Computer Basics Special Training
The wrong questions
Computer development history
The following are information processing is ().
A, information processing B, Category C, storing information D, information collection
The answer: \ (ABCD \)
Analysis: the meaning of information processing (refer to the collection of information, analysis, screening, processing, sorting, calculation, expression and communication.
A necessary condition for a computer virus infection is ().
A, B-virus program running in memory, disk read and write operations
C, for operating an executable program in memory containing the virus. D, run the game software
The answer: \ (B \)
The following instructions about computer knowledge, the right is ().
A, under the Windows operating system, when you delete a file on the disk are first stored in the Recycle Bin.
B, Foxmail is a tool for the e-mail.
C, folder organization is a hierarchical tree structure, in which the topmost desktop.
D, in order to improve the efficiency of software testing, should choose a high probability of errors found in test data.
The answer: \ (BCD \)
resolved: \ (A \) option does not necessarily have to be stored in the Recycle Bin, you may delete it.
Office automation (OA) is a computer application, by category of computer applications, it belongs to ().
A, scientific computing B, aided design C, real-time control D, the information processing
The answer: \ (D \)
Computer Hardware
The number of bytes of one sector on the hard disk is ().
A, 256 B, 1024 C, 512 D, 128
Answer: \ (C \)
Analysis: Size of a hard disk sector traditionally \ (512 \) bytes. However, Advanced Format drives, the physical sector size is \ (4096 \) bytes, but still down support \ (512 \) bytes, but if you do not \ (4K \) align, can affect performance.
Memory means (), which is generally in the microcomputer \ (Byte \) expressed in units of
A, the total number of memory cells within the memory
B, the number of bits of memory cells in the memory
transfer bits C, the memory and computing unit
D, allowing storage of program number
Answer: \ (A \)
Analysis: computer's memory capacity generally refers to the capacity of random access memory (RAM), is the critical parameter in the memory.
A computer hardware system () composition.
A, B operator, the controller
C, D memory, input and output devices
The answer: \ (ABCD \)
In the following narrative about computer memory, the correct description is ().
A, is the configuration of the semiconductor integrated circuit
B, after power-down can not save the information
C, a data storage unit in accordance with access information
D, is accessed in accordance with address information storage unit
The answer: \ (AD \)
miscellaneous:
- The ALU
- ROM is a semiconductor memory