Monday, 11 January 2016


Computer Knowledge Notes for IBPS PO/Officer/Clerk Exam 

Dear experts. Computer Knowledge for IBPS PO/Officer/IBPS Clerk Exam, IBPS SO Specialist Officer Exam, SBI Computer Knowledge here we are presenting some topic analysis and expected study material for IBPS Bank Exam.

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Every field today is automated or computerized; no work can be completed in an organization without the use of computers or computing process. The computer knowledge is a very crucial section of Common Written Examination in which one can easily score high marks by simple tricks and tips. The questions related to computer knowledge are very basic terms, in which you have to answer the commonly used abbreviations, questions related to functionality of computer systems. The questions in IBPS for computer will be asked for twenty marks. For specialist officers or IT officers in bank, a degree related to computer education is asked.

The banking industry has moved to automation of transactions, processes, and work load. Therefore it is necessary to know about networking, internet handling, office tools and database. The technical aspects of computer knowledge should be known.

Requirement of Computer Literacy Certification:
Since the banks have online transactions and inter-communication processes, it is a necessity to have a certified course experience for knowledge of computers. A candidate should have degree/ course certificate from a recognized institute. The requirements are specified for each of the post accordingly:

P.O. / Management Trainee: A candidate should have valid certificate from a recognized university or have studied Computers as a part of curriculum. The requested certificate should be taken as a part of vocational skill course. There are courses of 3-4 months that presents the requisite knowledge for the IBPS exams.

For SPECIALIST OFFICERS (I.T.): The candidates applying for specialist post (I.T.) a candidate should have studied a four year graduate or a post graduate engineering courses in Computer Science or related fields. A graduate who has passed DOEACC ‘B’ level can also apply for this post in IBPS. No extra requirements are needed for clearing the computer proficiency in CWE.
The syllabus for CWE CLERK-V is very simplified as compared to other official posts recruited through IBPS. Here is a brief idea about what is asked in computer proficiency for CWE.

Antivirus: Antivirus is a software application that is used to protect a computer system against lethal viruses, bugs, and automated scripts that disrupt the normal working of computers. The antiviruses use could protect a system from threats and keep it working safely for longer duration. The different types of antiviruses are built to cater the need of keeping safe computer systems.

Basics of computers: The basic computer knowledge is tested in this section. The topics that form questions are basic parts of computer, use of computers, input and output devices, browsers, applications etc. Which one was the first computer, supercomputers, commercial computers, programming languages, first network, keyboards etc.

Binary Number system: The use of binary number format common to computer systems can be asked from this section. Binary numbers are the basic blocks on which computers work, therefore, basic conversions from one unit to another should also be known to candidates.

Components of computers: The different parts of computers like monitors, Central Processing Unit (CPU), Arithmetical and Logical Unit (ALU), Motherboards, Keyboards, mouse, printer, scanner, memory, and these parts should be distinctly known by students for computer proficiency. Different questions are formed on the basis of components of computers.

Database: The database in computers is an important context to handle data related to different files, formats. The database handles all the queries related to data, create and manipulate different sets if data. The database security, transactions associated to it, commands for assessing it, access grants by database administrator. 

Email and Internet: The basics of sending and receiving emails, navigating internet and utilities associated to it are asked in this section. Any candidate opting for IBPS, should know simple email usage, types of security related to email and internet, basic email etiquettes. The knowledge about IPv4 and IPv6 networks, role of HTTP, FTP, MIME, POP, TCP/IP protocols, is also must.

Famous founders: The founders of computers and related technologies should be known by one and all. The famous founders of computers, programming languages, famous applications, browser, search engines, emails, wireless and wired networking, mobile phones, keyboard, operating systems, mouse, USB etc. should be on tips of students.

File Extensions: The file extensions of common documents, audio files, text files, graphics, video files, and animations can be asked in IBPS’s papers. The file formats denotes the type of file and form multiple choice questions. Listing the file formats and remembering them according to the type and usage will be beneficial.

Firewalls: The firewalls are network security systems to protect, monitor, or prevent use of network from unauthorized users. It also monitors the incoming and outgoing traffic based on some specified rules of a system. Firewalls can be implemented on hardware or and acts as a protective server for resources of a computer network.

Generations of computers: The history of computers and technology associated with each of the computer generation is to be studied. The type of technology that initiated formulation of magnetic tapes and discs, batch processing, chips, microprocessor, etc. should be known of. The past and future both depend on each of the technological advancements made over years in computers.

Hardware: The hardware is any physical part of a computer that exists. The knowledge of hardware is necessary for using computers which includes processor, RAM, ROM, disk drives, modems, motherboards, keyboards, mouse, charger, printer etc. The knowledge of computer parts, latest release of processors, graphics card, memory slots, should be properly understood.

Networks: The different types of networks like LAN, WAN, MAN, internet, intranet, etc. their differences, use of a network in a particular situation should be known by candidates preparing for computer literacy paper. The different components of network like switches, routers, gateways, VPN’s, private networks are also important topics. The different topologies used to implement a network like bus, ring, star, hybrid, and mesh must also be studied.

Office Tools: The usage of Microsoft word, Microsoft PowerPoint, spreadsheets, pie charts, should be known. Common short cut keys for using office tools, basic editing and usage skills should be known for attempting questions of computer literacy paper.

Shortcuts: The shortcut keys for accessing systems, browsers, new files, exiting a system, files, media files etc. should be known. What sequences denote which operations, what sequences should be used to execute a task,  shortcut keys for file, running, compiling, etc. comes easily with using computers.

Software: The software is the application part that is used to run an application on computer. This topic involves different operating systems like Windows, Linux, etc., file system hierarchy, indexing in computers, tools for computers, antiviruses, paint, web editors, frameworks, etc. The software used in computers also includes such applications which are used to develop graphics, audios, videos, etc.

Security: The basic security related terminologies, security threats, difference between hackers and crackers, types of security measures, prevention and detection method of security, and principles of security should be studied for understanding computer networks.
A look on previous year papers can be read and found out about the type of questions related to computer awareness.

Computer Knowledge Notes for IBPS PO/Officer/Clerk Exam

Computer Devices & their Inventors

Key board— Herman Hollerith first keypunch devices in 1930’s
Transistor— John Bardeen, Walter Brattain & Wiliam Shockley ( 1947-48)
Integrated Circuit— Jack Kilby & Robert Noyce( 1958)
Trackball— Tom Cranston and Fred Longstaff (1952)
Computer Mouse — Douglas Engelbart (1964)
Microprocessor – Intel 4004 Computer Microprocessor— Faggin, Hoff & Mazor(1971)
Floppy Disk— Alan Shugart &IBM
RAM— An Wang at Harvard University’s Computation Lab and Jay Forrester at MIT.1951
Laser printer— Gary Starkweather at XEROX in 1969.
Hard Disk— The IBM Model 350 Disk File by IBM in 1956 (was the first hard disk drive and was part of the IBM 305 RAMAC computer that IBM started delivering in)
First PC— The IBM 5100 Portable Computer by IBM
First laptop— Grid Compass 1100 (called the GRiD) and was designed in 1979 by a British industrial designer, Bill Moggridge

Some of commonly used IT Related abbreviations with Full Form

here is some important abbreviations with full name

Network Related

LAN: Local Area Network
WAN: Wide area Network
MAN: Metropolitan Area Network
WLAN: Wireless Local Area Network
SMTP: Simple Mail Transfer Protocol
HTTP: Hyper text Transfer Protocol
TCP/IP: Transmission Control Protocol/Internet Protocol
IP: Internet Protocol
DHCP: Dynamic Host Configuration Protocol
DNS: Domain Name System
POP: Post Office Protocol
HTML: Hyper Text markup Language
URL: Universal Resource Locator
PING: Packet Internetwork Grouper
FTP: File Transfer Protocol
ICMP: Internet Computer message Protocol
WWW: World Wide Web

Computer Related

BIOS: Basic Input Output System
SCSI: Small Computer System Interface
FAT : File allocation Table
NTFS: New Technology File system
DVD: Digital Versatile Disc
RAM: Random access memory
USB: Universal Serial Bus
DVD: Digital Video Disk or Digital Versatile Disc

File Format/Extension
PNP: Plug And Paly
PDF: portable Document Format
Doc: Document File
ppt: Power Point Presentation
dll: Dynamic Link Library
JPEG or JPG: Joint Photographic Experts Group
GIF: Graphics Interchange Format
MPEG: Moving Picture Experts Group

Some Others

SQL - Structured Query Language
AJAX – Asynchronous JavaScript and XML
ASCII – American Standard Code for Information Interchange
DTP - Desk-Top Publishing
CCTV - Closed Circuit Television
OOPS - Object-Oriented Programming System
SIM - Subscriber Identity Module
GPRS - General Packet Radio Service
GSM - Global System for Mobile Communications
FAX  - Facsimile
LCD - Liquid Crystal Display
LED - Light-Emitting Diode
GPS - Global Positioning System
CGI - Common Gateway Interface
ITES - Information Technology Enabled Services
OMR - Optical Mark Recognition
CRM - Customer Relationship Management
ERP - Enterprise Resource Planning
MIS - Management Information Systems

HTML: Hyper Text markup Lanuage 

Some Common HTTP Error

Here is some HTTP Error and its meaning, these are common errors messages.
Error 404 - A 404 error comes when you try to access a resource/webpages that does not exist, this can be because
·       The link is broken
·       The Website/URL is mistyped
·       The item/Webpage has been moved/deleted
Error 400 - Bad Request
This error comes  when your web browser accessed it incorrectly or that the request was corrupted.

Error 401 - Unauthorized Request
This error comes  when try to access a restricted web page without the authorization.

Error 403 - Forbidden

A forbidden comes while trying to access a (forbidden) directory on a website.
Error 500 - Internal Server Error
This error comes when a web server encounters an internal error such as the web server could be overloaded and unable to handle requests properly
Error 501 - Not Implemented
Error 502 - Bad Gateway
Error 503 - Service Unavailable
Error 504 - Gateway Time-Out

Important Computer Extensions

Dear Readers,
Here is an interesting and important topic for the candidates which can appear in computer awareness section or there are also chances to get these questions in general knowledge part. The topic is File Name Extensions.

Text Files
.logLog File
.wpdWordPerfect Document
.odt:  OpenDocument Text Document
.pages:  Pages Document
.doc:  Microsoft Word Document
.docx:  Microsoft Word Open XML Document
.tex:  LaTeX Source Document
.wps:  Microsoft Works Word Processor Document
.msg:  Outlook Mail Message
.rtfRich:  Text Format File
.txtPlain:  Text File
Data Files
.vcf:  vCard File
.dat:  Data File
.pptx:  PowerPoint Open XML Presentation
.sdf:  Standard Data File
.tar:  Consolidated Unix File Archive
.csv:  Comma Seperated Values File
.xml:  XML File
.pps:  PowerPoint Slide Show
.ppt:  PowerPoint Presentation
Audio Files
.aif:  Audio Interchange File Format
.mpa:  MPEG-2 Audio File
.ra:  Real Audio File
.iff:  Interchange File Format
.wav:  WAVE Audio File
.wma:  Windows Media Audio File
.mp3:  MP3 Audio File
Video Files
.avi:  Audio Video Interleave File
.3gp3:  GPP Multimedia File
.flv:  Flash Video File
.mpg:  MPEG Video File
.vob:  DVD Video Object File
.mp4:  MPEG-4 Video File
.3g:  23GPP2 Multimedia File
.m4:  viTunes Video File
.wmv:  Windows Media Video File

Computer - Some Short-Cut Keys

Hello Readers,

In view of the upcoming IBPS Clerk 2014, here we are providing you all "Computer - Some Short-Cut Keys". Seeing the trend of the IBPS Clerk Exam Pattern till now, 3-4 questions can be expected in the future too. So, please practise well!!

Some Computer Knowledge basic Keys Common Tasks

  • Ctrl + Shift + Spacebar - Create a non breaking space
  • Ctrl + B - Make letters bold
  • Ctrl + I - Make letters italic
  • Ctrl + U - Make letters underline
  • Ctrl + Shift+ < - Decrease font size one value
  • Ctrl + Shift + > - Increase the font size one value
  • Ctrl + [ - Increase the font size by 1 point
  • Ctrl + ] - Decrease the font size by 1 point
  • Ctrl + Spacebar - Remove paragraph or character formatting.
  • Ctrl + C - Copy the selected text or object
  • Ctrl + X - Cut the selected text or object
  • Ctrl + V - Paste text or an object
  • Ctrl + Alt + V - Paste special
  • Ctrl + Shift + V - Paste formatting only
  • Ctrl + Z - Undo the last action
  • Ctrl + Y - Redo the last action

Control - Keys + Function Keys

  • Ctrl+F2 - Choose the print preview command (Microsoft office Button)
  • Ctrl+F3 - Cut on the spike
  • Ctrl+F4 - Close the window
  • Ctrl+F6 - Go to the next window
  • Ctrl+F9 - Insert an empty field
  • Ctrl+F10 - Maximise the document window
  • Ctrl+F11 - Lock a field
  • Ctrl+F12 - Choose the Open command (Microsoft Office Button)
Function Keys

  • Ctrl+F2 - Choose the print preview command (Microsoft office Button)
  • Ctrl+F3 - Cut on the spike
  • Ctrl+F4 - Close the window
  • Ctrl+F6 - Go to the next window
  • Ctrl+F9 - Insert an empty field
  • Ctrl+F10 - Maximise the document window
  • Ctrl+F11 - Lock a field
  • Ctrl+F12 - Choose the Open command (Microsoft Office Button)
  • Ctrl+F2 - Choose the print preview command (Microsoft office Button)
  • Ctrl+F3 - Cut on the spike
  • Ctrl+F4 - Close the window

Shortcut Keys of MS-Excel

  • F2 - Edit the selected cell
  • F5 - Go to a  specific cell
  • F7 - Spell check selected text and/or document
  • F11 - Create  chart
  • Ctrl + Shift + ; - Enter the current time
  • Ctrl + ; - Enter the current date
  • Shift + F3 - Open the Excel formula window
  • Shift + F5 - Bring up search box.
  • Ctrl + A - Select all contents of the worksheet
  • Ctrl + B - Bold highlighted selection
  • Ctrl + I - Italic highlighted selection
  • Ctrl + U - Underline highlighted selection
  • Ctrl + P - Bring up the print dialog box to begin printing
  • Ctrl + Z - Undo last action
  • Ctrl + F9 - Minimise current workbook
  • Ctrl + F10 - Maximise currently selected workbook
  • Ctrl + F6 - Switch between open workbooks/window
  • Ctrl + Page Up - Move between Excel worksheet in the same Excel document.
  • Ctrl + Page Down - Move between Excel worksheets in the same Excel document
  • Ctrl + Tab - Move between two or more open Excel files
  • Alt + = - Create a formula to sum all of the above cells
  • Ctrl + ’ - Insert the value of the above cell into cell currently selected.
  • Ctrl + Arrow key - Move to next section to text
  • Ctrl + Space - Select entire column
  • Shift + Space - Select entire row

Computer - Some Important Short Forms Full Forms:

"Computer - Some Important Short Forms"

  • GOOGLE : Global Organization Of Oriented Group Language Of Earth .
  • YAHOO : Yet Another Hierarchical Officious Oracle .
  • WINDOW : Wide Interactive Network Development for Office work Solution
  • COMPUTER : Common Oriented Machine Particularly United and used under Technical and Educational Research.
  • VIRUS : Vital Information Resources Under Siege .
  • UMTS : Universal Mobile Telecommunications System .
  • AMOLED: Active-matrix organic light-emitting diode
  • OLED : Organic light-emitting diode
  • IMEI: International Mobile Equipment Identity .
  • ESN: Electronic Serial Number .
  • UPS: uninterrupted power supply .
  • HDMI: High-Definition Multimedia Interface
  • VPN: virtual private network
  • APN: Access Point Name
  • SIM: Subscriber Identity Module
  • LED: Light emitting diode.
  • DLNA: Digital Living Network Alliance
  • RAM: Random access memory.
  • ROM: Read only memory.
  • VGA: Video Graphics Array
  • QVGA: Quarter Video Graphics Array
  • WVGA: Wide video graphics array.
  • WXGA: Wide screen Extended Graphics Array
  • USB: Universal serial Bus
  • WLAN: Wireless Local Area Network
  • PPI: Pixels Per Inch
  • LCD: Liquid Crystal Display.
  • HSDPA: High speed down-link packet access.
  • HSUPA: High-Speed Uplink Packet Access
  • HSPA: High Speed Packet Access
  • GPRS: General Packet Radio Service
  • EDGE: Enhanced Data Rates for Global Evolution
  • NFC: Near field communication
  • OTG: on-the-go
  • S-LCD: Super Liquid Crystal Display
  • O.S: Operating system.
  • SNS: Social network service
  • P.O.I: point of interest
  • GPS: Global Positioning System
  • DVD: Digital Video Disk / digital versatile disc
  • DTP: Desk top publishing.
  • DNSE: Digital natural sound engine .
  • OVI: Ohio Video Intranet
  • CDMA: Code Division Multiple Access
  • WCDMA: Wide-band Code Division Multiple Access
  • GSM: Global System for Mobile Communications
  • WI-FI: Wireless Fidelity
  • DIVX: Digital internet video access.
  • APK: authenticated public key.
  • J2ME: java 2 micro edition
  • DELL: Digital electronic link library.
  • ACER: Acquisition Collaboration Experimentation Reflection
  • RSS: Really simple syndication
  • TFT: thin film transistor
  • AMR: Adaptive Multi- Rate
  • MPEG: moving pictures experts group
  • IVRS: Interactive Voice Response System
  • HP: Hewlett Packard-Gauri

Computer - Some Important Abbreviations

All Computer - "Some Important Abbreviations". Seeing the trend of the IBPS Clerk Exam Pattern till now, 3-4 questions can be expected in the future too. So, please practise well!!


  • Al – Artificial intelligence
  • ALGOL – Algorithmic Language
  • ARP – Address resolution Protocol
  • ASCII – American Standard Code for Information Interchange


  • BINAC  - Binary Automatic Computer
  • BCC – Blind Carbon Copy
  • Bin – Binary
  • BASIC - Beginner’s All-purpose Symbolic Instruction Code
  • BIOS – Basic Input Output System
  • Bit – Binary Digit
  • BSNL – Bharat Sanchar Nigam Limited


  • CC – Carbon Copy
  • CAD – Computer Aided Design
  • COBOL – Common Business Oriented Language
  • CD – Compact Disc
  • CRT – Cathode Ray Tube 
  • CDR – Compact Disc Recordable
  • CDROM – Compact Disc Read Only Memory 
  • CDRW – Compact Disc Rewritable
  • CDR/W – Compact Disk Read/Write


  • DBA – Data Base Administrator
  • DBMS – Data Base Management System 
  • DNS – Domain Name System
  • DPI – Dots Per Inch
  • DRAM – Dynamic Random Access Memory
  • DVD – Digital Video Disc/Digital Versatile Disc
  • DVDR – DVD Recordable
  • DVDROM – DVD Read Only Memory
  • DVDRW – DVD Rewritable
  • DVR – Digital Video Recorder
  • DOS – Disk Operating System


  • EBCDIC – Extended Binary Coded Decimal Interchange Code
  • e-Commerce – Electronic Commerce
  • EDP – Electronic Data Processing
  • EEPROM – Electrically Erasable Programmable Read Only Memory
  • ELM/e-Mail – Electronic Mail
  • ENIAC - Electronic Numerical Integrator and Computer 
  • EOF - End Of File 
  • EPROM - Erasable Programmable Read Only Memory 
  • EXE - Executable 


  • FAX - Far Away Xerox/ facsimile
  • FDC - Floppy Disk Controller 
  • FDD - Floppy Disk Drive 
  • FORTRAN - Formula Translation 
  • FS - File System 
  • FTP - File Transfer Protocol


  • Gb - Gigabit 
  • GB - Gigabyte 
  • GIF - Graphics Interchange Format 
  • GSM -  Global System for Mobile Communication


  • HDD - Hard Disk Drive 
  • HP - Hewlett Packard
  • HTML - Hyper Text Markup Language 
  • HTTP - Hyper Text Transfer Protocol


  • IBM - International Business Machine 
  • IM - Instant Message
  • IMAP - Internet Message Access Protocol 
  • ISP - Internet Service Provider


  • JPEG - Joint Photographic Experts Group


  • Kb - Kilobit 
  • KB - Kilobyte 
  • KHz - Kilohertz 
  • Kbps - Kilobit Per Second


  • LCD – Liquid Crystal Display
  • LED – Light Emitting Diode
  • LPI – Lines Per Inch
  • LIS – Large Scale Integration


  • Mb – Megabit
  • MB – Megabyte
  • MPEG – Moving Picture Experts Group
  • MMS – Multimedia Message Service
  • MICR – Magnetic Ink Character reader
  • MIPS – Million Instructions Per Second


  • NIC – Network Interface Card
  • NOS – Network Operating System


  • OMR – Optical Mark Reader
  • OOP – Object Oriented Programming
  • OSS – Open Source Software


  • PAN – Personal Area Network
  • PC – Personal Computer
  • PDA - Personal Digital Assistant
  • PDF – Portable Document Format
  • POS – Point Of Sale
  • PNG - Portable Network Graphics
  • PPM – Pages Per Minute
  • PPP – Point-to-Point Protocol
  • PROM – Programmable Read Only Memory
  • PSTN – Public Switched Telephone Network
  • POST – Power On Self Test
  • PING – Packet Internet Gopher


  • RAM – Random Access Memory
  • RDBMS – Relational Data Base Management System
  • RIP – Routing Information Protocol
  • RTF – Rich Text Format


  • SMTP – Simple Mail Transfer Protocol
  • SQL – Structured Query Language
  • SRAM – Static Random Access Memory
  • SNMP – Simple Network Management Protocol
  • SIM – Subscriber Identification Module


  • TCP – Transmission Control Protocol
  • TB – Tera Bytes


  • UPS – Uninterrupted Power Supply
  • URI – Uniform Resource Identifier
  • URL – Uniform Resource Locator
  • USB -  Universal Serial Bus 
  • ULSI - Ultra Large Scale Integration
  • UNIVAC - Universal Automatic Computer


  • VAR – Variable
  • VGA – Video Graphics Array
  • VSNL – Videsh Sanchar Nigam Limited
  • VDU – Visual Display Unit


  • Wi-Fi – Wireless Fidelity
  • WLAN – Wireless Local Area Network
  • WPA – Wi-Fi Protected Access
  • WWW – World Wide Web
  • WORM – Write Once Read Many


  • XHTML – eXtensible Hyper text Markup Language
  • XML -  eXtensible Markup language


  • ZB – Zeta Byte

Some other Important Computer Abbreviations - 

  • OCR - Optical Character Readers
  • ODBC - Open Data Base Connectivity
  • OLE - Object Linking And Embedding
  • OMR - Optical Mark Reader
  • ONE - Open Network Architecture
  • OOA - Object Orient Analysis
  • OOAD - Object Oriented Analysis And Design
  • OOP - Object Oriented Programming
  • OOPS - Object Oriented Programming System
  • OPEN GL - Open Graphics Library
  • OS - Operating System
  • OSI - Open System Interconnection
  • PC - Personal Computer
  • PCI - Peripheral Component Interconnect
  • PCMCIA - Personal Computer Memory Card International Association
  • PDA - Personal Digital Assistant
  • PDF - Portable Document Format
  • PDL - Page Description Language
  • PDU - Protocol Data Unit
  • PIC - Programming Interrupt Control
  • PILOT - Programmed Inquiry Learning Or Teaching
  • PLA - Programmable Logic Array
  • PLC - Programmable Logic Controller
  • PNG - Portable Network Graphics
  • PNP - Plug And Play
  • PPP - Peer To Peer Protocol
  • PPTP - Point To Point Tunneling Protocol
  • PROM - Programmable Read Only Memory
  • PS - Post Script
  • RADSL - Rate Adaptive Digital Subscribes Line
  • RAID - Redundant Array Of Independent Disks
  • RAM - Random Access Memory
  • RAMDAC - Random Access Memory Digital To Analog Converter
  • RAS - Remote Access Network
  • RD RAM - Rambus Dynamic Random Access Memory
  • RDBMS - Relational Data Base Management System
  • RDO - Remote Data Objects
  • RDP - Remote Desktop Protocol
  • RFC - Request For Comments
  • RGB - Red Green Blue
  • RICS - Reduced Instruction Set Computer
  • RIP - Raster Image Processor
  • RISC - Reduced Instruction Set Computer
  • ROM - Read Only Memory
  • RPC - Remote Procedure Call
  • RTC - Real Time Clock
  • RTF - Rich Text Format
  • RTOS - Real Time Operating System
  • SACK  - Selective Acknowledgements
  • SAM - Security Access Manager
  • SAP - Service Access Point, Systems ApplicationsProducts
  • SCMP -  Software Configuration Management Plan
  • SD RAM - Synchronous Dynamic Random AccessMemory
  • SDD  - Software Design Description
  • SDK - Software Development Kit
  • SDL - Storage Definition Language
  • SDN - Integrated Service Digital Network
  • SDSL - Symmetric Digital Subscribes Line
  • SG RAM - Synchronous Graphics Random AccessMemory
  • SGML - Standard Generalized Markup Language
  • SIM - Subscriber Identification Module
  • SIMD - Single Instruction Multiple Data
  • SISD - Single Instruction Single Data
  • SIU - Serial Interface Unit
  • SMP - Symmetric MultiProcess
  • SMS - Short Message Service
  • SMTP - Simple Mail Transfer Protocol
  • SNA - System Network Architecture
  • SNAP - Sub Network Access Protoco
  • lSNMP - Simple Network Management Protocol
  • SNOBOL - String Oriented Symbolic Language
  • SOAP - Simple Object Access Protocol
  • SPX - Sequenced Packet Exchange
  • SQA - Statistical Quality Assurance
  • SQL - Structured Query Language
  • SRAM - Static Random Access Memory
  • SRS - Software Requirements Specification
  • STP - Shielded Twisted Pair
  • SVVP - Software Verification And Validation Plan
  • SW - Software
  • TAPI - Telephony Application Program Interface
  • TB - Tera Bytes
  • TCP - Transmission Control Protocol
  • TCPIP - Transmission Control Protocol InternetProtocol
  • TDI - Transport Data Interface
  • TDMA - Time Division Multiple Access
  • TPM - Transactions Processing Monitor
  • TSR - Terminate And Stay Residents
  • UDD - User Datagram Protocol
  • UDP - User Datagram Protocol
  • UI - User Interface
  • UML - Unified Modelling Language
  • UNC - Universal Naming Convention
  • UNIX - Uniplexed Information And ComputerSystems
  • URL - Universal Resource Locator
  • USB - Universal Serial Bus
  • USRT - Universal Synchronous ReceiverTransmitted
  • UTP  -Unshielded Twisted Pair
  • VAN - Virtual Area Network
  • VAST - Very Small Aperture Terminal
  • VB - Visual Basic
  • VC++ - Visual C++
  • VCD - Video Compact Disc
  • VDL - View Definition Language
  • VGA - Video Graphics Array
  • VHS - Video Home System
  • VLIW - Very Long Instruction Words
  • VLSI - Very Large Scale Integrated Circuits
  • VPN - Virtual Private Network
  • VRAM - Video Random Access Memory
  • VRML - Virtual Reality Modelling Language
  • VS - Visual Studio
  • VVR - Software Validation And Validation Report
  • VXD - Virtual Device Driver
  • W3C - World Wide Web Consortium
  • WAIS - Wide Area Information Servers
  • WAN - Wide Area Network
  • WAP - Wireless Application Protocol
  • WBEM - WebBase Enterprise Management
  • WDM - Wave Division Multiplexing


Computer Tit-Bits:

  • KonradZuse invented the World’s first computer was named as the Z1 in 1936. It was the First freely programmable computer.
  • The first computer game was “Spacewar!".  This game was programmed by Steve Russell and first released in February 1962.
  • Jack Kilby& Robert Noyce develop the first Integrated Circuit (The Chip) in 1958
  • In 1954 John Backus & IBM develop first successful high level programming language FORTRAN Computer Programming Language
  • ARPAnet the first Internet connectivity started in 1969.
  • WordStar Software is the first release of Word Processors application developed by Seymour Rubenstein & Rob Barnaby in 1979.
  • Apple Lisa Computer is the first home computer with a GUI (graphical user interface) in 1983
  • The first web browser was invented by Sir Tim Berners-Lee in 1990. It was called WorldWideWeb (no spaces) and was later renamed Nexus.
  • The first search engine created was Archie, in 1990 by Alan Emtage, a student of McGill University in Montreal.
  • On Aug. 6, 1991, Tim Berners-Lee published the first internet site from CERN, the world’s largest physics lab in Geneva, Switzerland.
  • The first supercomputer was the Control Data Corporation (CDC) 6600 with a single CPU. It was released in 1964.
  • India's first supercomputer is PARAM 8000, which was installed in 1991.
  • NVIDIA's Tesla computer was launched in London in December 2008 is first personal supercomputer.
  • The first banner advertising was used in 1994.
  • The E-mail is older than the World Wide Web.
  • The first domain name ever registered was
  • Rich Skrenta generated the first computer virus in February 1982. He is the author of Elk Cloner, the first computer virus to be released outside of the lab.
  • The first version of Excel was released for the Mac in 1985 and the first Windows version was released in November 1987.
  • Nobody can create a folder named “Con” in windows system.
  • TYPEWRITER is the longest word that can be made using the letters only on one row of the keyboard
  • Each Excel worksheet holds 1,048,576 rows and 16, 384 columns which makes 17,179,869,184 cells per worksheet.
  • Up to last 100 actions can be undo in excel.

Quick Study Notes on Computers

"Quick Notes on Computer", which can be expected in the ongoing IBPS PO/Clerk 2016-17 Exam. Practise well!!
Memory Units:
4 bit = 1 nibble
8 bit = 1 byte
1024 B = 1 KB (Kilo Byte)
1024 KB = 1 MB (Mega Byte)
1024 MB = 1 GB (Giga Byte)
1024 GB = 1 TB (Tera Byte)
1024 TB = 1 PB (Peta Byte)
1024 PB = 1 XB (Exa Byte)
1024 XB = 1 ZB (Zeta Byte)
1024 ZB = 1 YB (Yota Byte)
bit < Byte < KB < MB < GB < TB < PB < XB < ZB < YB
  • bit (b)
  • Byte (B)
Mbps – mega bits per sec.
MBps – mega Bytes per sec.
  • The information you put into the computer is called Data
  • Information of a computer is stored as Digital Data
  • A number system defines a set of values that is used to represent Quantity
  • In which number system, the modern computers are operated?
Binary Number System
  • Name the most significant bit, which represent 1 and 0 for a positive number and negative number, respectively.
Sign Bit
  • Which coding scheme represents data in a binary form in the computer system? ASCII, EBCDIC and Unicode are the most commonly used codes under this scheme.
Binary Coding Scheme
  • EBCDIC is a 8-Bit code with 256 different representations of characters. It is mainly used in mainframe computers.
  • EBCDIC stands for Extended Binary Coded Decimal Interchange Code
  • In the Hexadecimal Number System each number represents a power of 16. To represent the decimal numbers, this system uses numbers from 0 to 9 and characters from A to F to represent numbers 10-15, respectively. It is commonly used as a shortcut notation for groups of four binary digits
  • BCD is a method that represents the decimal digits with the help of binary digits. It takes advantage that one decimal numeral can be represented by 4-bit pattern. BCD stands for Binary Coded Decimal
  • This coding system is used to represent the interval storage area of the computers. In this system, every character is represented by a combination of bits. Binary Coding System
  • The Base or Radix of the decimal number system is 10
  • The arithmetic operations (addition, subtraction, multiplication and division) performed on the binary numbers is called Binary Arithmetic
  • What is the standard code the computer industry created to represent characters? American Standard Code for Information Interchange (ASCII)
  • ASCII is a code used for standardizing the storage and transfer of information amongst various computing devices.
  • It is required for representing more than 64 characters. At present, the mostly used coding systems are ASCII and EBCDIC
  • Which code is also known as Reflected Code? Gray Code
  • The 7-bit ASCII code is widely used for Two (0 or 1)
  • In the binary language, each letter of the alphabet, each number and each special character is made up of a unique combination of Eight Bits.
  • Which was the first general purpose computer, designed to handle both numeric and textual information? Universal Automatic Computer (UNIVAC) (1951)
First Generation (1940-1956) Vacuum Tubes:
  • The first computers used vacuum tubes for circuitry and magnetic drums for memory, and were often enormous, taking up entire rooms.
  • The UNIVAC and ENIAC computers are examples of first-generation computing devices. 
  • In first generation of computer, this operating system allowed only one program to run at a time and a number of input jobs are grouped for processing. It is known as Batch Processing.
Second Generation (1956-1963) Transistors:
  • Transistors replaced vacuum tubes and ushered in the second generation of computers.
Third Generation (1964-1971) Integrated Circuits:
  • The development of the integrated circuit was the hallmark of the third generation of computers. Transistors were miniaturized and placed on silicon chips, called semiconductors, which drastically increased the speed and efficiency of computers.
Fourth Generation (1971-Present) Microprocessors:
  • The microprocessor brought the fourth generation of computers, as thousands of integrated circuits were built onto a single silicon chip.
  • What in the first generation filled an entire room could now fit in the palm of the hand
  • Fourth generation computers also saw the development of GUIs, the mouse and handheld devices
Fifth Generation (Present and Beyond) Artificial Intelligence:
  • Fifth generation computing devices, based on artificial intelligence, are still in development, though there are some applications, such as voice recognition, that are being used today.
  • In 1981 IBM introduced its first computer for the home user, and in 1984 Apple introduced the Macintosh.

here are some Computer quiz and MCQs Questions and Answers for your IBPS Bank Exam.
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    IBPS Bank Exam Latest News and Content for Computer Awareness Test and Knowledge:

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