Following questions have been asked in GATE 2006 CS exam. 1) Consider the following log sequence of two transactions on a bank account, with initial balance 120
The basic computer has 16-bit instruction register (IR) which can denote either memory reference or register reference or input-output instruction. Memory Refer
In this article, we will try to understand and compare different aspects of centralized, decentralized and distributed systems. 1. CENTRALIZED SYSTEMS: We start
Following questions have been asked in GATE CS 2007 exam. 1) Information about a collection of students is given by the relation studinfo(studId, name, sex). Th
Following Questions have been asked in GATE CS 2010 exam. 1) A relational schema for a train reservation database is given below. Passenger (pid, pname, age) Re
Following questions have been asked in GATE CS 2005 exam. 1) Let r be a relation instance with schema R = (A, B, C, D). We define r1 = ‘select A,B,C from r’
Following questions have been asked in GATE CS exam. 1. Given the relations employee (name, salary, deptno) and department (deptno, deptname, address) Which of
Mobile internet usage is growing at a steady pace, so much so that it is expected to overtake desktop browsing as early as 2016. It means that it has become
Distribution basically leads to increased complexity in the system design and implementation. This is to achieve the potential advantages such as: Network Trans
Web Application Framework or simply “web framework” is a software framework that is designed to support the development of web applications including we
Prerequisite – Addressing Modes Addressing modes are the operations field specifies the operations which need to be performed. The operation must be executed
If you’re a budding engineer in the trade of IT or someone else with a fresh interest in website development and design, then this post is for you. For over a
When a Programmer wrote a program, then how it is feeded to the computer and how it actually works? So, this article is about the process how the program code t
Simplified Instructional Computer (SIC) is a hypothetical computer that has hardware features which are often found in real machines. There are two versions of
Prerequisite – Simplified Instructional Computer (SIC) These are the instructions used in programming the Simplified Instructional Computer(SIC). Here, A stan
Web 1.0 – Web 1.0 refers to the first stage of the World Wide Web evolution. Earlier, there were only few content creators in Web 1.0 with the huge majority o
In the past ten years, there is a rapid increase in the development of GIS field. Due to this growing interest, new applications will continue to present new ch
Semantic Heterogeneity basically occurs when schema or data set for same domain is developed by independent parties which leads to differences in meaning, inter
Data management technology that can support easy data access from and to mobile devices is among the main concerns in mobile information systems. Mobile computi
Following Questions have been asked in GATE 2012 exam. 1) Which of the following statements are TRUE about an SQL query? P: An SQL query can contain a HAVING cl
Big Data includes huge valume, high velocity, and extensible variaty of data. These are 3 types: Structured data, Semi-structured data, and Unstructured data. S
Addressing Modes– The term addressing modes refers to the way in which the operand of an instruction is specified. The addressing mode specifies a rule for in
Following Questions have been asked in GATE 2011 exam. 1. Consider a relational table with a single record for each registered student with the following attrib
Following questions have been asked in GATE 2008 CS exam. 1) Let R and S be two relations with the following schema R (P,Q,R1,R2,R3) S (P,Q,S1,S2) Where {P, Q}
Following Questions have been asked in GATE 2012 exam. 1) Consider the following transactions with data items P and Q initialized to zero: T1: read (P) ; read (