Computer And IT (Railway)

• One yottabyte is equal to 1,000 zettabytes.

• There are 1.000 terabytes in a petabyte, 1,000 petabytes in an exabyte, 1,000 exabytes in a zettabyte and 1,000 zettabytes in a yottabyte.

• And one yottabyte can hold more than 45 trillion 25-gigabyte Bluray discs.

• A web crawler, or spider, is a type of bot that is used to index the content of websites all across the Internet so that those websites can appear in search engine results.

• A spider visits Web sites and reads their pages and other information and then catalogues them in order to create entries for a search engine index.

• Alt + Tab switches between open applications in all versions of Windows.

• It controls the movement of the cursor on the computer screen and allows users to move and select folders, text, files, and icons on a computer.

• It is an object, which needs to put on a hard-flat surface to use.

• It is also called as read write memory or the main memory or the primary memory.

• The programs and data that the CPU requires during execution of a program are stored in this memory.

• It was established in 17 May 1865 as the International Telegraph Union, making it among the oldest international organizations still in operation.

• A gigabyte is a unit of information or computer storage meaning approximately 1.07 billion bytes.

• But 1 gigabyte = 1024 megabytes and this still be correct using the other acceptable standards.

• Such languages are considered high-level because they are closer to human languages and further from machine languages.

• 1 Terabyte is equal to 1024 gigabytes in binary.

• It translates huge amounts of collected data into a desirable form used by commoners to analyze and interpret the meaning of data processed.