USB hard drives with encryption.

USB hard drives with encryption go by a number of different names, such as flash drives or thumb drives. These devices can fit onto your key ring and can contain a huge amount of storage. There are also memory storage cards that can also be used for this purpose.

As USB hard drives with encryption are easily lost or misplaced due to the compact size, many brands of these devices have the encryption placed directly into the hard drive itself to protect your data. Encryption software is also compatible with the majority of these USB hard drive devices. This security is an essential element to protect the data that you may be storing on one of these handy devices.

For the active business person or college student, A USB hard drive with encryption may be the perfect device to access your personal info anywhere safely.

One advantage that these USB hard drives with encryption have over other storage devices such as floppy discs or CDs is the ability to connect into a USB port, which allows them to be used with any computer system due to most new computers today may contain no floppy disk drives. These USB hard drives with encryption also have much more storage and are more compact and durable than these other memory storage devices.

Most of these USB hard drives with encryption use a standard type-A USB connection that can be plugged into any USB port on a computer system. The device contains a small circuit board that is encased in durable metal or plastic and the connectors are either protected by a plastic removable cover or retract into the casing itself. The computer system provides the power source for the USB hard drives with encryption.

The Usage

The most common use for these USB hard drives with encryption is to transport and store personal info. for example when medical records can be stored on a flash drive that will allow any hospital to access a person's medical history in the case of an emergency if the patient is unable to provide the information himself.

USB hard drives with encryption can also be used as a backup to store computer files in case the host device experiences a virus or other type of mechanical failure. Antivirus software can also be transferred from a flash drive into an infected host as well as storing a large amount of the host's data while that system is shut down, making it an invaluable tool in making essential computer repairs.

As USB hard drives with encryption are easily lost or misplaced, many brands of these devices have the encryption placed directly into the hard drive itself to protect your data. Encryption software is also compatible with the majority of these USB hard drive devices. This security is an essential element to protect the data that you may be .storing on one of these handy devices.

Know more on RAM--computer memory.

A device that holds data for a computer for a short period of time is called computer memory. If you have spent even just a little time with any computer, you will hear about RAM, Hard Disks, or CD's and DVD's. All these are means to store the information from a computer. The capacity and speed of storage varies much in these kinds of memory.

The Central Processing Unit of a computer is connected to the main memory. This main memory component is useful in storing the data and programs that are currently being run in the CPU. In modern computers the random access memory (RAM), a solid-state memory, is attached to the CPU using a memory bus. A memory bus is also called an address bus.

In addition to RAM, there may be a cache memory also, which contains small chunks of information that is to be used by the CPU soon. The idea is to reduce the fetching time, and thereby speed up the working of the CPU. Cache memory increases the throughput of the CPU, affecting the performance of the computer. In general, the RAM is the most important part of computer memory. RAM is made from integrated semiconductor chips.

RAM and Other Types of Memory:

The primary characteristic that separates RAM from other types of memory is the fact that any memory location RAM can be accessed at almost the same speed in a random manner. This is vastly different from the accessing approach used in other devices like the sequential one, used in tapes etc. Some RAM chips are volatile, meaning that as soon as the power supply is switched off to these chips, they lose all the data.

Some computers use a shadow RAM as well, which copies data present in ROM to make data availability faster, thereby helping increase the computer's speed and efficiency.

Cost:

In earlier times, the cost of computer hardware was enormous, so whenever an upgrade was required, it was much cheaper to buy the parts and do an upgrade rather than to buy a new computer. This has changed. Now the cost of hardware has gone down, and it is easier to replace the whole computer than to buy a few parts.

This fall in prices is applicable to the desktop computers used by simple homeowners only. Replacing servers and high-end computers is still very expensive, so in the case where any new function or capacity expansion is required, it is easier and cheaper to replace parts such as computer memory.

RAM Configurations:

RAM chips are available in various configurations ranging from 128 MB to 1 GB for laptops and desktops. For normal usage, this much RAM is enough. If you wish to play many games, watch movies, or work on graphics, then you will need to have more RAM as all these applications are memory hungry. In such cases, buying a new system altogether is not a very logical solution. All the computers and laptops come with internal expansion slots that can be used to expand the memory.

An optimal amount of computer memory is essential, as unlike earlier times, our memory needs have grown. Normally, we have an email client, messenger, and music already running when we sit down to work on our computers. All of these have taken their share of memory already, leaving little behind for the application we need to launch for our work. These days 1gz RAM is the recommended norm.