Advice 1: How to find hard drive capacity

In some cases, to determine the size of the hard disk sufficient to look at its properties in Windows Explorer. But if your goal is to know the capacity of the hard drive, not connected to a computer, use special devices.
How to find hard drive capacity
Instruction
1
If you are baffled regarding the size of the hard disk on a desktop or laptop that you use, click on the icon "My computer" on the desktop to open Windows Explorer. This window can be open and different. Hover over the "start" button, click the right mouse button and from the menu select "Open Windows Explorer" (or "Conductor").
2
In the opened window you will see one or more icons labeled "local disk" (C, D, E, etc.), as well as icons of the drives. Last you are not interested because they do not have relations to the hard drive. The disc itself can be "broken" into several sections, and in this case you'll need to lay down the dimensions of each of them to know the total hard disk capacity. If the local disk is only one, is still easier – it is sufficient to know its capacity.
3
To do this, right-click the mouse on the icon of the local disk and select properties from the context menu. On the "General" tab under "Capacity" you will see the data on the size of the hard drive. However, remember that the actual amount will always be less than specified by the manufacturer data. For example, if the declared size of 500 GB, the actual capacity of the drive will be only 452 GB.
4
To find the volume of a drive that is connected to the computer, use the box to connect the hard drive via a USB port. Since the drives are different sizes and have different interface connectors, the box to connect the Winchester should be selected based on its parameters. If the drive fits in the standard size and interface to the existing ribbon cable with additional connector, connect the hard drive to it, after opening the system unit, and disabling the power supply. After a successful connection to the computer and see the capacity of the disk by the above method.

Advice 2: How to know the speed of the stick

The main characteristics of the stick, or rather a USB stick, are its capacity and performance. Under the performance of the stick you know the speed of read and write information in megabytes per second. To know the speed of the flash drive by the experimental read and write large amounts of information.
How to know the speed of the stick
You will need
  • USB flash drive, computer
Instruction
1
The manufacturer specifies the speed of reading and writing stick in its specifications on its official website. Write speed may be three times less than speed of reading. Performance, specified in megabits per second is 8 times less than the speed specified in megabytes per second. In the Datasheet of the flash drives is the interface through which you can determine the performance of the stick. The most common USB 2.0 port. Its maximum speed transfer of 480 Mbps or 60 MB/s. In reality the performance is rarely more than 30 MB/s.
2
Specified in the technical specifications of the manufacturer , the speed of read and write data does not match the actual, which depends on the computer and the operating system. To determine the actual speed it is necessary to test the flash drive on your PC installed on it OS. On the stick first recorded one large file volume of 600?700 megabytes, for example, a downloadable film, measured and spent time on it. So we define the speed record. For more speed I need to write about ten small files of the same total volume and measure the time of their recording. You can then calculate the average speed of the two obtained results and to continue to focus on it. To determine the speed of reading, carry out the reverse operation in the same manner: read a large file from pendrive to your hard disk, measure the time taken to read the same amount of small files, and again measure time. Calculated reading speed in both cases. The arithmetic average of these two velocities will indicate the speed of reading information from the specific USB drive on the computer when its operating system.
3
If the resulting speed read/write stick is insufficient to operate with large volumes of information, it is possible to acquire a keychain from NAND memory, which productivity is higher.
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