Laptop's Hard Drives: Speed Also Matters by Danijel Zivkovic
Buying a laptop? Want to upgrade your old one with a new hard drive? Besides hard drive's space size for storing your applications, documents, music, movies and other data, you should also pay attention to its speed performance. If you want fast access to stored data on your laptop's hard disk,... Check the Hard Drive Rotational Speed Don't forget to check the hard drive rotational speed! ... The hard drive rotational speed tells you how fast the drive spins its disks in revolutions per minute (rpm).

The Hard Drive Buyers Guide by Steve Jones
As home computers become more advanced, and our uses for them become more complex, the need for higher performance and capacity hard drives increases. It is now possible to choose hard drives with vastly different capacities and rotational speeds, making things more confusing for the consumer. ... Rotational speed is really important, so if your going to be using your PC for music or gaming then you need to buy a 7200RPM drive. ... The second factor we really need to consider is the rotational speed of the hard drives.

Hard Drive Selection by J A Carpunky
Perhaps the biggest mistake people make when building their computer(s) is to underestimate the importance of the hard disk drive (HDD). In our modern society, bigger is synonymous with better, so when you go to buy a hard drive you look at how "big" it is, its data capacity. ... There are 4 primary aspects to look at in a hard drive (in order of importance): Rotational frequency and average seek time Buffer size Internal/external transfer rates Capacity Rotational frequency has become a large selling point (5400/7200/10000/15000RPM) recently, so you shouldn't have too much...

Tips To Select Proper Hard drive by Krishna Pai
Day by day computers are getting advanced. Capacity and performance are increasing with every passing year. This is true for the primary storage also. Latest Hard disks are getting bigger in capacity and with higher rotational speed can access the data faster. ... Hard drive storage capacity, speed, brand and price. ... Let us select the proper speed. ... The 5400 RPM means hard disk will be rotating at a speed of 5400 revolutions per minute. ... If you have to carry data frequently, you can go for external hard drive.

Buying A Computer: Drives (Part 2): Affordability And Performance Buying Tips by Olan Butler
Hard Drive and Multimedia Drives: Today, we will investigate the new SATA drives. This hard drive does not come in the Compaq Presario SR1617CL-B; however, this is one of the technologies that you should be aware of when doing comparison shopping. SATA stands for Serial ATA. ... NCQ employs an algorithm called Rotational Position Ordering (RPO) to speed access to the data. ... The SATA hard drives are designed to deliver 150 Mbytes/sec transfer speed. ... Well, NCQ using RPO fixes this inefficiency problem.

Rotary Tables and Rotary Stages by Gordon Petten
A rotary table is designed to be used in conjunction with vertical mills. When a rotary table is put on a vertical mill what you create is a machine that is theoretically capable of reproducing itself. A standard milling machine set-up usually involves aligning the work with the table and then... Applications range from indexing to high-speed laser machining to precision wafer inspection. ... Experts also agree that having the choice of lateral and rotational degrees of freedom also lends that extra precision that is needed in delicate jobs as well as the strength for larger projects.

Which Notebook Computer Has Your Name On It? by Titus Hoskins
Notebook Computers Are Sexy! Granted, the notebook computer may just be the sexiest accessory this side of a Baywatch Extra! But are they worth the extra money? Should your next PC be a notebook or laptop computer? What are the pros and cons of owning a notebook computer? ... Tip: You might also want to check the rotational speed of your notebook's hard disk as it can affect performance a 5,400rpm notebook disk is much faster than a 4,200rpm model. ... * Speed: This is how fast your computer can process data and perform your tasks.