Notes for information technology

1. Information technology means the use of:
- hardware, software, services and supporting infrastructure to manage and deliver information using voice, data and video.

2. IT versus ICT
a) information is of no value if it is inaccessible. So, :
- it must be communicated and or displayed by using communication technology.
- thus, a better acronym is information and communication technology (ICT).

3. Functions of ICT's :
a) to capture - hardware (sound recorder, sensor etc).
b) to store - hardisk, cd, dvd.
c) to process - software (the os, ms office, spss, etc).
d) to display/communication/make a accessible - the screen, the network, etc.

Kelemahan iPad

Setakat ini, iPad hanya menyokong 9 bahasa sahaja iaitu Inggeris, Perancis, Jerman, Jepun, Belanda, Itali, Sepanyol, Cina (Simplified) dan Russsia. Sistem operasinya tidak menyokong pengendalian multi-tugasan (multi-function); pengguna tidak dapat menggunakan dua perisian serentak dalam satu masa.

Fungsi sambungan iPad jugak agak terhad. Ia TIADA port sambungan USB, alat pembaca kad, port HDMI, mahupun webcam. Hanya terdapat satu port sambungan diberi nama Dock Connector.

Kelebihan iPad

Syarikat Apple (Apple Inc.) akhirnya telah melancarkan produk Tablet PC diberi nama iPad yang telah lama dinanti-nantikan oleh peminat produk jenama Apple. Sebelum iPad dilancarkan, peminat-peminat produk Apple berharap supaya iPad dapat menandingi iPhone sebagai gajet digital yang terbaik dalam kelasnya. Namun, selepas iPad dilancarkan, ramai orang yang berasa kecewa dan mengatakan bahawa hanyalah iPod Touch / iPhone versi besar; tiada sebarang kreativiti, keunggulan atau beza.

Sebelum ini terdapat banyak gambar yang diwar-warkan sebagai iPad dipaparkan di internet, sesetengah rekaan betul-betul serupa dengan iPhone tetapi dalam versi yang lebih besar. Apabila CEO Syarikat Apple, Steve Jobs menunjukkan identiti sebenar iPad, ia memang merupakan versi besar untuk iPhone 2G; tetapi badannya lebih nipis, dengan ketebalan hanya 13.4mm, jauh lebih nipis daripada netbook atau Tablet PC lain yang sedia ada di pasaran. Dengan ketebalan sebagitu, ia mudah dibawa kemana sahaja dan sesuai digunapakai tidak kira samada anda pelajar, ahli perniagaan, eksekutif mahupun suri rumah.

Penerapan skrin multi-sentuhan

Dari segi fungsi dan spesifikasi, iPad amat menyerupai iPhone. Misalnya, terdapat fungsi accelerometer, multi-sentuhan dan banyak lagi. Tetapi skrinnnya bukan sahaja sebesar 9.7 inci, malahan ia turut menyokong resolusi XGA (1024 x 768 piksel), menggunakan panel IPS (intrusion prevention system), serta sudut penglihatan (viewing angle) setinggi 178 darjah; dimana pengguna dapat memperoleh efek yang jelas tanpa perlu memandang skrin secara menegak.

Selain itu, permukaan skrinnya disaluti lapisan kalis minyak “Fingerprint Resistant Oleophobic Coating”, berfungsi bagi mengurangkan kesan cap jari pada skrin. Fungsi pelarasan kecerahan automatik pula memastikan iPad sentiasa memaparkan kualiti yang terbaik.

HD 3D terhandal

Bagi meningkatkan fungsi iPad, pihak Apple telah menghasilkan prosesor baru diberi nama Apple A4. Prosesor ini mempunyai struktur ARM, frekuensinya mencapai 1GHz. Walaupun tidak dipasang dengan sistem operasi Mac OSX atau Windows, dengan sistem operasi yang khas, ia mampu berfungsi dengan lancar seperti iPhone.

Core paparan yang terbina dalam prosesor menyokong penyiaran video H.264 HD 720p. Selain itu, ia menyokong Open L; jika digunakan untuk permainan 3D seperti Need For SpeedL SHIFT, SNowCross dan lain-lain, kualitinya akan mendahului iPhone sekarang dengan agak berbeza dan menghampiri tahap PSP. iPad menggunakan Flash memory untuk menyimpan data dan membekalkan 3 pilihan kapasiti iaitu 16GB, 32GB dan 64GB.

Apakah itu iPad?

Mesti ramai yang masih tidak tahu apa itu iPad. Apakah itu iPad? Sebenarnya iPad merupakan gadget terbaru yang dilancarkan oleh Apple dimana fungsi utamanya adalah sebagai e-Book Reader. Dengan adanya iPad, kita boleh membaca e-Book dimana-mana sahaja dan bila-bila masa. Selain sebagai e-Book Reader, iPad juga boleh berfungsi sebagaimana sebuah PC, iaitu kita boleh mendengar muzik, menonton filem, mengakses facebook, twitter dan surfing di dunia maya.

Kelebihan iPad

1) Bentuk dan penampilan yang menarik, denan layar 9.7-inch LED, iPad boleh dibawa kemana- mana sahaja.

2) Daya tahan bateri yang cukup lama- mampu bertahan 10 jam.

3) Bagi yang gemar berFacebook, Twitter, Maps, Youtube, iTune, Mail, dan Safari maka iPad merupakan sesuatu yang menarik untuk dimiliki.

Kekurangan iPad

1) No Real Multi Tasking - iaitu tidak boleh akses pelbagai aplikasi pada masa yang sama. Ia harus dilakukan satu- persatu.

2) Tidak mempunyai kamera.

3) Belum dapat Support Flash.

Hardware

Screen and input
The iPad's touchscreen display is a 25 cm (9.7 in) liquid crystal display (1024 × 768 pixels) with fingerprint-resistant and scratch-resistant glass. Like the iPhone, the iPad is designed to be controlled by bare fingers; normal gloves and styli that prevent electrical conductivity may not be used, although there are special gloves and styli designed for this use.

The display responds to two other sensors: an ambient light sensor to adjust screen brightness and a 3-axis accelerometer to sense iPad orientation and switch between portrait and landscape modes. Unlike the iPhone and iPod touch built-in applications, which work in three orientations (portrait, landscape-left and landscape-right), the iPad built-in applications support screen rotation in all four orientations (the three aforementioned ones along with upside-down),[31] meaning that the device has no intrinsic "native" orientation; only the position of the home button changes.

The iPad has a switch to lock out this screen rotation function (reportedly to prevent unintended rotation when the user is lying down).[32] There are a total of four physical switches, including a home button below the display that returns the user to the main menu, and three plastic physical switches on the sides: wake/sleep and volume up/down, along with the screen rotation lock.

Connectivity
The iPad can use Wi-Fi network trilateration from Skyhook Wireless to provide location information to applications such as Google Maps. The 3G model contains A-GPS to allow its position to be calculated with GPS or relative to nearby cellphone towers; it also has a black plastic accent on the back side to improve 3G radio sensitivity.

For wired connectivity, the iPad has has a dock connector; it lacks the Ethernet and USB ports of larger computers.

Audio and output
The iPad has two internal speakers that push mono sound through two small sealed channels to the three audio ports carved into the bottom-right of the unit. A volume switch is on the right side of the unit.

A 3.5-mm TRS connector audio-out jack on the top-left corner of the device provides stereo sound for headphones with or without microphones and/or volume controls.

The iPad also contains a microphone that can be used for voice recording.

The built-in Bluetooth 2.1 + EDR interface allows wireless headphones and keyboards to be used with the iPad. However, the iOS does not currently support file transfer via Bluetooth. iPad also features 1024 x 768 VGA video output for connecting an external display or television.

History

Apple's first tablet computer was the Newton MessagePad 100, introduced in 1993, which led to the creation of the ARM6 processor core with Acorn Computers. Apple also developed a prototype PowerBook Duo-based tablet, the PenLite, but in order to avoid hurting MessagePad sales did not sell it. Apple released several more Newton-based PDAs, and discontinued the last, the MessagePad 2100, in 1998.

Apple re-entered the mobile-computing market in 2007 with the iPhone. Smaller than the iPad but featuring a camera and mobile phone, it pioneered the multitouch finger-sensitive touchscreen interface of Apple's mobile operating system—iOS. By late 2009, the iPad's release had been rumored for several years. Mostly referred to as "Apple's tablet", iTablet and iSlate were among the speculated names. The iPad was announced on January 27, 2010 by Steve Jobs at an Apple press conference at the Yerba Buena Center for the Arts in San Francisco.

http://en.wikipedia.org/wiki/IPad

What is iPad?

The iPad is a tablet computer designed and developed by Apple. It is particularly marketed for consumption of media such as books and periodicals, movies, music, and games; and for general web and e-mail access. At about 700 grams, its size and weight are between most contemporary smartphones and laptop computers. Apple sold 3 million iPads in the first 80 days after its April 2010 release.

The iPad runs the same operating system as the previously introduced iPod Touch and iPhone, although as of summer 2010, it was a version behind: iOS 3.2.1, with an update to iOS 4 expected in fall 2010. It can run its own specific applications as well as those developed originally for the iPhone. Without modification, it will only run programs approved by Apple and distributed via its online store.

Like iPhone and iPod Touch, the iPad is controlled by a multitouch display sensitive to up to eleven fingers — a break from most previous tablet computers, which used a pressure-triggered stylus. The iPad uses Wi-Fi or a 3G mobile data connection to browse the Internet, load and stream media, and install software. A USB cable is required to sync the iPad with iTunes on a personal computer, by which the device is managed.

Media reaction to the device has generally been neutral or positive, with more positive reaction after the device was launched.

http://en.wikipedia.org/wiki/IPad