper than its external memory
A. cheaper B. larger in storage capacity C. faster in access D. more expensive but able to store more information
65. In the two bytes storing the internal code of a Chinese character, the highest bits of each byte are
A. 1 and 0 B. 0 and 1 C. 1 and 1 D. 0 and 1 D. 1 and 1 D. 1 and 1 D. 1 and 1 D. 1 and 1 D. 1 and 1 D. 1 and 1 D. 1 and 1 D. 1 and 1 D. 1 and 0 1 C. 1 and 1 D. 0 and 0
66. It is generally believed that the world's first electronic digital computer was born in the twentieth century
A. 1946 B. 1952 C. 1959 D. 1962
67. The main components of the computer hardware system has five major parts, and the following are not part of the five major parts of
A. Operators, and the computer system has five major parts.
A. Operators B. Software C. I/O devices D. Controllers
68. After the power failure, the information stored in the data loss of memory is
A. RAM B. Hard disk C. ROM D. Floppy disk
69. computer software can be divided into two categories of system software and application software, does not belong to the system software is
A. Operating system B. Database management system Operating system B. Database management system C. Customer management system D. Language processing program
70. computers are currently used in various industries and fields, and the earliest design of computers is aimed at
A. Data processing B. Scientific computing C. Auxiliary design D. Process control
71. computers have a wide range of technical indicators, but to determine the accuracy of the computer's calculations is
72. A. Computing speed B. Basic word length C. Storage capacity D. Binary numbering system
72. The code used to process data and instructions inside a computer is
A. Decimal code B. Binary code C. ASCII code D. Chinese character code
73. The decimal number for the binary number 10110001 should be
74. The binary number 10110001 corresponds to the decimal number
A. 123 B. 167 C. 179 D. 177
74. The binary number corresponding to the decimal number 160 corresponds to the decimal number
A. 10010000 B. 01110000 C. 10101010 D. 10100000
75. The microcomputer's microprocessor chip is integrated with the It is
A．Controller and operator B．Controller and memory C．Controller and CPU D．Operator and IO interface
76．The input and output devices that are essential to keep a microcomputer running properly are
A．Keyboard and mouse B．Display and printer C．Keyboard and display D．Mouse and keyboard
77．In computer programming languages, the only ones that can be directly recognized and executed by the computer are
A. machine language B. assembly language C. algorithmic language D. high-level language
78. In a computer system, the system software that is closest to the hardware is
A. language processor B. database management system C. service program D. operating system
79. In a computer, the smallest unit of information is
A．Byte B．Bit C．Word D．KB
80．In a microcomputer, sending data to a floppy disk is called
A．Writing the disk B．Reading the disk C．Entering the disk D．None of the above
81．Of the following, they are not performance indicators of microcomputer is
A．Word length B． Access cycle C. Main frequency D. Hard disk capacity
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