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ACCUMULATOR
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Who performs arithmetic operation on numerical data stored in registers?
Arithmetic operations are performed by using Boolean Gates in a register. A register consists of 32 or 64 bits usually. For eg we want to add two single bits A and B. We have A B Sum Carry 0 0 0 0 0 1 1 0 1 0 1 0 1 1 0 1 Now, clearly Sum = A (xor) B; and Carry = A (and) B If you are adding more than one bit (8 bit, say). Then you need 8 such operations. Carry from one bit will be forwarded to another bit and would be taken into consideration. Then Sum = A (xor) B (xor) Cprev Carry(new) = A (and) B + B (and) Cprev + A (and) Cprev + = (or) . = (and)
Define elastic potential energy and gravitional potential energy?
Gravitational potential energy, is the energy an object possesses by reason of its position in a gravitational field. While elastic potential energy, is the energy stored by a material or object as a result of deformation e.g. the energy stored in a bow when it is stretched.
Draw the flowchart and explain arithmetic addition and subtraction algorithm with example?
The signs use an exclusive OR gate where if the output is 0, then the signs are the same.Hence, add the magnitudes of the same signed numbers. If the sum is an overflow, then a carry is stored in E where E = 1 and transferred to the flip-flop AVF, add-overflow.Otherwise, the signs are opposite and subtraction is initiated and stored in A.No overflow can occur with subtraction so the AVF is cleared.If E = 1, then A > B.However, if A = 0, then A = B and the sign is made positive.If E = 0, then A < B and sign for A is complemented.
What was food stored in in the bible days?
Yes, they stored food from the fields and animals.
How is the hex 1234 stored in big endian?
Big endian does not change the ordering, so it is stored as 0x1234
Explain about alu with block diagram?
An ALU (Arithmetic Logic Unit) is a digital circuit that performs arithmetic and logical operations on binary numbers. Its block diagram consists of input registers, a control unit, arithmetic logic circuits, and output registers. Input operands are fetched from the registers, processed by the ALU based on the control signals, and the result is stored back in the output registers. It is a critical component of a CPU responsible for executing arithmetic calculations and logical operations.
Where data is stored in CPU?
No data is stored in the CPU. The CPU only performs arithmetic and logical operations. However, the CPU is provided with a small memory unit called cache, which rapidly feeds the CPU with data to calculate.
What are the three basic categories of items that can be stored by memory?
Operating system and system software; application software; data being processed
Difference between a counter and a register?
A register can hold data, and it can be used for temporary storage or, in the case of an accumulator, it can participate in arithmetic or logical operations. A counter is a special case of a register. Usually, it can only be loaded, stored, or incremented, or used for the stack or as the program counter.
Which are the possibe arithmetic operation with pointers?
Pointers in C are stored as integers. You can perform any mathematical operations on pointers that you can perform on ints.Of course not, the following operations are possible: =, +, +=, ++, -, -=, --, *, [], ->, typecast
What is an accumulator in microprocessor?
the accumulator is an 8-bit register then is part of the arithmetic/logic unit(ALU). this register is used to store to store 8-bit data and to perform arithmetic & logical operation. the result of an operation is stored in the accumulator. the accumulator is also identified as register A.
What activities are carried out by the ALU?
The Arithmetic Logic Unit (ALU) is an essential component of a computer's central processing unit (CPU). It performs various operations related to arithmetic and logic. One of the primary activities of the ALU is arithmetic operations such as addition, subtraction, multiplication, and division. These operations are performed on binary numbers, which are represented in the form of bits. The ALU can perform these operations on two or more operands, depending on the instruction given by the CPU. The ALU also performs logical operations such as AND, OR, NOT, and XOR. These operations are used to manipulate the bits in the operands to produce a desired output. For example, the AND operation returns a 1 only if both the operands have a 1 in the same position. Besides these basic operations, the ALU also performs comparison operations. It compares two operands and produces an output indicating whether they are equal, greater than, or less than each other. The ALU also performs shift operations, which involve moving the bits in an operand left or right by a certain number of positions. Shift operations are useful in programming, where they can be used to manipulate data stored in registers. Finally, the ALU can also perform other operations such as incrementing and decrementing. These operations are used to modify the value of a register or memory location. In summary, the ALU performs a variety of operations related to arithmetic, logic, comparison, and manipulation of binary numbers. Its efficient operation is crucial for the overall performance of a computer's CPU.
What are the functions of accumalater?
In computers, an accumulator is an 8-bit register that is a part of ALU (Arithmatic-Logic Unit) of a processor.It is used for temporary storage of 8-bit data and to perform arithmatic operations like addition,subtraction,multiplication,division or logical operations like AND,OR,XOR etc.The result of operation is stored in accumulator.
What is microprocessor and explain the parts of microprocessor using block diagram?
Block diagramWorking:· CPU consists of three basic units: control unit, Arithmetic Logical Unit (ALU) and memory unit.· Input is given through the input devices to CPU.· Control unit controls communication within ALU and memory unit.· Decides which circuit is to be activated.· For reading instruction it uses Fetch-execute mechanism.· Control unit gets instruction from memory.· Control unit decides what to do of that instruction and transfers it to the ALU.· ALU performs various arithmetic operations like addition, subtraction, multiplication, division and logical operations like AND, OR, NOT, NAND etc. on that instruction.· Results of ALU are stored in the memory or resistor for its further operations.· After completing the instruction, stored results are passed to the output devices.· To synchronize all these operations CPU uses its own system clock.
What is logical file?
Logical file is a type of file that provides a view of the data stored into the Physical file. It does not contain data. A logical file contains only an index to the data stored into the physical file.
What is a collection of data that is stored in a logical and structured way?
A database is a collection of data that is stored in a logical and structured way, typically organized in tables with rows and columns. It allows for efficient retrieval, storage, and manipulation of information in a systematic manner.
What kind of information is stored in the boot recorder?
It contains information about the disk or logical drive.
