COMPUTER companies keep competing to build smaller devices (装置). They are finding new ways to put data (数据) into less space on a memory chip (内存芯片).
Computers have been made smaller to fit on to the desktop, smaller again to fit on our laps and again to fit into our shirt pockets (口袋).
Now, Stuart S. P. Parkin, an IBM researcher, is looking into a new idea in an IBM lab. If it proves successful, electronic devices could hold 10 to 100 times the data in the same amount of space.
That means the iPod that today can hold up to 200 hours of video could store every single TV program broadcast (播放) during a week on 120 channels.
Parkin thinks he is close to a breakthrough. This could increase the amount of data stored on a chip.
At present the flash drives (闪存卡) business is growing quickly. They are used in digital cameras, cellphones and PCs. Flash drives with multiple (多个) memory chips store up to 64gigabytes (十亿字节) of data. A single chip is expected to reach about 50 gigabytes in the next five years.
However, flash memory has a problem. Although it can read data quickly, it is very slow at storing it. That has led the industry on a hunt for new storage technologies.
Scientists say Parkin's new computer memory, called "racetrack memory (赛道内存)", could begin to replace flash memory in three to five years.
一级建造师二级建造师二级建造师造价工程师土建职称公路检测工程师建筑八大员注册建筑师二级造价师监理工程师咨询工程师房地产估价师 城乡规划师结构工程师岩土工程师安全工程师设备监理师环境影响评价土地登记代理公路造价师公路监理师化工工程师暖通工程师给排水工程师计量工程师
执业药师执业医师卫生资格考试卫生高级职称执业护士初级护师主管护师住院医师临床执业医师临床助理医师中医执业医师中医助理医师中西医医师中西医助理口腔执业医师口腔助理医师公共卫生医师公卫助理医师实践技能内科主治医师外科主治医师中医内科主治儿科主治医师妇产科医师西药士/师中药士/师临床检验技师临床医学理论中医理论
