COMPUTER PART=2

In addition to transmitting frames directed to a single address, local area networks are capable of sending frames directed to a group of address, called a multicast address, which can be received by a group of stations. They can also send frames directed to all stations using the broadcast address. A frame sent to multicast destination address can be received by all stations configured to listen for that multicast address.

The domain name system (i.e., "DNS") is responsible for translating domain names into a specific IP address so that the initiating client can load the requested Internet resources. The domain name system works much like a phone book where users can search for a requested person and retrieve their phone number.

The command that merges the contents of one file with another is called APPEND.

RENAME command is used to change the name of the file.

RESTORE command is used to restore the contents of the file.

ADD command is used to add a new file

The operations executed on data stored in registers are called Micro operations. Micro operation is an elementary operation performed (during one clock pulse), on the information stored in one or more registers. Examples of micro-operation include shift, load, clear, increment, count, etc.

A multiprocessor is a data processing system that can execute more than one program or more than one arithmetic operation simultaneously. It is also known as a multiprocessing system. Multiprocessor uses more than one processor and is similar to multiprogramming, which allows multiple threads to be used for a single procedure.

A hard disk is a secondary storage device attached to a computer. Secondary storage is memory that is stored external to the computer. It is mainly used for the permanent and long-term storage of programs and data. Hard Disk, CD, DVD, Pen/Flash drive, SSD, etc. are examples of secondary storage.

A hard disk is a secondary storage device attached to a computer. Secondary storage is memory that is stored external to the computer. It is mainly used for the permanent and long-term storage of programs and data. Hard Disk, CD, DVD, Pen/Flash drive, SSD, etc. are examples of secondary storage.

The clipboard is a data buffer used for short-term data storage and/or data transfer between documents or applications used by cut, copy and paste operations and provided by the operating system.

In computer system, one megabyte equals to 1024 kilobytes. In other words, there are 1,048,576 bytes in I megabyte according to the binary system which computers use. So one gigabyte is equal to 1,073,741,824 bytes in base 2. This also means that there are 1,024 megabytes in one gigabyte in binary system.

Passwords are often used to protect objects in the computer system in the absence of more complete protection schemes. They can be considered a special case of either keys or capabilities. Passwords are the most common approach to authenticating user identity.