A register is a significant list or database of information for a specific purpose. It is an official document that comes handy during educational activities, company happenings, public occasions, and other kinds of gatherings. It can also be used as a tool in risk management. Register can be a noun or verb. Its noun meaning is a written record of something or an official list while its verb meaning is to enroll things for a database.
Computers have a special type of memory that is very fast and compact called register. It is a small space that is built into the central processor unit (CPU) that is used to store instructions, addresses and data. It is designed to be accessed quickly by the CPU and other components of the machine. Registers are important because they help the processor work faster.
The CPU or the heart of a computer is responsible for executing program codes, doing arithmetic calculations and logical comparisons. In order to do so, it has to take data and executable instructions from the main memory. During this process, it may require some working space to store intermediate results and some special instructions. These values should be able to be retrieved quickly so that the program execution speed can be improved. Registers do this task very efficiently.
There are various types of computer registers based on their function and performance. Some are general-purpose, like accumulator register and address register while others perform specialized tasks like index register and shift micro-operations. There are also others that are meant for storage and transfer between different hardware components like input/output or bus register.
Registers are a type of fast memory that is built into the CPU. They are used to store the instructions that have been fetched from the main memory or have been fetched from a peripheral device. The instruction is then decoded by the CPU before it is sent to its execution.
The accumulator register is one of the most important and commonly used computer registers. It is used to store the initial data, the intermediate result and the final result of a processing operation. This register is usually given the symbol AC.
An index register is a special type of computer register that allows a change in the immediate address of operands during the program execution. This is done by adding or subtracting the contents of this register with an effective address.
A shift register is used to perform various bit manipulation operations on non-numeric data in a register. Some examples of these are addition, subtraction, increment and decrement. This is a kind of register that is used for temporary storage and transfer of data in microcomputers.
In linguistics, the term register is a variation in the use of language in a particular social occasion or context. For example, you may use a different style of speaking when talking to a friend than when you are in a formal setting such as a job interview.