misc: May 2017

Wednesday, 31 May 2017

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Sunday, 28 May 2017

BPO

BPO

Name the components of CPU < Explain USB Port (Universal Serial Bus) Give the specifications of Laser printer Write a note on computer maintenance What are the possible threats to a computer system and how to provide security? Explain the cache memory in detail Name the different searching methods Explain Binary search algorithm What is an array? What is a user defined function?

Hello How may I assist you 1. Name the components of CPU Ans. a) ALU b)PC c) Accumulator d) MAR e) IR f) ID g) MDR Hope this information was useful. Have a nice day

Mobile:
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View	Mobile	Query	Note	Delete
View	Mobile	Query	Note	Delete
View1	Mobile1	Query1	Note1	Delete1

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2.Explain USB Port (Universal Serial Bus). Ans. a. It is a high speed serial bus It is a plug and play interface between computers and add on devices.

3.Give the specifications of Laser printer.

Ans. a. Resolution varies from 600 to 1200 dots per inch.

b. Speed varies from 4 PPM to 24 PPM.

c. Buffer size varies from 4MB to 32 MB

d. Can print color images.

4.Write a note on computer maintenance.

: a. Avoid heat dust and noise

b. Periodic updates and enhancements

c. Installing fire walls and anti virus.

d. In house software maintenance

e. Computer periodic checkup.

5.What are the possible threats to a comput

er system and how to

provide security?

c. Environmental damage

d. Human threats

e. Software threats

f. Unauthorized access

g. Computer viruses

6. Explain the cache memory in detail.

Cache memory is a small and fast memory between CPU and main memory. It is extremely fast

compared to normal memory. Transferring data between main memory and CPU causes delay because

RAM is slower than CPU. Cache memory stores copies of data from most frequently used main memory

locations. When processor needs to read from or write to a location in main memory, it first checks

whether a copy of data is in the cache. If so proc

essor immediately reads or writes to cache.

7. Name the different searching methods.

Ans: a. Linear Search

b. Binary Search

8. Explain Binary search algorithm

Ans: This algorithm is used to search for an elemen

t in a sorted list. The value of the element in the

middle of the list is co

mpared with the value of the element to

be searched for . If the middle

element is larger, the de

sired element has to be in the upper of

the list. If the middle element is

smaller, the de

sired element has to be lowe

r half of the list. The nu

mber of elements to be

searched is reduced

by half in every iteration.

9. What is an array?

An array is a group of

data of the same data type

stored in successive storage

a user defined function?

A user-defined function is a comple

te and independent progr

am unit, which can be

used(or invoked) by the main progr

Mobile:
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Mobile	Query	Note
Mobile1	Query1	Note1