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Wednesday, October 7, 2009

DiFFeReNT BeTWeeN MaCiNToSH N MiCRoSoFE


Microsoft Windows

Microsoft Windows is a series of software operating systems and graphical user interfaces produced by Microsoft. Microsoft first introduced an operating environment named Windows in November 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces (GUIs).[1] Microsoft Windows came to dominate the world's personal computer market, overtaking Mac OS, which had been introduced previously. At the 2004 IDC Directions conference, it was stated that Windows had approximately 90% of the client operating system market.[2] The most recent client version of Windows is Windows Vista; the most recent server version is Windows Server 2008. Vista's successor, Windows 7 (currently at release to manufacturing), is scheduled to be released on October 22, 2009.


MACINTOSH

Macintosh, or Mac, is a series of several lines of personal computers designed, developed, and marketed by Apple Inc. The Macintosh was introduced on January 24, 1984; it was the first commercially successful personal computer to feature a mouse and a graphical user interface rather than a command-line interface.

Through the second half of the 1980s, the company built market share only to see it dissipate in the 1990s as the personal computer market shifted towards IBM PC compatible machines running MS-DOS and Microsoft Windows. Apple consolidated multiple consumer-level desktop models into the 1998 iMac all-in-one, which was a sales success and saw the Macintosh brand revitalized. Current Mac systems are mainly targeted at the home, education, and creative professional markets. They are: the aforementioned (though upgraded) iMac and the entry-level Mac mini desktop models, the workstation-level Mac Pro tower, the MacBook, MacBook Air and MacBook Pro laptops, and the Xserve server.

Production of the Mac is based on a vertical integration model in that Apple facilitates all aspects of its hardware and creates its own operating system that is pre-installed on all Mac computers. This is in contrast to most IBM PC compatibles, where multiple sellers create hardware intended to run another company's software. Apple exclusively produces Mac hardware, choosing internal systems, designs, and prices. Apple does use third party components, however; current Mac CPUs use Intel's x86 architecture. Previous models used the AIM alliance's PowerPC and early models used Motorola's 68k. Apple also develops the operating system for the Mac, currently Mac OS X version 10.5 "Leopard". The modern Mac, like other personal computers, is capable of running alternative operating systems such as Linux, FreeBSD, and Microsoft Windows, though other computers cannot normally run Mac OS X.

RaDiO CoRPoRaTION OF AMeRICA

U.S. RADIO COMPANY
In 1919, General Electric (GE) formed a privately owned corporation to acquire the assets of the wireless radio company American Marconi from British Marconi. The organization, known as the Radio Corporation of America or RCA, was formally incorporated on 17 October of that year. Shortly thereafter, American Telephone and Telegraph (AT and T) and Westinghouse acquired RCA assets and became joint owners of RCA. In 1926, RCA formed a new company, the National Broadcasting Company (NBC), to oversee operation of radio stations owned by RCA, General Electric, Westinghouse and AT and T.
In the early 1930's, the Justice Department filed an antitrust suit against the company. In a 1932 consent decree, the organization's operations were separated and GE, AT and T, and Westinghouse were forced to sell their interests in the company. RCA retained its patents and full ownership of NBC. Shortly after becoming an independent company, RCA moved into new headquarters in the Rockefeller Center complex in New York City, into what later became known as Radio City.
While other American companies were cutting back on research expenditures during the depression years, David Sarnoff, President of RCA since 1930, was a staunch advocate of technological innovation. He expanded RCA's technology research division, devoting increased resources to television technology. Television pioneer Vladimir Zworykin was placed in charge of RCA's television research division. RCA acquired competing and secondary patents related to television technology, and once the organization felt that the technology had attained an appropriate level of refinement, it pushed for commercialization of the new medium.
In 1938, RCA persuaded the Radio Manufacturers Association (RMA) to consider adoption of its television system for standardization. The RMA adopted the RCA version, a 441 line, 30 pictures per second system, and presented the new standard to the FCC on 10 September 1938. Upon the recommendation of the RMA, the Federal Communications Commission (FCC) scheduled formal hearings to address the adoption of standards. The hearings, however, did not take place until January 1940.
In the interim, RCA began production of receivers and initiated a limited schedule of television programming from the New York transmitters of the National Broadcasting Corporation (NBC) basing their service upon the RMA-RCA standards. The service was inaugurated in conjunction with the opening of the New York World's Fair on 30 April 1939 and continued throughout the year. At the commission's hearing addressing standards on 15 January 1940, opposition to the proposed RMA standards emerged. The two strongest opponents of the standard were DuMont Laboratories and Philco Radio and Television. One of the criticisms voiced by both organizations was the assertion that the 441 line standard did not provide sufficient visual detail and definition. Given the lack of a clear industry consensus, the Commission did not act on the proposed RMA standards. Despite the absence of official approval, RCA continued to employ the RMA standards and announced plans in early 1940 to increase production of television receivers, cut the price to consumers by one-third, and double their programming schedule. While some commentators saw this as a reasonable and progressive action, the Commission perceived it as a step towards prematurely freezing the standards in place, and as a consequence, scheduled another set of public hearings for 8 April 1940. At these hearings, opponents argued that the action taken by RCA was stifling research and development into other alternative standards. As a result of the hearings, the Commission eliminated commercial broadcasting until further development and refinement had transpired. Furthermore, the Commission asserted that commercialization of broadcasting would not be permitted until there was industry consensus and agreement on one common system. To marshal industry wide support for a single standard, the RMA formed the National Television System Committee (NTSC). The NTSC standards, a 525 line, 60 fields per second system, were approved by the FCC in 1941.
Several years later, RCA also became a major participant in the establishment of color television standards. In 1949, the organization proposed to the FCC that its dot sequential color system, which was compatible with existing black and white receivers, be adopted as the new color standard. Citing shortcomings in the compatible systems offered by RCA and other organizations, the FCC opted to formally adopt an incompatible color system offered by the Columbia Broadcasting System as the color standard. RCA appealed this decision all the way to the Supreme Court, while simultaneously refining their color system. A second NTSC was formed to examine the color issue. In 1953, the FCC reversed itself and endorsed a modified version of the RCA dot sequential system compatible color system offered by the NTSC.
In the 1950s, RCA continued the military and defense work in which it had been heavily engaged during World War II. In the late 1950s and early 1960s, the company became involved with both satellite technology and the space program. During the 1960s, RCA began to diversify as the company acquired such disparate entities as the publishing firm Random House, and the car rental company Hertz. Throughout the 1970s and early 1980s, RCA began to divest itself of many of its acquired subsidiaries. In June 1986, RCA was acquired by General Electric, the organization that had originally established it as a subsidiary. GE retained the brand name RCA, established NBC as a relatively autonomous unit, and combined the remainder of RCA's businesses with GE operations.

RiLEK POrTaL

RILEK PORTAL

eServices with RILEKeServices is one of the six Malaysia’s Electronic Government Flagship Applications. In conjunction with the said initiative, KOMMS introduces RILEK to provide innovative online solutions and direct system linkages to JPJ, TNB, Telekom and various financial institutions. These provide us an edge in online payment authorization and multiple services integration.RILEK provides different options for you, either through our user-friendly kiosks located widely, our website at www.rilek.com.my or RILEK Center, within one host; serving the same purpose. RILEK is the revolutionary way to perform all your Jabatan Pengangkutan Jalan (JPJ), Telekom Malaysia Berhad (TMB) transactions electronically via various delivery channels. RILEK offers JPJ Driving Licensing services, summons payment and inquiries on Kejara Points. Our services include electronic utility bill payment for TNB and Telekom bills. You can complete all your billing payments and inquiries from anywhere.

FUTURE PLANS Besides existing collaborations with the above agencies, RILEK envisions expanding our services to other government agencies soon. Plans are being developed for immediate implementations to make a difference to your lifestyle. In the near future, you will be able to utilize the Government Multi Purpose Card (GMPC) and ATM cards to complete your payment transactions.

* Introducing RILEK as the revolutionary way to perform all your e-government services:
* Jabatan Pengangkutan Jalan (JPJ)
* Polis DiRaja Malaysia (PDRM)
* Telekom Malaysia Berhad (TMB)
* Tenaga Nasional Berhad (TNB)
* We provide easy transactions electronically via various delivery channels.
* RILEK offers JPJ Driving Licences services, summons payments and inquiries on Kejara points.
* Our services include electronic utility bill payment for TNB and Telekom bills.
* RILEK represent reliability, simplicity and security. RILEK is equipped with high-end multimedia facilities and system support to accommodate heavy traffic flow. In addition, it is capable of processing information at an efficient and high-speed rate. RILEK promotes a hassle-free and innovative lifestyle that is designed to eliminate queues and frustrations. RILEK combines advanced technology and human proficiency to enhance your lifestyle.


MYEG

MyEG Services Berhad is a concessionaire for the Malaysian E-Government MSC Flagship Application. MyEG role as a Service Provider for the E-Services component essentially provides the electronic link between the Government and citizens/businesses. Through MyEG portal, MyEG offer the Malaysian public a single point of contact between the Government and the people it serves. MyEG portal enables Malaysians to dynamically interact with numerous agencies within the Federal, State and the Local Government machinery providing services ranging from information searches to licence applications. To cater the services which require physical presence/interaction, MyEG has set up E-Service Centres located throughout the country to complement our online presence. We believe that through this dual approach, we can enhance the relationship and quality of interaction between the Government of Malaysia and it’s citizens.
MyEG Services has established the electronic link between the Government and citizens/businesses. This website enables the Malaysian public a single point of contact between the Government and the people it serves. There are a few other services currently being offered at the website.

DATA SEGERAK N TAK SEGERAK!

Data Tak Segerak

  • boleh mengelakkan masalah timing dgn tidak menghantar arus bit berterusan tanpa henti
  • data yang dihantar ialah 1 character setiap masa.1 character =5-8 bit
  • penerima boleh meyegerak pada permulaan setiap character
  • permulaan character iaitu bit mula ialah 0
  • kebaikan data tak segerak mudah dan mudah

Data Segerak

  • sejenis penghantaran data yang berterusan tanpa bit start dan stop
  • saiz blok data boleh mengandungi banyak bit
  • untuk mengelakkan perbezaan timing antara penghantar dan penerima, perlu penyegerakkan jam
  • penghantaran segerak memerlukan tahap kesegerakkan yang berbeza supaya penerima mengetahui tentang mula dan berakhirnya sutu blok data
  • blok data dimulakan dgn turutan bit preamble,diakhiri dgn turutan bit postamble
  • penghantaran data segerak lebih efisyen untuk data besar