session 1 - important terminologies - without audio
TRANSCRIPT
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Important
Terminologies
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RAJU
10
COLLEGE
PENS
RAJU BOUGHT 10 PENSFOR THE COLLEGE.
PROCESS
DATA INFORMATION
Unprocessed and unformatted facts & figures of objects
Processed andformatted facts & figures of objects
MANUAL
COMPUTER
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It is a command given to a computer which when
executed will give the desired result
SYNTAX
SEMANTICS
Rules and regulations for writing
an instruction
Meaning of the instruction
Raju plays football.
Football plays Raju.
Syntax - Semantics -
Syntax - Semantics -
N V N
N V N
Computer can detect only syntax errors and not semantic errors
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Group of instructions written in a proper SEQUENCE,
which when executed by a computer will give the desiredresult.
Program fora trip to GOA
1. Make a list of students
2. Fix up the bus
3. Collect the fare
4. Decide the places to visit5. Finalize the departure date
6. ----------------
7. ---------------
8. Back home
ComputerProgram1. Input A,B
2. Sum = A + B
3. Print Sum
4. ----------------
5. ---------------
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Group of inter-related programs which together performs a
major task and each of the programs does a particular task.
Program 1
Program 2
Program 3
Program 4
Program
Library ManagementSoftware
This maintains all book details
Books issue and receipt
Maintains records of all magazines
Fine collection
Purchase of new books
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Physical components of a computer
Keyboard
Mouse
Add-on cards
MemoryMother board
PCBs
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Means of communication
LLL Low Level Language
AL Assembly Language
HLL
High Level Language
Machine LanguageBinary Language
BASIC, COBOL, C,C++, JAVA,VISUAL BASIC, etc.
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System software which converts a computer language
into machine understandable language
Printf(hello);Printf(Enter a number);Scanf(%d,&num);
Hey! I dont follow u
I know only 01010101
High Level Language Low Level Language
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COMPILERINTERPRETER
Mr.Sam
Experience
of 2 years astranslator
Dr.Kumar
Experience of
10 years astranslator
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COMPILER
System software which converts HLL to
LLL all the instructions at a time
INTERPRETERSystem software which converts HLL toLLL one instruction at a time
ASSEMBLERSystem software which converts AL
programs to LLL
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Instruments or electronic gadgets
Input Devices
Output Devices
Storage Devices
Processing Devices
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Keyboard
Mouse
JoystickLightpen
Scanner
Digitizer
Voice recogniser
Barcode reader
Optical character reader
others
Visual Display Unit (VDU)
Printers
Plotter
Speakers
Liquid Crystal Displays(LCD)
7-segment LED displays
others
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System software which acts as an interface between
the user and the hardware of the computerEgs. DOS, WINDOWS, UNIX, LINUX, etc.
Warm booting
(ctrl + alt + del)
Cold booting
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Connecting of 2 or more computers
LAN Local Area Network
MAN Metropolitian Area Network
WAN Wide Area Network
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summary Data Information Instruction Program
Software Hardware Language Translators
Devices Operating System Booting Network
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Chapter 1
History of Computers Important Terminologies
Characteristics of a computer
Era of digital computers Generations of Computer
Classification of Computer
Computer Applications
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