Computer And IT (Part-II) (Railway)

• It is the address of a resource, which can be a specific web page or a file, on the internet.

• The URL was introduced in 1994 by Tim Berners-Lee as well as the Working Group on Internet Engineering.

• The URL is the address or string of a character that is used to browse Internet data.

• It is a cyber attack that uses disguised email as a weapon.

• Using this technique attackers acquire sensitive data, such as bank account numbers, through a fraudulent solicitation in email or on a web site.

• It is a memory subsystem designed to transfer data at faster rates.

• RDAM is made up of a Random Access Memory (RAM), a RAM controller and a bus path that connect RAM to microprocessors and other PC devices.

• It is a types of synchronous dynamic random-access memory (SDRAM) developed by Rambus from the 1990s through to the early-2000s.

• It is a computing device that allows for input by a user and output to a display, like a computer monitor.

• A VDU consists of a display device and a keyboard, and could also include a mouse.

• DOS basically refers to any kind of operating system but is majorly used for MS-DOS.

• It is the most cost-effective in areas with a low market penetration of cable TV.

• The ADSL modem contains a POTS splitter chip that splits the bandwidth of the phone line into a voice and a data channel.

• John Mauchly Eckert Invented it.

• It was completed in 1945

• It was first put to work for practical purposes on December 10, 1945.

• 1024KB equals one megabyte (MB).

• A Byte is equal to 8 Bits.

• It is an American multinational technology company.

• It is a search engine, cloud computing, software, and hardware.

• The application programs make use of the operating system by making requests for services through a defined application program interface (API).

• Unix, MS DOS, Linux are examples of the operating system.