lq-670k+win7
时间: 2024-01-07 22:00:56 浏览: 53
为了使用LQ-670K 打印机在Win7系统上,您需要遵循以下步骤。首先,您需要确保您的Win7系统是最新版本,并且更新了所有的驱动程序。其次,您需要下载并安装LQ-670K 打印机的驱动程序。您可以在厂商网站上下载相应的驱动程序,或者使用驱动程序安装光盘。安装完驱动程序后,您需要连接LQ-670K 打印机到您的Win7系统,并按照安装向导的步骤进行设置。接下来,您需要设置LQ-670K 打印机为默认打印机,这样在您打印文件时,系统会自动使用LQ-670K 打印机进行打印。最后,您可以通过打印测试页面或者打印文件来验证LQ-670K 打印机是否在Win7系统上正常工作。希望以上提示对您有所帮助。
相关问题
某系统采用动态分区分配方式管理内存,内存空间为 640KB,低端40KB 存放 OS。系统为用户作业分配空间时,从低地址区开始。对下列作业请求序列,画图表示使用首次适应算法进行内存分配和回收后内存的最终映像。作业请求序列如下 : 作业 1 申请 200KB,作业 2 申请 70KB ; 作业 3 申请 150KB,作业 2 释放 70KB ; 作业 4 申请 80KB,作业 3 释放 150KB ; 作业 5 申请 100KB,作业 6 申请 60KB ; 作业 7 申请 50KB,作业 6 释放 60KB。
以下是使用首次适应算法进行内存分配和回收后内存的最终映像:
初始状态:
```
+--------+--------+--------+--------+--------+--------+--------+--------+
| OS | | | | | | | |
+--------+--------+--------+--------+--------+--------+--------+--------+
0 40K 240K 390K 470K 570K 670K 740K 640K
```
作业 1 申请 200KB:
```
+--------+--------+--------+--------+--------+--------+--------+--------+
| OS | 1 | 1 | 1 | 1 | | | |
+--------+--------+--------+--------+--------+--------+--------+--------+
0 40K 240K 390K 470K 570K 670K 740K 640K
```
作业 2 申请 70KB:
```
+--------+--------+--------+--------+--------+--------+--------+--------+
| OS | 1 | 1 | 1 | 1 | 2 | 2 | |
+--------+--------+--------+--------+--------+--------+--------+--------+
0 40K 240K 390K 470K 570K 670K 740K 640K
```
作业 3 申请 150KB:
```
+--------+--------+--------+--------+--------+--------+--------+--------+
| OS | 1 | 1 | 1 | 1 | 2 | 2 | 3 |
+--------+--------+--------+--------+--------+--------+--------+--------+
0 40K 240K 390K 470K 570K 670K 740K 640K
```
作业 2 释放 70KB:
```
+--------+--------+--------+--------+--------+--------+--------+--------+
| OS | 1 | 1 | 1 | 1 | | 2 | 3 |
+--------+--------+--------+--------+--------+--------+--------+--------+
0 40K 240K 390K 470K 570K 670K 740K 640K
```
作业 4 申请 80KB:
```
+--------+--------+--------+--------+--------+--------+--------+--------+
| OS | 1 | 1 | 1 | 1 | 4 | 2 | 3 |
+--------+--------+--------+--------+--------+--------+--------+--------+
0 40K 240K 390K 470K 570K 670K 740K 640K
```
作业 3 释放 150KB:
```
+--------+--------+--------+--------+--------+--------+--------+--------+
| OS | 1 | 1 | 3 | 3 | 4 | 2 | |
+--------+--------+--------+--------+--------+--------+--------+--------+
0 40K 240K 390K 470K 570K 670K 740K 640K
```
作业 5 申请 100KB:
```
+--------+--------+--------+--------+--------+--------+--------+--------+
| OS | 1 | 1 | 3 | 3 | 4 | 2 | 5 |
+--------+--------+--------+--------+--------+--------+--------+--------+
0 40K 240K 390K 470K 570K 670K 740K 640K
```
作业 6 申请 60KB:
```
+--------+--------+--------+--------+--------+--------+--------+--------+
| OS | 1 | 1 | 3 | 3 | 4 | 6 | 5 |
+--------+--------+--------+--------+--------+--------+--------+--------+
0 40K 240K 390K 470K 570K 670K 740K 640K
```
作业 7 申请 50KB:
```
+--------+--------+--------+--------+--------+--------+--------+--------+
| OS | 1 | 1 | 3 | 7 | 4 | 6 | 5 |
+--------+--------+--------+--------+--------+--------+--------+--------+
0 40K 240K 390K 470K 570K 670K 740K 640K
```
作业 6 释放 60KB:
```
+--------+--------+--------+--------+--------+--------+--------+--------+
| OS | 1 | 1 | 3 | 7 | 4 | | 5 |
+--------+--------+--------+--------+--------+--------+--------+--------+
0 40K 240K 390K 470K 570K 670K 740K 640K
```
最终状态:
```
+--------+--------+--------+--------+--------+--------+--------+--------+
| OS | 1 | 1 | 3 | 7 | 4 | | 5 |
+--------+--------+--------+--------+--------+--------+--------+--------+
0 40K 240K 390K 470K 570K 670K 740K 640K
```
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