9th Class Computer

Computer 9th Class

FILL IN THE BLANKS

Complete the following blanks with suitable answers:

1. The processing unit responsible for mathematical computation is called __________.

2. A kilobyte is equal to __________ bytes.

3. The electronic technology used in second generation computer system was __________.

4. A __________ translates program language instructions one at a time.

5. Output on the screen is called __________ whereas output by the printer on paper is called __________.

6. IBM stands for __________.

7. In BASIC, function key F4 is used for __________.

8. Machine language is a __________ level language.

9. GOTO statement is known as __________ statement.

10. __________ is a set of well-defined instructions.

11. The diagrammatic representation of logic is called __________.

12. A computer output taken on paper is called the __________ copy.

13. Monitors and printers are __________ devices.

14. Mathematical calculation is carried out by __________ of C.P.U.

15. The use of _________ was a marked feature of the generation of computers.

16. __________ command branches unconditionally to a specified line number.

17. Vacuum tubes were used in the __________ generation of computers.

18. Charles Babbage invented __________.

19. __________ statement in DOS is used to delete a file from the disk.

20. The volatile part of internal memory is called __________.

21. __________ is the set of instructions that tells the computers what to do.

22. A kilobyte is equal to __________ bytes.

23. Each statement or command is preceded by a line number in the __________ mode.

24. The keyboard and the mouse are __________ devices.

25. A diagram to plan a program is called __________.

Url: http://www.pakchoicez.com | http://www.smsbundle.com | http://www.jazzbudget.com Page - 1

http://www.jazzbudget.com/

http://www.smsbundle.com/

http://www.pakchoicez.com/

26. Data processing consists of three basic steps __________, __________ and __________.

27. __________ memory is that type of memory which does not lose the information stored when the power is turned off.

28. Every BASIC statement consists of a __________, keyword and the parameter.

29. __________ statement is used to transmit numeric or string output data from the computer and displays it on the screen.

30. We use __________ to convert the digital data into analog data.

31. The introduction of __________ brought the computer age into the third generation.

32. In computer terms 64k means __________ bytes or characters.

33. A software developed for specific purpose is called an __________ software.

34. Data processing devices are __________, __________, and __________.

35. In first generation __________ symbolic languages were used.

36. Disk oriented computers were introduced in __________ generation.

37. A micro second is equivalent to 1/__________.

38. PC stands for __________.

39. The term VLSI is used for __________.

40. Humanware is an alternative word for __________.

41. A firmware is necessary to __________ the computer.

42. __________ computers have both analog and digital methods of processing information.

43. The introduction of __________ brought the computer age into fourth generation.

44. The physical units making up a computer system are known as computer __________.

45. Charless Babbage is called the father of __________.

46. EDP stands for __________.

47. A __________ data processing system consists of various input and output devices connected with an electronic computer.

48. A microprocessor chip consists of three basic parts __________, __________ and __________.

49. A blinking point on the CRT, whose position can be controlled by the operator of the computer, is known as __________.

50. The very small bulbs on the keyboard or CPU are called __________.

51. In BASIC function key F2 is used to __________.

52. ASCII stands for __________.





53. A __________ is used to play games.

54. __________ and __________ are the latest input devices.

55. CRT stands for __________.

56. SVGA stands for __________.

57. __________ and __________ are impact printers.

58. __________ and __________ are non-impact printers.

59. A small spot of light displayed on the screen is called __________.

60. The devices through which we enter data into the computer are known as __________ devices.

61. A blinking cell on the display screen is known as __________.

62. __________ and __________ are the only figures used in binary number system.

63. DOS is an acronym for __________.

64. __________ data represents only numbers.

65. There are three types of languages translators: __________, __________ and __________.

66. A keyboard has a number of keys, but usually it has __________ keys.

67. Types of data are __________, __________ and __________.

68. Types of numeric data are __________ and __________.

69. Types of numerical real data are __________ and __________.

70. Machine language programs are usually written in __________ number system.

71. A program translated by the compiler is called __________.

72. Destructive programs are classified as __________, __________ and __________.

73. BASIC is an acronym for __________.

74. __________ is the lowest limit of line number allowed in BASIC program.

75. In BASIC each statement must begin with a __________.

76. __________ statement clears VDU.

77. The __________ statement accepts data in execution mode.

78. Before a value is assigned to a numeric variable, its value is assumed to be __________.

79. __________ command produces the source statements of current program, available in memory, on CRT.

80. __________ and __________ statements may be used to define the beginning and the end of a loop.

81. __________ allows to write more than one statement on a line.





82. BASIC was developed at __________ by __________ and __________.

83. __________ command automatically generates line numbers.

84. BASIC program is a collection of __________.

85. The purpose of __________ command is to re-sequence the line numbers of the program.

86. In the year __________ the __________ standardized an essential subset of BASIC, in order to promote uniformity from one version to another.

87. The maximum line number in BASIC is __________.

88. The data can be distributed over __________ statements within a program.

89. There can be up to __________ characters in a single program line.

90. Numeric data can be expressed in two ways: __________ and __________.

91. The use of __________ can alter the normal hierarchy of calculation operations.

92. BASIC statements are __________ and __________.

93. REM is used to __________.

94. __________ is used to reuse the data given in __________ statement (s).

95. Semicolon is used to suppress __________ in __________ statement.

96. When a variable name appears in a __________ statement, the contents of location are displayed.

97. __________ is used to access an individual element from an array.

98. The __________ statement is used to assign a numerical or string value to a variable.

99. __________ command prints the source statement of current program available in the memory, on the printer.

100. A __________ is a quantity that may change during the execution of program.

101. __________ and __________ statements are used to execute a series of statements in a loop as long as given condition is true.

102. __________ statement is required to create arrays.

103. The purpose of __________ is to part from usual execution in the order given by the line number.

104. __________ notation is used to represent very very small or very very large numbers.

105. Remarks statements are only shown up when you __________ a program.

106. RABs must be in ascending order in a __________ statement.

107. A set of values arranged in regular order is called __________.

108. The __________ statement in BASIC program has the highest statement number (logically).

109. The symbols <, > and = if used in a program are called __________ operators.





110. A pictorial representation of the sequence of steps of computation for solving a problem is called __________.

111. __________ command returns control to operating system.

112. __________ statement is used to transmit numeric or string output data from the computer and display it on the screen.

113. The LINE statement is used to draw a straight line in __________ screen mode.

114. __________ is simply paper work and documentation involved with the operation of computer.

115. __________ software is supplied by the computer manufacture.

116. __________ software is the set of instructions that are developed by the computer user.

117. A computer __________ is a set of instructions sequenced in a logical manner to achieve a definite task.

118. The set of information that are fed to the computer is called __________.

119. __________ is the person who designs and writes the computer program.

120. __________ level language is nearest to the human language.

121. Assembly language is __________ level language.

122. Two classes of High level language are__________ language and __________ language.

123. A __________ is a way of communicating with the computer.

124. Internal Command is a part of __________.

125. CLS is an __________ command.

126. FORMAT is an __________ command.

127. The information stored in computer is in __________ state.

128. The bi-stable state ON is known as the state of __________.

129. The bi-stable state OFF is known as the state of __________.

130. A __________ represent a meaningful information like a number, an alphabet or any special character.

131. The computer stores an extra bit, called __________ bit.

132. The traditional five stages in development of source program are __________, __________, __________, __________ and __________.

133. An algorithm gives the __________ of solution of a problem.

134. A flow chart depicts the __________ of solution of a given program.

135. Types of flowchart are __________ and __________.

136. The __________ statement is used to reserve storage for an array.

137. DIM is usually placed at the __________ of the program.





138. A$(5) will reserve __________ spaces in memory.

139. Table is a __________ array.

MATCHING OF COLUMNS

Match the correct answer from Column A to Column B:

Exercise 1

Column A Column B A set of instruction for

computer Byte

Volatile Memory Program Grouping of Bits RAM Charles Babbage Machine Language The language that

computer can understand Analytical Engine

Exercise 2

Column A Column B Parallelogram

Used to connect page Diamond

Process Box Connector Used to connect symbols Rectangle Used for decision Flow Lines I/O Box

Exercise 3

Column A Column B Converts high level

language into machine language

Backing Storage

The manipulation of data into a more useful form

Vacuum Tube

Permanent storage outside the computer

DIR

An electrical component which was used in the first generation of computers.

Data Processing

An internal DOS command Compiler

Exercise 4

Column A Column B Vacuum Tube First Generation Integrated Circuit Second Generation Artificial Intelligence Third Generation Transistors Fourth Generation





Physical parts of computer Fifth Generation Large Scale Integrated

Circuit Hardware

Exercise 5

Column A Column B Result

Flowchart Set of instructions

Final output The process of

understanding the problem Diamond shape Algorithm

Program Manual Documentation of program Condition box

Step wise solution Block diagram

Problem analysis

Exercise 6

Column A Column B High level language BASIC 222 Ok Arithmetic expression Integer value BASIC prompt A = 111 + 111

MULTIPLE CHOICE QUESTIONS

Choose any one of the following correct answers:

1. __________ is a category of computer hardware.

(Input, Output, Storage, Processing, all of the above)

2. __________ is an important component of microcomputer system.

(Kilobyte, Microprocessor, Megabyte, Byte, None of the above)

3. __________ is not found in C.P.U.

(ALU, Control Unit, RAM, Processing Register)

4. __________ is a type of impact printers.

(Laser, Thermal, Dot-Matrix, Inkjet)

5. __________ program design technique shows program logic.

(Flow chart, Logical Operation, Computer, None of the above)Url: http://www.pakchoicez.com | http://www.smsbundle.com | http://www.jazzbudget.com Page - 7




6. __________ is used as counter in BASIC programs.

(A = A+1, A<1, A or 1, None of the above)

7. __________ characteristic is applied to the third generation of computers.

(Integrated Circuit, Transistor, Vacuum Tubes, All of the above)

8. The most important characteristic of ROM is __________.

(It performs mathematical calculation, it is volatile, it is non – volatile, None of the above)

9. __________ statement is used to transfer the control of program conditionally.

(GOTO, ON GOTO, END, All of the above)

10. Disk operating system is abbreviated as __________.

(DOS, DS, OS, None of above)

11. __________ is an example of integer data.

(HASAN, D-143, 143, all of the above)

12. High level languages were designed in __________.

(Laboratory, Third generation, Computers, New York)

13. __________ is a high level language.

(BASIC, BESIK, BACIK, BESIC)

14. Binary number system has __________.

(Ten digits (0,9), Three digits (-1,0,1), One digit (1), Two digits (0,1))

15. LET statement is __________.

(Optional statement, Assigning statement, Used for expression assignment, all of the above)

16. DATA statement is __________.

(Executable statement, Non-executable statement, Optional statement, None of the above)

17. BASIC stands for __________.

(Basic All-purpose Symbolic Instructon Code, Beginners Assembly Symbols Instruction Code, Basic All Standards In COBOL, Beginners All-purpose Symbolic Instruction Code)

18. When using READ statement, it must to provide __________.

(PRINT statement, RESTORE statement, INPUT statement, None of above)

19. ANSI stands for __________.

(All New Small Integration, A National Small Institute, American National Standard Institute, None of the above)





20. Sign of exclamation is __________.

(!, :, I, %)

21. The example of random access storage media is __________.

(Floppy disk drive, Hard disk drive, Tape unit, 51/4’’ floppy disk)

22. The type of memory whose contents can not be changed is __________.

(ROM, RAM, Cache, EAPROM)

23. The command to see the contents of a disk is __________.

(DIR, CD, MD, TYPE)

24. DISKCOPY command can format the destination disk __________.

(Before copying, after copying, can not format, format while copying)

25. TYPE command is used to __________.

(To see the contents of a file, Chage the type of a file, make a sub directory, Type a file in the computer)

26. Each statement of BASIC must have a __________.

(Function, Statement number, Program name, File name)

27. The command to create a sub-directory is __________.

(DIR, CD, MD, APPEND)

28. TAB () function is used to __________.

(Print, Display, Print and Display, None of the above)

CONVERSION OF ALGEBRAIC EXPRESSIONS TO BASIC EXPRESSIONS

Convert the following algebraic expressions into BASIC Expressions:





1. a2 + 2ab + b2

2. yx

3. b a

b - a

4. (a – b)1/2

5. [2x2 – 4y2]2

6. ac4b b- x 2

7. Y = a2 + 2ab + b2

8. A = a3 – 3a2b + 3ab2 – b3

9. (a + b) (a – b)

10. 4a / 2a

11. b a

y x

12. 4x2 – y3

13. 4a – 3b

14. a4b2 – 40a2 ¸ 3ab2

15. 3xy) - (2x - y) -(x 2

16. m2l lmK232 ¸

17.

5-u )t

s (R

18.

1-n )150

R J(L

19. 2a

4ac - b2a b

22

20.

5mn 4

1 L





21. 4

23

u

v- 6u W 40 T

22. 2

33

6y

2xy

xy

y5x

23. d

c

b

a

24.

1)y

x (2x n

25. (a + b)(a3 + b3) ¸ (a2 + b2)

26. 2

L k 2

N

(M)

100

L K

¸

27. (a1 + a2 + a3 + a4 + a5)1¸2

28. T + T –3T + T

29. 13C + 12C + 11C + 10C + 9C

30. mn

4

1 L

31. 25d

7cd

19ab

6ab

32. a2b

33.

5-a2 )b

a (a

34. 2a3b + 3b3c2 – 4a2b2

35. (a – b)(a2 – b2) ¸ (a3 + b3)

36. (2x + y)(3z – 4w)

37.

1 - m )b

a (3

38.

5

x

5





39. 4x2y – 3xy + 7yz3

40. x

b

a

41. (2x2 + 4y3 + 2z3)

42. 22 yx

43.

5

)y -(x

5

44.

b - a )y

x (3

CONVERSION OF BINARY NUMBERS INTO THEIR DECIMAL EQUIVALENTS

Convert the following binary numbers into their decimal equivalents:





1. 10111

2. 111

3. 101001

4. 100101

5. 101011

6. 0011

7. 1100

8. 1001

9. 1111

10. 10101

11. 010101

12. 000011

13. 1111111

14. 100011

15. 100

16. 10

17. 11101011

18. 000001

19. 101110

20. 0001000

21. 111101

22. 0101011

23. 11111

24. 10101101

25. 1100110

26. 1010101

27. 101

28. 0011101





29. 1100001

30. 110011

31. 111111

32. 101100110

33. 1111010010

34. 1110001

35. 11011

36. 10011

37. 1100110

38. 111101

39. 00011

40. 010111

41. 1110011

42. 10001001

43. 0100111001

44. 0101011

45. 0000

46. 11100111

47. 100011

48. 1001110

49. 101101

50. 10000000000

51. 10100

CONVERSION OF DECIMAL NUMBERS INTO THEIR BINARY EQUIVALENTS

Convert the following decimal numbers into their binary equivalents:





1. 211

2. 222

3. 333

4. 444

5. 0014

6. 1024

7. 100

8. 786

9. 909

10. 898

11. 386

12. 221

13. 116

14. 8

15. 19

16. 0418

17. 29

18. 333

19. 936

20. 0410

21. 312

22. 217

23. 111

24. 826

25. 999

26. 995

27. 894

28. 402





29. 25

30. 408

31. 1024

32. 001122

33. 801

34. 312

35. 235

36. 211

37. 765

38. 111

39. 0100

40. 26

41. 0

42. 55555

43. 6666

44. 3368

45. 765

46. 1750

47. 826

48. 12

49. 100

50. 1023

51. 4587

52. 69523

53. 8776

54. 328

55. 496

56. 507

OUTPUT OF BASIC PROGRAMS





Write down the output of the following BASIC Programs:

1. 10 READ J, K, L

20 FOR I = J TO K STEP L

30 PRINT I

40 NEXT I

50 DATA 2, 10, 3

60 END

2. 10 CLS

20 FOR I = 1 TO 10

30 PRINT I, “MY NAME”

40 NEXT I

50 END

3. 10 READ A, B, C

20 FOR I = A TO B STEP C

30 PRINT I

40 NEXT I

50 DATA 2, 10, 2

60 END

4. 10 CLS

20 INPUT U, V

30 LET W = U + V

40 LET Y = W * V

50 LET Z = Y/U

60 PRINT U, V

70 PRINT W, Y, Z





80 END

5. 10 CLS

20 LET R = -2

30 FOR T = 2 TO 15

40 LET R = R + 1

50 PRINT R

60 NEXT T

70 END

6. 10 A = 5: B = 13: C = 931

20 C = 5 * A Ù B + B Ù 2/2

30 PRINT C

40 END

7. 10 FOR I = 1 TO 100 STEP 10

20 PRINT I

30 IF I = 10 THEN I = 100

40 NEXT I

50 END

8. 10 CLS

20 N$ = “ABDUS-SAMAD”

30 N1$ = LEFT$ (N$, 1)

40 N2$ = MID$ (N$, 5, 1)

50 N3$ = MID$ (N$, 8, 1)

60 N4$ = RIGHT$ (N$, 1)

70 NN$ = N1$ + N2$ + N3$ + N4$

80 PRINT NN$





90 END

9. 10 X$ = “DATA – SOFT”

20 FOR I = 1 TO 9

30 Y$ = LEFT$ (X$, I)

40 PRINT Y$

50 NEXT I

60 END

10. 10 LET A = 11

20 WHILE A < 99

30 LET A = A + 11

40 PRINT A

50 WEND

60 END

11. 10 LET A = 0

20 LET B = 1

30 LET C = A + B

40 PRINT C

50 LET A = B

60 LET B = C

70 IF C < 21 THEN GOTO 30

80 END

12. 10 CLS

20 FOR I = 1 TO 10

30 FOR J = 1 TO I

40 PRINT I;





50 NEXT J

60 PRINT

70 NEXT I

80 END

13. 10 FOR A = 10 TO 0 STEP –2.5

20 PRINT A

30 LET S = S + A

40 NEXT A

50 ? S

60 END

14. 10 CLS

20 LET K = -1

30 FOR L = 1 TO 20

40 LET K = K + 2

50 PRINT K;

60 NEXT L

70 END

15. 10 ? “This is first line”

20 ? “It is second row”

30 ? “What is it?”

40 ? “Remember where it should be!”

16. 10 CLS

20 FOR I = 1 TO 8

30 PRINT X

40 PRINT I





50 NEXT I

60 END

17. 10 CLS

20 A = A + 1

30 B = A Ù 2

40 C = A Ù 3

50 D = A Ù 4

60 PRINT A, B, C, D

70 IF A = 6 THEN END ELSE GOTO 20

18. 10 LET K = -1

20 FOR I = 1 TO 20

30 LET K = K + I

40 PRINT K

50 NEXT I

19. 10 FOR I = 1 TO 10

20 PRINT I, “PAKISTAN ZINDABAD”

30 NEXT I

40 END

20. 10 FOR X = 0 TO 20 STEP 2

20 SUM = SUM + X

30 PRINT X, SUM

40 NEXT X

21. 10 FOR X = 6 TO 18 STEP 2

20 LET A = X- 4





30 IF A = 10 THEN 60

40 PRINT A, X

50 GOTO 70

60 PRINT “X=”;X

70 NEXT X

80 END

Remove the errors in the following BASIC Statements, if any:

1. 5 REEM ** MARKS SHEET **

2. 5.5 INPUT TAB (90) “NAME” : N$

3. –65 PRINT “MY SCHOOL”

4. 100S$ = MID$(A$5)

5. 99 READ 4, 5, SIX: DATA A, B, C$

6. 25 GOSUB R

7. 10 IF A = 10 TO 50 THEN END

8. 15 LET X “=” A “*” B

9. 80 FOR I = 20 TO 10 STEP –2

10. 18 LOCATE (5, 10): PRINT “ME”

11. 10 LET Z = “PAKISTAN”

12. 06 PRINT RIGHT (8, A$)

13. 20 IF X $ = 6 THEN : GOTO 120

14. 41 DATA 18, CLASS, SCHOOL: READ N, P, C

15. 5.5 INPUT “YOU NAME” N

16. RAM TO CALCULATE NUMBERS

17. –8 ON GOTO CH 100, 200, 300

18. 66 A$ = 5 TO 1 STEP –1

19. PRINT “OK”: TAB (10)

20. 50.5 PRIT “MY SCHOOL”

21. 38 REED A: DATA 40





22. 141 RAM “PRACTICAL EXAM”

23. 80 FOR R = IT 0010: NEXTR

24. 100 PRINT TAB (10); PAKISTAN

25. –32C= 10 TO 20 STEP –2

26. 53 READ A$; B; C$ : DATA AEROPLANE ; 200; CARD

27. 200 INPUT; “WHAT IS YOU NAME?”; A$

28. 10IF A = 100 THEN GOTO R

29. 20 REEM ABC

30. 10 LET A = “Karachi City”

31. 06 PRINT RIGHT (A$, 8)

32. 20 IF X$ = 6 THEN GOTO 120

33. 41 DATA. 18, page, Cat: READ N; P$; C$

34. 50.5 INPUT “What is your age?” A

35. 66 PRINT TAB (2): “ALL”; TAB (7); “The”; TAB (12) “Best”

36. 32 SCREEN 86

37. 706 LINE (40, 80) (300, 150); 3

38. 25 LOCATE 12.30: PRINT “Friendship”

39. 14 PRINT MID$ (A$, 10, 3)

40. 10 For X = 1 TO 5 STEP –1

20 J=X = 10

30 IF J = 80 THEN 100

40 NEXT Y

50 END

41. 10 INPUT

20 B – C = D

30 B = A * 2

40 PRINT E

50 END

42. 10 CLS





20 FOR I = 1 TO 10

30 LET A = 1

40 ? A

60 ? “This is the end of program.”

70 END

43. 10 INPUT A.B

20 LET A = A * 5

30 LET B = B * 2

40 TAB 20, 30: PRINT A;B

50 FINISH

44. 10 LOCATE 75, 10

20 PRINTER “Am I wrong?”;

30 LET T = 25 X 4 + 60

40 PRINTER T

50 END

45. 10 LET A = “KARACHI CITY”

46. 06 PRINT RIGHT (A$, 8)

47. 20 IF X$ = 6 THEN GOTO 120

48. 41 DTA 18, PAGE, CAT: READ N; P$; C$

49. 50.5 INPUT “WHAT IS YOU AGE?” A

50. 66 PRINT TAB (2); “ALI”; TAB (7); “THE” ; TAB (12); “BEST”

51. 32 SCREEN 86]

52. 70.6 LINE (40, 80) – (300 – 150) ;3

53. 25 LOCATE 12, 30 : PRINT “FRIENDSHIP”

54. 14 PRINT MID$ (A$, 10, 3)

55. 10 GOTO 60, 70

56. 20 FOR I=1 10 STEP 2

57. 14 S$ = PAKISTAN

58. 26 READ P$, X: DATA THRE, 3





59. 65 PRINT A = A, B, C

60. 121 IF X = 20: THEN GOTO 20

61. 70 LET X = LAE A + Y

62. 20 “INPUT ENTER YOU NAME”;N

63. 46.5 IF C$= COMPUTER THEN END

64. –25 C$ = A4 + B + C

65. 10 CLS, X = X + 1

66. 55 Z$ = CHR (29)

67. 129 READ 50, 100 :DATA A, B

68. 30 FOR 50 = A TO B

69. 40 GOTO CLS

70. 66 IF X$ = 50THEN GOTO A$ ELSE GOTO 30

71. 55 REM REM

72. 100 LET P$ = X

73. 123 LOCATE 35, 90 : PRINT “PAKISTAN”

74. 999 PRINT TAB (90) STRING$ (120, “-“

75. 50 N$ = RIGHT$ (C$, 3)

76. 7 A = LET M +1

77. 10 LPRINT = A, B, CAT

78. AN INPUT “STUDENT ROLL NUMBER “;SRN

79. 8 SCREEN: COLOUR A, B

80. 41 C = 10 TO 20 STEP 2

81. 100 GOTO 4

82. 265 IF W$ = “YES” THEN STOP

83. 2C LINE (20, 50) – (300, 150) ,2

84. PRINT A$ , B$, C

85. 10 PRINT 5(2 + 7)

86. 20 PRINT 8x8

87. 20 PRINT X = 15





88. 20 PRINT NAME IS =; N$

89. 30 PRINT: PRINT

90. PRINT “PAKISTAN ZINDABAD”

91. 10 PRINT “TEMPERATURE =; T; C

92. 10 INPUT ‘CAPITAL IS =’ C$

93. 30 INPUT ENTER VALUES OF A, B AND C

94. 50 AND “PROGRAM IS FINISH”

TRUE AND FALSE

Write True or False for the following sentences:

1. The central processing Unit (C.P.U) is the brain of computer system.

2. Logical errors are caused by faulty program designs.

3. Diamond-shaped symbol in program flow chart is used for decision points.

4. Dot Matix printers are non-impact printers.

5. Data stored in ROM can be changed.

6. Impact printers work by hitting an inked ribbon against the paper,

7. High level language is used to convert the source program into object program.

8. Mark-1 is the first Digital Computer.

9. ROM stores data or program permanently and RAM stores data or program temporarily.

10. A set of bits considered as a unit, normally consisting of 8 bits is known as Byte.

11. Abacus is an early Electro-Mechanical device for counting.

12. Software comprehends computers programming languages; translates application programs and operating systems programs.

13. Mark-I is the first digital computer.

14. First microprocessor chip INTEL 4004 was developed in 1990.

15. The heavy computers are called “Laptops’.

16. A digital computer can work at high speed.

17. Registers are the part of ROM.

18. RAM stands for Read Access Memory.

19. Convention memory and extended memory almost work at the same speed.Url: http://www.pakchoicez.com | http://www.smsbundle.com | http://www.jazzbudget.com Page - 26




20. EPROM is a special type of RAM.

21. The main memory of CPU is the place where the computer programs and data is stored permanently.

22. RAM is a volatile memory for temporary storage of data or programs.

23. Data processing is the manipulation of data into more useful form.

24. EDP stands for Expanded Data Processing Cycle.

25. An input device receives data from computer.

26. Mouse is an input device.

27. It is possible to display several colors on a monochrome monitor.

28. A printer does not provide a soft copy of output.

29. Impact printers can produce carbon copies.

30. LASER does not stands for Low Amplification by Stimulated Emission of Rays.

31. Keyboard is a backing storage device.

32. Magnetic tape is the fastest media for data storage.

33. There are several tracks on a floppy disk, which are further divided into sectors.

34. 2KB = 2024 bytes.

35. Impact printer work by hitting an inked ribbon against the paper.

36. Backing storage devices are the permanent storage outside the main memory.

37. A mouse is called pointing device.

38. Micro floppy disks were developed before mini floppy disks.

39. 90 IF X$ = “DATA” THEN PRINT “SOFT” is a valid statement.

40. The FOR statement must not be used with NEXT.

41. There is no difference between A1 and A(1) as variable names.

42. 50 PRINT TAB (30); S$; TAB (10); Y$ prints S$ and Y$ on same line.

43. DATA statement is used with INPUT statement.

44. The purpose of GOTO statement is to transfer control.

45. 20 IF A$ = 1234 THEN 50 ELSE 80 is a valid line.

46. When the command AUTO1, 10 is given, then the first line number will be 10.

47. INPUT statement is often useful when no interaction between computer and user is required.

48. It makes a sense to use the condition A = “B” in a IF… Then statement.





49. Formula A) U(PK

T

can be written as T = K/U*(P + A).

50. DATA statement is optional with READ statement.

51. BASIC is a difficult language.

52. User defined functions do not act like library function.

53. There is nothing wrong in NO ERROR GOTO 100 statement.

54. CLS statement can be used to clear half of the screen.

55. The ¸ symbol is used for division in BASIC programs.

56. A subroutine may also be called from with in another subroutine.

57. Software comprehends computer-programming languages, translates application program and operating system programs.

58. Application software is prepared by computer manufacture.

59. Low level language is nearest to machine language.

60. COBOL stands for Commercial Business Oriented language.

61. FORTRAN is an interpreter language.

62. Assembler translates the high level language into machine language.

63. The interpreter is a program that serves the same purpose as des the compiler.

64. Compiler translates the high level language into low level language.

65. RPG stands for Report Program Generator.

66. FORTRAN was basically developed for scientific and engineering data processing purpose.

67. Statement number are must in BASIC program. Since they are required to establish a sequence in which the instructions are to be executed.

68. BASIC uses statement number as address for the conditional and unconditional branching instruction.

69. REM statement cannot be accessed via branching instructions.

70. REM statement should be the first statement in a program.

71. CLS statement cleans the disk.

72. PRINT statement assigns value before printing.

73. PRINT statement prints only values of the variables.

74. LOAD command load a program from the disk.

75. DELETE command delete a line from the disk





76. SAVE command is used to store a program in a computer memory.

77. List command displays the contents of the disk on a screen.

78. GOTO statement unconditionally transfers the program control to the new location.

79. Branching if IF – THEN takes place only if the condition specified in IF is false.

80. In nested loops, the computer reaches the outer most loop before reaching the inner most loop. Therefore, the outer loop is executed completely before taking up the execution of the next inner loop.

81. Line number after ON-GOTO must only be in ascending order other wise error conditions result.

82. One can have more than one NEXT statement for every FOR. However at least one NEXT for every FOR is mandatory.

83. A subroutine contains repetitively used statements. It can be accessed via a GOTO or a GOSUB statement.

84. The computed GOSUB statement is similar to compute GOTO. However, it calls to four subroutine at the maximum.

85. There can be many RETURN statements in a subroutine and they can be placed anywhere, even at the first line of the subroutine.

86. A subroutine may contain any number of RETURN statements. However the last statement must be a RETURN statement.

87. The first statement of the subroutine must be a REM statement.

88. DIM statement can be used to reserve memory space even below 10 spaces reserved implicitly.

89. Array can store only numeric values.

90. DIM statement, like RAM, is a non-executable instruction.

91. DIM statement should be placed before the array is called in the program.

92. Negative sign is allowed in a subscript.

93. A file is a collection of record.

94. A random file record can be read sequentially.

95. CLOSE statement only close the sequential file.

96. FIELD is a key word of BASIC language.

READ statement is used to read the record from a file.





Documents

9th Class Computer