COMPUTER SCIENCE TEST

11TH CLASS

Chapter-01(Basics Of Information Technology)

Q-1: Chose the correct option.                                                                 1x14=14
1	DFD stands for:
a.        Data flow diagram b.        Data definition diagram c.        Digital flow diagram d.        Data flow design
2	MB stands for
	a.        Mega Byte b.        Mega bit c.        Master bit d.        Magnetic base
3	Bit stands for:
a.        Binary Digit b.        Byte digit c.        Base digit d.        Basic digit
4	How many keys in standard keyboard?
	b.        110	c.        115	d.        111	e.        102
5	Which of the following methods is used in data gathering step of system analysis?
	a.        Interview	b.        Questionnaires	c.        Sampling	d.        All
6	Which type of Diagram shows how information flows through a system?
	a.        Logic flow chart	b.        Gant chart	c.        DFD	d.        Decision table
7	Which of the following tasks is not part of the systems analyst role?
	a.        Programming	b.        Coordination	c.        Communication	d.        Planning
8	Which of the following is the first phase of SDLC?
	a.        Design	b.        Coding	c.        Preliminary investigation	d.        Analysis
9	One Gigabyte is equal to:
	a.        1000kb	b.        1024MB	c.        1024 x 1024 MB	d.        One million MB
10	Which of the following is an impact printer?
	a.        Dot-matrix printer	b.        Daisy Wheel printer	c.        Line printer	d.        All
11	Laser printer is an example of:
	a.        Non impact	b.        Inkjet	c.        Impact	d.        Dot Matrix
12	A pixcel may b displayed as:
	a.        White	b.        Blue	c.        Black	d.        All
13	Which keyboard is used most commonly?
	a.        DVORK	b.        TWRITER	c.        SPLITTER	d.        QWERTY
14	Another name of main memory is:
	a.        Secondary memory	b.        Permanent memory	c.        Primary Storage	d.        Tape Storage

Q-2: Write short answers any TEN, each question carry 2 marks.             

1.    What is Information Technology?

2.    What is data?

3.    What are pointing devices?

4.    What is track ball?

5.    Define BARCODE.

6.    What is System software?

7.    Define VGA.

8.    What is Plotter?

9.    What are non-impact printers?

10. Define Terminal.

11. What are basic units of data storage?

12. Who is Programmer?

13. Write difference between Track ball and Track pad.

Q-3: Write detail answers of the following questions.                  

1.   Discuss modern scenario of information technology.

2.    What is SDLC? Discuss its different phases.