Disk caching saves copies of the downloaded files on the hard drive so they doesn't need to be downloaded to be redisplayed. These pages can be viewed by anyone with permission to the cache folder. Pages transmitted with SSL encryption often contain sensitive information and caching of these pages to disk may present a privacy risk. This preference controls whether to cache to disk pages that were transmitted with SSL encryption.

Redundant arrays of inexpensive disks (RAID)

RAID is a method in which information is spread across several disks, using techniques such as disk striping (RAID Level 0) and disk mirroring (RAID level 1) to achieve redundancy, lower latency and/or higher bandwidth for reading and/or writing to disks, and maximize recoverability from hard-disk crashes.

File compression and decompression

File compression can significantly reduce the size of a file (or group of files). Smaller files take up less storage space on the host and less time to transfer over the network, saving both time and money.

Magnetic Ink Character Recognition (MICR)

MICR is a character recognition used by the banking industry for cheques. The character is read by the computers but it can easily see by our naked eyes. MICR characters are printed in special typefaces with a magnetic ink or toner, usually containing iron oxide.

Optical-Character Recognition (OCR)

OCR is a kind of computer science that reads picture of handwritten, typewritten or printed text into machine-readable code. OCR allows you to take an article and feed directly into an computer file then using a word processor to edit it.

Optical-Mark Recognition (OMR)

Optical-Mark Recognition is the process of capturing human-marked data from document forms. OMR is fast and used for variety applications such as simple surveys, verify presence of signatures or tests.

Dot-Matrix Printer

A kind of printer that produces characters and illustrations by impact and striking pins against an ink ribbon to print closely spaced dots in the appropriate shape. Widely used to print multipart forms and address labels.

Plotter

A plotter is a vector graphics printing device to print graphical plots that connects to a computer. There are two types of main plotters. Those are pen plotters and electrostatic plotters.

Photo Printer

A photo printer is an inkjet printer that is specifically designed to print high quality digital photos on photo paper. These printers usually have a very high number of nozzles and are capable of printing droplets as small as 1 picoliter.

Portable Printer

Basically, portable printer's function is as same as the common one. The advantages of portable printer is able to bring along and its more convenience. 

Fax Machine 

Fax machine are an essential telecommunication device for transmitting and receiving distance static images, forms and documents by way of wire or wireless transmission mode.The advantages of this kind of telecommunication instruments are that images or characters can be transmitted and received. A fax machine transmits a document by producing a graphic image of the document which is converted into a data signal. The data signal is transmitted over conventional phone lines to a receiving fax machine which uses the data signal to drive a printer portion of the receiving fax machine to print an image of the document.

Multifunctional Device

Multifunction Device (MFD), is an office machine which incorporates the functionality of multiple devices in one, so as to have a smaller footprint in a home or small business setting (the SOHO market segment), or to provide centralized document management/distribution/production in a large-office setting. A typical MFP may act as a combination of some or all of the following devices:

Internet Telephones

Internet telephone has the same function of the phone but refers to communication services like voice, facsimile, and voice-messaging application. They are transported via the Internet. The voice communications is delivered over IP networks. Other terms frequently encountered and synonymous with VoIP are IP telephony, Internet telephony, voice over broadband (VoBB), broadband telephony, and broadband phone.