(A) Word Size : Word size is the maximum number of bits that a microprocessor can process at a time. Microprocessors are classified on the basis of different features which include chip type, word size, memory size, clock speed etc Microprocessor is a small-sized electronic component inside a computer that carries out various tasks involved in data processing as well as arithmetic and logical operations. Microprocessors :Ī processor (CPU) which is implemented on a single microchip is called microprocessor. But the control bus and address bus are unidirectional. As the CPU may require to read data from main memory or write data to main memory, a data bus is bidirectional. (iii) Control bus to communicate control signals between different components of a computer. Bus is of three types- (i) Data bus to transfer data between different components, (ii) Address bus to transfer addresses between CPU and main memory. A two nibble word, i.e., 8-bit word is called a byte, for example, 01000110, 01111100, 10000001, etc.Ĭomputer System Class 11 Notes Memory Unitsĭata are transferred between different components of a computer system using physical wires called bus. The binary digits 0 and 1, which are the basic units of memory, are called bits. Examples of secondary memory devices include Hard Disk Drive (HDD), CD/DVD, Memory Card, etc.Ī computer system uses binary numbers to store and process data. It is slower and cheaper than the main memory. The secondary memory is non-volatile and has larger storage capacity than primary memory. Secondary Memory : This memory is used to store the data or instructions for future use. Its contents are not lost even when the power isĢ.
(i) Random Access Memory (RAM) and (ii) Read Only Memory (ROM). Program and data are loaded into the primary memory before processing. Primary memory : It is also called main memory. Now-a-days, there is a new type of printer called 3D-printer, which is used to build physical replica of a digital 3D design.Ī computer system needs memory to store the data and instructions for processing. Three types of commonly used printers are inkjet, laserjet and dot matrix. for example Monitor, Printer, Speaker etc. Output Devices : The devices that receives data from a computer system for display, physical production, etc. Braille keyboards are used to help the visually impaired for entering data into a computer.ģ. for example Keyboard, Mouse, Scanner etc. Input Devices : The devices through which signals are sent to a computer are termed as input devices. ALU performs all the arithmetic and logical operations while CU controls sequential instruction execution.Ģ. CPU has two main components - Arithmetic Logic Unit (ALU) and Control Unit (CU). Central Processing Unit (CPU) : It is the component of a computer that carries out the actual processing and usually referred as the brain of the computer. Once you spend this small amount of time, things will be much simpler.1. Sample Servlet Program using JDBC.Īs you saw, this was a very simple task. I hope you don’t need the program now ! Below is a screenshot of how records from database will be displayed once the JDBC has been configured. Select MySQL Driver from Add Library menu.Ĭlick OK and run your program. Now look for MySQL JDBC Driver. Select that driver and add. html, servlet etc choose New from the same menu. Right click on your project name –> Properties. Also, to add new files like. Choose Java Web –> Web Application. Now you will see a list of files in the left pane. I had been using JDBC in swings previously. Now open NetBeans and create a new Application. Once the installation is done, it’s time to configure JDBC. Setup again was a breeze and require minimum number of clicks. Once done with this, a GUI wizard will start and will guide you for the rest of the setup. sh file, simply open terminal and type the following : Here are some steps to configure JDBC on Netbeans on Ubuntu.
#Mysql jdbc driver netbeans 12 download
(You can download it from here and choose Linux(圆4/x86) version) I had Oracle 10g installed on my desktop but wasn’t able to get the database connected.īut things were working just fine on my net book(Ubuntu) I prefer Ubuntu for programming for the sole reason that setting up things on it is easy and quick ! As we are using Netbeans IDE at our college, I first installed it on Ubuntu. I had been trying Servlet program on my desktop and it worked fine until I had to add database connectivity to it.
#Mysql jdbc driver netbeans 12 windows 8
To start with, I have two systems, a Core i5 desktop running Windows 7 (64 bit) and an Atom Net book running Windows 8 + Ubuntu 12.04. This is my first, to do, geeky post, hope this should help you all.
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