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MCS Notes
Introduction To Computing - Short Questions


Short Questions


Question:

Why PASCAL was designed and what is the problem with PASCAL?

Answer:

Pascal is very good for writing well-structured and readable programs, but it is not as
flexible as the C programming language
C++ embodies powerful object-oriented features, but it is complex and difficult to learn
What changes in the field of computer languages can we expect in the near future


Question:

What are the key requirements of E-commerce Software?

Answer:

E-Commerce Software
Key requirements:
Reliability
Security
Ability to handle 1000’s of transactions, simultaneously


Question:
Write down the pseudo code for the following flow chart.


Answer:

Pseudo code

Flowcharts
Actual code
Pseudo Code
Language that is typically used for writing algorithms
Similar to a programming language, but not as rigid
The method of expression most suitable for a gi

Question:
Write down two positive features of client-side scripting.

Answer:

Reduced server load as it does not have to send messages to the user’s browser about
missing or incorrect data
Reduced network traffic as the form’s data is sent only once instead of many to’s and
fro’s

Question :
List down the Analytical Engine's components name (any two)

Answer :

Google & Netscape,

Question :
Why uploading a web page is important? Describe in 2 – 3 lines.

Answer :

By only uploading webpage we could place our information in order the other can reach up to ready what we load, upload means make available our data or information for the world web browsers

Question:

What is the difference between microprocessors and microcontrollers? Give one example of both.

Answer :

The microprocessor is electronic equipment which can perform several function and also processing of data and information present in a computer, while microcontroller can only perform one function for that its design

Example

Microprocessors _ Pentium 4
Microcontroller _ can be a switch in side the washing machine

Question:

Differentiate uni-Processor OS from Multi-Processor OS.

Answer :

The Multiprocessors is when more than one processor is under operation it can be several or may hundreds of the kind to perform one great operation or calculation, while our PC is a kind of uni-processor


Question:

Why do we call JavaScript an Object-based Language?

Answer :

Java Script is a language by which we are writing our web-pages, this language is designed to work for web pages


Question
What are the types of computer network according to the distance between nodes ?

Answer:


There are two types of networks.
1. LAN (Local Area Network)
2. WAN (Wide Area Network)


Question
What is meant by semantic error ?

Answer:


Occur when a statement executes and has an effect not intended by the programmer and Often times occur only in unusual & infrequent circumstances


Question
List down the names of two array methods available in JavaScript.

Answer:

1. sort( ) [sorts elements in alphabetical order]
2. reverse( ) [Reverses the order of elements]


Question
How can you define a consistent web design? Why is it needed?

Answer:

A consistent good designed website is generated for general public that allows users to attain what they want as quickly as possible without spending much effort.

A consistent good design assists the user in recovering from errors.


Question
How can we include images in a web page using HTML and Java script?

Answer:

Image in HTML
<IMG src=URL, alt=text height=pixels width=pixels align="bottom|middle|top">

Image in Javascript
Images in JavaScript can be manipulated in many ways using the built-in object Image.
Additional properties to HTML are hspace, vspace & lowsrc.
Example: It can be used by many handlers like, onAbort, onLoad & onError

Question
The event handler attribute consists of three parts. Write about each of them.

Answer :

The identifier of the event handler
The equal sign
A string statement enclosed in double or single quotes.


Question
What is a packet in the network environment? What kind of information does it contain?

Answer:

Packet is data chopped up into pieces in a network environment.
These packets contain information about which computer sent the data and where the data is going.
If a packet runs into a problem during its trip, it can attempt to find another route. When all the packets get where they are going, the recipient computer puts them together again.


Question
Suppose we have a big project. Draw hierarchy of the people involved in the project?

Answer:

Please ignore small lines relating Sub Teams to subordinates due to shortage of time. ABCD etc are connected directly to Team Lead 1,2 & 3 accordingly.



Question
How instant messaging works? Write the steps involved in this process.

Answer:

The Instant Messaging services available allow us to maintain a list of people (contacts) that we interact with regularly. We can send instant messages to any of the contacts in our list as long as that contact is online.

Following steps are involved in IM working.

User commences the IM client.
IM client finds the IM server & logs in.
It launches communication info (IP address, etc) to the IM server.
IM server finds user’s contacts & sends him/her the communication info.
IM server also notifies the contacts that the user is online; sends his/her communication info to them.
The user’s & the contact’s IM clients are ready to communicate directly (P2P).
As new contact has come online, IM server informs them about the user being online & vice versa.
Multiple, real-time chat are possible.
When the user logs-off, his/her IM client informs the IM server.
IM server wipes away the temporary file and informs the user’s contact’s about his/her ‘offline’ status.
 
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