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Computer Flash Drive

A computer flash drive is a small, portable flash memory card that plugs into a computer's USB port and functions as a portable hard drive. Computer flash drives are touted as being easy-to-use as they are small enough to be carried in a pocket and can plug into any computer with a USB drive. Generally computer flash drives have less storage capacity than an external hard drive, but they are smaller and more durable because they do not contain any internal moving parts.

A flash drive is not a component built into any computer .A flash drive is a portable storage device that allows you to copy/save information on to it and take it with you wherever you go. This way you can access the information on it from any computer with a USB port.

A USB thumb drive is a type of data storage devices that includes flash memory with an integrated USB interface. USB pen drives are typically removable and rewritable, and physically much smaller than a floppy disk.

USB flash disks often used for the same purposes for which floppy disks or CD-ROMs were used earlier. They are smaller, faster, have thousands of times more capacity, and are more durable and reliable because they have no moving parts. Until some years ago, most desktop and laptop computers were supplied with floppy disk drives, but floppy disk drives have been abandoned in favour of USB 2.0 or more recently with USB 3.0 ports.

Computer flash drive draws power from the computer through the USB connection. When the user plugs the device into the USB 2.0 or 3.0ports, the computer's operating system recognizes the device as a removable drive and assigns it a drive letter.

Compared to hard drives, usb flash drives use little power, have no fragile moving parts, and for most capacities are small and light. Data stored on flash drives is impervious to mechanical shock, magnetic fields, scratches and dust. These properties make them suitable for transporting data from place to place and keeping the data readily at hand. Computer Flash drives also store data densely compared to many removable media. Flash drives implement the USB mass storage device class so that most modern operating systems can read and write to them without installing device drivers. Some computers can boot up from flash drives. Specially manufactured usb flash drives are available that have a tough rubber or metal casing designed to be waterproof and virtually "unbreakable".

Like all flash memory devices, computer flash drives can sustain only a limited number of write and erase cycles before the drive fails. This should be a consideration when using a computer flash drive to run application software or an operating system. Most USB flash drives no longer include a write-protect mechanism, although a small number have a switch on the housing of the drive itself to keep the host computer from writing or modifying data on the drive. A drawback to the small size of flash drives is that they are easily misplaced, left behind, or otherwise lost. This is a particular problem if the data they contain are sensitive. As a consequence, some manufacturers have added encryption hardware to their drives.


Computer RAM

RAM is the most common type of memory found in computers and other devices, such as printers. RAM is an acronym for random access memory, a type of computer memory that can be accessed randomly. In common usage, the term RAM is synonymous with main memory, the memory available to programs.

Computer RAM is a form of computer data storage. Today, it takes the form of integrated circuits that allow stored data to be accessed in any order with a worst case performance of constant time. RAM is often associated with volatile types of memory (such as DRAM memory modules), where its stored information is lost if the power is removed. Many other types of non-volatile memory are RAM as well, including most types of ROM and a type of flash memory called NOR-Flash. The first RAM modules to come into the market were created in 1951 and were sold until the late 1960s and early 1970s.

Computer RAM is classified mainly into Static RAM or SRAM and Dynamic RAM or DRAM.

In static RAM, a bit of data is stored using the state of a flip-flop. This form of RAM is more expensive to produce, but is generally faster and requires less power than DRAM and, in modern computers, is often used as cache memory for the CPU. DRAM stores a bit of data using a transistor and capacitor pair, which together comprise a memory cell. The capacitor holds a high or low charge (1 or 0, respectively), and the transistor acts as a switch that lets the control circuitry on the chip read the capacitor's state of charge or change it. As this form of memory is less expensive to produce than static RAM, it is the predominant form of computer memory used in modern computers.

ECC memory, which can be either SRAM or DRAM, includes special circuitry to detect and/or correct random faults in the stored data, using parity bits or error correction code.In general, the term RAM refers solely to solid-state memory devices (either DRAM or SRAM), and more specifically the main memory in most computers.RAM is called "random access" because any storage location can be accessed directly. RAM is organized and controlled in a way that enables data to be stored and retrieved directly to specific locations.

Types of Static Random-Access Memory: -Non-volatile SRAM, Asynchronous SRAM, Bipolar Junction Transistor, Metal Oxide Semiconductor Field Effect Transistor (MOSFET), Quad Data Rate SRAM, DDR SRAM, Binary SRAM and Ternary SRAM.

Types of Dynamic Random-Access Memory: - SDRAM, DDR SDRAM, DDR2 SDRAM, DDR3 memory SDRAM, DRDRAM, PSRAM, RLDRAM, EDO DRAM, SGRAM and FPM DRAM.

Most personal computers are designed to allow you to add additional RAM modules up to a certain limit. Having more RAM in your computer reduces the number of times that the computer processor has to read data in from your hard disk, an operation that takes much longer than reading data from RAM. This makes the computer works faster than ever.


What Are Dedicated Servers?

Many people are unsure when purchasing server space whether they need to go for a shared server or a dedicated one. The difference is significant and it's important to take into account what exactly you need from your hosting company before making a decision.

Shared servers are perfect for companies that do not need a great deal of server space for their hosting plans. They may have new websites or sites that do not receive a high volume of traffic, meaning the demand that will be placed on the server is less. Because of this, it may be best for them to choose shared server space in order to save some money.

However, dedicated servers are entire servers that are leased to a single client. There are many reasons a client will choose to use a dedicated server rather than a shared one, including for privacy and security reasons as well as many others. Dedicated servers offer the client the space of the entire server to utilise and the client can enjoy a far more flexible type of hosting as they have full control over the server's functions and features. For example, they can choose which operating system to use, as well as which apps are installed and run, whereas with a shared server this is not always the case. What's more, many hosting companies also offer a good degree of management and administration to dedicated server clients, so you can be assured that your server will be looked after.

By using a dedicated server, the entirety of the machine's bandwidth and capabilities are used by your account only. That means that if you have a large website that is very busy and receives a lot of hits, it won't suffer due to sharing its bandwidth with the hosting company's other clients. Your website will be able to make the most of being stored on its very own, very reliable server and will receive less downtime, if any, if there is not a serious problem at any point.

Of course, the best person who can tell you whether or not your website would work best hosted on its own dedicated server is the hosting company itself. Do get in touch with hosts and ask for their advice - they will be able to help you choose. It may help to know that dedicated servers are known to give a larger return on investment over time than shared ones - after all, long term results is what you will be looking for!


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