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Handbook For Computer Hardware (Tamil). Programme Area: IEC. Upload: Hardware Tamil- ppti.info Publication Category: Training Manuals. Copyright. Login. User Name: Password: Login. Computer Hardware Engineering. Lecture 9: Parallelism, Concurrency, Speedup, and ILP. David Broman. Associate Professor, KTH Royal Institute of.

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Tamil Hardware Notes - Free download as PDF File .pdf) or read online for free. Tamil Computer Book - Adobe Photo Shop. Uploaded by. Sakthivel. Tamil. Basic knowledge of safeguarding hardware. Apply the knowledge to repair/ maintain a computer. 2. Computer Hardware Repairs and. Tamil-computer Hardware-Notes Read in tamil It is very helpful to so many people hardware and networking course Do wnloa d PDF.

A kernel is a program at the heart of any operating system that takes care of fundamental stuff, like letting hardware communicate with software. So, to work on your computer, you need an Operating System OS. In fact, you are using one as you read this on your computer. What is Linux? Linux is an operating system or a kernel.

It is distributed under an open source license. Its functionality list is quite like UNIX. Who created Linux? Linux is an operating system or a kernel which germinated as an idea in the mind of young and bright Linus Torvalds when he was a computer science student. However, when his suggestions were rejected by the designers of UNIX, he thought of launching an OS which will be receptive to changes, modifications suggested by its users. Something as you have a cone but no ice-cream on top.

As time passed by, he collaborated with other programmers in places like MIT and applications for Linux started to appear. So around , a working Linux operating system with some applications was officially launched, and this was the start of one of the most loved and open-source OS options available today.

The earlier versions of Linux were not so user-friendly as they were in use by computer programmers and Linus Torvalds never had it in mind to commercialize his product. This definitely curbed the Linux's popularity as other commercially oriented Operating System Windows got famous.

It is permanent in nature. In ROM booting instructions for computer in the form of firmware are stored. Cache memory is an intermediate between RAM and processor. It is very fast. Cache memory is random access memory RAM that a computer microprocessor can access more quickly than it can access regular RAM.

As the microprocessor processes data, it looks first in the cache memory and if it finds the data there from a previous reading of data , it does not have to do the more timeconsuming reading of data from larger memory.

The format offers more than five times the storage capacity of traditional DVDs and can hold up to 25GB on a single-layer disc and 50GB on a dual-layer disc. An analog computer is a form of computer that uses continuous physical phenomena such as electrical, mechanical, or hydraulic quantities to model the problem being solved.

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Thermometer, Speedometer, Petrol pump indicator, Multimeter. A computer that performs calculations and logical operations with quantities represented as digits, usually in the binary number system.

A combination of computers those are capable of inputting and outputting in both digital and analog signals. A hybrid computer system setup offers a cost effective method of performing complex simulations.

The instruments used in medical science lies in this category.

The fastest type of computer. Supercomputers are very expensive and are employed for specialized applications that require immense amounts of mathematical calculations. For example, weather forecasting requires a supercomputer. Other uses of supercomputers include animated graphics, fluid dynamic calculations, nuclear energy research, and petroleum exploration. A very large and expensive computer capable of supporting hundreds, or even thousands, of users simultaneously. In the hierarchy that starts with a simple microprocessor in watches, for example at the bottom and moves to supercomputers at the top, mainframes are just below supercomputers.

Handbook For Computer Hardware (Tamil)

In some ways, mainframes are more powerful than supercomputers because they support more simultaneous programs. But supercomputers can execute a single program faster than a mainframe.

A midsized computer. In size and power, minicomputers lie between workstations and mainframes. In the past decade, the distinction between large minicomputers and small mainframes has blurred, however, as has the distinction between small minicomputers and workstations.

But in general, a minicomputer is a multiprocessing system capable of supporting from 4 to about users simultaneously. Generally, servers are comes in this category.

Desktop Computer: Laptop Computer: It is generally smaller in size than a desktop computer and larger than a notebook computer.

Palmtops have no keyboard but the screen serves both as an input and output device.

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A terminal or desktop computer in a network. In this context, workstation is just a generic term for a user's machine client machine in contrast to a "server" or "mainframe.

As specified earlier Software, simply are the computer programs. The instructions given to the computer in the form of a program is called Software. Software is the set of programs, which are used for different purposes. All the programs used in computer to perform specific task is called Software. Office , Ms.

Operating system is an interface between hardware and user which is responsible for the management and coordination of activities and the sharing of the resources of a computer. It hosts the several applications that run on a computer and handles the operations of computer hardware. Pronounced uoo-niks, a popular multi-user, multitasking operating system developed at Bell Labs in the early s.

UNIX was one of the first operating systems to be written in a highlevel programming language, namely C. This meant that it could be installed on virtually any computer for which a C compiler existed. Pronounced lee-nucks or lih-nucks. A freely-distributable open source operating system that runs on a number of hardware platforms. The Linux kernel was developed mainly by Linus Torvalds and it is based on Unix. Because it's free, and because it runs on many platforms, including PCs and Macintoshes, Linux has become an extremely popular alternative to proprietary operating systems.

Microsoft Windows is a series of graphical interface operating systems developed, marketed, and sold by Microsoft.

The most recent client version of Windows is Windows 7; the most recent server version is Windows Server R2; the most recent mobile version is Windows Phone 7. Solaris is a Unix operating system originally developed by Sun Microsystems. It superseded their earlier SunOS in Oracle Solaris, as it is now known, has been owned by Oracle Corporation since Oracle's acquisition of Sun in January This release aims more at the security part and comes with an easy to use application to harden your Desktop.

Mobile OS: A mobile operating system, also called a mobile OS, is an operating system that is specifically designed to run on mobile devices such as mobile phones, smartphones, PDAs, tablet computers and other handheld devices.

The mobile operating system is the software platform on top of which other programs, called application programs, can run on mobile devices. Android is a Linux-based mobile phone operating system developed by Google. Android is unique because Google is actively developing the platform but giving it away for free to hardware manufacturers and phone carriers who want to use Android on their devices. Symbian is a mobile operating system OS targeted at mobile phones that offers a high-level of integration with communication and personal information management PIM functionality.

Symbian OS combines middleware with wireless communications through an integrated mailbox and the integration of Java and PIM functionality agenda and contacts. The Symbian OS is open for third-party development by independent software vendors, enterprise IT departments, network operators and Symbian OS licensees.

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Since a computer hardware is capable of understanding only machine level instructions, So it is necessary to convert the HLL into Machine Level Language. There are three Language processors:. It is translator which converts the HLL language into machine language in one go. It is a translator which converts and executes the HLL language code line by line.

It takes one statement of HLL and converts it into machine code which is immediately executed.

Hardware and Software

However, It is slow in processing as compare to compiler. A register is a very small amount of very fast memory that is built into the CPU central processing unit in order to speed up its operations by providing quick access to commonly used values.

All data must be represented in a register before it can be processed. For example, if two numbers are to be multiplied, both numbers must be in registers, and the result is also placed in a register. A collection of wires through which data is transmitted from one part of a computer to another. You can think of a bus as a highway on which data travels within a computer. For example, a video game, which is software, uses the computer processor CPU , memory RAM , hard drive , and video card to run.

Word processing software uses the computer processor, memory, and hard drive to create and save documents. Hardware is what makes a computer work.

A sound card can provide sound to speakers , and a video card can provide an image to a monitor. Each of these are examples of hardware components. Can a computer run without software? In most situations, yes, a computer can run without software being installed.A server is engineered to manage, store, send and process data hours a day it has to be more reliable than a desktop computer and offers a variety of features and hardware not typically used in the average desktop computer.

The most common and very popular input device which helps in inputting data to the computer. The memory from which we can only read but cannot write on it. RAM is volatile. It is permanent in nature.

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