EXERCISE REVISION TOPIC 1

SECTION A: MULTIPLE CHOICE QUESTION

INSTRUCTION : Circle the correct answer.

 

1.     Which of the following is NOT an input device?

A.     A. Mouse

B.     B. Keyboard

C.     C.    Speaker

D.     D. Microphone

 

2. Which of the following is a secondary memory device?
	A.	Keyboard
	B.	Disk
	C.	Printer
	D.	Mouse

 

3.  Which statement(s) below is TRUE about computer main memory?

i.                 Main memory is volatile

ii.               Main memory is also called RAM

iii.              It is  an internal and external main memory

iv.              A program in execution must be running in main memory

 

A.     i,ii only

B.     i,ii,iii only

C.     i,ii and iv only

D.     All are true

 

4.   Which of the statements below are FALSE about Java program?

i.                           All Java bytecode files are in machine language form

ii.                          All Java bytecode files are machine dependent

iii.                        The Java source code file is in machine language form

iv.                        Java source code is always translated directly to machine code

A.     i and ii only

B.     i,ii and iv only

C.     iii and iv only

D.    All are false

 

5.  A software is consist of  _________________________                 

A.    the program part excluding the data

B.    program and data together

C.    program and part of hardware

D.    data only excluding program

6.  The function of the JVM is to _____________________________

A.    act as a compiler to translate a java code to the target machine language code.

B.    provide a simulated memory and CPU to run the java code written by user.

C.    interpret a translated java bytecode in a target machine environment.

D.    provide a translation of code from a machine independent code to a machine dependent code.

 

7.   The computer stores a program while the program is running, as well as the data that the program is working with, in __________.
A.	secondary storage
B.	the CPU
C.	main memory
D.	the microprocessor

 

SECTION B: STRUCTURED QUESTION

Instruction:  Answer ALL questions in the space provided.

 

1.     List FOUR (4) major differences between a secondary storage and primary storage.

 

PRIMARY STORAGE	SECONDARY STORAGE
Volatile	Non- Volatile
Capacity - Low	Capacity - Large
Price - Expensive	Price - Cheap
Faster	Slower than primary

 

2.     Give ONE difference between Java compiler and Java interpreter.

 

-        Java compiler is translates Java source code into a special representation called bytecode .

-        Java interpreter is translates bytecode into machine language and executes it.

 

3.	Answer all the following questions with regard to computers and programming languages. a)           What is the difference between a compiler and an assembler?   -        A compiler is a software tool which translates from high level language into a specific machine language. -        An assembler translates from assembly language into a specific machine language.    b)           What is the difference between a Java compiler and a compiler of other languages such as C?   -        Java compiler - translates Java source code into a special representation called bytecode . -        Compiler - translates high level language to machine language
4.	Complete the following table to differentiate between the application and system software.   Aspect of comparison System Software Application Software   What it is? A program to control / manage hardware components and software Generic term for any other kind of software   An example   Windows 10, Unix, Linux, Mac OS. Ms Word processor, Excel Spreadsheets, Web browsers, games
5.	Briefly describe THREE (3) types of errors that can occur in the programming process in the table below. For each type of the error, you can include an example of the error in your description.                                                                                                    Type of Error Description Syntax Error Grammatical mistake Runtime Error Errors that are detected when your program is running, but not during compilation. Logic Error Errors that are not detected during compilation or while running but cause the program to produce incorrect results.

 

6. What is the output of the following Java code segment?

a.	System.out.print("Hello"); System.out.print("World");    System.out.println("Hello");      System.out.println("World");
	HelloWorldHello  World
b.	System.out.println("Brothers and Sisters"); System.out.println("How"); System.out.print("Are"); System.out.print("You?");
	Brothers and Sisters How AreYou?

 

 

 

7. Write a Java program to display the following output:

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 |       PROGRAMMING 1     |

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