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COMPUTER Class 6 REVISION Chap 1- Categories of Computer and Computer Languages

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COMPUTER Class 6 REVISION Chap 1- Categories of Computer and Computer Languages COMPUTER Class 6 REVISION Chap 1- Categories of computer and computer languages ANSWER THE FOLLOWING: 1. What are mobile computers? Give two examples. Mobile computers are the smallest computers designed to be carried around by users. Two examples are tablets and smartphones. 2. How are microcomputers different from mainframes? Microcomputers are single-user computer, whereas mainframes are multi-user computers. Microcomputers are comparatively smaller than mainframes. 3. What are the three types of computer languages? Following are the three types of computer languages: a. Machine language (low-level language) b. Assembly language (middle-level language) c. High-level language (fourth generation language) 4. Write the names of five high-level programming languages. Following are the names of 5 high-level programming languages: a. Java b. Python c. C d. C++ e. Visual Basic 5. Write any two points about machine language. Following are the two points about machine language: a. Each instruction is written in the form of a string of 0s and 1s. b. It is directly understood by the computer. 6.How would you classify computers based on their size? Based on size, we can classify computers as follows: a. Mobile Computers b. Microcomputers c. Minicomputers d. Mainframes e. Supercomputers 7.Give two examples of minicomputers. Following are the three examples of minicomputers: a. CDC 160A b. MicroVAX 3100 8.Give three examples of mainframes. Following are the three examples of mainframes: a. IBM 4381 b. DEC 10 c. NEC 610 9.What are supercomputers? Supercomputers are the biggest and most powerful computers. They often occupy whole rooms.They work on the concept of parallel processing.The speed of supercomputers are measured in FLOPS. 10.Give two examples of supercomputers. Following are the two examples of supercomputers: a. IBM’s Sequoia b. Fujitsu’s K Computer 11.Write three features of the fourth generation language. Following are the three features of the fourth generation language: a. They use English words and phrases. b. Programmer friendly. c. They use icons, graphical interface, and symbolic representations. 12.What are compilers? A compiler is a program that translates all instructions of a high-level language source program into a machine language object program at once. 13. Name the different types of computers. The four different types of computers are as follows: - a. Mainframe computer. b. Mini computer. c. Micro computer. d. Super computer. 14. Write two features of Mini Computer. The two features of mini computer are as follows: - a. Mini computer has less memory capacity than a Mainframe computer. b. Micro computer is cheaper and user friendly. 15. Name the fields where the super computers are used. The fields where the super computers can be used are Nuclear research laboratories, Weather Forecasting, Weapon Designing and Oil exploration. 16. What is a computer language? A computer language is a language in which a computer program writes the instructions for a computer to execute, is called a programming language. A programming language is necessary to communicate with the computer. 17. What do you mean by low level language? Low Level Language (LLL) is also known as machine level language or machine language. It is a language only understood by a computer machine. The code in LLL is written in 0 or 1 which is known as binary code. The program written in LLL is a data using binary codes which a computer can understand. 18. What do you mean by high level language? High Level language (HLL) is also know as third generation language. HLL is a language which uses English alphabets, numbers and symbols for writing the program. The program written in HLL needs to be converted into machine language using translators. 19. What is a machine language? Machine language is also known as machine level language or low level language. It is a language only understood by a computer machine. The code in LLL is written in 0 or 1 which is known as binary code. The program written in LLL is a data using binary codes which a computer can understand. 20. What is an assembler? An assembler is a translator program that converts the program written in assembly language into machine language so that the computer can understand the code. FULL FORMS: 1. PMP – Portable Media Player 2. PDA – Personal Data Assistant 3. C-DAC – Centre for Development of Advanced Computing .
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