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computer data storage

            
             US2780 Element 5- Show a understanding of computer data storage.
             On a computer, data is stored in the drives and discs. .
             Data that is stored on a computer is stored in either 3 drives which are "A drive" (floppy disk) "C drive" (hard disk) or "S drive." (server).
             All of the information and instructions for the computer are stored in files. These files can be on the hard drive, a floppy disk or a CD. .
             Points to remember: - All data is stored in a file in a particular file format.
             -Each document is a separate file.
             -All applications read at least one file format.
             -Many applications read multiple file formats.
             -Your data files are separate from the application.
             Nearly every desktop computer and server in use today contains one or more hard-disk drives.
             Data is stored in files so that it is kept safe and you know where to go next time you want to open that work. All data is stored in files, a file is a named collection of bytes.
             Hard drive-Data is stored onto the disk in the form of files. When a program running on the computer requests a file, the hard drive retrieves its bytes and sends them to the CPU one at a time. In the "c" drive data is stored on the surface of a platter in sectors and tracks. The "c" drive is connected directly to the motherboard. The process of low-level formatting a drive establishes the tracks and sectors on the platter. The starting and ending points of each sector are written onto the platter. This process prepares the drive to hold blocks of bytes. High-level formatting then writes the file-storage structures, like the file-allocation table, into the sectors. This process prepares the drive to hold files. Floppy disk-The floppy disk drive is used to imput data to your computer and also store and save data which can be later used. The "a" drive also enables you to copy files from a floppy disc to your hard disc, because this data is stored on a disk it is taking up no space on your computer.


Essays Related to computer data storage

1. Computer Storage - Primary and Secondary

To refresh your minds, a storage device is any computing hardware that is used for storing, porting and extracting data files and objects. ... Primary storage is the memory used when the computer is using the data. ... Also, the secondary storage devices store any data not currently in use. ... Basically when we talk about the data storage devices it is generally assumed to be the secondary memory. ... A floppy disk is a small removable storage medium that records data on thin magnetic films. ...

  • Word Count: 714
  • Approx Pages: 3
  • Grade Level: High School

2. Future Optical Computer Storage-Holographic Memory

FUTURE OPTICAL COMPUTER STORAGE-Holographic Memory Section 1- Introduction Every year, we cannot fail to notice how computer systems increase greatly in speed, memory capacity and performance. ... The need for greater data storage and faster data access is always increasing. ... This is one of the reasons why a new technology using optical data storage is being developed. ... Section 3.1 - How is binary computer data stored/read in this form? Holographic computer storage works on a similar principle to the way a hologram is created. ...

  • Word Count: 1161
  • Approx Pages: 5
  • Has Bibliography
  • Grade Level: High School

3. Data mining

These data marts are copied to other computers as data warehouses in their own right. ... Data marts are data warehouses built to meet particular user needs. ... A second type of relational database uses a specialized set of storage and access structures that optimize interactive retrieval (often at the expense of interactive update, which is not central to a data warehouse). ... The keys to success with these kinds of index structures are the sophistication of the optimizer and the storage structures themselves. For example, the Sybase IQ product is designed explicitly for data-warehouse qu...

  • Word Count: 560
  • Approx Pages: 2
  • Grade Level: Undergraduate

4. Storage Hardware

The primary storage units of many larger computers also include a small, very high-speed buffer or cache storage area. ... For example, a storage register temporarily holds data or instructions taken from or being sent to primary storage. ... Firmware Storage The CPUs of most computers today contain special storage circuitry modules where certain programs (software) are permanently stored in semiconductor ROM chips (hardware). ... Secondary Storage Hardware Secondary storage hardware consists of media and devices (such as magnetic disks and magnetic disk units) that are used to store data an...

  • Word Count: 653
  • Approx Pages: 3
  • Has Bibliography
  • Grade Level: Undergraduate

5. Computers and You

From doing very massive calculations, to storage of data and surfing the internet, to just name a few things, computers are basically everything. ... Hardware is any part of the computer that has a physical structure, such as the; keyboard, monitor, mouse, Computer data storage and hard drive disk. ... Input can take a variety of forms, from commands you enter by keyboard to data from another computer or device. ... Storage is referred to as the storage of data or memory, which can save digital data. ... Computers have become such an integral part our lives because we rely on them for numerica...

  • Word Count: 957
  • Approx Pages: 4
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6. Accounting

Another problem of computer systems is the fact that there can be difficulty in determining who entered the data. ... Computer systems also offer new opportunities for fraud. ... Certain levels of security must me maintained e.g. only the systems administrator can have access to the CPU and storage systems. ... These output controls are used to ensure the completeness, accuracy and timeliness of the output on screen, printed form as well as on storage media. ... Storage Controls When data is stored additional controls must be put into place to ensure that the data is stored properly and that t...

  • Word Count: 1631
  • Approx Pages: 7
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7. How To Build A Computer

For more than 50 years, similar punch cards were used as a form of input, output, and memory storage. ... It used punch cards to input and output data; registers served as memory storage. ... These computers used random access memory, or RAM, to store programs and for data storage. ... The first generation of computers; namely, the ENIAC, EDVAC, and UNIVAC, all used vacuum tubes to represent data. ... The desktop computer of today consists of four basic components: input devices, output devices, storage, and the central processing unit (CPU). ...

  • Word Count: 7384
  • Approx Pages: 30
  • Grade Level: High School

8. Primary And Secondary Storage

Primary and Secondary Storage When a computer boots up it reads from a memory source to get information. ... There is a difference thought of primary storage and secondary storage. The memory source a computer boots from is usually the computer's hard drive. The hard drive is one place where the computer stores data and information. ... Primary storage is storage that the computer needs to run. ...

  • Word Count: 221
  • Approx Pages: 1
  • Grade Level: High School

9. Computers

Over the last few decades or so computers have eased their way into everyday business activities. ... On a daily basis we put an incredible amount of information and data into our computers, trusting that it will be there when we need it again. ... The removable hard disk is safer, because it can be removed and kept separate from the computer. ... When writing to a CD-R the data is written as a change in the reflectivity of the disk's surface. This data, however, cannot be erased or altered once the CD-R has been written to. ...

  • Word Count: 839
  • Approx Pages: 3
  • Has Bibliography
  • Grade Level: High School

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