psuedocode

Question 1

comments

Answer 1

//

Question 2

data types

Answer 2

integer
real
char
string
boolean
date

Question 3

declaring variable

Answer 3

DECLARE <variable> : <datatype></datatype></variable>

Question 4

constants

Answer 4

CONSTANT <identifier> = <value></value></identifier>

Question 5

assignment

Answer 5

<identifier> <— <value>
</value></identifier>

Question 6

declaring arrays

Answer 6

1D
DECLARE <identifier> : ARRAY [lower:upper] OF <datatype>
2D
DECLARE <identifier> : ARRAY [lower1:upper1, lower2:upper2] OF <datatype></datatype></identifier></datatype></identifier>

Question 7

user defined data types

Answer 7

TYPE <identifier> = (value1, 2, 3…)
eg TYPE season = (spring, summer, autumn…)</identifier>

Question 8

non composite data type - pointer

Answer 8

TYPE IntPointer = ^INTEGER

Question 9

composite data type

Answer 9

TYPE <identifier>
DECLARE <identifier> : <datatype>
DECLARE <identifier> : <datatype>
END TYPE</datatype></identifier></datatype></identifier></identifier>

Question 10

input/ output

Answer 10

INPUT <identifier>
OUTPUT <value></value></identifier>

Question 11

arithmetic operations

Answer 11

+ - * / // %

Question 12

relational operations

Answer 12

<
<=
=
<>

Question 13

logic operators

Answer 13

AND OR NOT NOR XOR NAND

Question 14

if

Answer 14

IF <condition> THEN
<statement>
ELSE
<statement>
END IF</statement></statement></condition>

Question 15

CASE

Answer 15

CASE OF <identifier>
1 : <statement>
2 : <statement>
…
OTHERWISE <statement>
END CASE</statement></statement></statement></identifier>

Question 16

count controlled loop

Answer 16

FOR i <- <value> TO <value></value></value>

<statement>
NEXT i
</statement>

Question 17

condition controlled

Answer 17

REPEAT

<statement>
UNTIL <condition>

WHILE <condition>
<statement>
END WHILE
</statement></condition></condition></statement>

Question 18

procedures

Answer 18

PROCEDURE <identifier> (parameters : <data>)</data></identifier>

<statement>
END PROCEDURE

CALL <identifier> (parameters)
</identifier></statement>

Question 19

function

Answer 19

FUNCTION <identifier> (parameters : <data>) RETURNS <data></data></data></identifier>

<statement>
END FUNCTION
</statement>

Question 20

opening text files

Answer 20

OPEN FILE <identifier> FOR <mode>
modes are:
READ
WRITE
APPEND</mode></identifier>

Question 21

reading / writing fike

Answer 21

READ FILE <identifier>, <variable>
WRITE FILE <identifier>, <data></data></identifier></variable></identifier>

Question 22

end of file

Answer 22

EOF <identifier>
returns true if end and false if not</identifier>

Question 23

closing file

Answer 23

CLOSE FILE <identifier></identifier>

Question 24

moving pointer to a given location

Answer 24

SEEK< identifier>, <address>

Question 25

reads data from the record at the pointer

Answer 25

GET RECORD <identifier>, <variable></variable></identifier>

Question 26

inserting data into the record at the pointer

Answer 26

PUT RECORD <identifier>, <variable></variable></identifier>