Generation of Computer
Development of computers can be divided into different generations. Each generation used different processing units. First used vacuum tubes, second used transistors, third used IC, fourth used microprocessor and fifth generation computers were based on Artificial Intelligence (AI) and are still in development. This note provide us the information about generation of computer.
Summary
Development of computers can be divided into different generations. Each generation used different processing units. First used vacuum tubes, second used transistors, third used IC, fourth used microprocessor and fifth generation computers were based on Artificial Intelligence (AI) and are still in development. This note provide us the information about generation of computer.
Things to Remember
- Vacuum tubes were used for first generation computers for circuitry and magnetic drums for memory.
- The transistors invented in 1947 which was not seen as extensive use, replaced vacuum tubes.
- The development of the Integrated Circuit (IC) was the major turning point of the third generation computers.
- A microprocessor has thousands of integrated circuits builds onto a single silicon clips.
- The fifth generation computers are based on Artificial Intelligence (AI) and are still in development.
MCQs
No MCQs found.
Subjective Questions
Q1:
What is a final account?
Type: Very_short Difficulty: Easy
Q2:
Why is final account prepared?
Type: Very_short Difficulty: Easy
Q3:
What are the main objectives of final accounts?
Type: Short Difficulty: Easy
Q4:
Define final accounts.
Type: Short Difficulty: Easy
Q5:
The following is the trial balance of trader as on 31st Chaitra, 2072:
Particulars |
Dr. Amt |
Cr. Amt |
Particulars |
Dr. Amt |
Cr. Amt |
Purchases |
5,50,000 |
|
Debtors |
48,000 |
|
Sales |
|
6,60,000 |
Discount |
4,000 |
|
Capital |
|
4,00,000 |
Advertisement |
5,000 |
|
Opening stock |
3,20,000 |
|
Bills payable |
|
10,000 |
Purchase return |
|
10,000 |
Salaries |
55,000 |
|
Carriage inward |
6,000 |
|
Interest |
4,000 |
|
Carriage outward |
8,000 |
|
Bills receivable |
8,000 |
|
Sales return |
12,000 |
|
General expenses |
5,000 |
|
10% bank loan |
|
80,000 |
Wages |
95,000 |
|
Prepaid insurance |
5,000 |
|
Cash and bank |
25,000 |
|
Creditors |
|
30,000 |
Furniture |
20,000 |
|
Rent |
20,000 |
|
|
Additional information:
Closing stock = Rs.6,00,000
Furniture = 10% depreciation is to be charged
Bad debts Rs.3,000 and provision for bad debts created @ 5%
Prepaid insurance has been expired to the extent of Rs.3,000
Salaries prepaid Rs.5,000
Goods loss by theft Rs.10,000
Wages outstanding Rs.5,000
Interest on loan for 6 months is to be paid.
Required:
Trading a/c
Profit and loss a/c
Balance sheet
Type: Short Difficulty: Easy
Q6:
The following is the trial balance of a trading concern on 31st Chaitra, 2069:
Debit |
Amount (in Rs.) |
Credit |
Amount (in Rs.) |
Building |
2,00,000 |
Capital |
4,00,000 |
Drawing |
50,000 |
12% loan |
50,000 |
Furnitures |
30,000 |
Sales |
4,00,000 |
Vehicles |
50,000 |
Commission |
3,000 |
Interest on loan |
3,000 |
Creditors |
50,000 |
Purchases |
2,50,000 |
Bills Payable |
44,000 |
Beginning stock |
1,30,000 |
Provision for doubtful debts |
2,500 |
Wages |
30,000 |
|
|
Insurance |
5,000 |
|
|
Debtors |
1,00,000 |
|
|
Bank balance |
10,500 |
|
|
Bills receivable |
40,000 |
|
|
Salaries |
51,000 |
|
|
|
9,49,500 |
|
9,49,500 |
Additional information:
Closing stock Rs.1,00,000
Write off bad debt Rs.5,000
Increase the bad debt provision to Rs.4,500 from Rs.2,500
Outstanding expenses: Wages Rs.3,000, Salaries Rs.4,000
Insurance prepaid Rs.2,000
Depreciation: Building 5%, furnitures 10% and vehicles 20%
Required:
Trading a/c
Profit and loss a/c
Balance sheet
Type: Short Difficulty: Easy
Q7:
The following trial balance and adjustments of a trading concern on Chaitra 31, 2070 were given to you:
Debit |
Amount (in Rs.) |
Credit |
Amount (in Rs.) |
Opening stock |
15,000 |
Capital |
50,000 |
Discount |
1,000 |
Creditors |
4,000 |
Audit fees |
2,500 |
Bills payable |
1,000 |
General expenses |
4,000 |
General reserves |
1,000 |
Purchases |
48,000 |
10% loan |
10,000 |
Building |
10,000 |
Provision for bad debts |
1,000 |
Machinery |
15,000 |
Discount received |
1,000 |
Book debts |
16,000 |
Sales |
77,000 |
Cash at bank |
6,000 |
|
|
Investment |
10,000 |
|
|
Bills receivable |
3,000 |
|
|
Wages and salsaries |
13,000 |
|
|
Prepaid insurance |
1,000 |
|
|
Interest on loan (for 6 months) |
500 |
|
|
|
1,45,000 |
|
|
Additional information:
Closing stock Rs.26,000
General expenses is to be paid Rs.500
Outstanding interest on loan for 6 months
Insurance expired to the extent of Rs.800
Depreciate machinery by 10%
Required:
Trading a/c
Profit and loss a/c
Balance sheet
Type: Short Difficulty: Easy
Q8:
The following trial balance of a trading concern for the year ending Chaitra 30th, 2071 is given as:
Debit |
Amount (in Rs.) |
Credit |
Amount (in Rs.) |
Land and building |
15,000 |
Unearned commission |
2000 |
Goodwill |
10,000 |
Overdraft |
12,000 |
Drawing |
5,000 |
Reserve for doubtful debts |
1,000 |
Freight on sales |
500 |
Creditors |
13,000 |
Closing stock |
7,000 |
Purchase return |
1,500 |
Discount allowed |
500 |
Sales |
90,000 |
Cash at bank |
2,200 |
Capital |
45,000 |
Bad debts |
500 |
|
|
Plant and machinery |
42,000 |
|
|
Rent, rates and insurance |
900 |
|
|
Debtors |
10,000 |
|
|
Salaries |
7,400 |
|
|
Wages |
3,000 |
|
|
Sales return |
500 |
|
|
Purchases |
48,000 |
|
|
Opening stock |
12,000 |
|
|
Additional information:
Depreciate plant and machinery by 10%
Reserve for doubtful debts is to be maintained at 5%
Unearned commission earned to the extent of Rs.1,500.
Prepaid salary amounted to Rs.400
Required:
Trading a/c
Profit and loss a/c
Balance sheet
Type: Short Difficulty: Easy
Videos
Final Accounts
Final Accounts
Adjustments in Final Accounts

Generation of Computer
Computer Generation
The history of the computer is also referred to its generation. Key technology development that vitally changed the way computers operate, resulting in increasingly smaller, cheaper, more powerful, efficient and reliable devices distinguished the generation of the computer. This division of computer according to the development period, memory, processing speed, efficiency, storage etc. is called computer generation. There are five computer generations:
First Generation (1946-1958)
Vacuum tubes were used for first generation computers for circuitry and magnetic drums for memory. They were huge and expensive to operate. Due to the consumption of great deal of electricity, it generated a lot of heat that often caused malfunctioning in the system. Example: ENIAC, UNIVAC, MARK-1.
Features:
- They used vacuum tubes/valves as their main electronic components.
- Storage capacity was limited to 1 KB to 4 KB.
- They used machine level language for programming.
- Processing speed was in a millisecond.
- They used the magnetic drum for primary memory.
Drawbacks:
- Difficult in maintenance.
- No facility of linking program.
- Difficult for logical programming.
Second Generation (1959-1964)
The transistors invented in 1947, which was not seen as extensive use, replaced vacuum tubes. The transistor was far superior to the vacuum tube that made computers become smaller, faster, cheaper, more energy-efficient and more reliable than the first generation computers. Example: IBM 1401, UNIVAC-II, IBM 1620.
Features:
- They used transistors in place of vacuum tubes. 1 transistor was equivalent to 1000 vacuum tubes.
- The speed of processing was increased to the microsecond.
- They used the magnetic core as primary memory and magnetic tapes as auxiliary memory.
- They were much smaller and more reliable.
- They used assembly language for programming.
Third generation (1965-1974)
The development of the Integrated Circuit (IC) was the major turning point of the third generation computers. Transistors were made smaller and placed on silicon clips called semiconductors that drastically increased the speed and efficiency of computers. It was called integrated Circuit. Example: IBM 360, PDP-8, etc.
Features:
- Integrated Circuit (IC) replaced transistors. 1 IC was equivalent to 100 transistors.
- Processing speed was increased to the nanosecond.
- Semiconductor memory was used instead of magnetic core memory.
- They used high-level language for programming.
- They were smaller, more efficient and more reliable.
Fourth Generation (1975-1990)
The development of microprocessor gave rise to the fourth generation of computers. A microprocessor has thousands of integrated circuits builds onto a single silicon clip. The Intel 4004 chips, developed in 1971 is the first microprocessor.
Features:
- The microprocessor is used in place of transistors. Very Large Scale integration (VLSI) containing hundreds of thousands of transistors on a chip and LSIs(Large Scale Integration) containing thousand of transistors in a chip made the microprocessor.
- The speed of processing is increased to Picosecond. Billions of instructions could be processed in a second.
- They are very user-friendly computers which use many high-level languages for programming
Fifth Generation Computer (1991-Personal and beyond)
The fifth generation computers are based on Artificial Intelligence (AI) and are still in development. After 90s computers that support Voice Recognition System (VRS) have been developed.
Features:
- These computers will use parallel processor made from superconductors Gallium Arsenide (GaAs)/biochip.
- They will possess Artificial Intelligence (AI).
- They will be able to feed input in the natural language.
Artificial Intelligence (AI)
It is the biotechnology, which will be used in the fifth generation computer. A computer having AI will be able to understand natural language, think and make decisions.
Lesson
Generation of Computer
Subject
Computer
Grade
Grade 8
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