Random Access Memory (RAM)

What is Random Access Memory (RAM)?

The Random Access Memory is a volatile memory or temporary storage device and its use to store working data and machine code and Random Access Memory allows data to read or write in the physical location of data in contact with direct access to storage media such as DVD read/write, CD read/write, and hard disk. Therefore it is a part of the computer’s main memory, which is directly accessible by CPU and it is volatile in nature, it means if the power goes off, the stored information is lost and it is used to store the data that is currently processed by the CPU and most of the programs and data that are modifiable are stores in RAM.

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Printer

What is Printer? Another widely used output device is a printer and it is a computer peripheral device. A printer produces a hard copy of a processed text or a result. A hard copy refers to a permanent human-readable text or graphics taken on physical print media such as paper or transparency. A printer will use toner to provide a quality print on paper, a toner is a replaceable material. Once the toner gets empty we can refill it and reuse it. Most of the printers are used for commercial purposes such as private offices, industries, government offices, photo studios, etc,. Most of the printers are used to print emails, documents, files, images, color photos, color documents, color posts, banners, advertisement posters, etc,. There are the following 5 types of printers such as dot matrix printer, inkjet printer, laser printer, dye-sublimation printer, and plotter printer this are all the printer which uses nowadays for a printing purpose. A printer is characterized by the followin...

Virtual Private Network (VPN)

What is Virtual Private Network (VPN)? A virtual private network (VPN) is a secure connection between two private networks over a public network (in other words, over the Internet). All the data that flows over the VPN is encrypted. So anyone who steals packets from the VPN will find them unintelligible; only the parties on either end of the VPN are able to decrypt the packets. VPN connections are often called tunnels. Because they provide an isolated pathway from one point to another through the Internet. The only way to gain meaningful access to a VPN tunnel is at either end. Example for VPN Connections VPNs are used for There are two common uses for VPNs: To provide remote workers with secure access to your company network: To do that, you set up a VPN on the router, and then provide your remote workers with the credentials necessary to access the VPN. The remote workers can run a software VPN client on their home computers or laptops to connec...

Optical Disk Drives

What is Optical Drives? Optical Drives is a hardware device which used for reading and writing a data in CD and DVD Disc. It uses electromagnetic waves to produce visible light spectrum which provide a read/write data process in optical disc. The CD was develop by Sony and Denon which is introduce in 1984 and the storage capacity is 650 MB. The DVD is develop by Panasonic, Sony, and Toshiba which is introduce in 1995 and the storage capacity is 4.7 GB. Types of Optical Disk Drives Some of the commonly used optical storage devices compact disks are Compact Disk Read Only Memory (CD-ROM) Compact Disk Recordable (CD-R) Compact Disk Rewritable (CD-RW) Compact Disk Digital Video Disc (DVD) Types of Optical Disk Drives Compact Disk Read Only Memory (CD-ROM) The Compact Disk Read Only Memory it contains data were computers can read but not write or erase in CD-ROM it is a type of read-only memory. In the 1990s CD-ROM was use for software and data distribution for the computer. Some ...

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