Inkjet printers.
An Inkjet printer, most commonly used by users today is a type of printer that creates digital image by spraying droplets of ink onto paper. The prices range from small inexpensive consumer models to very large professional ones, which cost more. The benefits of having one are that it makes less sound than the other printers when processing. They can print finer, smoother details through higher print head resolution, and many consumer inkjets with photographic-quality printing are widely available. Meaning to say is that these allow the inkjet printer to compete with the silver-based photographic papers traditionally used in black-and-white photography, and provide the same range of tones – neutral, "warm" or "cold".on the contrary, The lifetime of inkjet prints produced by inkjets using aqueous inks is limited; they will eventually fade and the color balance may change.besides that,, these inkjet nozzles are prone to clogging. Because the ink used in most consumer inkjets is water-soluble, you must take a good look with inkjet-printed documents to avoid even the smallest drop of water, which can cause severe "blurring" or "running."
Laser printers.A laser printer is this common computer printer that highly produces high quality text and graphics on plain paper. As with digital photocopiers and multifunction printers (MFPs), laser printers employ a xerographic printing process, but differ from analog photocopiers in that the image is produced by the direct scanning of a laser beam across the printer's photoreceptor.It utilizes a laser beam to produce an image on a drum. The light of the laser alters the electrical charge on the drum wherever it hits. The drum is then rolled through a reservoir of toner, which is picked up by the charged portions of the drum. Finally, the toner is transferred to the paper through a combination of heat and pressure. This is also the way copy machines work.
Magnetic ink character.
Magnetic ink characters (MIC) are numbers, letters, or symbols used with magnetic ink recognition technology. It is commonly used in banks, and is either called Magnetic Ink Character Recognition or MICR. MICs are printed at the bottom of a check in the MICR line and are usually 3 or 4 sets of numbers and symbolsthis allows them the way they handle customers' checks. Reader/sorter machines at banks pick up the MICs by using magnetization and then sort checks into their appropriate destinations.
Optical character recognition.
OCR, short for Optical character recognition, is the electrical translation of printed text into machine-encoded text. It is widely used to convert books and documents into electronic files, to computerize a record-keeping system in an office, or to publish the text on a website. OCR makes it easier to edit the text, search for a word or phrase, and store it all together. Moreover, after you’re done with it, you can edit the phrase with MS word.
Optical mark recognition.
Short for optical mark recognition, the technology of electronically extracting intended data from marked fields, such as checkboxes and fill-infields, on printed forms, for example, like surveys or multiple choices answer sheet. This technology is useful for applications in which large numbers of hand-filled forms need to be processed quickly and with great accuracy, such as surveys, reply cards, questionnaires and ballots. Usually, students will have to mark in pencil and the OMR will scan the printed information and relate to the answer scheme and check if the answers match or not.
Disk caching.
A portion of RAM used to speed up the data stored in the disk. The RAM can be part of the disk drive itself or it can be general-purpose RAM in the computer that is reserved for use by the disk drive. They also have hard drives whereby you can do disk caching as well.
Moreover, a soft disk cache works by storing the most recently accessed data in the RAM cache. When a program needs to access new data, the OS first checks to see if the data is in the cache before reading it from the disk. Due to the recognition of RAM and its speed , disk caching can significantly increase performance.
File compression.
File compression, reduces the size of the file. It is easier for attachments, so when you’re sending emails, its quicker as some mailing services do not allow you to send files which exceed their memory limit. Usually, it comes under ZIP types of folders, and many more.
File de-compression, however is the total opposite of compressing. It is when you leave the files large as it is. After, you are allowed to extract the folders. These types of decompression files could be used for movies, or downloading songs. However, this is not convenient as it will reduce the computer speed.
Internet hard drive.
This refers to a normal hard drive whereby you can access information, images, personal data, videos and many more provided that you're connected to the internet.
Similar to depositing money into your bank account, and later withdrawing that same money from any ATM machine, an Internet hard drive will allow you to "deposit" your computer files into a remote hard drive, and then later access those very same files from any other computer.
Optical disk drive.
Optical drives receives and saves data on optical discs like CDs, DVDs, and BDs (Blu-ray discs) which hold much more information than classic portable media options like the floppy disks. The Optical Disc Drive is Also Known As: optical drive, CD drive, DVD drive, BD drive, disc drive-In addition to this, most optical drives can play and/or record onto a large number of different disc formats. According to howstuffworks.com, popular formats include CD-ROM, CD-R, CD-RW, DVD, DVD-RAM, DVD-R, DVD+R, DVD-RW, DVD+RW, DVD-R DL, DVD+R DL, BD-R, and BD-RE.
Solid state storage
Solid-state storage is a nonvolatile removable storage medium.Some examples are USB's and other removable peripherals devices.
Good thing about this is that it contains no mechanical parts. Everything is done electronically. As a result, data transfer to and from solid-state storage media takes place at a much higher speed than is possible with electromechanical disk drives. The absence of moving parts may translate into longer operating life, provided the devices are reasonably cared for and are not exposed to electrostatic discharge.
0 comments:
Post a Comment