Java题库——Chapter1 计算机、程序和Java概述

weixin_30675247

于 2019-09-18 10:01:00 发布

阅读量4.6k

点赞数 6

文章标签： java c/c++ 数据库

原文链接：http://www.cnblogs.com/wkfvawl/p/11539881.html

版权

本文介绍了计算机的基础知识，包括硬件、CPU、速度衡量单位、二进制系统、字节大小以及存储设备。此外，还讨论了操作系统、程序、计算机语言、解释器和编译器的作用。特别提到了Java编程语言的起源、特点以及其在网络应用中的角色。同时，文章包含了Java程序编写的基本元素，如主方法的声明和输出语句。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

1)________ is the physical aspect of the computer that can be seen.
A)Hardware B) Operating system C)Application program D) Software

2)________ is the brain of a computer.
A)Disk B) Memory C)Hardware D) CPU

3)The speed of the CPU is measured in ________. (Choose all that apply.)
A)megabytes B) megahertz C)gigabytes D) gigahertz

4)Why do computers use zeros and ones?
A)because binary numbers are the bases upon which all other number systems are built.
B)because combinations of zeros and ones can represent any numbers and characters.
C)because binary numbers are simplest.
D)because digital devices have two stable states and it is natural to use one state for 0 and the other for 1.

5)One byte has ________ bits.
A)12 B) 4 C) 16 D) 8

6)Which of the following are storage devices? (Choose all that apply.)
A)hard disk B) CD-ROM C)flash stick D) floppy disk

7)________ is a device to connect a computer to a local area network (LAN).
A)Regular modem B) DSL C)NIC D) Cable modem

网络接口控制器（英语：network interface controller，NIC），又称网卡。

8)________ ar