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What is Process Control Block ?Today in this Computer Science Study Material for Gate we will discuss about process control block and its various field which provides the information about process. .So let see what is process control block.A Process Control Block is a data structure maintained by the Operating System for every process. Each process has it own data structure.  When a process is created then a unique id is assigned to the process Operating system identify a process among all processes on the basis of this process id. A PCB keeps all the information needed to keep track of a process. Generally a process control block contains the following information about a process....
Computer Science Junction...
Tag :gate study material for computer science
  February 23, 2018, 8:41 pm
Process Concept in Operating System: Process and Process State Diagram Today in this Computer Science Study Material for Gate we will discuss about process and process state diagram. SO let start with process meaning. What is Process ?When we start to study the process in operating system then first question that come in mind is how process is different from a  program ?So let me clear the answer of this question process is nothing but it is a program in execution, it means it is an active entity where as program is  a passive. The term program is used when user data or instruction is on disk, but as soon as it is loaded into memory for execution it becomes a process...
Computer Science Junction...
Tag :gate study material for computer science
  February 16, 2018, 6:47 am
JDBC ( Java Database Connectivity) TutorialJDBC is known as java database connectivity. To connect java with any database we require a jdbc driver which implements all the interfaces provided in sql package. Java provides jdbc-odbc bridge driver.Figure 1: Java Application Interaction with DatabaseJDBC uses ODBC drivers available on your machine. DB Vendor provides its own driver. To use them set driver (.jar) into class path/install them into your machine.Package required - java.sql. In this package most of them are interfaces.Types of Driver Different types of drivers are as shown in figure 2.Figure 2: Driver types Driver Type 1: Figure 3: Type 1 DriverIn type 1 driver JDBC ODBC Bridge...
Computer Science Junction...
Tag :Core Java
  January 14, 2018, 9:16 am
 C  Programming Practice Question for GATE Exam Loops and Cotrols1. Consider the C program below.#include int *A, stkTop;int stkFunc (int opcode, int val){static int size=0, stkTop=0;switch (opcode){case -1:size = val;break;case 0:if (stkTop < size ) A[stkTop++]=val;break;default:if (stkTop) return A[--stkTop];}return -1;}int main(){int B[20];A=B;stkTop = -1;stkFunc (-1, 10);stkFunc (0, 5);stkFunc (0, 10);printf ("%d\n", stkFunc(1, 0)+ stkFunc(1, 0));}The value printed by the above program is ___________(a) 9 (b) 10(c) 15 (d) 17Solution: Option (c)2. Which combination of the integer variables x, y and z makes the variable a get the value 4 in the following expression?a = ( ...
Computer Science Junction...
Tag :C programming study material for gate exam
  January 9, 2018, 6:23 pm
Download GATE 2018 Admit CardAll the applicants were waiting for exam schedule and admit card of GATE 2018. Now this to inform you that Exam Schedule has been prepared and Admit card also have been released.You can also download the Admit card now. In this post I am providing the exam schedule and Link for downloading the Admit Card for GATE 2018.To download the admit card Click HereAll the Best to all GATE 2018 Applicants. !Reference : http://www.gate.iitg.ac.in/Keywords: gate2018, gate 2018 exam schedule, gate 2018 admit card....
Computer Science Junction...
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  January 6, 2018, 5:46 am
C Programming Based Practice Questions for GATE Computer Science 1. Which of the following statements should be used to obtain a remainder after dividing 3.14 by 2.1 ?(a) rem = 3.14 % 2.1;(b) rem = modf(3.14, 2.1);(c) rem = fmod(3.14, 2.1);(d) Remainder cannot be obtained in floating point division.It's Solution Explanation2. What are the types of linkages?(a) Internal and External (b) External, Internal and None(c) External and None (d) InternalIt's Solution Explanation3. Which of the following special symbol allowed in a variable name?(a) * (asterisk) (b) | (pipeline)(c) - (hyphen) (d) _ (underscore)It's Solution Explanation4. Is there any difference between following declarations?1: exter...
Computer Science Junction...
Tag :Computer Science Study Material for Gate
  January 1, 2018, 1:41 am
Most Frequently Asked Interview Question in Javajava is an Object  Oriented Programming Language. Which is mostly used to develop Windows based Software  as well as Web Based Project. It is good to have good knowledge about a programming language and practical knowledge for developing program in that particular language. In the technical interview for the post of  Java Developer some basic questions are asked. In this post I am telling about questions at basic level. These questions are related to Variable, operators, JVM and Jdk, Interface and access specifier. Basics Important Questions  for freshers from Core JavaQ        &n...
Computer Science Junction...
Tag :core java interviews questions
  December 29, 2017, 5:55 am
C- Programming Language Based Practice Questions for GATE Computer Science1. Consider the following programmain ( ){int i = 5;if (i = = 5) return;else printf “i is not five”);printf (“over”);}results in(a) a syntax error (b) an execution error(c) printing of over (d) printing anythingSolution: Option (d)2. The following statementsfor (i = 3; i < 15; i +=3){printf (“%d”, i);++i;}will result in the printing of(a) 36912 (b) 3691215(c) 3711 (d) 371115Solution: Option (c)3. The possible output of printf (“%d %d”, wer, wer+1); is(a) 262262 (b) 262263(c) 262265 (d) 262266Solution: Option (d)4. The following programmain ( ){static char [3] [4] = {“abcd”, “mnop”, “fghi”...
Computer Science Junction...
Tag :C programming study material for gate exam
  December 26, 2017, 11:55 pm
Some Typical Questions in Computer Networks for GATE CSE ExamHello, friends today in this Computer Science Study Material for Gate I am going to discuss some conceptual questions in computer networks. Here are these questions and their answer.Q1.How does address resolution is performed in Arp?Answer: The table lookup approach to address resolution requires a data structure thatcontains information about address bindings. The table consists of an array.Each entry in the array contains a pair [P, H] where P is a protocol addressand H is the equivalent hardware address. A separate address binding table isused for each physical network. Consequently, all IP addresses in a giventable have th...
Computer Science Junction...
Tag :Computer Networks
  December 16, 2017, 1:18 am
Routing Table in Computer NetworksBefore explaining the routing table I would like to recall the previous post.In our previous post   Routing Concepts in Computer Networks we have explained the basic introduction of the routing concept. In the continuation of that post now in this article of Computer Science Study Material for Gate, we are going to tell about routing table. In this article provides the information about the different fields of a routing table with a suitable example, what is the use of these fields and how a particular route is selected for the destination host. So let's start with the introduction of routing table.What is Routing Table?Routers maintain a rout...
Computer Science Junction...
Tag :Computer Science Study Material for Gate
  December 8, 2017, 6:06 pm
Gate preparation books for computer science Today in this post I am going to tell the name of some standard books which are mostly read by the students who prepare for GATE Computer Science Exam. These books really have good quality content for preparing the GATE Exam. So here is the subjectwise list.(1)     Name: Operating System Concepts        Authors: Galvin        Publication: WILEY(2)    Name: Compiler            Authors: Ravi Sethi, Ullman            Publication: Pearson            ( 3)    Name: Databa...
Computer Science Junction...
Tag :gate 2018
  December 6, 2017, 6:59 pm
What is Routing?Routing in computer networks is a process which decides on which route the incoming packet will be transmit. It is a process of transmitting the packet from one host to another host.  The process of routing is carried out by the devices known as routers. Different type of routing protocols or routing algorithms are used at network layer which decides which output line the packet will transmit. Since when a packet moves from source host to destination host then in the path several intermediate nodes occurs so routing protocols or routing algorithm decides the next intermediate node in the path from source to destination.Routing protocols are nothing but a set of rules tha...
Computer Science Junction...
Tag :Computer Science Study Material for Gate
  November 28, 2017, 2:53 pm
In this post under Computer Science Study Material for Gate, we are going to tell the differences between File Transfer Protocol (FTP) and Hypertext Transfer Protocol (HTTP). File Transfer ProtocolFTP and HTTP both were developed to make Internet transmission better.FTP is used to exchange files between computer accounts, to transfer files between an account and a desktop computer (upload), or to access software archives on the Internet.It 's also commonly used to download programs and other files to your computer from other servers. It transfers files in two different formats ASCII for text files and Binary format for binary files. This allows a user to perform basic file and directory...
Computer Science Junction...
Tag :Computer Science Study Material for Gate
  November 20, 2017, 10:42 am
 TCP/IP protocol based questions for gate computer science examQ1.What is the difference between transport and session layer of OSI model.Answer: OSI Model Transport LayerThe transport layer uses the services provided by the network layer, such as best path selection and logical addressing, to provide end-to-end communication between source and destination. • The transport -layer data stream is a logical connection between the endpoints of a network.• End-to-end control is provided by sliding windows and reliability in sequencing numbers and acknowledgments. The transport layer regulates information flow to ensure end-to-endconnectivity between host ...
Computer Science Junction...
Tag :Computer Science Study Material for Gate
  November 17, 2017, 5:18 am
TCP/IP Protocol SuiteOSI is a reference model it is not actually a implemented model. TCP/IP is actually implemented the model. TCP/IP refer to a suite of data communication protocols. TCP/IP have two zones protocol that composes the suite.Here in this gate study material for computer science we will study about different protocols used at different layers of TCP/IP model. We will also study their functionality at the corresponding layer.TCP/IP protocol suite has five layers as shown in the figure. Different types of protocols used at different  layers of TCP/IP Protocol suite as shown in the figure are explained as follows:1.      Protocols for p...
Computer Science Junction...
Tag :Computer Science Study Material for Gate
  November 10, 2017, 6:14 am
Here you will get various article related to C Programming Language concepts and some programs that will help you to understand the concepts of  C Programming Language.Theory Concepts1. Conditional Statements in C Programming2. Looping Concepts in C Programming3. Structure Concepts in C4. File Handling in C5. Concepts of Pointer in C 6. Concepts of Pointer to Structure in C7. Accessing value of Integer using Pointer8.Dynamic Memory Allocation in C9. Difference between Syntactic and Semantic Error10.Some Common Programming Error in C11.Top Down Programming ApproachMore Articles are coming soon....!Objective Questions in C1.Objective Questions in C ...
Computer Science Junction...
Tag :Computer Science Study Material for Gate
  November 6, 2017, 7:34 pm
Here you will get various article related to Java Programming Language concepts and some programs that will help you to understand the concepts of Java Programming Language.Core Java Concepts1.Modifiers used in Java: Introduction More Articles are coming soon....!Advance Java Concepts1. Cookies : Introduction2. Session Tracking in ServletMore Articles are coming soon...!Interview Questions in Java1.Core Java Interview Questions for Freshers2. Important Interview Question in Core Java3. Short Answer type Interview Questions in Core Java4. Interview Questions in Core Java for Freshers5.Java Interview Questions ...
Computer Science Junction...
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  November 6, 2017, 6:02 am
Here you will get various article related to Software Engineering concepts and examples that will help you to solve the Software Engineering based questions for Gate Exam.Theory Concepts1. Software Quality Assurance based Study Material for gate Computer Science2.Regression Testing based gate study material for computer science3.Cost Consideration in Software Quality Measurement4.Software Quality Assurance: An IntroductionMore articles are coming soon....Practice SetsQuestions1. Subjective Question in Software Engineering...
Computer Science Junction...
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  November 6, 2017, 5:25 am
Here you will get various article related to Computer Networks concepts and examples that will help you to solve the Computer Networks based questions for Gate Exam.Theory Concepts1.What is Data Encapsulation Process during Data Transmission in Computer Network ?2. TCP/IP Protocol Suite based Study Material for gate Computer Science3.TCP/IP Model based questions for Gate Computer Science Exam4. Differences between FTP and HTTP5.Routing Concepts in Computer Networks6.Routing Table based Study Material for gate Computer ScienceMore Articles are coming soon....!Problems Solving2. Practice Sets...
Computer Science Junction...
Tag :Computer Science Study Material for Gate
  November 5, 2017, 7:06 pm
Data Encapsulation ProcessBasics of data encapsulation processIn a computer network, we send the data from source computer to destination computer. In a computer network sending and receiving of data from one device to another is possible with the help of networking protocols when data is encapsulated at sender's side.  Data is encapsulated along with protocols information at each layer of OSI reference model when it is transmitted from sender to a receiver across the network. In general Data Encapsulation is a process of each layer at sending machine adding its Header information. This header information just works as metadata.Here in this Computer Science Study Material for Gate we ha...
Computer Science Junction...
Tag :Computer Network Study Material
  November 4, 2017, 10:05 am
Computer Network Practice Questions for Gate CSE Exam 1. Suppose ‘A’ and ‘B’ are on same 10Mbps Ethernet segment and the propagation delay between two nodes is 275 bit times. Suppose A and B are on two ends of the wire and tries to send a frame at time t=0 and frames collide. Then at what time (in bits) they finish transmitting a jam signal. Assume 48 bit jam signal.A. 598 B. 323 C. 502 D. 227 Solution: Option B 2. Suppose each station in IEEE 802.5 with 1bit delay is 48m apart from its neighbouring stations. Token is of 3 Bytes and propagation delay is 2.4 * 108 m/sec. To avoid overlapping in the 4Mbps token ring in the monitor must insert 15 bits of artificial delay ...
Computer Science Junction...
Tag :computer science study material for gate exam
  November 1, 2017, 6:43 am
What is rational rose software?    INTRODUCTIONRational Rose is a set of visual modeling tools for development of object-oriented Modeling is the process of graphically depicting the system to be developed.It helps us in Presenting the essential details and it Filters out non-essential details. The rational rose software helps us to understand the system from different perspectives.Applications of Rational ROSE SoftwareRational rose software is basically used to draw UML diagram. It is a professional and widely used in industry and academics to make the diagram during the design phase of software development lifecycle. ·   &nb...
Computer Science Junction...
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  October 29, 2017, 4:54 pm
आत्म विश्वाश बढ़ाने के लिए कुछ जरूरी टिप्स "How to increase  self confidence ?""अक्सर हमारी जिंदगी में ऐसे पड़ाव भी आते हैं, जब हम  लगातार मिल रही असफलता की वजह  से अपना आत्मविश्वाश खोने लगते हैं और धीरे धीरे खुद को बहुत अकेला महसूस करने लगते हैं ।  ऐसे हालात  के आने का कोई समय या कोई ...
Computer Science Junction...
Tag :Self confidence improvement tips
  October 26, 2017, 5:49 am
Computer Science Study Material for Gate: Addressing modes and its typeIn this study material for gate computer science, we are going to explain different types of addressing modes. We have examined the types of operands and operations that may be specified by machine instructions. Now we have to see how is the address of an operand specified, and how are the bits of an instruction organized to define the operand addresses and operation of that instruction.Addressing Modes: The most common addressing techniques are• Immediate• Direct• Indirect• Register• Register Indirect• Displacement• StackAll computer architectures provide more than one of these addressing modes. The questio...
Computer Science Junction...
Tag :computer science study material for gate exam
  October 23, 2017, 6:13 am
Learn Computer Organization and ArchitectureHere you will get various articles, Practice Questions Set, Interview Questions  related to Computer Organization and Architecture and examples that will help you to solve the operating system based questions for Gate Exam. This post also consists of the gate study material for computer science exam     Concept-based  Articles1. Mapping Techniques used for Cache Memory Based Computer Science Study Material for Gate2.Computer Science Study Material for Gate: Addressing Modes and It's TypePractice Questions Sets1. Memory, I/O Interface and Control Design based Computer Science Study Material for Gate (Practice Set)2...
Computer Science Junction...
Tag :computer science study material for gate exam
  October 15, 2017, 4:15 pm

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