Computer Note for SBI clerk/UIIC/SBI PO and all other exams

The most important and neglected subject of every major exam. Last year many students were not able to qualify the final cut off because of this subject. This shows how important each and every subject is. So here we are providing basic computer notes which are very important for every banking exam

DATA REPRESENTATION - 

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.

GENERATIONS OF COMPUTER

• 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.

Data Interpretation Question set for SBI/UIIC/SBI PO:

Directions: Read the table carefully to answer the questions that follows :

Percentage wise share distribution is given of different companies P, Q, R, S and T out of the total shares.

1. Total shares sold by companies P, R and T in year 2001 is what percentage of the total share of company R ?

1) 24.67 

2) 21.67 

3) 25.67 

4) 28.67 

5) None of these

2. What is the average share sold by all the companies in year 2004 ?

1) 175 

2) 160 

3) 165 

4) 155 

5) None of these

3. What is the difference of share sold by companies P, T and Q in year 2005 together and same in year 2004 ?

1) 205 

2) 204 

3) 206 

4) 305 

5) None of these

4. What is the average share sold by company R in all the years together ?

1) 298 

2) 200 

3) 198 

4) 398 

5) None of these

5. Total no. of shares sold by companies P, Q and S in 2003 together ?

1) 493.5 

2) 393.5 

3) 593.5 

4) 429 

5) None of these

Direction: Read the line graph carefully to answer the questions below :

6. What is the total number of students hired by TCS for all centres ?

1) 2150 

2) 2350 

3) 2450 

4) 3000 

5) None of these

7. Total no. of students heired by all the companies for Indore centre is ?

1) 2500 

2) 2400 

3) 2450 

4) 2300 

5) None of these

8. What is the difference between total number of students heired by all the companies for lucknow centre and Indore centre ?

1) 950 

2) 850 

3) 900 

4) 925 

5) None of these

9. What is the average no. of students heired by TCS for all centres taken together ?

1) 530 

2) 630 

3) 430 

4) 420 

5) None of these

10.What is the difference between total no. of students hired by all companies for Indore and average no. of students for the same ?

1) 1825 

2) 1925 

3) 1725 

4) 2025 

5) None of these

Answers:

1. 2

(30 + 50 + 50)/600 * 100 = 130/6 = 21.67

2. 3

(40 + 50 + 450 + 105 + 180)/5 = 165

3. 2

(24 + 150 + 300) - (40 + 50 + 180) = 204

4. 3

(50 + 40 + 240 + 450 + 210)/5 = 198

5. 2

96 + 140 + 157.5 = 393.5

6. 1

450 + 200 + 500 + 350 + 650 = 2150

7. 4

350 + 600 + 650 + 700 = 2300

8. 3

2300 - 1400 = 900

9. 3

2150/5 = 430

10. 3

2300 - 2300/4 = 1725 

Reading Comprehension for SBI/UIIC/SBIPO

Directions (Q. 1 -10): Read the passage carefully and answer the questions given below it. Certain words/ phrases have been given in bold to help you locate them while answering some of the questions.

While it is universally accepted that the end of all education lies in developing the ability to have a meaningful and rewarding engagement at the end of the completion of formal courses, the fact remains that the Indian context is far from satisfactory in terms of gross pass-out and employment mismatch. Commonly classed as the ‘unemployed’, millions of our youth are outside the scope of financial engagement largely because the skills they attain during education have little demand in the employment scenario in India. 

This happens to be the greatest cause of worry among all stakeholders since lack of a rewarding engagement at the end of education carries with it the hazard of a ripple de-motivating effect that adversely affects the education process itself. It is common knowledge that Indian education is still oriented towards the services sector with most of the institutions in the system churning out graduates in general streams and subjects. The numbers in this regard are disproportionately high compared to the requirements of such graduates in the country and it is a common sight that most of such graduates end up with a profession which has little to do with the education they attain mostly at state expense. Hence, the common sight of disconcertingly large number of university pass-outs sitting for competitive examinations in the services sector in the country. Not surprisingly, an overwhelming majority of them remain unemployed after exhausting their attempts at securing jobs in the services sector or are forced to adopt a profession that has little to do with their aptitude or interests. While importance of vocational education at the level of schools had been realised as early as the 1950s with the setting up of Industrial Training Institutes (ITIs), it was only with the National Policy of Education, 1986, that a credible and concrete set up was fine-tuned in the context of vocational education in India. The setting up of the National Skill Development Council, the Department of School Education and Literacy’s ‘Technical and Vocational Education and Training initiatives’ (TVET) in schools and the Department of Higher Education’s Technical Education initiatives, have all contributed significantly towards the popularisation of vocational education right from the level of secondary stage of education itself. Though the National Skill Development Policy, 2009 seeks to address issues concerning the vocational education sector in the country, most interventions required in this sector are essentially long-term ones requiring a simultaneous overhaul of vocational education curricula according to industry needs; popularisation of vocational education among entrants at the higher secondary stage; development of a viable and robust training mechanism for vocational education teachers in schools, and increased industry-institution interface in vocational education. Also, a large section of the population still consider a general education degree more acceptable socially than a vocational education degree in spite of the fact that vocational education offers greater chances of employment in the short and medium run.

While most issues have received attention from governments and policy planners, vocational education still suffers from an apathy caused partly by institutional neglect as also the weakness of the general population to go for general degree courses catering exclusively to the services sector. This mismatch carries enormous economic costs through wastage of scarce economic resources and social costs with an increasingly unmanageable number of unemployable general education graduates. The root cause for this is that vocational education has been considered as an appendage to the general education framework in the country, the idea being that vocational education is meant to absorb spill-overs. A dedicated vocational education policy coupled with provision for adequate resources and active industry participation can reverse the general neglect vocational education has faced in the country since long.

1. What does the author mean by ripple demotivation effect, according to the passage?

1) Demotivation in the field of educational institution due to lack of funds.

2) A vicious cycle in which students are demotivated due to unemployment.

3) Education demotivates the stakeholders for some times.

4) The education system gets demotivated in imparting skills.

5) Other than given options

2. Which of the following did not promote the vocational education?

1) National Skill Development Council

2) Department of School Education

3) Literacy's Technical and Vocational Education and Training

4) National Policy of Education

5) Other than given options

3. Indian education is mainly inclined towards

1) Primary sector 

2) Agricultural sector 

3) Manufacturing sector

4) Service sector or Tertiary sector 

5) Secondary sector

4. Which of the following statement is false in the context of the given passage?

1) The education attained by the graduates are not productive and it is mostly attained at state's cost.

2) The pass out are not able to get jobs.

3) The unemployed youths are burden to government.

4) Mostly pass out are involved in the jobs which reduces their productivity

5) Other than given options

5. Which of the following points is/are suggested by the author to implement vocational education?

1) A committed vocational educational policy should be implemented.

2) Try to meet the need of society.

3) Strengthening University Industry Interactions.

4) Only 1) and 3)

5) All 1), 2) and 3)

6. Choose the word which is MOST OPPOSITE in meaning of the word 'churning' as used in the passage?

1) Stiring 

2) Agitating 

3) Whisking 

4) Whipping 

5) Settling

7. Choose the word which is MOST SIMILAR in meaning to the word 'entrants' as used in the passage?

1) Spectator 

2) Professional 

3) Fan 

4) Expert 

5) Aspirant

8. Choose the word which is MOST SIMILAR in meaning to the word 'exclusively' as used in the passage?

1) Rarely 

2) Particularly 

3) Partially 

4) Silently 

5) Oftenly

9. Choose the word which is MOST OPPOSITE in meaning of the word 'overhaul' as used in the passage?

1) Renovate 

2) Revamp 

3) Mend 

4) Ignore 

5) Inspect

10. Choose the word which is MOST SIMILAR in meaning to the word 'appendage' as used in the passage?

1) Depression 

2) Body 

3) Advantage 

4) Addendum 

5) Rejection

Answers:

1. 2

2. 5

3. 4

4. 5

5. 4

6. 5

7. 5

8. 2

9. 4

10. 4

Data Interpretation for SBI and other upcoming exams:

Directions (Q. 1-5): Study the following graph and the table and answer the question given below.

1.What was the number of males in Uttarakhand in the year 2005?

(a) 254250

(b) 294840

(c) 321840

(d) 347200

(e) 367790 

2.What was the total number of illiterate people in Gujarat and Orissa?

(a)876040

(b) 932170

(c) 1081550

(d) 1161160

(e) None of these

3.What is the ratio of the number of females in Kerala to the number of females in Karnataka?

(a)9 : 5

(b) 9 : 7

c) 15 : 11

(d) 15 : 14

(e) 17 : 21

4.What will be the percentage of total number of males in Uttarakhand, Orissa and Goa together to the total population of all the given states?

(a)  26.5%

(b) 27.5%

(c) 28.5%

(d)  31.5%

(e) None of these

5.If in the year 2005, there was an increase of 10% in the population of Uttarakhand and 12% in the population of Orissa compared to the previous year, then what was the ratio of populations of Uttarakhand and Orissa in 2004?

(a) 42 : 55

(b) 48 : 55

(c) 47 : 57

(d) 46 : 53

(e) 48 : 59

Directions (Q. 6-10): The following table shows the number of new employees added to different categories of employees in a Company and also the number of employees from these categories who left the company every year since the foundation of the Company in 2010. 

6.During the period between 2010 and 2015, the total number of Supervisors who left the Company is what percent of the total number of Supervisors who joined the Company?

(a) 21%

(b) 23%

(c) 27%

(d) 29%

(e) 32%

7.For which of the following categories the percentage increase in the number of employees working in the Company from 2010 to 2015 was the minimum?

(a) Managers

(b) Fitters

(c) Supervisors 

(d) Accountants

(e) Assistants

8.What is the difference between the total number of Fitters added to the company and the total number of Accountants added to the Company during the years 2011 to 2015?

(a) 128

b) 112

(c) 96

(d) 88

(e) 172

9.What was the total number of Assistants working in the Company in the year 2014?

(a) 1312

(b) 1192

(c) 1088

(d) 1068

(e) 1008

10. What is the pooled average of the total number of employees of all categories in the year 2012?

(a) 1325

(b) 1285

(c) 1265

(d) 1235

(e) 1195

Answers:

English question set (Cloze Test) for SBI and other upcoming exams:

Direction: In the following passage there are blanks, each of which has been numbered. One of which fits the blank appropriately. Find out the appropriate word in each case.

There is great hue and (1) to empower women. Not only woman associations but also state and the (2) reforms shower torrents of speeches about the woman (3). But the irony is that crimes against women are increasing in leaps and (4). Dowry deaths are multiplying. Torture and exploitation of women is (5). Women education is still much (6). Most of the women are still (7) within the four walls of their houses, where they work like (8). The women in rural areas are suffering even more and most of them are (9). The other side of the picture is that a minority of women are in public service and politics. But the women in politics have either (10) family background in that sphere or have been raised due to the grace of their male sphere or well wishers

Q.1.   (1) cry              (2) scream              (3) shriek                 (4) shudder        (5) chaos

Q.2.   (1) social          (2) chaotic              (3) mental               (4) emotional     (5) personality

Q.3.   (1) downfall     (2) denunciation   (3) trap                    (4) assailant       (5) upliftment

Q.4.   (1) wounds       (2) bounds             (3) traitor               (4) trash              (5) deteriorate

Q.5.   (1) halt             (2) baulk                 (3) intact               (4) stopped        (5) pause

Q.6.   (1) aware         (2) ignored             (3) enlightened      (4) cognizant       (5) conscious

Q.7.   (1) free            (2) rescued            (3) saved              (4) caged              (5) liberated

Q.8.   (1) idle            (2) lazy                   (3) drudges          (4) thinker           (5) shirker

Q.9.   (1) illiterate    (2) educated         (3) literate           (4) aware              (5) letter

Q.10. (1) her             (2) his                    (3) if                     (4) their                (5) you

Answers:

1. 1

2. 1

3. 5

4. 2

5. 3

6. 2

7. 4

8. 3

9. 1

10. 4

Reading Comprehension for SBI and other upcoming exams (v imp)

Directions (Q.1-10): Read the following passage carefully and answer the questions given below. Certain words/phrases have been printed in bold to help you locate them.

The debate over the moves by the Central and the Jammu and Kashmir governments to resettle Kashmiri Pandits in Kashmir is one that will only bring pain to any well-wisher of the State. To understand this, one has to go back in time, when the second half of the 1980s saw Kashmir spiral out of control, gripped by violence, suspicion and dread. What had begun as an ethnic conflict was soon imparted a religious colour by Pakistan’s Inter-Services Intelligence (ISI). The Pandits, a Hindu minority in the Kashmir Valley, were targeted by the Jammu Kashmir Liberation Front (JKLF), even though the organisation had sought to build on the original secular foundations of the National Conference, and by the Hizb-ul-Mujahideen, a secessionist outfit, which sparked their exodus. By 2008, their population, as assessed by the Kashmiri Pandit Sangharsh Samiti (KPSS), was reduced to 651 families from 75,343 families on January 1, 1990. Nearly 70,000 families fled in the turmoil of 1990-92, and even though the violence was brought under control, most of the remaining families left thereafter.

By 1990 — I was Special Commissioner, Anantnag, in South Kashmir then — the public had ceased to visit government offices. But in early March, several hundred people from the Nai Basti neighbourhood went to the Special Commissioner’s office in Khannabal demanding to see me. Because of the disturbed circumstances, I had set up office and residence in the rest house in the district headquarters. Mohammad Syed Shah, generally known as Syed Shah, the brother of the separatist leader, Shabbir Shah, and Muslim United Front (MUF) member of the dissolved State Assembly, demanded to know why Pandits were leaving en masse and in turn why the administration was doing nothing about it. Mr. Shah accused the administration of encouraging the migration so that the Army would be left free to unleash its heavy artillery on all habitations. When I asked the delegation if it believed that I would be party to such a plan, this was their response: ‘I had been kept in the dark, while they were privy to “secret” information’. That the Pandits were apprehensive was hardly surprising, I said. Places of worship, like the one in Anantnag, where the majority went, were being used to issue threats to them over loudspeakers. I learnt later that these inflammatory sermons, and their reverberating public applause, were audio recordings circulated to mosques to be played over loudspeakers at prayer time. Local Muslims needed to reassure the Pandits of their safety, I said. The administration would provide security whenever a threat to the Pandits was anticipated, but how effective it would all be would depend on unstinted public support, given that the residences of the Pandits were scattered. The gathering concurred and dispersed. I requested State Governor Jagmohan that he appeal to the Pandits, in a telecast, that they stay on in Kashmir, and assure them of their safety on the basis of the assurances of the Anantnag residents. Unfortunately, the only announcement to this effect was that “refugee” camps were being set up in every district, and Pandits who felt threatened could move to them rather than leave the Valley. Pandits in service who felt threatened were free to leave their stations; they would continue to be paid their salaries. I relate this story because the present flurry of allegations brings a sense of de-ja-vu. The Pandits — more than 1,20,000 in the early 1980s — numbered about 7,000 in the Kashmir Valley, in 2005.

Source- The Hindu

Q.1. Which of the following is the meaning of the word “Exodus”?

1) Creating riot

2) Extinction

3) Mass departure

4) Fear

5) None of these

Q.2. Which of the following is the synonym of the word “Dread”?

1) Apprehension

2) Fusillade

3) Lachrymose

4) Confidence

5) Stagnation

Q.3. Choose an appropriate Title for the above passage :

1) Return to a lost paradise.

2) Furious Kashmir

3) The Birth of a riot

4) Deadly Co-existence in Kashmir

5) Born to die

Q.4. Which of the following options best describes the meaning of the phrase “privy to secret information”.

1) wrong information but seems to be secret

2) All rubbish

3) Forwarding wrong but secret information

4) Well acquainted with

5) None of the above

Q.5.  Which of the following is not true according to the passage?

1) Kashmiri pandits moved to refugee camps even after the assurance from the state governor.

2) Author set up an office and resident in the affected district headquarter.

3) Mosques were to console the affected pundits and to assure them safety on loudspeakers.

4) Some people blamed the author for promoting the migration.

5) None of the above.

Q.6. Which of the following is not the synonym of the word “turmoil”?

1) chaos

2) pandemonium

3) mayhem

4) bedlam

5) None of these

Q.7. What is the synonym of the word “apprehensive”?

1) fidgety, , 

2) strained

3) tense

4) All of the above

5) None of the above

Q.8. In the passage, Mr Shah accused the administration for………….. .

1) having pandits killed in the district.

2) migration of the pandits

3) distracting the inquiry

4) not maintaining peace in the valley

5) none of the above

Q.9. What is not the synonym of word “unstinted”?

1) lavish

 2) magnanimous

3) generous

4) All of the above

5) None of the above

Q.10. Which of the following organizations is not mentioned in the passage?

1) MUF

2) KPSS

3) ISI

4) JKLF

5) None of the above

Answers:

1.(3)
2.(1)
3.(4)
4.(4)
5.(3)
6.(5)
7.(4)
8.(2)
9.(5)
10.(5)