Tuesday, January 11, 2011

Some Interesting facts:

1. While it took the radio 38 years, and the television a short 13 years, it took the World Wide Web only 4 years to reach 50 million users.

2. The world's first computer, called the Z1, was invented by Konrad Zuse in 1936. His next invention, the Z2 was finished in 1939 and was the first fully functioning electro-mechanical computer.

3. "Stewardesses" is the longest word that is typed with only the left hand.

4. Bill Gates' house was designed using a Macintosh computer.

5. In the 1980s, an IBM computer wasn't considered 100 percent compatible unless it could run Microsoft Flight Simulator.

6. The first computer mouse was invented by Doug Engelbart in around 1964 and was made of wood.

7. Another name for a Microsoft Windows tutorial is 'Crash Course'

8. An Amd 1400 chip running without a heatsink gets as hot as 370 degrees.

9. The most expensive game ever developed was "ShenMue" for sega dreamcast.It costs $20 million.

10. Top Ten Supercomputers of Today:-
Arranged according to the speed:-
1. Bluegene/L DD2 Beta-system(IBM).
2. Columbia (NASA).
3. Earth Simulator (NEC).
4. MareNostrum(Barcelona Supercomputer Center).
5. Thunder (Lawrence Livermore National Laboratory).
6. ASCI Q(Los Alamos National Laboratory).
7. System X(Virgina Tech).
8. Blugene/L DD1 Prototype(IBM).
9. eServer pSeries 655 cluster(Naval Oceanographic Office).
10. Tungsten(National Center For Supercomputing Applications).

11. What does 50 G.B of storage really mean?It means we can stack 3 piles of
single spaced type written pages taller than the Eiffel tower and data to
support this information is about 50 gigabytes.

12. The code name for the 12 engineers who designed the IBM pc was :-
'The dirty dozen'.

13. Isk drive recording head fly height (gap between the head and disc when the drive is spinning ) is less than 1 microinch while:-

A red blood cell is 300 microinches is diameter.
A particle of tobacco smoke is 250 microinches.
A particle of smog is 100 microinches.
A human hair is 4000 microinches.

14. 128 bit SSL encryption is so strong that it would take much , much longer than the age of universe to crack a message encrypted using it.Even 20 years from now, if computers are a million times faster. it would still take longer than the age of the universe to crack it.

15. South korea's SK telecom offers an inaudible ring tone to its customers which, it claims, can repel mosquitoes.

16. In 1971, the first speech recognition software named, "Hearsay" was developed in India.

17. A program named “Rother J” was the first computer virus to come into sight “in the wild” — that is, outside the single computer or lab where it was created. Created in 1981 by Richard Skrenta, it attached itself to the Apple DOS 3.3 operating system and spread via floppy disk. This virus was created as a practical joke when Richard Skrenta was still in high school. It was injected in a game on a floppy disk. On its 50th use the Elk Cloner virus would be activated, infecting the computer and displaying a short poem beginning “Elk Cloner: The program with a personality.”

18. The computer mouse, the windowing GUI, laser printing, and the network card were all developed at one company; Xerox in Palo Alto, California.

19. The popular programming language COBOL was invented by Admiral Grace Hopper, the first female admiral in the US Navy.

20. The term ‘booting’ or ‘bootstrapping’ a computer derives from the story of Baron Munchhausen who at one instance, pulled himself out of a swamp by the straps on his boots.

Monday, January 10, 2011

application software


Application software, also known as an application or an "app", is computer software designed to help the user to perform singular or multiple related specific tasks. It helps to solve problems in the real world. Examples include enterprise software, accounting software, office suites, graphics software, and media players.

Application software is contrasted with system software and middleware, which manage and integrate a computer's capabilities, but typically do not directly apply them in the performance of tasks that benefit the user. A simple, if imperfect, analogy in the world of hardware would be the relationship of an electric light bulb (an application) to an electric power generation plant (a system). The power plant merely generates electricity, not itself of any real use until harnessed to an application like the electric light that performs a service that benefits the user.

Application software classification

There are many types of application software:

  • An application suite consists of multiple applications bundled together. They usually have related functions, features and user interfaces, and may be able to interact with each other, e.g. open each other's files. Business applications often come in suites, e.g. Microsoft Office, OpenOffice.org, and iWork, which bundle together a word processor, a spreadsheet, etc.; but suites exist for other purposes, e.g. graphics or music.
  • Enterprise software addresses the needs of organization processes and data flow, often in a large distributed environment. (Examples include financial systems, customer relationship management (CRM) systems, and supply-chain management software). Note that Departmental Software is a sub-type of Enterprise Software with a focus on smaller organizations or groups within a large organization. (Examples include Travel Expense Management, and IT Helpdesk)
  • Enterprise infrastructure software provides common capabilities needed to support enterprise software systems. (Examples include databases, email servers, and systems for managing networks and security.)
  • Information worker software addresses the needs of individuals to create and manage information, often for individual projects within a department, in contrast to enterprise management. Examples include time management, resource management, documentation tools, analytical, and collaborative. Word processors, spreadsheets, email and blog clients, personal information system, and individual media editors may aid in multiple information worker tasks.
  • Content access software is software used primarily to access content without editing, but may include software that allows for content editing. Such software addresses the needs of individuals and groups to consume digital entertainment and published digital content. (Examples include Media Players, Web Browsers, Help browsers, and Games)
  • Educational software is related to content access software, but has the content and/or features adapted for use in by educators or students. For example, it may deliver evaluations (tests), track progress through material, or include collaborative capabilities.
  • Simulation software are computer software for simulation of physical or abstract systems for either research, training or entertainment purposes.
  • Media development software addresses the needs of individuals who generate print and electronic media for others to consume, most often in a commercial or educational setting. This includes Graphic Art software, Desktop Publishing software, Multimedia Development software, HTML editors, Digital Animation editors, Digital Audio and Video composition, and many others.[2]
  • Mobile applications run on hand-held devices such as mobile phones, personal digital assistants, and enterprise digital assistants : see mobile application development.
  • Product engineering software is used in developing hardware and software products. This includes computer aided design (CAD), computer aided engineering (CAE), computer language editing and compiling tools, Integrated Development Environments, and Application Programmer Interfaces. YUH ZEIT * A command-driven interface is one in which you type in commands to make the computer do something. You have to know the commands and what they do and they have to be typed correctly. DOS and Unix are examples of command-driven interfaces.
  • A graphical user interface (GUI) is one in which you select command choices from various menus, buttons and icons using a mouse. It is a user-friendly interface. The Windows and Mac OS are both graphical user interfaces

Regarding posts !

Hey guys this blog is created for sharing knowledge about various stuffs and debating on various topics .. It is not necessary that you should only post stuffs related to microprocessor you can  post many other stuffs too like puzzles,tech updates etc apart from subject point of view..

Hope you understood me friends hoping to learn many new things not just only related to subject but about everything..

Thanks :)

Sabir

Sunday, January 9, 2011

intel i7 processor

BEST-IN-CLASS PERFORMANCE
2nd Generation Intel® Core™ i7 Processor
The Intel® Core™ i7 processor delivers best-in-class performance for the most demanding applications. This quad-core processor features 8-way multitasking capability and additional L3 cache. With adaptive performance and built-in visual capabilities this 2nd generation processor brings more intelligence to your PC.
2nd generation Intel® Core™ i7 processors feature Intel® Turbo Boost Technology 2.0◊ and Intel® Hyper-Threading TechnologyΔ, enabling required security applications and protocols to run efficiently in the background without compromising productivity.
Today's more visually sophisticated communication needs will be met with Intel® HD Graphics 2000 Technology, integrated into 2nd generation Intel Core processors. This eliminates the need for a discrete graphics card, reducing power consumption and system cost.


FEATURES AND BENEFITS
With 2nd generation Intel Core i7 processors, you get the following features built in:
Intel® Turbo Boost Technology 2.0◊ dynamically increases the processor frequency as needed by taking advantage of thermal and power headroom when operating below specified limits.
Intel® HT TechnologyΔ allows each core of your processor to work on two tasks at the same time.
Intel® Smart Cache is dynamically allocated to each processor core based on workload, which significantly reduces latency and improves performance.
Advanced Encryption Standard New Instructions add hardware acceleration to AES algorithms and speeds up the execution of AES applications.

Microprocessor-Simplified Model

Microprocessor: Simplified Model

Arithmetic & Logic Unit (ALU)

The part of the central processing unit that deals with operations such as addition, subtraction and multiplication of integers and boolean operations. It receives control signals from the control unit telling it to carry out these operations.

Control Unit (CU)

It controls the movement of instructions in and out of the processor, and also controls the operation of the ALU. It consists of a decoder, control logic circuits, and a clock to ensure everything happens at the correct time. It is also responsible for performing the instruction execution cycle.

Register Array

It is a small amount of internal memory that is used for the quick storage and retrieval of data and instructions. All processors include some common registers used for specific functions, namely the program counter, instruction register, accumulator, memory address register and stack pointer.

System Bus

It is comprised of the control bus, data bus and address bus. It is used for connections between the processor, memory and peripherals, and transfer of data between the various parts.

Memory

The memory is not an actual part of the CPU itself, and is instead housed elsewhere on the motherboard. However, it is here that the program being executed is stored, and as such is a crucial part of the overall structure involved in program execution.


Simulator for 8085 microprocessor

Guys... i found this 8085 simulator for wikipedia.....Try it n Enjoy ;)
http://8085simulator.codeplex.com/

about our results

Hai this is arvind vignesh...I heard that our results will be published after the pongal holidays..so see the website www.annauniv.edu for more information about our results.....