computer science

Nokia N800

Nokia N800 is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Nokia N800 rather than just read about it. In short: The Nokia N800 Internet tablet was a wireless Internet appliance from Nokia, originally announced at the Las Vegas CES 2007 Summit in January 2007. The device allows the user to browse the Internet and communicate using Wi-Fi networks or with mobile phone via Bluetooth.

Key takeaways

Nokia N800 belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Nokia N800 to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Nokia N800 from memory before moving on to harder problems.

Reference excerpt

The Nokia N800 Internet tablet was a wireless Internet appliance from Nokia, originally announced at the Las Vegas CES 2007 Summit in January 2007. The device allows the user to browse the Internet and communicate using Wi-Fi networks or with mobile phone via Bluetooth. The N800 was developed as the successor to the Nokia 770. It includes FM and Internet radio, an RSS news reader, image viewer and a media player for audio and video files.

Specifications Processor: OMAP2420 microprocessor with a native speed of 400 MHz Runs at an underclocked 330 MHz on OS2007, because the DSP speed will be halved if run at full speed Runs at the native 400 MHz on OS2008. Memory: 128 MiB of RAM and 256 MiB of flash memory. Connectivity: IEEE 802.11 b/g, Bluetooth 2.0 (DUN, OPP, FTP, HFP, HID profiles as well as A2DP/AVRCP and PAN via third party emulation), and USB 2.0 OTG high-speed. Display & resolution: pressure-sensitive resistive touch-screen LCD 4.1 inches 800×480 pixels at 225 dpi (the same as the 770.) includes PowerVR MBX acceleration, but the operating system does not include a device driver Expansion: 2 full-sized Secure Digital card slots, one internal and one external, each accommodating one card up to 32 GB capacity when using SDHC. Only cards up to 8 GB are officially supported by Nokia. Camera: built-in pop-up rotating webcam. (note the camera does not rotate a full 360 degrees). Audio: microphone, stereo speakers, FM radio tuner, 3.5-mm headphone jack (compatible with standard stereo headphones, but also containing a fourth pin with microphone input). The headphone jack also functions as the antenna for the FM radio. Operating system: Linux-based Internet Tablet OS 2007. In December 2007 the new OS 2008 was released for the Nokia N800 and the Nokia N810. The N800 supports Skype internet calls and Flash Player 9 as of 6 July 2007, which allows users to watch YouTube videos, play online flash games, and make free internet calls to other Skype-enabled devices. Note that the USB port uses a mini-B socket instead of mini-AB so that a specially grounded adaptor is required to make full use of the USB OTG client/host auto-switching. Switching can be done in software with regular adaptors, though. USB OTG only provides 100 mA of current (versus full-size USB's 500 mA), so devices with larger current requirements will need to be used with a powered USB hub.

Maemo

The N800, like all Nokia Internet Tablets, ran Maemo, which was similar to many handheld operating systems, and provided a "Home" screen—the central point from which all applications and settings are accessed. The Home screen was divided into areas for launching applications, a menu bar, and a large customisable area that can display information such as an RSS reader, Internet radio player, and Google search box for example. Maemo was a modified version of Debian. The N800 was bundled with several applications including the Mozilla-based MicroB browser, Macromedia Flash, Gizmo, and Skype. The N800 used Maemo OS that comes with a number of built-in applications, but additional applications can be installed from a number of sources, including various official and community.

Illustrations

Worked examples

Example 1 — a first encounter with Nokia N800

Start with the simplest possible case. Write down what Nokia N800 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Nokia N800 before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Nokia N800 ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Nokia N800

In research: Nokia N800 appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Nokia N800 in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Nokia N800 is common in secondary-school and first-year university syllabi. It links to neighbouring topics Computer-related introductions in 2007, Embedded Linux, Linux-based devices, so understanding it makes those chapters shorter.
In everyday life: Look for Nokia N800 outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Nokia N800 in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Nokia N800 means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Nokia N800 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Nokia N800 in simple terms?

Why does Nokia N800 matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Nokia N800?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Nokia N800.