Bissoy.com
Doctors Medicines MCQs Q&A

The instruction given to a computer system is loaded into the Instruction Register. The processor interprets the instruction and performs the required action. In general, these actions fall into four categories. Which of the following actions is not a part of these four categories? 

The instruction given to a computer system is loaded into the Instruction Register. The processor interprets the instruction and performs the required action. In general, these actions fall into four categories. Which of the following actions is not a part of these four categories?  Correct Answer Data Conversion

The correct answer is option 3.

Concept:

The fetched instruction is loaded into a register in the processor known as the instruction register (IR). The instruction is in the form of a binary code that specifies what action the processor is to take. The processor interprets the instruction and performs the required action. 

  • The instruction given to a computer system is loaded into the Instruction Register. The processor interprets the instruction and performs the required action. Those are data Processing, processor­-I/O, control, and execution.
  • The output of the IR is available to control circuits, which generate the timing signals that control the various data processing elements involved in executing the instruction. Data Conversion is not required when the instruction given to a computer system is loaded into the Instruction Register.
  • The data processing instructions cannot access data stored in memory. They operate only on CPU registers, and possibly immediate data that is encoded as part of the instruction. In general, data must first be moved from memory into a CPU register before processing can be performed.
  • There are two classes of I/O instruction:
    • Those that transfer a single item (byte, word, or doubleword) located in a register.
    • Those that transfer strings of items (strings of bytes, words, or doublewords) located in memory. These are known as "string I/O instructions" or "block I/O instructions".
  • The instruction register (IR) or current instruction register (CIR) is the part of a CPU's control unit that holds the instruction currently being executed or decoded.

Hence the correct answer is data Conversion

Related Questions

On a non-pipelined sequential processor, a program segment, which is a part of the interrupt service routine, is given to transfer 500 bytes from an I/O device to memory.     Initialize the address register     Initialize the count to 500 LOOP: Load a byte from device     Store in memory at address given by address register     Increment the address register     Decrement the count     If count! = 0 go to LOOP Assume that each statement in this program is equivalent to a machine instruction which takes one clock cycle to execute if it is a non-load/store instruction. The load-store instructions take two clock cycles to execute. The designer of the system also has an alternate approach of using the DMA controller to implement the same transfer. The DMA controller requires 20 clock cycles for initialization and other overheads. Each DMA transfer cycle takes two clock cycles to transfer one byte of data from the device to the memory. What is the approximate speedup when the DMA controller based design is used in place of the interrupt driven program based input-output?
A 5-stage pipelined processor has Instruction Fetch (IF), Instruction Decode (ID), Operand Fetch (OF), Perform Operation (PO) and Write Operand (WO) stages. The IF, ID, OF and WO stages take 1 clock cycle each for any instruction. The PO stage takes 1 clock cycle for ADD and SUB instructions, 3 clock cycles for MUL instruction, and 6 clock cycles for DIV instruction respectively. Operand forwarding is used in the pipeline. What is the number of clock cycles needed to execute the following sequence of instructions? Instruction Meaning of instruction I0 : MUL R2, R0, R1 R2← R0 * R1 I1 : DIV R5, R3, R4 R5 ← R3 / R4 I2 : ADD R2, R5, R2 R2 ← R5 + R2 I3 : SUB R5, R2, R6 R5 ← R2 – R6
The following are some events that occur after a device controller issues an interrupt while process L is under execution? (P) The processor pushes the process status onto the control stack. (Q) The processor finishes the execution of the current instruction. (R) The processor executes the interrupt service routine. (S) The processor pops the process status of from the control stack. (T) The processor loads the new PC value based on the interrupt. Which one of the following is the correct order in which the events above occur?
The following code segment is executed on a processor which allows only register operands in its instructions. Each instruction can have atmost two source operands and one destination operand. Assume that all variables are dead after this code segment. c = a + b; d = c * a; e = c + a; x = c * c; if (x > a) {     y = a * a; } else {      d = d * d;      e = e * e; } What is the minimum number of registers needed in the instruction set architecture of the processor to compile this code segment without any spill to memory? Do not apply any optimization other than optimizing register allocation.
The first and the last parts of the sentence/paragraph are numbered 1 and 6. The rest of the sentences are split into four parts and named A, B, C and D. These four parts are not given in their order. Read the sentence/paragraph and find out which of the four combinations is correct. 1. A computer is basically just a high-speed adding A. the computer is unable to operate until it is programmed to accept the variations. B. The business operations it performs are impressive only because C. If the input data are varied even a little, D. machine that performs the functions it is told to. 6. of the extremely high speed of manipulation.
In the following question, the first and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/passage is split into four parts and named P, Q, R, S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations is correct. S1. The modern-day computer has become an important part of our daily life. P. The mobile phone is also a type of computer because it fulfills all the criteria of being a computer. Q. Also, they are used in many fields like agriculture, designing, machinery making, defense, and many more. R. The computer is categorized into many different types like supercomputers, mainframes, personal computers (desktop), PDAs, laptops, etc. S. Nowadays, they use computers in every office whether private or government. S6. As the usage of computers increased it became a necessity for almost every field to use computers for their operations. 
With reference to 8085 microprocessor, which of the following statements are correct? 1. The DAD instruction adds the contents of the specified register pair to the contents of the DE register pair 2. The program counter is an instruction pointer 3. Whenever an instruction uses the HL pointer, the addressing is called indirect addressing. 4. HL register pair is also called data pointer
Which of the following are true? A. Desktop computer is a general-purpose computer made up of a separate monitor, keyboard, mouse and processor unit B. Laptop is where monitor, keyboard, pointing device, processor unit are combined in a single device C. Tablet is a device with a touch screen; which has a virtual keyboard which uses touch screen technology D. Smart Watch is a device that uses CRT technology so that the screen can bend around the wrist E. Mainframe computer runs small application where small data need to be processed Choose the correct answer from the options given below:
Consider a 32-bit processor which supports 70 instructions. Each instruction is 32 bit long and has 4 fields namely opcode, two register identifiers and an immediate operand of unsigned integer type. Maximum value of the immediate operand that can be supported by the processor is 8191. How many registers the processor has?
In the question below, are given a statement followed by three courses of actions numbered I, II and III. On the basis of the information given, you have to assume everything in the statement to be true, and then decide which of the suggested courses of action logically follow(s) for pursuing. Statement: Soon you would not need to carry original copies of all vehicle papers like driving licence, vehicle registration certificate, insurance, pollution certificate or the permits issued to commercial vehicles with you. According to a ToI report, the Centre plans to amend Motor Vehicles Rules to make it legal for any citizen to carry digital vehicle documents and simultaneously making it compulsory for traffic police to accept digital version of documents. This means that you would not have to carry physical papers in your vehicle as digital copies of the certificates would be valid.  Courses of action: I. The ministry has proposed installation of FASTags on the front windscreens. FASTag is a device that uses radio frequency identification (RFID) technology for making toll payments directly from the user account.  II. To avail the facility, one has to store all the vehicle documents on the government's cloud-based service DigiLocker and when asked he/she can simply display the stored certificates on a smartphone or any other digital devices. These digital copies can be shared with other departments as identity and address proof.  III. The government has increased the maximum load carrying capacity of heavy vehicles, including trucks, by 20-25 per cent besides scrapping the mandatory annual renewal of fitness certificates for freight carriers. Fitness certificates for trucks would now be renewed in every two years not annually.  Which of the following course/courses of action can be said to be said to be a rudimentary course/courses of action?