Computer Science: Disk Storage and RAM

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Questions and Answers

An SIMD ______ Array processor.

Array

A measure used to evaluate computers in their ability to perform a given number of floating point operations per second is called as ______

FLOPS

Full-form of SIMD is ______

Single instruction stream and multiple data stream

How many types of multiprocessors?

2 Signup and view all the answers

Which of the following is a disadvantage of Multiprocessor Systems?

All of the above Signup and view all the answers

Which processor requires more number of registers?

RISC Signup and view all the answers

Which two pipelines (in proper sequence) are used to calculate an inner product in vector processor?

Multiplier pipeline, Adder pipeline Signup and view all the answers

The term ____ is used to denote billion FLOPS.

Gigaflops Signup and view all the answers

Which multiprocessor system contains a master-slave relationship?

Asymmetric Multiprocessor Signup and view all the answers

A multiprocessor operating system must take care of

Unauthorized data access and data protection Signup and view all the answers

Rotational latency refers to

the time it takes for the platter to make a full rotation Signup and view all the answers

What characteristic of RAM memory makes it not suitable for permanent storage?

it is volatile Signup and view all the answers

The circuit used to store one bit of data is known as

Flip Flop Signup and view all the answers

The average time required to reach a storage location in memory and obtain its contents is called the

access time Signup and view all the answers

The idea of cache memory is based

on the property of locality of reference Signup and view all the answers

Cache memory acts between

CPU and RAM Signup and view all the answers

Write Through technique is used in which memory for updating the data

Cache memory Signup and view all the answers

Generally Dynamic RAM is used as main memory in a computer system as it

Has higher speed Signup and view all the answers

Virtual memory consists of

Static RAM Signup and view all the answers

If the main memory is of 8K bytes and the cache memory is of 2K words. It uses associative mapping. Then each word of cache memory shall be

16 bits Signup and view all the answers

Cache memory works on the principle of

Locality of reference Signup and view all the answers

The main memory in a Personal Computer (PC) is made of

Both (A) and (B) Signup and view all the answers

Memory unit accessed by content is called

Associative Memory Signup and view all the answers

The advantage of memory mapped I/O over I/O mapped I/O is

Faster Signup and view all the answers

Which of the following register is not present in EU (Execution Unit) of the 8086 microprocessor?

IP Signup and view all the answers

Which signal is used to demultiplex the Address bus of 8086

ALE Signup and view all the answers

Which of the following signals is used to control the direction of dataflow of bus transceivers

DT / R Signup and view all the answers

Which of the following signal belongs to maximum mode only

LOCK Signup and view all the answers

Which of the following pair of registers is invalid

CS:SP Signup and view all the answers

Which of the following flags is used for single stepping

Trap Flag Signup and view all the answers

Direction flag is used with

String instructions Signup and view all the answers

What does microprocessor speed depend on?

Address bus width Signup and view all the answers

A register capable of shifting its binary information either to the right or the left is called a

Shift register Signup and view all the answers

What is meant by Mask able interrupts?

An interrupt that can be turned off by the programmer Signup and view all the answers

In a DMA write operation the data is transferred

from I/O to memory Signup and view all the answers

Which of the following have been developed specifically for pipelined systems?

Optimizing compilers Signup and view all the answers

The pipelining process is also called as

Assembly line operation Signup and view all the answers

The fetch and execution cycles are interleaved with the help of

Clock Signup and view all the answers

Each stage in pipelining should be completed within

1 cycle Signup and view all the answers

To increase the speed of memory access in pipelining, we make use of

Cache Signup and view all the answers

Pipelining is a _______ technique?

Parallel operation Signup and view all the answers

Consider the multiplication of two 5 X 5 matrices using a vector processor. How many product terms are there in each inner product?

5 Signup and view all the answers

Which of the following is a type of array processors?

SIMD array processor Signup and view all the answers

Full-form of PE in SIMD array processor?

Processing Element Signup and view all the answers

Study Notes

Computer Organization and Architecture

Unit-III: Memory and I/O

The time taken to read a block of data from a disk into memory is composed of:
- Seek time
- Rotational latency
- Transfer time
Rotational latency refers to the time it takes for the platter to make a full rotation.
RAM memory is not suitable for permanent storage because it is volatile.
A Flip Flop is a circuit used to store one bit of data.
Access time is the average time required to reach a storage location in memory and obtain its contents.
The idea of cache memory is based on the property of locality of reference.
Cache memory acts between the CPU and RAM.
Write Through technique is used in cache memory for updating data.
Dynamic RAM is used as main memory in a computer system because it has higher speed.
Virtual memory consists of Magnetic memory.
Cache memory works on the principle of locality of reference.
Memory unit accessed by content is called Associative Memory.

Unit-IV: Microprocessor

The advantage of memory mapped I/O over I/O mapped I/O is that it is faster.
In EU (Execution Unit) of the 8086 microprocessor, IP (Instruction Pointer) is not present.
ALE (Address Latch Enable) is used to demultiplex the Address bus of 8086.
The signal used to control the direction of data flow of bus transceivers is DT/R (Data Transmit/Receive).
LOCK is a signal that belongs to maximum mode only.
The invalid pair of registers is CS:SP.
The Trap Flag is used for single stepping.
The three basic sections of a microprocessor unit are:
- Control and timing
- Register
- Arithmetic/logic unit (ALU)
The data bus is a bidirectional bus.
Direction flag is used with String instructions.
Microprocessor speed depends on the clock.
A shift register is a register capable of shifting its binary information either to the right or the left.
Maskable interrupts are interrupts that can be turned off by the programmer.
In a DMA write operation, the data is transferred from I/O to memory.

Unit V: Pipelining and Parallel Processing

Optimizing compilers have been developed specifically for pipelined systems.
The pipelining process is also called as Assembly line operation.
The fetch and execution cycles are interleaved with the help of the clock.
Each stage in pipelining should be completed within 1 cycle.
To increase the speed of memory access in pipelining, we make use of Cache.
Pipelining is a parallel operation technique.
In a DMA write operation, the data is transferred from I/O to memory.
Multiplying two 5x5 matrices using a vector processor requires 5 product terms in each inner product.
SIMD array processor is a type of array processor.
The full form of PE in SIMD array processor is Processing Element.
The full form of SIMD is Single Instruction stream and Multiple Data stream.
An SIMD array processor is a processor that has single instruction multiple data organization.
FLOPS (Floating Point Operations Per Second) is a measure used to evaluate computers in their ability to perform a given number of floating-point operations per second.
There are 2 types of multiprocessors.
A disadvantage of Multiprocessor Systems is that all of the above (expensive, require a much larger pool of memory, and more complex operating system).
RISC (Reduced Instruction Set Computing) processor requires more number of registers.
Multiplier pipeline and Adder pipeline are used to calculate an inner product in a vector processor.
The term gigaflops is used to denote billion flops.
Stack-organized architecture is used in Zero Address Instruction.
Asymmetric Multiprocessor system contains a master-slave relationship.
A multiprocessor operating system must take care of Unauthorized data access and data protection.

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Quiz questions on disk storage and RAM, covering topics such as rotational latency and characteristics of RAM memory.