By: Talwinder Singh SandhuBy: Talwinder Singh Sandhusinghts1234@gmail.comsinghts1234@gmail.com

A computer is one of the most brilliant inventions of mankind. Thanks to computer technology, we were able to achieve storage and processing of huge amounts of data.

It responds to a specific set of instructions It can execute a prerecorded list of instructions It can perform complex & repetitive

procedures quickly, precisely and reliably.

Based on the operational principle of computers, they are categorized as:

ANALOG COMPUTERS: These are almost extinct today. It can perform several mathematical operations simultaneously.

DIGITAL COMPUTERS: They use digital circuits and are designed to operate on two states, namely bits 0 and 1.

HYBRID COMPUTERS: The digital segments perform process control by conversion of analog

signals to digital ones.

ANALOG DIGITAL HYBRID

MAINFRAME COMPUTERS:MAINFRAME COMPUTERS: Large organizations use mainframes for highly critical applications such as bulk data processing and ERP.

Most of the mainframe computers have capacities to host multiple operating systems and operate as a number of virtual machines.

MAIN FRAME MICRO COMPUTER

A computer with a microprocessor and its central processing unit is known as a microcomputer.

When supplemented with a keyboard and a mouse:

Now we will discuss various types of Computers Available in the Market.

DESKTOP

SERVER

MINICOMPUTER

PDA

NETBOOK

LAPTOP

TABLET

SUPER COMPUTER

So far as DESKTOPS are concerned, the survey gives the following results:

At the top of the chart is the Apple iMac which pioneered the change in the very way we perceived computers, transforming them from huge bulky ugly things to almost an ornamental piece of envy in every home.

CONFIGURATION:CONFIGURATION: Intel Core i5 processor (3.1 GHz)4 or 16GB of RAM and 1TB storageRuns the latest apple OS, MAC OS X 10.7 Lion.

PRICE: Rs 95,000

Pros: With a stunning 27" display and a very impressive tech sheet, this beast packs quite a punch.

Cons: A very high price tag, and the feature set makes it almost an overkill for standard users.

HP is a brand one tends to associate with quality products and on the forefront of new innovative technology. The hp touchsmart 9300 elite has a very impressive display with a maximum resolution of 1920 × 1080 pixels, making it Full HD.

CONFIGURATION:CONFIGURATION:Windows 7 Professional i3, i5 and i7 variants8GB of RAM1TB hard drive23" screen

PRICE : Rs. 52,000 to 1,10,000

Pros Fantastic display.

Fastest processorsVery good design and construction. 

Cons Very heavy unit.

Aimed mainly at corporates & high-end users.

Acer has taken the computer industry by storm, offering really nice products at very reasonable rates. The new Acer All-in-One Z5 takes this USP of the company forward with good features and smart pricing.

CONFIGURATION:CONFIGURATION:Intel i5-650 processor 4GB RAMHD Graphics with 1.7GB of video RAM1.5TB of storage space. 23 inches screen

PRICE: Rs 48,000 to 55,000

ProsRuns heavy graphics smoothly.More than generous storage space.Very smart pricing.

ConsHas only 2 USB ports. Comes with a dual core i5 processor.

Samsung, best known for its computer screens and mobiles, now launches Series 7 All-in-One. The beautiful screen is a clear give-away of what is definitely one of the strengths of Samsung, the display.

CONFIGURATION:CONFIGURATION:2.7GHz Intel Core i5-2390T64MB Intel HD Graphics 1TB hard disk

PRICE: RS 47,000 to 60,000

ProsFantastic looking screen and beautiful design.Smart pricing.Simple and easy-to-use touch interface.

ConsComparatively slower processor.Lack of Blu Ray drive.

Lenovo, the leading in computers comes with their latest offering, the IdeaCenter B520, boasts of some more than decent specifications.

CONFIGURATION:3.4GHz Intel Core i7-2600 processor, 8GB DDR3 RAM2TB storage space 23" Full HD screen 1920 × 1080 pixels resolution2GB Nvidia GeForce GT 555M graphics card

PRICE: Rs 45,000 to 60,000

ProsGood processing speed.Only computer in the price range offering 3D.

Cons3D viewing setup is complicated for first-time users.Not for hardcore gamers.

As per the survey the following results are obtained:

So, Lets have a look at the most popular laptops and some new and exciting featured

laptops available in the market.

Designed for on-the-move business needs:

Slim and lightweight design makes carrying easier.

Enhanced anti-shock technology insulates the hard drive and data from the bumps of daily life.

Acer Thermal Comfort technology keeps the processor and notebook casing cooler, to use it on the lap comfortably.

2nd generation core i5 Processor 4GB RAM 320 GB HARD DISK 5 in 1 card reader 13 in * 9.4 in * 0.9 in

The Samsung Series 5 ULTRA has a huge amount of space for files. Its ultra large capacity HDD can store up to 500GB of data, so to always enjoy favourite music, pictures and movies.

Intel core i5 Processor 500 GB hard disk 315.1 x 218.9 x 14.9 ~ 17.6mm(W*D*H) 4 GB RAM Weight 1.39 Kg Windows 7 (64 bit)

It is a display worthy world’s most advanced notebook.

The processor, graphics and I/O all benefit from the higher bandwidth speeds that the flash storage offers.

Two 2.4GHz core Xeon E5645 Processors Display- 13.3 inch 2560*1600 resolution 20.6 cm * 47.5 cm * 51.1 cm (W*D*H) X mountain Lion Operating System

HCL Infosystems launched MiLeap – a fully functional, portable range of laptops.

Available in two series, X and Y  The X series would have both flash-based and

disk-based storage options, with a Linux-based operating system.

The high-end Y series would have features such as touch screen, thumboard, stylus, keyboard and touch buttons.

Windows vista Operating System Wi-Fi 7 inch screen Intel core 2 duo Processor Graphical User Interface enabled Weights less than a Kilogram.

Asus has created a landmark by developing an Ultrabook featuring two HD screens:

The inside screen functions like a regular display while the outer screen is a touchscreen. 

When closed, the Taichi can be used as a tablet. 

In the open position, it functions as a typical laptop, with the focus placed on the inner screen and keyboard.

Taichi’s dual screens measure 11.6 inches Intel Core i5 or Core i7 processor.  4GB of memory An Intel HD 4000 graphics processor 128GB or 256GB of SSD storage

ACER comes with a new LAPTOP

Equipped with latest Intel Core 2 SOLO processor of 1.4 GHZ

4 GB of DDR3 RAM which give it a full boost in performance.

Windows vista Operating System Intel core 2 Processor 320 GB Hard disk 4 GB Ram 14.1 inch Screen Weights 1.9 Kg 1.4 GHz Speed 338.4 (W) x 240 (D) x 24/28.9 (H) mm

Advancement in Technology brings another Innovation:

Tablets were first designed as devices for consuming media -ebooks, movies, and music and for playing games, browsing the Internet.

Tablets do not typically have a keyboard, mouse, or DVD drive. Their screens are their primary input device

Connects to the Internet using either Wi-Fi or 3G technologies.

The most popular Tablet in the market. 10 hour battery life. 7.9 inch display Faster speed for browsing Internet

25.6 cms TFT LCD touchscreen 3 megapixels primary along with a 2

megapixels secondary camera Powered with 1 GHz dual core ARM cortex A9

processor, HD recording and Wi-Fi Android V3.1 Honeycomb OS PRICE- Rs 33,000

Android v3.1 Honeycomb OS. Nvidia Tegra 2 T20 1 GHz dual core processor 25.6 cms HD LED multi touch display Wi-Fi, document editor and 3G. 5 megapixels primary and a 2 megapixels

secondary camera. PRICE Rs 31,000

Android 2.3 Gingerbread operating system. Equipped with a 5 megapixels primary camera

and a 1.3 megapixels secondary camera The Wi-Fi enabled HTC Flyer tablet offers 17.8

cms TFT touchscreen display and runs on 1.5 GHz processor.

PRICE- Rs 36000

Aakash is first in a series of Android-based tablet computers produced by British company DataWind. It is manufactured by the India-based company Quad.

7-inch touch screen, ARM 11 processor and 256 MB RAM running under the Android 2.2 operating system. It has two universal serial bus (USB) ports and delivers HD quality.

The tablet will be sold to MHRD at a cost of Rs.2263 and subsidised to Rs.1130 for students.

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