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The CORRECT option is (a) M*N

Explanation: Storage capacity is the product of a number of MEMORY locations that is the number of words and the word size or the number of bits stored per location. Storage capacity should be as LARGE as possible.

The correct ANSWER is (b) On-chip

To elaborate: The INTERNAL REGISTERS are present on-chip. They are therefore present inside the CPU. L1 cache is ALSO present on-chip inside the CPU.

The correct answer is (c) TERTIARY

Easy EXPLANATION: The tertiary storage is the correct OPTION. It is used in the realms of enterprise storage and SCIENTIFIC computing on large COMPUTER systems and business computer networks and is something a typical personal computer never sees firsthand.

Correct answer is (a) Secondary memory

Best explanation: The secondary memory is independent of the ADDRESS bus. It increases the STORAGE SPACE. It is implemented in the form of magnetic storage DEVICES.

Correct ANSWER is (a) Main

Easiest explanation: The size of the main memory depends on the size of the address bus of the CPU. The main memory mainly consists of RAM and ROM, where RAM contains the CURRENT data and programs and ROM contains permanent programs LIKE BIOS.

Right choice is (a) MEMORY

Easiest explanation: Memory is the place where data can be STORED and later RETRIEVED. Memory can be of classified into register, cache, main memory, ETC.

The CORRECT choice is (a) Registers

Easy explanation: Registers are the FASTEST MEANS of access for CPU. Registers are the SMALL memory locations which are present closest to the CPU.

The correct answer is (a) True

Easiest explanation: CACHE Memory is the memory closest to the CPU. REGISTERS, Cache and the main memory are the means of onboard STORAGE in the COMPUTER system.

The CORRECT ANSWER is (d) Processor

Easy explanation: The processor is responsible for processing the basic instructions in order to DRIVE a COMPUTER. The primary functions of a processor are fetch, decode and execute.

Right choice is (a) Memory ADDRESS register

Easy explanation: The MAR STANDS for memory address register. It holds the address of the ACTIVE memory location.

Correct option is (a) EPIC

To explain I would say: EPIC STANDS for Explicitly parallel instruction computing. It has a tighter COUPLING between the compiler and the processor. It enables the compiler to extract maximum parallelism in the ORIGINAL code.

The correct choice is (C) CISC

The explanation: CISC stands for complex INSTRUCTION SET computer. It is mostly USED in personal computers. It has a LARGE instruction set and a variable length of instructions.

Correct answer is (b) COMPLEX Instruction SET Computer

The best explanation: CISC is a large instruction set computer. It has VARIABLE LENGTH instructions. It also has variety of addressing MODES.

Right option is (a) True

The explanation: It takes exactly one clock cycle to PERFORM a BASIC operation, such as moving a byte of MEMORY from a LOCATION to another location in the COMPUTER.

Correct answer is (a) CLOCK speed

For EXPLANATION I would say: The number of clock CYCLES PER second is the clock speed. It is generally MEASURED in gigahertz(10^9 cycles/sec) or megahertz (10^6 cycles/sec).

The CORRECT answer is (b) Word transfer

Best explanation: The transfer is a word transfer. In the MEMORY subsystem, word is transferred over the memory DATA bus and it TYPICALLY has a width of a word or half-word.

Right OPTION is (a) 1

The BEST I can explain: There is only 1 sign bit in all the STANDARDS. In a 32-bit format, there is 1 sign bit, 8 bits for the exponent and 23 bits for the mantissa.

Correct ANSWER is (a) Associative

Explanation: This happens in the associative mapping. In this CASE, a block of data from the main memory can be MAPPED ANYWHERE in the CACHE memory.

Right answer is (a) Snoopy writes

To EXPLAIN: Snoopy writes is the efficient METHOD for updating the cache. In this CASE, the cache controller snoops or monitors the OPERATIONS of other bus MASTERS.

Correct ANSWER is (B) WRITE within

The explanation: There is no policy which is CALLED as the write within policy. The other three options are the write policies which are used to avoid cache COHERENCE.

The CORRECT option is (b) Inconsistent

The EXPLANATION: The cache is said to be inconsistent. Inconsistency must be AVOIDED as it leads to serious data BUGS.

The correct OPTION is (c) LEAST Recently USED

To explain I would SAY: LRU stands for Least Recently Used. LRU is a type of REPLACEMENT policy used by the cache memory.

Correct answer is (a) HIT

The BEST explanation: Whenever the data is found in the CACHE memory, it is CALLED as Cache HIT. CPU first CHECKS in the cache memory SINCE it is closest to the CPU.

Correct option is (B) CACHE MEMORY

The EXPLANATION is: It is called the Cache Memory. The cache memory is the high speed memory between the main memory and the CPU.

The correct answer is (b) False

The explanation: The CACHE MEMORY is IMPLEMENTED USING the SRAM chips and not the DRAM chips. SRAM stands for Static RAM. It is faster and is expensive.

The correct answer is (d) BACKWARD compatible

For explanation: The CPU is CALLED backward compatible since it contains the INSTRUCTION set of its PREDECESSOR. Manufacturers tend to group their CPUs into families having similar instruction set.

Right CHOICE is (b) Status

For EXPLANATION: Sign flag is a TYPE of status REGISTER or the flag register. It is used to indicate the sign of CERTAIN bits.

The correct answer is (c) JMP 2000h

To EXPLAIN I would SAY: The JMP INSTRUCTION is USED to move to a particular location. In 8085 microprocessor, JMP statement tells the processor to go to location 2000h (here).

The correct ANSWER is (a) STA 16-bit ADDRESS

To explain I would SAY: The instruction STA 16-bit address is a data transfer instruction.

STA MEANS Store in Accumulator.

The CORRECT OPTION is (d) MAR

The explanation is: MAR or the memory address register is not a visible register. This register is USER inaccessible. It contains the address of the memory block to be read or written to.

The correct ANSWER is (B) word size

Best EXPLANATION: The length of a register is called word size.It tells the number of bits a register can store.

Registers are a PART of the CPU.

Right choice is (a) True

Easiest EXPLANATION: Every INSTRUCTION has an opcode.Additionally, it may have ONE or more operands and the OP code indicates the operation to be PERFORMED.

Right ANSWER is (a) Instruction SET

Explanation: An instruction is any task which is to be PERFORMED by the PROCESSOR. Instructions are stored in the register. Instruction set is the set of MACHINE instructions.

Correct OPTION is (c) DELAY

The best explanation: In the hardwired control unit, the delay ELEMENT method uses D-flip flop which causes a delay. Since, in the delay element method, there must be a FINITE time gap between the 2 steps.

Correct ANSWER is (C) Control Signals

Easy explanation: Sequencing followed by the process of execution is PERFORMED by the Control signals. Sequencing is traversing each and every operation whereas execution causes the PERFORMANCE of each operation.

Correct option is (a) Datapath

For explanation I would say: The datapath contains the HARDWARE required to fetch the operations. The CONTROL tells the DATA path what needs to be DONE.

Correct OPTION is (d) IR

To elaborate: The IR which stands for the instruction register CONTAINS the last instruction fetched.

All the OTHERS OPTIONS are registers which are used for the fetch operation.

Correct answer is (b) Program COUNTER

Easiest explanation: The Program counter contains the address of the next instruction which is to be FETCHED by the control unit.

All other OPTIONS are INVALID.

The correct CHOICE is (d) MEMORY Buffer Register

The best explanation: The binary subtraction 0 – 1 GIVES the result 1.

A borrow of 1 is although generated and is REMOVED from the NEXT higher column.

Correct choice is (a) True

To EXPLAIN I would SAY: The control unit is referred to as the CENTRAL nervous system because it selects and interprets the instructions and COORDINATES execution.

Right CHOICE is (C) Central Processing Unit

To explain: The CPU is REFERRED to as the brain of a computer.

It CONSISTS of a control unit and the arithmetic and logic unit. It is responsible for performing all the processes and operations.