B.com UOS Missing Topics

7/31/2019 B.com UOS Missing Topics

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The University of SargodhaCOMPUTER APPLICATION TO BUSINESS

B.Com-1st PAPER 302

Value-added network

A Value-added Network (VAN) is a hosted service offering that acts as an

intermediary between business partners.

VAN is also an acronym for virtual area network.

A value-added network (VAN) is a private network provider (sometimes called a turnkey

communications line) that is hired by a company to facilitate electronic data interchange

(EDI) or provide other network services. Before the arrival of the World Wide Web, some

companies hired value-added networks to move data from their company to other companies.

With the arrival of the World Wide Web, many companies found it more cost-efficient tomove their data over the Internet instead of paying the minimum monthly fees and per-

character charges found in typical VAN contracts. In response, contemporary value-added

network providers now focus on offering EDI translation, encryption, secure e-mail,

management reporting, and other extra services for their customers.

Virtual private network

A virtual private network (VPN) is a network that uses primarily public

telecommunication infrastructure, such as the Internet, to provide remote offices or traveling

users an access to a central organizational network.

VPNs typically require remote users of the network to be authenticated, and often

secure data with encryption technologies to prevent disclosure of private information to

unauthorized parties.

VPNs may serve any network functionality that is found on any network, such as

sharing of data and access to network resources, printers, databases, websites, etc. A VPN

user typically experiences the central network in a manner that is identical to being connected

directly to the central network. VPN technology via the public Internet has replaced the need

to requisition and maintain expensive dedicated leased-line telecommunication circuits once

typical in wide-area network installations.

Compile By: Awais Rehman (MCS Virtual University of Pakistan)TIMES COLLEGE TAUNSA SHARIF

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Virtual private network technology reduces costs because it does not need physical

leased lines to connect remote users to an Intranet.[1]

PBX

Short for private branch exchange, a private telephone n

etwork used within an

enterprise. Users of the PBX share a certain number of outside lines for making telephone

calls external to the PBX.

Most medium-sized and larger companies use a PBX because it's much less expensive

than connecting an external telephone line to every telephone in the organization. In addition,

it's easier to call someone within a PBX because the number you need to dial is typically just 3

or 4 digits.

A PBX reduces cost because the company only pays for the number of lines liable to be

connected at any given time to the outside. If a company has 100 telephones, it's unlikely

everyone will be making an outside call at once. Perhaps only 10% will require an outside line

at any given time. Therefore the company would lease 10 lines from the phone company

rather than 100.


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The University of SargodhaCOMPUTER APPLICATION TO BUSINESS

B.Com-1st PAPER 302

Important Short Question Year 2005 to 2011

YEAR 20051. What is C.U?

2. What do you mean by interpreter?

3. What is microprocessor or CPU?

4. How does data become information?

5. Define Freeze panes in MS-Excel

ANSWER:

Freeze Panes in Excel

It is sometimes difficult to read and understand very large spreadsheets. When

you scroll too far to the right or down, you lose the headings that are located at the top

and down the left side of the worksheet. Without the headings, its hard to keep track

of which column or row of data you are looking at.

To avoid this problem use the freeze panes feature in Microsoft Excel. It allows

you to "freeze" certain areas or panes of the spreadsheet so that they remain visible at

all times when scrolling to the right or down. Keeping headings on the screen makes iteasier to read your data throughout the entire spreadsheet.

6. Important icons of Desktop?

7. Computer Virus?

Answer:

A computer program that is designed to replicate itself by copying itself into

the other programs stored in a computer. It may be benign or have a negative effect,

such as causing a program to operate incorrectly or corrupting a computer's memory.

Or

A computer virus is a computer program that can replicate itself and spreadfrom one computer to another. The term "virus" is also commonly, but erroneously

used, to refer to other types of malware, including but not limited to adware and

spyware programs that do not have a reproductive ability.

Viruses can increase their chances of spreading to other computers by infecting

files on a network file system or a file system that is accessed by other computers.


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8. What is Computer Network?

ANSWER:

A computer network is a group of more computers connected to each

electronically. This means that the computers can "talk" to each other and that every

computer in the network can send information to the others. Usually, this means that

the speed of the connection is fast - faster than a normal connection to the Internet.Some basic types of computer networks include:

A local area network (often called a LAN) connects two or more computers,

and may be called a corporate networkin an office or business setting.

An "internet work", sometimes called a Wide Area Network (because of the

wide distance between networks) connects two or more smaller networks together. The

largest internet work is called the Internet.

9. What is motherboard?

10. Relation between Hardware & Software?

YEAR 2006

11. What is Taskbar?

ANSWER:

The task bar was introduced with Windows 95 and has been part of every

version of Windows since then. It is the bar that spans the bottom of the screen and

contains the Start button on the left side and the system tray on the right. The task bar

also includes the current time on the far right side and can hold shortcuts to programs

directly to the right of the Start button. Most of the task bar, however, contains

shortcuts to open windows. Whenever you open a program or window, it shows up in

the task bar. So if you have Internet Explorer and Microsoft Word open, there will be

at least two items in the middle area of the task bar.

12. What is Web Browser?

13. What is Compiler?

14. Define Interpreter?

15. What is Windows Explorer?

ANSWER:

Windows Explorer is a file manager application that is included with releases

of the Microsoft Windowsoperating system from Windows 95 onwards. It provides a

graphical user interface for accessing the file systems. It is also the component of the

operating system that presents many user interface items on the monitor such as the

taskbar and desktop. The Windows Explorer was first included with Windows 95 It

could be accessed by double-clicking the newMy Computerdesktop icon, or launched

from the newStart Menuthat replaced the earlier Program Manager. There is also a

shortcut key combination: Windows key + E.

16. What is Internet Explorer?

17. Define the term Antivirus?

ANSWER:

Definition: "antivirus" is protective software designed to defend your computer

against malicious software. Malicious software or "malware" includes: viruses,

Trojans, key loggers, hijackers, dialers, and other code that vandalizes or steals your

computer contents. In order to be an effective defense, your antivirus software needs

to run in the background at all times, and should be kept updated so it recognizes new

versions of malicious software. Also Known As: anti-virus, anti virus


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YEAR 200718. What is Laptop Computer?

ANSWER?

A laptop computer is a personal computer for mobile

use. A laptop integrates most of the typical components of a

desktop computer, including a display, a keyboard, a

pointing device (a touchpad, also known as a track pad or

pointing stick) and speakers into a single unit. A laptop is

powered by mains electricity via an AC adapter, and can be

used away from an outlet using a rechargeable battery.

19. What is Home Page of Web site?

ANSWER:

A home page or index page has various related meanings to do with web sites: It is also

usually the first page that the link/site takes you to.

It most often refers to the initial or main web page of a web site, sometimes called the

"front page" (by analogy with newspapers).

The web page or local file that automatically loads when a web browser starts or when

the browser's "home" button is pressed; this is also called a "home page". The user

can specify the URL of the page to be loaded, or alternatively choose e.g. to re-load the

most recent web page browsed.

20. What is Modem?

ANSWER?

A modem (modulator-demodulator) is a device that modulates an analog

carrier signal to encode digital information, and also demodulates such a carrier signal

to decode the transmitted information. The goal is to produce a signal that can be

transmitted easily and decoded to reproduce the original digital data. Modems can be

used over any means of transmitting analog signals, from light emitting diodes to

radio.

21. What is Auto Context Wizard?22. What is ISPs?

ANSWER:

Short for Internet Service Provider, it refers to a company that provides

Internet services, including personal and business access to the Internet. For a

monthly fee, the service provider usually provides a software package, username,

password and access phone number. Equipped with a modem, you can then log on to

the Internet and browse the World Wide Web and USENET, and send and receive e-


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mail. For broadband access you typically receive the broadband modem hardware or

pay a monthly fee for this equipment that is added to your ISP account billing.

23. What is Topologies?

24. What is Search Engine?

25. What is URL?26. What is Non-Impact Printer?

27. What is Optical Mouse?

ANSWER:

An optical mouse is an advanced computer pointing device

that uses a light-emitting diode (LED ), an optical sensor,

and digital signal processing ( DSP ) in place of the

traditional mouse ball and electromechanical transducer.

Movement is detected by sensing changes in reflected light,

rather than by interpreting the motion of a rolling sphere.

The optical mouse takes microscopic snapshots of the

working surface at a rate of more than 1,000 images per

second. If the mouse is moved, the image changes. The tiniest irregularities in the

surface can produce images good enough for the sensor and DSP to generate usable

movement data. The best surfaces reflect but scatter light; an example is a blank sheet

of white drawing paper. Some surfaces do not allow the sensor and DSP to function

properly because the irregularities are too small to be detected. An example of a poor

optical-mousing surface is unfrosted glass.

28. What is Different type of Operating System running now days?

YEAR 200829. Why LCD monitor are better than CRT?

30. What are the functions of Bar Code Scanner?

ANSWER:

A barcode reader (or barcode scanner) is an electronic device

for reading printed barcodes. Like a flatbed scanner, it consists

of a light source, a lens and a light sensor translating optical

impulses into electrical ones. Additionally, nearly all barcode

readers contain decodercircuitry analyzing the barcode's imagedata provided by the sensor and sending the barcode's content

to the scanner's output port.

31. What is Information Technology?

32. What is E-Commerce?

33. Non-Procedural Language?

34. Define BIOS?

ANSWER:

The BIOS software is built into the PC, and is the first code run by a PC when

powered on ('boot firmware'). When the PC starts up, the first job for the BIOS is the

power-on self-test, which initializes and identifies system devices such as the CPU,

RAM, video display card, keyboard and mouse, hard disk drive, optical disc drive andother hardware.BIOS software is stored on a non-volatile ROM chip on the

motherboard. It is specifically designed to work with each particular model of

computer, interfacing with various devices that make up the complementary chipset of

the system. In modern computer systems the BIOS chip's contents can be rewritten

without removing it from the motherboard, allowing BIOS software to be upgraded in

place.

35. What means of interface of a Computer?

36. What is Register?


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37. What is Advantage of Table in MS-Word?

38. Why we use custom animation option in MS-PowerPoint?

ANSWER:

YEAR 2009

39. What is RAM?

40. What is CPU?

41. What is tool bar?

42. What is CD Driver?

ANSWER:

A CD-ROM an acronym of "Compact Disc Read-only memory") is a pre-

pressedcompact disc that containsdata accessible to, but not writable by, a computer

for data storage and music playbacks-ROMs are popularly used to distribute

computer software, including video games and multimedia applications, though any

data can be stored (up to the capacity limit of a disc). Some CDs hold both computer

data and audio with the latter capable of being played on a CD player, while data

(such as software or digital video) is only usable on a computer (such as ISO 9660

format PC CD-ROMs).

43. What is DOS?

44. What is web Browser?

45. What is Domain Name?

YEAR 2010

46. What is Web Server?

Emails you did not ask for that were

sent in bulk

From senders you do not know are suspicious of being spam.

Newsletters you did sign up for, an email from a college friend and messages

from people trying to contact you personally are, of course, not spam. A newsletter

somebody signed you up for to annoy you is not spam but a different kind of email

abuse. An email sent to you in bulk by an unknown sender that you do in fact welcome

and find useful may not be spam either.

Every email you asked for is not spam but not every email you did not ask for is

spam. For practical means, there is no point in sophistic examination of all the reasons

that can, could or must not justify the junk status of any email (if you enjoy the

sophistic exercise, do go ahead.

47. What is MAN?

48. What is Abacus?

49. What are 3GL & 4 GL?


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50. What is Slide Sorter View?

ANSWER:

Slide sorter view in PowerPoint or

Open Office Impress is a window that displays

thumbnail versions of all your slides, arranged

in horizontal rows. This view is useful to makeglobal changes to several slides at one time.

Rearranging or deleting slides is easy to do in

Slide Sorter view.

Examples:

In order to apply the same transition to

all of her PowerPoint slides at one time, Mary

switched her presentation to Slide Sorter view.

51. What is Formula Bar?

ANSWER:

A toolbar at the top of the Microsoft Excel spreadsheetwind

ow that you can

use to enter or copy an existingformula in to cells or charts. It is labeled with function

symbol (fx). By clicking the Formula Bar, or when you type an equal (=) symbol in a

cell, the Formula Bar will activate.

52. What is SIMM

SIMM Acronym for single in-line memory

module, a small circuit board that can hold a

group of memory chips. Typically, SIMMs holds

up to eight (on Macintoshes) or nine (on PCs)

RAM chips. On PCs, the ninth chip is often used

for parity error checking. Unlike memory chips,

SIMMs is measured in bytes rather than bits.

SIMMs is easier to install than individual

memory chips.

The bus from a SIMM to the actual

memory chips is 32 bits wide. A newer

technology, called dual in-line memory module

(DIMM), provides a 64-bit bus. For modern

Pentium microprocessors that have a 64-bit bus,

you must use either DIMMs orpairs of SIMMs.

What is Fill Handler?

ANSWER:

In Microsoft Excel, fill handle is a command that lets you fill data in to your

spreadsheet cells that is based on a pattern you establish. For example, you can use

this command to continue a series of numbers, text combinations, or dates.

YEAR 201154. What is EXTRANET?

55. WHAT IS GUI?

56. What is Embedded Software or O.S?

57. What is Information?


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The University of SargodhaCOMPUTERAPPLICATION TO BUSINESS

B.Com-1st PAPER 302

Important Long Question Year 2005 to 2011

1. Define Computer, Characteristics of Computer?

2. Generation of Computer?

3. Type of Computer?

4. Classification of Computer?

5. Input, Output device any five?

6. Difference between CRT and LCD Monitor?

7. CPU, System Clock?

8. Memory and Kinds of Memory?

9. Storage Device?

10. Difference between Software and Hardware?

11. Function of operating System?

12. Programming Language?

13. Language Processor/Translator?

14. Computer Network?

15. Data processing and Level of Data Processing?

16. Data processing Life Cycle?

17. Windows XP and its features?

18. Internet and its merits & Demerits?

19. Network Topologies?

20. MS-Word and its features?

21. Web Browser and Web Server?


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