የምዕራፍ ማስታወሻዎችና የመልመጃ ጥያቄዎች
በዚህ ገጽ ያለው ሁሉ ለ11ኛ ክፍል የየመረጃ ቴክኖሎጂ መፅሐፍ ምዕራፍ 6 ነው፦ ምዕራፉ የሚሸፍነው፣ አጭር ማስታወሻዎቹ፣ የመልመጃ ጥያቄዎች ከመልሶቻቸው ጋር፣ እና ቪዲዮ ባለበት የትምህርቱ ቪዲዮ።
በ11ኛ ክፍል የየመረጃ ቴክኖሎጂ ገጽ ላይ በዚህ ምዕራፍ ሥር የተመዘገቡት ካርዶች። አንድ በአንድ ይክፈቱ።
መቼ እንደሚጠቀሙበት
የፓይተን ተለዋዋጭ ስሞችን (variable names) ሲሰይሙና ህጋዊ መሆናቸውን ለማረጋገጥ ይጠቀሙበት።
ይጠንቀቁ
የመለያ ስም በቁጥር መጀመር አይችልም፣ እንደ & ወይም * ያሉ ልዩ ምልክቶችን መያዝ አይችልም፣ እንዲሁም እንደ while ወይም if ያሉ የተያዙ ቃላትን (keywords) መጠቀም አይቻልም።
ከGrade 11 Information Communication Technology፣ ከገጽ 132 ጀምሮ የተዘጋጀ፤ ከመውጣቱ በፊት ሁለት ጊዜ ተረጋግጧል
መቼ እንደሚጠቀሙበት
የፕሮግራም ሰዋሰዋዊ ህግ ጥሰቶችን ከተሳሳተ የውጤት ስሌት ለመለየት ይጠቀሙበት።
ይጠንቀቁ
ኢንተርፕሪተሮች የሲንታክስ ስህተትን በቀላሉ ለይተው ፕሮግራሙን የሚያቆሙ ሲሆን፣ የሎጂክ ስህተት ግን የስህተት መልእክት ስለማያሳይ በውጤቱ ትክክለኛነት ብቻ መለየት አለበት።
ከGrade 11 Information Communication Technology፣ ከገጽ 132 ጀምሮ የተዘጋጀ፤ ከመውጣቱ በፊት ሁለት ጊዜ ተረጋግጧል
መቼ እንደሚጠቀሙበት
በፓይተን ከኪቦርድ የቁጥር መረጃዎችን ከተጠቃሚ በሚቀበሉበት ጊዜ ይጠቀሙበት።
ይጠንቀቁ
የ input() ፈንክሽን መረጃን ሁልጊዜ በፅሁፍ (str) መልክ ስለሚመልስ፣ በ int() ወይም float() ወደ ቁጥር ሳይቀይሩ የሂሳብ ስሌት መስራት የስህተት መልእክት (TypeError) ያስከትላል።
ከGrade 11 Information Communication Technology፣ ከገጽ 132 ጀምሮ የተዘጋጀ፤ ከመውጣቱ በፊት ሁለት ጊዜ ተረጋግጧል
በዚህ ምዕራፍ ላይ የተጻፉ 10 የምርጫ ጥያቄዎች፣ እያንዳንዳቸው መልሱና ምክንያቱ አላቸው። መልሱን ከመክፈትዎ በፊት ይሞክሩ። ጥያቄዎቹ በእንግሊዝኛ ናቸው።
ጥያቄ 1
In machine language, which symbols are used to represent instructions, numbers and memory locations?
መልስ፦ A 1s and 0s (the binary system)
ምክንያቱ
Machine language is a low-level language. Everything in it is written with 1s and 0s, which is the binary system. Mnemonics are used in assembly language, not machine language.
ጥያቄ 2
Which software translates assembly language instructions into machine language?
መልስ፦ C Assembler
ምክንያቱ
The textbook says the software that translates assembly language into machine language is called an Assembler. A compiler and an interpreter translate high-level languages, not assembly language.
ጥያቄ 3
What does the name IDLE stand for, as used with Python?
መልስ፦ A Integrated Development and Learning Environment
ምክንያቱ
IDLE stands for Integrated Development and Learning Environment. It is the free environment that comes with Python.
ጥያቄ 4
A Python script is saved in a file. Which file extension must the script file have?
መልስ፦ B .py
ምክንያቱ
The textbook says a file that keeps Python scripts is saved with the .py extension. This is called a script file.
ጥያቄ 5
Which of these languages uses an interpreter to translate its programs?
መልስ፦ C Python
ምክንያቱ
C, Java and C# use compilers. Python, Perl and Ruby use interpreters. An interpreter translates and runs a program one statement at a time.
ጥያቄ 6
A student writes this line to find the area of a circle: area=PI*radius*2. Python runs the program with no error message, but the answer is wrong. What kind of error is this?
መልስ፦ B Logic error
ምክንያቱ
The program has no syntax error because it follows the rules of the language. It is a logic error because the formula is wrong. The correct formula is area=PI*radius**2. Interpreters and compilers do not catch logic errors.
ጥያቄ 7
Which of these is a valid identifier in Python?
መልስ፦ D area_5
ምክንያቱ
An identifier must start with a letter or an underscore, and the other characters must be letters, numbers or underscores. area_5 follows these rules. 1x starts with a number, *_5 starts with a character that is not allowed, and while is a keyword.
ጥያቄ 8
Which of these is an expression, not a statement?
መልስ፦ D x+5
ምክንያቱ
An expression is something the interpreter evaluates to produce a value. x+5 is a complex expression. x=5, y=x and print(x) are statements, because they are instructions the interpreter carries out.
ጥያቄ 9
Which expression gives the result 2?
መልስ፦ B 5//2
ምክንያቱ
The floor division operator // returns only the integer part of the quotient, so 5//2 gives 2. The division operator / gives 2.5. The modulus operator % returns the remainder, which is 1. The exponentiation operator ** gives 32.
ጥያቄ 10
Look at this code:
x=5
y=2.5
z=x+y
What is the data type of z?
መልስ፦ B float
ምክንያቱ
Here x is an int and y is a float. Python does the conversion itself, which is called implicit conversion. It converts the smaller type (int) to the larger type (float) so that no data is lost. So z is a float, with the value 7.5.
መተግበሪያው በዚህ ምዕራፍ ላይ 12 ጥያቄዎች አሉት፤ እየሠሩ ያርምዎታል። እዚህ ያሉት የመጀመሪያዎቹ 10 ናቸው።
ሙሉው የ11ኛ ክፍል የየመረጃ ቴክኖሎጂ መማሪያ መፅሐፍ፣ በነጻ PDF።
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