Microprocessor Questions for KERALA PSC Computer Science Exam

1. The interrupt for which the processor has highest priority among all the external interrupts is
a) keyboard interrupt
b) TRAP
c) NMI
d) INT

Answer: c
Explanation: The Non-Maskable Interrupt input pin has the highest priority among all the external interrupts.

2. The interrupt for which the processor has highest priority among all the internal interrupts is
a) keyboard interrupt
b) TRAP
c) NMI
d) INT

Answer: b
Explanation: TRAP is the internal interrupt that has highest priority among all the interrupts except the Divide By Zero (Type 0) exception.

3. In case of string instructions, the NMI interrupt will be served only after
a) initialisation of string
b) execution of some part of the string
c) complete string is manipulated
d) the occurrence of the interrupt

Answer: c
Explanation: When NMI is activated, the current instruction being executed is completed and then NMI is served. In case of string instructions, it is served after the complete string is manipulated.

4. The NMI pin should remain high for atleast
a) 4 clock cycles
b) 3 clock cycles
c) 1 clock cycle
d) 2 clock cycles

Answer: d
Explanation: The NMI pin should remain high for atleast 2 clock cycles and need not be synchronized with the clock for being sensed.

5. The INTR signal can be masked by resetting the
a) TRAP flag
b) INTERRUPT flag
c) MASK flag
d) DIRECTION flag

Answer: b
Explanation: The INTR signal can be masked by resetting the interrupt flag.

6. For the INTR signal, to be responded to in the next instruction cycle, it must go …….. in the last clock cycle of the current instruction
a) high
b) low
c) high or low
d) unchanged

Answer: a
Explanation: The INTR signal must go high in the clock cycle of the current instruction in order to respond in the next instruction cycle.

7. The status of the pending interrupts is checked at
a) the end of main program
b) the end of all the interrupts executed
c) the beginning of every interrupt
d) the end of each instruction cycle

Answer: d
Explanation: At the end of each instruction, the status of the pending interrupts is checked.

8. Once the processor responds to an INTR signal, the IF is automatically
a) set
b) reset
c) high
d) low

Answer: b
Explanation: The IF is automatically reset when the processor responds to an INTR signal. If the processor wants to respond to any type of INTR signal further then, the IF should again be set.

9. If the pin LOCK (active low based) is low at the trailing edge of the first ALE pulse, then till the start of the next machine cycle, the pin LOCK (active low) is
a) low
b) high
c) low or high
d) none of the mentioned

Answer: a
Explanation: The pin LOCK (active low) remains low till the start of the next machine cycle.

10. With the trailing edge of the LOCK (active low), the INTA (active low) goes low and remains in it for
a) 0 clock cycle
b) 1 clock cycle
c) 2 clock cycles
d) 3 clock cycles

Answer: c
Explanation: The INTA (active low) goes low and remains low for two clock cycles before returning back to the high state.

Start Preparation 4 HSST COMPUTER SCIENCE EXAM Now!!!

Extraordinary Gazette Date:- 30.08.2017

Last Date:- 04.10.2017

Category No: 328/2017 to 341/2017

Applications are invited Online only from qualified candidates for appointment in the undermentioned post in Kerala Government Service. Before applying for the post the candidatesshould register as per the One Time Registration through the official website of Kerala Public ServiceCommission.

1 Department: Kerala Higher Secondary Education 

2 Name of Post:

Higher Secondary School Teachers (Junior) in the following subjects 

Sl. No.14

Category No : 341/17

Subjects: Computer Science

Scale of Pay : 32,300- 68,700/-

No. of Vacancies  : Anticipated 

Separate Ranked Lists will be prepared and published for each subject mentioned above. The list of

selected candidates published by the Commission in response to this notification shall remain in force

for a minimum period of one year provided that the said list will continue to be in force till the

publication of a new list after the expiry of the minimum period of one year or till the expiry of three

years whichever is earlier. Candidates will be advised from the said list against the vacancies if any

reported to the Commission in writing during the currency of the list. 

Method of appointment : Direct Recruitment

Age limit :

1.Age 20-40 Only candidates born between 02.01.1977

and 01.01.1997 (both dates are included) are eligible to

apply for this post with usual relaxation to Scheduled

Castes, Scheduled Tribes and Other Backward

Communities. 

(for other conditions regarding the age relaxation please

see part 2 of the General Conditions.)

2. Relaxation in upper age limit upto 43 ( Forty Three)

years as on the 1stday of January 2017 shall be allowed

to the qualified Ministerial Staff under Higher Secondary

Education Department for direct recruitment to the

category of Higher Secondary School Teacher.

Note : 

As per G.O.(P) No.61/12/SWD dated 17.10.12, 3% vacancies are reserved for eligible 

differently abled candidates , 

(1) For Arts & Commerce subjects - Locomotor disability/cerebral palsy,blindness, low vision(2) For Science Subjects – Locomotor disability/cerebral palsy / low vision

Qualification HSST Computer Science 

1

Master's Degree in Engineering or Technology in the concerned subject / M. Tech

Degree in Computer Science, Computer Engineering or Information Technology /

Software Engineering with not less than 50% marks from a recognized University 

OR

Master's Degree in Computer Application/ Master's Degree in Computer Science or 

Information Technology with not less than 50% marks from a recognized University.

2

In the absence of qualified candidates in item (1) above B.Tech/ Bachelor of 

Engineering Degree with not less than 50% marks in any branch of study with Computer 

Science/ Computer Engineering/ Information Technology from a recognized University. 

OR

B.Tech/ Bachelor of Engineering Degree with not less than 50% marks in any branch of 

study with Post Graduate Diploma in Computer Application from a recognized 

University/ Lal Bahadur Sastri Centre for Science & Technology / Institute of Human 

Resource Development or Department of Electronics 'A' Level accredited 

OR

Masters Degree with not less than 50% marks in Mathematics/ Physics with Post 

Graduate Diploma in Computer Application from a recognized University / Lal Bahadur 

Sastri Centre for Science & Technology / Institute of Human Resource Development or 

Department of Electronics 'A' Level accredited 

OR

M.Tech Degree with not less than 50% marks in Electronics & Telecommunication / 

Electronics Engineering from a recognized University. 

OR

B.Sc. Degree in Computer Science with not less than 50% marks and Post Graduate 

Diploma in Computer Application from a recognized University/ Lal Bahadur Sastri 

Centre for Science & Technology / Institute of Human Resource Development or 

Department of Electronics 'A' Level accredited 

OR

M.Sc. Statistics with not less than 50% marks with Post Graduate Diploma in Computer 

Application from a recognized UniversityHSS

Computer Questions asked for UGC : General Paper

1.What is blog ?
a) online music
b)Intranet
c)A personal or corporate website in the form of an online journal
d)A personal or corporate google search

2. bit stands for
a) binary information term
b) binary digit
c) binary tree
d) bivariate tree

3. Which one of the following is not a network device
a) Router
b) Switch
c) Hub
d) CPU

4. Which is the largest unit of storage among the following
a) Terabyte
b) Megabyte
c) Kilobyte
d) Gigabyte

5. Which of the following is not related to information security on the internet
a) Data encryptionb) water marking
c) Data hiding
d) Information Retrieval

6. A compiler is used to convert the following to object code which can be executed
a) High Level Language
b) Low Level Language
c) Assembly level language
d)Natural Language

7.Which one of the following is an example of Operating System ?
(A) Microsoft Word
(B) Microsoft Excel
(C) Microsoft Access
(D) Microsoft Windows

8.Which one of the following represent the binary equivalent of the decimal number 23 ?
(A) 01011
(B) 10111
(C) 10011
(D) None of the above

9. Which one of the following is different from other members ?
(A) Google
(B) Windows
(C) Linux
(D) Mac

10.Where does a computer add and compare its data ?
(A) CPU
(B) Memory
(C) Hard disk
(D) Floppy disk

11.Computers on an internet are identified by
(A) e-mail address
(B) street address
(C) IP address
(D) None of the above

12.The set of computer programs that manage the hardware/software of a computer is called
(A) Compiler system
(B) Operation system
(C) Operating system
(D) None of these

13. The hexadecimal number systemconsists of the symbols
(A) 0 – 7
(B) 0 – 9 , A – F
(C) 0 – 7, A – F
(D) None of these

14.1 GB is equal to
(A) 2^30 bits
(B) 2^30 bytes
(C) 2^20 bits
(D) 2^20 bytes

15. S/MIME in Internet technologystands for
(A) Secure Multipurpose Internet Mail Extension
(B) Secure Multimedia Internet Mail Extension
(C) Simple Multipurpose Internet Mail Extension
(D) Simple Multimedia Internet Mail Extension

16.The octal number system consists of the following symbols :
 (A) 0 – 7 
 (B) 0 – 9
 (C) 0 – 9, A – F
 (D) None of the above

17. DNS in internet technology stands for
 (A) Dynamic Name System
 (B) Domain Name System 
 (C) Distributed Name System
 (D) None of these

18. HTML stands for
 (A) Hyper Text Markup Language 
 (B) Hyper Text Manipulation Language
 (C) Hyper Text Managing Links
 (D) Hyper Text Manipulating Links

19.Which of the following is type of LAN ?
 (A) Ethernet
 (B) Token Ring
 (C) FDDI
 (D) All of the above

20.Which of the following operating system is used on mobile phones ?
(A) Windows Vista
(B) Android
(C) Windows XP
(D) All of the above

21.TCP/IP is necessary if one is to connect to the
 (A) Phone lines
 (B) LAN
 (C) Internet 
 (D) a Server

22. Each character on the keyboard of computer has an ASCII value which stands for
 (A) American Stock Code for Information Interchange
 (B) American Standard Code for Information Interchange 
 (C) African Standard Code for Information Interchange
 (D) Adaptable Standard Code for Information Change

23. Which of the following is not a programming language ?
 (A) Pascal
 (B) Microsoft Office
 (C) Java
 (D) C++

24.Minimum number of bits required to store any 3 digit decimal number is equal to
 (A) 3
 (B) 5
 (C) 8 
 (D) 10

25.Internet explorer is a type of
 (A) Operating System
 (B) Compiler
 (C) Browser 
 (D) IP address

25. ALU stands for
 (A) American Logic Unit
 (B) Alternate Local Unit
 (C) Alternating Logic Unit
 (D) Arithmetic Logic Unit 

26. A Personal Computer uses a number of chips mounted on a circuit board called
 (A) Microprocessor
 (B) System Board
 (C) Daughter Board
 (D) Mother Board 

27. Computer Virus is a
 (A) Hardware
 (B) Bacteria
 (C) Software 
 (D) None of these

28. Which one of the following is correct ?
 (A) (17)10 = (17)16
 (B) (17)10 = (17)8
 (C) (17)10 = (10111)2
 (D) (17)10 = (10001)2

29. The file extension of MS-Word document in Office 2007 is _______.
 (A) .pdf
 (B) .doc
 (C) .docx 
 (D) .txt

30. _______ is a protocol used by e-mail clients to download e-mails to your computer.
 (A) TCP
 (B) FTP
 (C) SMTP
 (D) POP

31.POP3 and IMAP are e-mail accounts in which
(A) One automatically gets one’s mail everyday (B) One has to be connected to the server to read or write one’s mail
 (C) One only has to be connected to the server to send and receive email
 (D) One does not need any telephone lines

Compiler Designing Phases

The compiler being a complex program is developed through several phases.  The task of compiler design can be divided very broadly into two sub-tasks.

I .  The analysis of a source program
II.  The synthesis of a object program


I .  The analysis of a source program

The anaysis task consists of 3 phases. They are

i)    Lexical analysis

ii)   Syntax analysis

iii)  Semantic analysis

II.  The synthesis of a object program 

The synthesis task consists of 2 phases. They are

i)    Code generation

ii)   Code optimization

Indian-American engineer made head of Google Android

Posted on: 15 Mar 2013

Washington:Indian-origin Sunder Pichai, an IIT-Kharagpur alumnus, has been named as the new head of Google's Android division, making him one of the most powerful executives at the Internet giant. 'Going forward, Sundar Pichai will lead Android, in addition to his existing work with Chrome and Apps,' company CEO Larry Page has announced.Page made the announcement on a blog, adding that Tamil Nadu-born Pichai has a talent for creating products that are technically excellent yet easy to use-and he loves a big bet. 'Take Chrome, for example. In 2008, people asked whether the world really needed another browser. Today Chrome has hundreds of millions of happy users and is growing fast thanks to its speed, simplicity and security,' Page said. 40-year-old Pichai replaces Andy Rubin, the man behind the success of Google's Android division.

Courtesy : Mathrubhumi

Questions from MSExcel 4 IBPS Exams

1. The number of rows in a worksheet is

a. 36500

b. 65536
c. 256
d. 64536

An worksheet consists 256 columns and 65536 rows.

2. When a formatted number does not fit within a cell, it displays

a. #####

b. #DIV/0
c. #DIV@
d. None of these

3.Data can be arranged in ascending or descending order by using

a. Sort command from Table menu
b. Sort command from Data menu
c. Sort command from Tools menu
d. None of these

4. Which of the following is concantenating operator?

a. Apostrophe (‘)
b. Exclamation (!)
c. Ampersand (&)
d. Hash (#)

5.Red triangle at the top right corner of a cell indicates

a. There is an error in the cell
b. There is a comment associated with the cell
c. The font color of the text in cell is red
d. The cell can’t accept formula

6. To select multiple non-adjecent cells in a worksheet you will click them holding

a. CTRL key
b. ALT key
c. Shift Key
d. Ctrl+Shift key

7. How many sheets are there in Excel Workbook by default?

a. 2

b. 3
c. 4
d. 5

8. To move to the previous worksheet press

a. Ctrl+PgUp

b. Ctrl+PgDn

c. Shift+Tab

d. Ctrl+Tab

9. The process of identifying specific rows and columns so that so that certain columns and rows are always visible on the screen is called

a. freezing

b. locking

c. selecting

d. fixing

10. To keep specific rows and columns from scrolling off the screen you first must position the cell pointer
a. to the right of the column you want to remain on the screen
b. below the row you want to remain on the screen
c. on the row you want to remain on the screen
d. both below and right of the row and column you want to remain on the screen

Computer Science & Information Technology Lecturer Vacancies

Central University of Jammu 
8/8, Trikuta Nagar, Jammu - 180012 (J&K State)  

Application in the prescribed format are invited from the eligible candidates for the following positions of Professor, Associate Professor and Assistant Professors for the following subjects :

• Computer  Science & Information Technology/ Economics/ Educational Studies/ English / Environmental Sciences/  Human Resources Management and Organisational Behavior / Mathematics/ National Security Studies/ Public Policy and Public Administration/ Tourism and Travel Management

Posts :

1. Professor : 10 posts, Pay Scale : Rs. 37400- 67000 AGP Rs. 10000
   
2. Associate Professor : 20 posts, Pay Scale : Rs. 37400- 67000 AGP Rs. 9000
3. Assistant Professor : 40 posts, Pay Scale : Rs. 15600-39100 AGP Rs. 6000

How to Apply : Application in the prescribed format complete in all respects to be sent through post to  OSD (Administration), Central University of Jammu, 8/8, Trikuta Nagar, Jammu - 180012 (J&K State)  on or before15/03/2013.

Please viewhttp://cujammu.ac.in/teaching_notification_and_form.PDF for details and application format.