Computer Awareness For IBPS PO/CLERK, and Other PSU's
Dear Friendzzzz... Karo teyari Computers ki 😃 ...🍻🍻🍻🍻🍻
make sure to keep Notifications On for this Group ..
SABSE PEHLE MEIN HI FOLLOW KARUNGA..:D
>>> Important Keyboard Global shortcuts
1. Alt + F : File menu options
2. Alt + E : Edit menu option
3. Alt + V : View menu option
4. F1 : Help Window
5. Ctrl + A : Select All
6. Ctrl + X : Cut
7. Ctrl + C : Copy
8. Ctrl + V : Paste
9. Shift +Arrow keys : Make selection
10. Ctrl +Tab : Navigation for browser tabs
11. Alt+Tab : Switch between minimized applications
12. Ctrl +O : Open
13. Ctrl +W : close current document or browser tab
14. Alt+F4: Close Application
15. F5 : Refresh browser
16. Ctrl +P : Print
17. Ctrl +F2 :Print preview (MS Office)
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>>> GENERATIONS OF COMPUTER
1. First Generation (1946-1959) :
In first generation vaccum tubes were used for circuitry and magnetic drums for memory. They used the "Stored Program Concept" and they were very large in size taking up the entire rooms and generating a lot of heat. Machine languages were used for giving the instructions. Examples: ENIAC (Electronic Numerical Integrator And Calculator) was the first electronic computer developed. EDVAC: Electronic Discrete Variable Automatic Computer EDSAC: Electronic Delay Storage Automatic Computer UNIVAC-I: The Universal Automatic Computer
2. Second Generation (1959-1965) :
This generation using the transistor were cheaper, consumed less power, more compact in size, more reliable and faster than the first generation machines made of vaccum tubes. In this generation, magnetic cores were used as primary memory and magnetic tape and magnetic disks as secondary storage devices. In this generation assembly language and high level programming language like FORTRAN, COBOL were used. There were Batch processing and Multiprogramming Operating system used. Examples: IBM 1620,IBM 7094, CDC 1604, CDC 3600, UNIVAC 1108
3. Third Generation (1965-1971) :
The development of the integrated circuit(I.C) was the hallmark of the third generation of computers. A single I.C has many transistors, resistors and capacitors along with the associated circuitry. The I.C was invented by Jack Kilby. This development made computers smaller in size, reliable and efficient. In this generation Remote processing, Time-sharing, Real-time, Multi-programming Operating System were used. High level language (FORTRAN-II TO IV, COBOL, PASCAL PL/1, BASIC, ALGOL-68 etc.) were used during this generation. Examples: IBM-360 series, Honeywell-6000 series, PDP(Personal Data Processor)
4. Fourth Generation (1971-1980) :
Medium scale integrated circuits yielded to Large Scale Integration (LSI) and Very Large Scale Integration (VLSI) circuits. It led to the advent of microprocessor (CPU on a single chip) and marked the beginning of the fourth generation computers. Semi conductor memories replaced magnetic core memories. The cost of computer came down so rapidly. The accessing and processing speeds and increased memory capacity helped in development of much more powerful operating systems. Examples: DEC 10, STAR 1000, PDP 11, CRAY-1(Super Computer), CRAY-X-MP(Super Computer)
5. Fifth Generation (1980-Present) :
In the fifth generation, the VLSI technology became ULSI (Ultra Large Scale Integration) technology, resulting in the production of microprocessor chips having ten million electronic components. This generation is based on parallel processing hardware and AI (Artificial Intelligence) software. AI is an emerging branch in computer science, which interprets means and method of making computers think like human beings. All the Higher level languages like C and C++, Java, .Net etc. are used in this generation. Examples: Desktop, Laptop, NoteBook, UltraBook, ChromeBook
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>>> BASIC COMPONENTS OF COMPUTER
A network has 5 basic components.
They are :-👍👍👍👍👍👍
clients .
servers .
channels .
interface devices.
operating systems.
CLIENTS :-- Client is the computer used by the users of the network to access the servers and shared resources (such as hard disks and printers). So, a personal computer is a client.
SERVERS :-- Servers or Host computers are are powerful computers that store data or applications and connect to resources that are shared by the users of a network.
CHANNELS :-- The technical name of channels is network circuit. It is the pathway over which information travels between the different computers (clients and servers) that comprise the network
.INTERFACE DEVICES :-- The devices that connect clients and servers (and sometimes other networks) to the channel are called interface devices. The common examples are modems and network interface cards
. OPERATING SYSTEMS :-- This is the Network Software. It serves purpose that the operating system serves in a stand-alone computer.
Google is -???????????
What are some of the benefits of using a firewall for your LAN?
- Increased access to Instant Messaging
- Greater security to your LAN
- Both 2 and 3
- Stricter access control to critical resources
0 voters
Which of the following are true about firewalls?
A packet filtering firewall operates at which of the following OSI layer?
Which of the following systems run an application layer firewall using proxy software?
Which of the following use routes with packet filtering rules to allow or deny access based on source address, destination address, or port number?
Which of the following devices discriminates between multicast and unicast packets?
yaar kuch short cut of ms office bhi post kiya karo for IT students ...
humhe basic me hi problem hoti hai .
Computer program which controls the operations of computer is called
1. A flaw in a program that causes it to produce incorrect or inappropriate results is called a_?
(A) Bug
(B) Byte
(C) Attribute
(D) Unit problem
(E) None of these
Answer : A
2. A Website address is a unique name identifies a specific_on the Web?
(A) Web browser
(B) PDA
(C) Website
(D) Link
(E) None of these
Answer : C
3. To make the number pad act as directional arrows, you press the_key?
(A) Numlock
(B) Caps lock
(C) Arrow lock
(D) Shift
(E) None of these
Answer : A
4- When creating a word-processed document, this step involves the user changing how words on the page appear, both on the screen and in printed form?
(A) Editing text
(B) Inserting tables and indexes
(C) Formatting text
(D) Proofing documents
(E) None of these
Answer : C
5- Storage that retains its data after the power is turned off is referred to as_?
(A) volatile storage
(B) non-volatile storage
(C)sequential storage
(D) direct storage
(E) None of these
Answer : B
6- Which of the following is an example of connectivity?
(A) Internet
(B) Floppy disk
(C) Power cord
(D)Data
(E) None of these
Answer : A
7.______is the process of finding errors in software code?
(A) Compiling
(B) Testing
(C) Running
(D)Debugging
(E) None of these
Answer : A
8. The _ _ of software contains lists of commands and options.
(A) Title bar
(B) Menu bar
(C) Formula bar
(D)Toolbar
(E) None of these
Answer : B
9- Quicktime, RealOne, and Shockwave are among the most popular Web browser_?
(A) Plug-ins
(B) Cookies
(C) Cascading style sheets
(D) Search engines
(E) Security tools
Answer : A
10- The_____key will launch the Start button?
(A) esc
(B) shift
(C) windows
(D) shortcut
(E)None of these.
Answer : C
11. To move to the beginning of a line of text, a user should press the____key?
(A) home
B) a
(C) page up
(D) enter
(E) None of these
Answer : A
12. When sending an e-mail, the_line describes the contents of the message?
(A) to
(B) subject
(C) contents
(D) CC
(E) None of these
Answer : B
13. When you reboot your system, the computer takes instructions to start from the_?
(A) DRAM
(B) SDRAM
(C) DDR
(D) ROM
(E) None of these
Answer : D
14. The____tells the computer how to use its components?
(A) utility
(B) network
(C) operating system
(D) application program
(E) None of these
Answer : C
15- _ is when the more power-hungry components, such as the monitor and the hard drive, are put in idle?
(A) Hibernation
(B) Power down
(C) Standby mode
(D) The shutdown procedure
(E) None of these
Answer : A
16- A collection of programs that controls how your computer system runs and processes information is called ?
(A) Operating system
(B) Computer
(C) Office
(D) Compiler
(E) Interpreter
Answer : A
17. Which of the following refers to a small, single-site network?
(A) LAN
(B) DSL
(C) RAM
(D) USB
(E)CPU
Answer : A
18- A set-of instructions telling the computer what to do is called_?
(A) Mentor
(B) Instructor
(C) Compiler
(D) Program
(E) Debugger
Answer : D
19. The memory sizes in mainframe computers and advanced technology micro computer are expressed as ?
(A) Bytes
(B) Kilo-bytes
(C) Bits
(D) Megabytes
(E) None of these
Answer : D
20. The function of Key F4 is ___?
(A) Delete
(B) Repeat last function
(C) Refresh
(D) Copy
(E) None of these
Answer : B
21. Viruses, Trojan horses and worms are_?
(A) Able to harm computer system
(B) Unable to detect if affected on computer
(C) Use-friendly applications
(D) Harmless applications resident on computer
(E) None of these
Answer : A...........
@Guru_Hoja_Shuru @sneh21 @deepikaSeven @amarsaur @nikskrish
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1. Programs from the same developer , sold bundled together , that provide better integration and share common features , toolbars and menus
are known as ....
(A) software suites
(B) integrated software packages
(C) software processing packages
(D) personal information managers
(E) none of these
Ans : (A)
2. A data warehouse is which of the following ?
(A) Can be updated by the end users
(B) Contains numerous naming conventions and formats
(C) Organized around important subject areas
(D) Contains only current data
(E) None of these
Ans : (C)
3. ______________ servers store and manages files for network users.
(A) Authentication
(B) Main
(C) Web
(D) File
(E) None of these
Ans : (D)
4. All of the following are examples of real security and privacy risks
Except _____
(A) hackers
(B) spam
(C) viruses
(D) identify theft
(E) None of these
Ans : (B)
5. ___________ terminals (formerly known as cash registers) are often
connected to complex inventory and sales computer systems .
(A) Data
(B) Sales
(C) Query
(D) (Point-of-sale (POS)
(E) None of these
Ans : (B)
6. The OSI model is divided into _______ processes called layers.
(A) five
(B) six
(C) seven
(D) eight
(E) None of these
Ans : (C)
7. System software is the set of programs that enables your computer's
hardware devices and ______ software to work together.
(A) management
(B) processing
(C) utility
(D) application
(E) None of these
Ans : (D)
8. ________ are specially designed computer chips reside inside other
devices, such as your car or your electronic thermostat.
(A) Servers
(B) Embedded computers
(C) Robotic computers
(D) Mainframes
(E) None of these
Ans : (B)
9. The following are all computing devices , except.........
(A) notebook computers
(B) cellular telephones
(C) digital scanners
(D) personal digital assistants
(E) None of these
Ans : (C)
10. in a ring topology , the the computer in possession of the ______ can
trasmit data
(A) packet
(B) data
(C) access method
(D) token
(E) None of these
Ans : (D)
11. This part of operating system manages the essential peripherals, such
as the keyboard, screen , disk drives, and parallel and serial ports ____
(A) basic input/output system
(B) secondary input/output system
(C) peripheral input/output system
(D) marginal input/output system
(E) None of these
Ans : (A)
12. ________ Viruses are often transmitted by a floppy disk left in the
floppy drive
(A) Trojan horse
(B) Boot sector
(C) Script
(D) Logic bomb
(E) None of these
Ans : (B)
13. ________ controls the way in which the computer system functions and
provides a meAns : by which users can interact with the computer
(A) The platform
(B) Application software
(C) Operating system
(D) The motherboard
(E) None of these
Ans : (C)
14. Servers are computers that provide resources to other computers
connected to a ___________
(A) mainframe
(B) network
(C) supercomputer
(D) client
(E) None of these
Ans : (B)
15. A goal of data mining includes which of the following?
(A) To explain some observed event or condition
(B) To confirm that data exists
(C) To analyze data for expected relationships
(D) To create a new data warehouse
(E) None of these
Ans : (A)
16. URL stands for ........
(A) Universal Research List
(B) Universal Resource List
(C) Uniform Resource Locator
(D) Uniform Research Locator
(E) None of these
Ans : (C)
17. A database management system (DBMS) is a ............
(A) hardware system used to create , maintain and provide controlled
access to a database
(B) hardware system used to create, maintain, and provide uncontrolled
access to a database.
(C) software system used to create, maintain, and provide uncontrolled
access to a database.
(D) software system used to create, maintain, and provide controlled
access to a database.
(E) None of these
Ans : (D)
18. Which of the following is NOT a goal of transaction processing system
?
(A) Capture , process and store transactions
(B) Produce a variety of documents related to routine business activities
(C) Reduce manual effort associated with processing business transactions
(D) Produce standard reports used for management decision making
(E) None of these
Ans : ()
19. A Proxy server is used for which of the following?
(A) To provide security against unauthorized users
(B) To process client requests for web pages
(C) To process client requests for database access
(D) To provide TCP/IP
(E) None of these
Ans : (B)
20. When data changes in multiple lists and all lists are not updated,
this causes:
(A) data redundancy
(B) information overload
(C) duplicate data
(D) data inconsistency
(E) None of these
Ans : (D)
21. _____________ are words that a programming language has set aside for
its own use.
(A) Control worlds
(B) Reserved words
(C) Control structures
(D) Reserved keys
(E) None of these
Ans : (B)
22. What is the primary difference between a virus and a worm?
(A) A worm has the ability to self-propagate from an infected user's
computer to other computers
(B) A worm is usually written by a cracker: Script bunnies do not have
the skills to develop a worm program
(C) A virus is very harmful to the computers it infects : a worm is not a
serious a problem
(D) Anti-virus software is effective in fighting viruses but not worms
(E) None of these
Ans : ()
23. ______ describe what is database fields.
(A) Structures
(B) Field markers
(C) Field definition
(D) Field names
(E) None of these
Ans : (D)
24. You must install a (n) ____________ on a network if you want to share
a broadband Internet connection.
(A) router
(B) modem
(C) node
(D) cable
(E) None of these
Ans : (A)
25. A goal of normalization is to __________
(A) minimize the number of relationships
(B) minimize the number of entities
(C) minimize the number of tables
(D) minimize the number of redundancy
(E) None of these
Ans : (D)
26. Granting an outside organization access to internet web pages is
often implemented using a (n) ____
(A) extranet
(B) intranet
(C) internet
(D) hacker
(E) None of these
Ans : (A)
27. Which term identifies a specific computer on the web and the main
page of the entire site
(A) URL
(B) Web site address
(C) Hyperlink
(D) Domain name
(E) None of these
Ans : (A)
28. The code that relational database management systems use to perform
their database task is referred to as .....
(A) QBE
(B) SQL
(C) OLAP
(D) Sequel Server
(E) None of these
Ans : (B)
29. Chip is a common nickname for a (n):
(A) transistor
(B) resistor
(C) integrated circuit
(D) semiconductor
(E) None of these
Ans : (C)
30. The purpose of the primary key in a database is to:
(A) unlock the database
(B) provide a map of the data
(C) uniquely identify a record
(D) establish constraints on database operations.
(E) None of these
Ans : (B)
32. The design of the network is called the network:
(A) architecture
(B) server
(C) transmission
(D) type
(E) None of these
Ans : (A)
33. The most frequently used instructions of a computer program are
likely to be fetched from:
(A) the hard disk
(B) cache memory
(C) RAM
(D) registers
(E) None of these
Ans : (B)
34. The ____________ contains data descriptions and defines the name,
data type, and length of each field in the database.
(A) data dictionary
(B) data table
(C) data record
(D) data field
(E) None of these
Ans : (A)
35. Personal logs or journal entries posted on the Web are known as:
(A) listservs
(B) Webcasts
(C) blogs
(D) subject directories
(E) None of these
Ans : (C)
36. A(n) _______ uses pictures (called icons) and menus displayed on the
screen to send commands to the computer system.
(A) command - based user interface
(B) GUI
(C) system utility
(D) API
(E) None of these
Ans : (B)
38. Which of the following is NOT a type of broadband Internet
connection?
(A) Cable
(B) DSL
(C) Dial-up
(D) Satellite
(E) None of these
Ans : (C)
39. Software, such as viruses, worms and Trojan horses, that has a
malicious intent, is known as:
(A) spyware
(B) adware
(C) spam
(D) malware
(E) None of these
Ans : (D)
40. Making a field ______ meAns : that it cannot be left blank.
(A) numeric
(B) required
(C) calculated
(D) validated
(E) None of these
Ans : (B)
41. _________ is the process of finding errors in software code.
(A) Debugging
(B) Compiling
(C) Testing
(D) Running
(E) None pf these
Ans : ()
42. ____________ are viruses that are triggered by the passage of time or
on a certain date.
(A) Boot-sector viruses
(B) Macro viruses
(C) Time bombs
(D) Worms
(E) None of these
Ans : (C)
43. Linux is a (n) ____________ operating system.
(A) open-source
(B) Microsoft
(C) Windows
(D) Mac
(E) None of these
Ans : (A)
44. What is a backup?
(A) Restoring the information backup
(B) An exact copy of a system's information
(C) The ability to get a system up and running in the event of a system
crash or failure
(D) All of these
(E) None of these
Ans : (D)
45. Which of the following places the common data elements in order from
smallest to largest
(A) character, file, record, field, database
(B) character, record, field, database, file
(C) character, field, record, file, database
(D) Bit, byte, character, record, field, file, database,
(E) None of these
Ans : (C)
46. The internet is ......
(A) a large network of networks
(B) an internal communication system for a business
(C) a communication system for the Indian government
(D) All of these
(E) None of these
Ans : (D)
47. ____________ are lists of commands that appear on the screen.
(A) GUIs
(B) Icons
(C) Menus
(D) Windows
(E) None of these
Ans : (C)
48. Which of the following statements is FALSE concerning file names?
(A) Files may share the same name or the same extension but not both
(B) Every file in the same folder must have a unique name
(C) File extension is another name for file type
(D) The file extension comes before the dot (.) followed by the file name
(E) None of these
Ans : (D)
49. Verification of a login name and password is known as:
(A) configuration
(B) accessibility
(C) authentication
(D) logging in
(E) None of these
Ans : (C)
50. Which of the following would most likely NOT be a symptom of a virus?
(A) Existing program files and icons disappear.
(B) The CD-ROM stops functioning.
(C) The Web browser opens to an unusual home page.
(D) Odd messages or images are displayed on the screen.
(E) None of these
Ans : (B) .......👍👍👍👍
@deepikaSeven @amarsaur @Guru_Hoja_Shuru @nikskrish @sneh21 .....
plz check from ur End also..
ISS Thread mein bhi sabh so gaye kya...... 😞 no comp updates.... 😞
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SCO 51 - 54, BANK SQUARE, SECTOR 17-B, CHANDIGARH-160017. (Recruitment of Assistant Manager & Information Technology Officer) The Punjab State Cooperative Agricultural Development Bank Limited invites on-line applications on the prescribed form for the posts of Assistant Manager and...
Using the Internet or Broadband may become costlier up to 30% as the Department of Telecom changed its rules of telecom licences agreement bringing revenue from Internet or Broadband services under its cess net.
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