1.1 what is computerii
DESCRIPTION
hhhhTRANSCRIPT
8/23/2015 Campus Commune
https://campuscommune.tcs.com/communities/aspire2015/content/11whatisacomputeraspire2015 1/12
×
About
About Post Offer Engagement Portal
Post Offer Engagement Portal helps young talents, waiting to join TCS, acquire knowledge that isrequired, through online training. This platform also helps trainees to learn at one's own pace, test theknowledge acquired and reinforce concepts through static and interactive means.
Post Offer Engagement consists of the following applications
For IT Trainees
AspireTech Lounges
Java LoungeDotnet LoungeMainframes LoungeUnix/C++ LoungeBIPM LoungeAssurance Lounge
Language LoungeCampus Commune
Aspire contains training materials/videos on the following courses covering basic IT topics and conceptsalong with Introduction to TCS.
Introduction to Computer SystemsProblem Solving TechniquesBasics of ProgrammingRelational Data Base Management SystemKnow your TCSBusiness Skills – The Essentials
Aspire helps in identifying IT trainees for batching (joining) based on their performance. Upon batching,trainees will be provided access to the respective Tech Lounge where they flex their muscles to learn andpractice technology related concepts and programming.
For EIS Trainees
AspireTech Lounges
Java LoungeLanguage LoungeCampus Commune
EIS Lounge contains training materials/videos on the EIS courses covering basic EIS topics andconcepts.
8/23/2015 Campus Commune
https://campuscommune.tcs.com/communities/aspire2015/content/11whatisacomputeraspire2015 2/12
×
Scoring Process
Scoring will be based on the following parameters
Academic ScoresCollege Accredition ScoreRecruitment ScoreAspire/Tech Lounge ScoreLanguage Lounge ScoreCampus Commune Score
In case of IT trainees, weighted consolidated score of an individual will decide on his/her date of joiningTCS (batching) and the Stream. Batching will be done quarterly. Top performers will be batched and theremaining trainees will have to compete against their peers for the next batching process and their scoreswill be reset.
Transparency in Performance Scores will be maintained.
×
Contact Us
For Queries or Assistance
Call: 18002093111 (Toll Free)
Email: [email protected]
Monday to Friday (8:00 AM to 8:00 PM)
×
About Certifications
Hello user!
As you have successfully completed the Aspire course curriculum, you can now further your learningprocess by signing up for a certification course.
Certifications establish credibility by serving as a proof that you have successfully completed a rigorousonline training and also serve as a token of recognition from wellestablished institutes. Completing oneor more certifications will give you an additional advantage during the Initial Learning Program.
Basic Certification
1. Installing, Configuring, and Administering Microsoft Windows 72. Installing, Configuring, and Administering Microsoft Windows 2008 Server3. Installing, Configuring, and Administering Microsoft Windows 2012 Server
8/23/2015 Campus Commune
https://campuscommune.tcs.com/communities/aspire2015/content/11whatisacomputeraspire2015 3/12
Logout
PreILP Home
4. Red Hat Certified Engineer (RHCE) Certification5. Red Hat Certified Virtualization Administrator (RHCVA) Certification6. Cisco Certified Network Associate (CCNA) Certification7. ITIL 2011 Foundation8. Installing, Configuring, and Administering Microsoft SQL Server 20089. Installing, Configuring, and Administering Microsoft SQL Server 201210. Microsoft Certified Technology Specialist (MCTS): Microsoft Exchange Server 2010,
Configuration Certification11. MCTS: Administering and Deploying System Center 2012 Configuration Manager Certification
×
Leaderboards
Close×
List of Badges
Close
Aspire 2015
Introduction to Computer Systems
1.Introduction to Computer Technology
Q
2.Computer Organization and Architecture
Q
3.Systems Software
Q
4.Introduction to Operating System
Q
Genius
Earn this!Intellect
Earn this!Guru
Earn this!
8/23/2015 Campus Commune
https://campuscommune.tcs.com/communities/aspire2015/content/11whatisacomputeraspire2015 4/12
5.Computing Environments
Q Course Completion Quiz
1.1. What is a Computer
Introduction
Computers have become an indispensable part of our daily life. Be it connecting with our friends,shopping, gaming, booking tickets, getting the score updates, listening to music, watching movies as wellas live TV programs and so on (refer Figure 1.1, 1.2, 1.3 and 1.4). Computers have made our life not onlyeasy but more interesting as well. It is an advantage for us, that we are living in the period of suchtechnological revolutions. So, let us explore what Computer Technology actually is and how it works.
8/23/2015 Campus Commune
https://campuscommune.tcs.com/communities/aspire2015/content/11whatisacomputeraspire2015 5/12
What is a Computer
A computer is a machine that executes a set of arithmetic or logical instructions. The sequence of theseinstructions can be changed to perform a variety of operations and get various outputs.
For example, it can perform arithmetic instructions (instructions used for calculations) like Add,Multiply, Subtract or Divide. It can calculate and store 2 + 3 = 5 as result in the memory.
Logical instructions have some conditions that evaluate to either true or false (called Boolean values).Based on these conditions they derive a result. For example, we want to calculate the grade of a studentbased on the total marks as follows: If total marks is greater than 180 then, Grade of Student should be A.Else if total marks is in between 150 and 180 then Grade of Student should be B. Otherwise (that is boththe previous conditions evaluated to false) the Grade of Student will be C. So, if Tom has his total marksas 175 then, his grade will be B as the second logical condition evaluates to true, in this case.
If simply put, we can describe computer as an electronic device which takes some input like your nameand birth date and displays your age. Also it can remember your name and greet you the next time youstart it. Hence it uses information to calculate results. Also it stores and remembers information.
For example, if you have entered your name as Tom and birth date as 1st January 1995 and if the currentyear is 2014, the computer will display the result as Welcome Tom. Your age is 19 years.
The evolution of Computer Technology has been an interesting journey and starts with its pioneerCharles Babbage.
Charles Babbage, the father of computer, designed the first automatic computing engine. It was tooperate on steam and was called the Difference Engine (refer Figure 1.5).
8/23/2015 Campus Commune
https://campuscommune.tcs.com/communities/aspire2015/content/11whatisacomputeraspire2015 6/12
Harvard MarkI (refer Figure 1.6) computer was built as a partnership between Harvard and IBM in1944. It was the first programmable digital computer made in the U.S.
But it was not a purely electronic computer. The MarkI computer was constructed out of switches,clutches, relays and rotating shafts.
The machine weighed 5 tons, contained 500 miles of wire, was 51 feet long and 8 feet tall, and had a 50ft rotating shaft, turned by a 5 horsepower electric motor.
The first completely electronic computer is well known as ENIAC (Electronic Numerical Integrator AndCalculator refer Figure 1.9) and was developed by the University of Pennsylvania in 1946. This wasfollowed by many evolutions and then came Apple I computer (refer Figure 1.7) in 1976, which could besetup as a Do It Yourself Kit.
8/23/2015 Campus Commune
https://campuscommune.tcs.com/communities/aspire2015/content/11whatisacomputeraspire2015 7/12
The computers that we use today is a transformation which was a result of the invention of themicroprocessor. A microprocessor (uP) is a computer that is fabricated on an Integrated Circuit (IC refer Glossary and Figure 1.8).
It is a single integrated circuit that is sufficiently complex enough to perform the processing part of theinformation processing cycle (that is the arithmetic and logical calculations discussed above in thissection by considering information like marks, we have derived the grade of a student). In other words,it must have enough circuitry to process data, perform calculations, and facilitate interface with memory,input, output and storage devices (refer section 2.1.b for more details on Input, Output and Storagedevices).
A microprocessor can perform calculation at a super speed with accuracy. For example, the followingcalculation is performed really fast producing accurate results.
147369852 * 58937.42 * 698532.47 * 65893.6598= 399788222207794191356873.69597904
Computers had been around for 20 years before the first microprocessor was developed by Intel (one ofthe leading companies that manufactures hardware) in 1971. The micro in the name microprocessorrefers to the small physical size. Intel did not invent the electronic computer. But they were the first tosucceed in designing an entire computer on a single chip (IC).
Thus Intel 4004, the first microprocessor (uP) came into existence. The 4004 consisted of 2300
8/23/2015 Campus Commune
https://campuscommune.tcs.com/communities/aspire2015/content/11whatisacomputeraspire2015 8/12
transistors and was clocked at 108 kHz (108,000 times per second). Compare this to the 42 milliontransistors and the 2 GHz clock rate (2,000,000,000 times per second) used in a Pentium 4. Pioneer 10spacecraft, the manmade object farthest from the earth has Intel's 4004 chips.
Intel followed the 4004 with the 8008 and 8080.The Intel Pentium 4 used in today's PCs is stillcompatible with the Intel 8088 used in IBM's first PC.
In 1993 Apple released its first tablet computer named Newton Message Pad 100 and then iPad in 2010followed by a series of tablets (refer Figure 1.9) and we still have more innovations on the way.
The evolution of computer has changed it from that of the size of a room to the one that fits in your palmwith multiple times more computational ability and speed.
Few of the latest use of computer technology can be listed as below (refer Glossary for details).
Digital Signature Verification
Natural Language Speech to Text
Augmented Reality
Cloud Computing
Phablets
Omnidirectional Imaging
Social Networking
Related Material/Video Links:
History of computers: http://nptel.ac.in/courses/106102062/2
Related Videos
8/23/2015 Campus Commune
https://campuscommune.tcs.com/communities/aspire2015/content/11whatisacomputeraspire2015 9/12
Open Doubts Closed Doubts
Ask a doubt (Misuse of 'Ask a Doubt' Section will be dealt as per the Terms & Conditions of Campus Commune)
Kinnera Kavuru
when will we get the mail of joining letter for october batching?
about 16 hours ago
Komuravelli
same doubt. and any one with rank less than 1000 had access to the aspire quizes?
Sayan Mukherjee
@komuravelli... ys but only those modules which u did not reset before.
Tom Paul
My miles were 3891...rank 2016 at deadline...can i expect my joining letter for october batching?
about 17 hours ago
Sayan Mukherjee
My rank was 117 till deadline.nw its 140.wil tey consider d prvs rank or present rank???
about 20 hours ago
8/23/2015 Campus Commune
https://campuscommune.tcs.com/communities/aspire2015/content/11whatisacomputeraspire2015 10/12
Shrutika Srivastava
The score at the time of deadline would be considered.
Sayan Mukherjee
i know that the score at the time of deadline will be considered.i am asking if the rank goes behindsuppose 2000 and they take 2000 students only this batch then wat???
Yuva Konakalla
At d tym of dead line my rank is 1111...now it was 1130..y it s increasing as d quiz was locked..canany 1 know d reason?
about 21 hours ago
Mohan
At present Quizzes are not locked only the reset option is not available.
Vinay
why is tcs people not releasing DOJ for OCT batch even after 5days from cutoff date???
about 22 hours ago
Bishnu Sahoo
why reset option is not available whereas the aspire quiz has been restored
about 22 hours ago
Reddy Bokkasam
I am totally confused. Why they provided reset option to modules. Why it is necessary?
about 1 day ago
Akshay Khedkar
I think, to get score more by resetting current score and then try to score more to get joining, asearly possible.
Reddy Bokkasam
But they mentioned that, they consider the miles at the time of deadline for october batchingprocess
8/23/2015 Campus Commune
https://campuscommune.tcs.com/communities/aspire2015/content/11whatisacomputeraspire2015 11/12
Pooja Koul
will each and every placed guy get the joining letter, who have accepted the offer letter? I meancan we say that the job is secured??
about 1 day ago
Bidisha Banerjee
No one knows....even i also have the same question.
Ankit
My rank was 1593 and marks were 3927. Will I be getting joining in october?
about 2 days ago
Akshay Khedkar
yeah
but do you know when we are going to get joining letters ?
Ankit
How long will it take to get the batching process done?
about 2 days ago← Previous 1 2 3 4 5 6 7 8 9 … 66 67 Next →
×
Quiz
Your Dashboard
Pintu Kumar
0 Miles
Current Course Progress
8/23/2015 Campus Commune
https://campuscommune.tcs.com/communities/aspire2015/content/11whatisacomputeraspire2015 12/12
Overall Progress
About | Scoring Process | Contact Us
0
0