Notebook instead of the desktop PC

Evgenie Rudometov

http://www.rudometov.com

Company Fujitsu-Siemens Computers has developed and has released the bar of compact, powerful, multimedia notebooks with the integrated functions of wireless communication WLAN and possessing large-format matrix LCDTFT of a high-resolution. The given transportable computers capable in many cases to substitute traditional desktop systems, have received name AMILOM

Despite short of history of computers, today it is already difficult to imagine a life without these arrangements. They have received a wide circulation practically in all spheres of human activity. It both defence, and the industry, both medicine, and derivation. And thanks to the transportable resources which have become recently traditional for architecture of modern systems, computers began to use actively and in audio and video information processing.

Added with the special hardware-software resources providing Internet connection, computers become access centres to specialised sites, libraries, databases. Besides, the given arrangements are also the centres of high-speed link successfully substituting traditional mail.

However the construction, dimensions and weight of desktop systems do not admit their transportable usage. The requirement for portable arrangements is extremely high. It is linked by that a considerable part of the corporate users, forced long time to lead out of office and the house, the requirement for constant access to informational resources, and also to resources of office operation, including e-mail and the Internet feels.

For such users laptops of type a notebook are the optimal choice providing a high-scale of mobility. Transportable computers became usual arrangements of an active part of employees of numerous corporations as thanks to successes of computer processing techniques the weight of laptops step-by-step decreases from year to year.

Such computer gives possibility of operation with documents in separation from stationary office computer. Here it is necessary to mark, that for notebooks rather long there were problems with rather low time of the standalone functioning limited on the one hand in size of the secondary generator, with another — energopotrebleniem units entering into their structure. But step-by-step the problem dares. Thanks to resources energosberezhenija, vigorously inserted in the architecture modern transportable, and recently and desktop systems, computers began to spend economically the electric power. It provides for notebooks the raised operating time from accumulator batteries. In addition, with the advent of transportable processors of Pentium M with kernels Banias (1 Mb) and more perfect Dothan (2 Mb) has considerably increased productivity, that in some cases allows to compete to desktop systems successfully.

Fujitsu-Siemens AMILO M 1420

For changeover of desktop computers company Fujitsu-Siemens Computers has created notebook AMILO M1420, combining ample opportunities for operation and rest. It is supplied by the large-format screen. Provides excellence of a drawing and the expanded connectivities. Notebooks AMILO M optimally approach for review of the newest films on DVD-disks, hooking up of peripheral devices or digital cameras for editing of photos. Increased time of offline work gives long time for operation and games. Appearance of notebook Fujitsu-Siemens AMILO M 1420 is presented in a Fig. 1.

Fig. 1. Notebook Fujitsu-Siemens AMILO M 1420

Application of the powerful transportable processor of Intel of Pentium M allows to combine high values energoekonomichnosti and productivity in calculations. It is provided by the optimal architecture of kernel Dothan providing presence of the cache memory of great volume – L2 = 2048 Kbytes, the high-speed bus of 400 MHz, and also nearby original energosberegajushchih processing techniques. Processor operation is fulfilled in several frequency modes with respective alteration of levels of a supply voltage of a kernel. And, as is known, energy consumption by that processor more than above a supply voltage and frequency of operation. By the way, productivity of the processor depends on frequency, and, therefore, and all system. But these parametres can be reduced automatically in case of performance of simple tasks and to raise at difficult variants. It is necessary to add, that not involved units and subsystems of a kernel of the processor either are disabled, or are in a sleeping mode with minimum energopotreblenii. Such tactics saves a considerable share of energy of the secondary generator and provides increase in time of offline work.

This economic functioning is supported by the special chipset of system logic of the set of Intel  855. It provide an optimum behaviour of the processor and will organise teamwork of subsystems of the transportable computer. This set is specially developed for transportable solutions and provides usage of high-powered memory DDR SDRAM. By the way, memory cells also as well as the processor work in energosberegajushchih modes. As a result of their implementation in each instant only the involved units actively function, the others are in a sleeping mode at minimum energopotreblenii.

Fig. 2. The arrangements which are a part of notebook Fujitsu-Siemens AMILO M 1420

Usually in notebooks from Intel 855 the drawing built in a chip set uses, however in AMILO M 1420 the separate videoadapter on chip ATI (a Fig. 2) is used. It, by the way, provides very much productivity high level.

The built in resources of wireless access, components third after the processor and a chip set to a component of processing technique of Intel Centrino, provide high-speed data transfer under standard IEEE 802.11.b/g in allowed band of presence of points of "hot" access (Hot Spot). Link are usually accessible on a distance in some tens metres, and on open space — an order of hundred metres, but in some cases — can be and more.

All specified built in resources provide productivity high levels, energoekonomichnosti and mobility. Key parametres of computer Fujitsu-Siemens AMILO M 1420 are resulted in Table 1.

Table 1. Key parametres of computer AMILO M 1420

Such computers as Fujitsu-Siemens AMILO M 1420 into which structure modern audio and video controllers, and also high-speed ports and buses of hooking up of peripherals are integrated, are capable not only to fulfil traditional office functions, but even to handle the multimedia information, including audio and video data. To save the information it is possible not only on a hard disk of high size, but also by means of writing DVD/CD-drive.

It is necessary to mark, that productivity of the notebook created on the basis of the chipset of Intel 855GM, in some cases corresponds to desktop systems. Level is defined by the selected functional modes of systems and tasks. As to considered model of a notebook at a rated frequency of the processor of Intel of Pentium M of 1,70 GHz productivity Fujitsu-Siemens AMILO M 1420 in a number of tests exceeds metrics of the desktop variants created on the basis of Intel of Pentium 4 with clock rate of 2,8 GHz and even above.

However it is necessary to remember, that high efficiency modes are characterised considerable energopotrebleniem. With a view of maximisation of time of offline work with usage of the regular secondary generator expediently to select a mode «Saving of batteries». In this mode of value of clock rate of the processor and a supply voltage of its kernel decrease, that, of course, in appropriate way it is mirrored in productivity. Nevertheless, data, an economical mode promotes considerable lowering teploobrazovanija units and increases an operating time from the computer secondary generator. Thus productivity remains at sufficient level not only for performance of traditional office applications, but also multimedia tasks, for example, for review of films on disks of CD and DVD, and also many widespread popular games. However, it basically concerns those games which do not demand excessive performance levels in 3D, whose number is not too great, according to manufacturers of high-powered videoadapters.

Results of testing

For an estimation of productivity Fujitsu-Siemens AMILO M 1420 as the measurement standard notebook RoverBook Nautilus E410W (Intel of Pentium M of 1.5 GHz, Intel chip set 855GM, the built in drawing, 14.1"LCD TFT, XGA - 1024 x 768, HDD 40 Gbytes, DVD/CD/CD-RW/CD-R) has been selected  .

Results of testing are resulted in Table 2

Table 2. Results of testing

Estimating metrics of productivity Fujitsu-Siemens AMILO M 1420, it is necessary to mark, that test CPUMark99 has shown the results coinciding with metrics of productivity of desktop system with motherboard ASUS P5AD2 and the processor of Intel of Pentium of 4 3,4 GHz.

And nevertheless, despite the prompt extension of a network of arrangements of wireless access, the main advantages of the modern transportable computer comforts of the operation given by large-format matrix LCD TFT with the permission 1280х800 (16:10) consist in rather small weight, width of functionality.

Among indisputable advantages it is necessary to mark noiselessness of operation of the given computer. It allows to work with it long time, not being exposed to negative effect of the noise, irritating which operation is known to all users of modern high-powered systems. It, perhaps, one of the main, positive properties of the similar systems maintained as rather powerful multimedia complexes.

Coming back to value judgment of results of durable usage of transportable computer Fujitsu-Siemens AMILO M 1420 with processing technique of Intel Centrino in different modes and different conditions of service, it is necessary to mark, that such arrangements really in most cases allow to refuse desktop systems.

Wide functionality of modern multimedia notebooks already on advantage was estimated by numerous users. As a result the number of sold computers of the given group promptly increases all over the world, overtaking on rates of growth traditional systems of type Desktop. Moreover, some contributors consider, that in 2007-2008 parks of transportable and desktop computers will be made even

Notebook AMILO M of 1420 companies Fujitsu-Siemens Computers is given by CPS corporation - Technical Centre (www.cpstc.ru)