A computer has a main memory with 16 bits per word and a CPU with16 general purpose registers. The instruction set consists of10 differentoperations and each instruction has two operands. Each operandidentifies an immediate value, a register value, or a memory location.The processor can access memory using 6-bit addresses. Specify theinstruction fonnat and the number of bits in each field if the instructionis stored in one word of memory.

A processor has 512 distinct instructions and 80general purpose registers. A 24 bits instructionword has an opcode, one register operand anda memory operand. How many bits arereserved for memory operand field.

For each instruction in program memory, the CPU goes through a

The rnairr rnemory of a computer has 256 K words of 32 bits each. The instructbfisetof the CPU of the computer consists of 150 dift'erent operations. All instructiorff h6vean operation code and two (02) equal operand fields. The length of each instruction inthe instruction set is equal to a memory word. Draw the instruction format and specifuthe number of bits in each field

1. is directly accessed and manipulated by the CPU during program execution a. RAM b. Cache c. Primary memory d. Registers 2. is known as CPU’s working memory a. Cache b. Primary Memory c. Register d. secondary memory 3. is referenced by the CPU without address. a. RAM b. Primary Memory c. hard disk c. Registers 4. Which component of computer co-ordinates overall functioning of the computer. a. ALU b. CU c. Registers c. North Bridge 5. The primary memory of a computer consists of a. Only RAM b. Only ROM c. Both a and b d. Flash drives 6. Which of the following is not a secondary memory a. Magnetic Tape b. Hard disk c. Optical Disk d. Cache memory 7. is a large printed circuit board having many chips, ports, controllers and otherelectronic components mounted on it a. Integrated Circuit b. Motherboard c. Chip set d. Firewire 8. Which among the following are characteristics of motherboard? a. only form factor b. only Chip set c. Only Processor Socket d. All of these 9. form factor refers to a. Geometry b. Electrical requirements c. Dimensions d. All of these 10. characteristic of motherboard should be considered to maximize thecomputers upgradability. a. Form Factor b. Chip set c. Processor socket d. All from (a) to (c) 11. Which of the following motherboard is old model mother board a. AT b. ATX c. XT d. Baby AT 12. Which of the following motherboard has no ports a. AT b. ATX c. XT d. Baby AT 13. Pentium -I, Pentium-II and Pentium – MMX processors used in type ofmotherboards a. AT b. ATX c. XT d. Baby AT 14. Pentium -III Processors are used in type of motherboards a. ET b. ATX c. XT d. Baby AT 15. Both Pentium III and Pentium IV processors are supported by motherboards a. XT b. AT c. Baby AT d. ATX 16. Processors supported by ATX mother board are a. Only Pentium-IV, Dual Core b. Only Dual Core and Core 2 Duo c. Quad Core, i3, i5 and i7 d. All of the above 17. Which among the following motherboards have slot type and PGA type processorsockets a. ATX motherboard b. Baby AT motherboard c. XT motherboard d. AT motherboard 18. Choose the component not present in Baby AT motherboard a. Slot type processor sockets and PGA processor sockets b. SDRAM slots and DDRRAM slots c. PCI slots and ISA slots d. AGP slots 19. Which one of the following has 24-pin Power connector a. AT motherboard b. Baby AT motherboard c. XT motherboard d. ATX motherboard 20. XT motherboard has power pin connectors a. 24 b. 12 c. 20 d. 20 and 24 21. MPGA processor sockets are found in type of motherboards a. Baby AT b. ATX c. AT c. XT 22. Choose the very old motherboard model from the following a. ATX b. XT c. Baby AT d. AT 23. Which of the following motherboard type consists of SATA connectors a. AT motherboard b. Baby AT motherboard c. ATX motherboard d. XT motherboard 24. One of the following is the main component of the motherboard a. BUS b. BIOS c. CMOS d. Processor 25 ------------------ is the frequency with which a processor executes instructions. a. Bus speed b. Clock speed c. MHz d. GHz 26.The computers operating speed is linked to the speed of ------------- a. BUS b. Memory access c. System Clock d. North Bridge 27. CPU’s performance is measured by the per second a. Number of instructions decoded b. Number of instructions loaded c. Number of instructions executed d. Number of programs executed 28. CPU is fabricated on a single IC chip is known as-------------- a. Multiprocessor c. graphic processor b. Microprocessor d. microcomputer 29._________establishes a communication path for movement of data betweenprocessor and memory a. Cache b. Bus c. motherboard d. North Bridge 30.Which one of the following is the alternative name for North Bridge a. Host Bridge b. south chipset c. North Chipset d. Both (a) and (c) are correct 31. is responsible for control of high speed components like CPU, RAM and video card a. South chipset b. south bridge c. North Chipset d. Both (a) and (b) 32. is responsible for control of slower components. a. South chipset b. north bridge c. North Chipset d. Both (a) and (c)

Question 6Which of the parts of a computer actually executes the program instructions?1 pointSecondary MemoryInput/Output DevicesCentral Processing UnitMain Memory