【摘 要】
:
PC—1500A型机是PC—1500系列机中,功能较强,内存为24k的袖珍机。但该机实际供使用的BASIC语言用户区只有21.8k字节,它比PC—1500机在内存上虽然增加了4k。但仍不能满足用户
论文部分内容阅读
PC—1500A型机是PC—1500系列机中,功能较强,内存为24k的袖珍机。但该机实际供使用的BASIC语言用户区只有21.8k字节,它比PC—1500机在内存上虽然增加了4k。但仍不能满足用户的要求,应用仍受到一定限制。为此,我们在剖析其内部系统后,研究出用SRAM芯片对PC—1500A型袖珍计算机内存容量进行扩充的方法。
PC-1500A-type machine is a PC-1500 series machine, powerful, memory is 24k pocket machine. However, the machine actually used BASIC language user area only 21.8k bytes, although it than the PC-1500 machine in memory, although an increase of 4k. But still can not meet the user’s requirements, the application is still subject to certain restrictions. To this end, we analyze the internal system, the study developed with the SRAM chip PC-1500A type pocket computer memory capacity expansion method.
其他文献
文章简要介绍了基于低比特率传输通道多媒体数据通信复用协议H.223的主要内容,重点讨论了其中一些关键技术的软件实现方法,并给出了相应的快速算法。
This paper briefly intr
IMO修改"国际海上人命安全公约"际海事组织(IMO)各成员国在解决了有关生效程序的争论之后成功地修改了国际海上人命安全公约(Solas)。根据在最后时刻提出的折中建议,Solas会议通过了一项修正案,公约中
A large amount of waste activated bleaching earth (wABE) is discarded by crude oil refining industries.The ABE has been used for adsorbing the dark color an
目前蔗渣代料栽培黑木耳常用“+”字形一次开洞法,此方法简单,管理方便,但料中的养分是否已充分利用了,值得探讨。为此,我们进行了两次开洞法对比试验。结果表明,两次开洞比
微机适时控制系统在工业现场运用中,抗干扰是关系到该系统能否可靠工作,能否被推广应用的重要问题,本文通过几个本单位研制并通过省市鉴定的项目,在工业现场应用中实验和模索
场切换方法传输两路电视的技术使得图象的垂直分辨力下降。为了克服这种不足,本文提出了一种用亮度场差分信号和色度信号对副载波f_s。进行正交的方法。该方法对两场亮度信号
Styrylpyrone-class polyphenols are one of the major classes of secondary metabolites produced by Inonotus obliquus in its natural habitats.This class of com
Mushrooms have attracted great attention as a functional food and as a source of bioactive metabolites for the development of drugs and nutraceuticals.To ad
专家建议,老人喝粥最好在粥中加点干果,不然会引起消化系统以及咀嚼功能的退化,不利于老年人的身体健康。专家为老年朋友推荐3种强身健体的粥。
Experts suggest that the e
Sapstain fungi are the cause of the discoloration of sapwood within blue, brown, grey or black.Control of these fungi with antagonistic compounds from Trich