Buying a laptop? Would you like to update the old with a new hard drive? Addition to the hard disk space for storing applications, documents, music, movies and other data, you should also pay attention to the benefits of speed. If you want quick access to data stored on the hard disk of a laptop, you need to buy hard drives with SATA interface, higher speed and larger cache size of the buffer.
Buy Laptop with SATA> Drive
Consume Serial ATA (SATA) drive less electricity, but to save the battery of the laptop. But enchase performance of portable speed. Most hard drives usually support ATA/66 (66 MB / sec), Ultra ATA/100 (100 MB / sec) or SATA (150 Mbps) interfaces. The figures are for the maximum rate of explosion which pass the data on a disk in the system (66, 100 or 150 megabytes per second degree). SATA transmit data in a series (in a single stream of data) for PATA or againstParallel ATA which is commonly defined as an IDE hard drive.
Check the speed of rotation of the disc
Do not forget to check the speed of the hard drive!
The speed of rotation of the disc, you will learn how fast the disk rotates its disks in revolutions per minute (rpm). Increased speed means higher drive performance. At 7,200 rpm hard drive is faster than a 5400 rpm or 4200 rpm and offersperformance.
Cache size larger than the buffer - Better Performance
To increase the size of the buffer cache is the unit uses a temporary storage area performance data. If the computer requests data from the disk, where data are stored in the cache, there is a performance directly to the speed of the cache are related. Cache size larger than the buffer usually translates into better performance of the hard disk. Cache size of the buffer for most laptop hard drives is usually 2 MB,4 MB or 8 MB.

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