Showing posts with label Laptop And Computer. Show all posts
Showing posts with label Laptop And Computer. Show all posts

Tuesday, 25 February 2014

What Are the Different Types of Computers?

What Are the Different Types of Computers? Biography

Source(google.com.pk)
These days, computers are described using many different terms. In most cases, simply the capability, the expected use or the size of the computer is implied. However, what most of us do not know is that there are actually different types of computers.


Types of Computers
1. PC

A computer designed to be used by a single person is defined as a personal computer (PC). While a Mac is a personal computer, systems running the Windows OS are considered PCs by most people. Initially, personal computers were referred to as microcomputers because they were complete computers with a smaller size. The Apple iPad is a perfect example of a modern

 PC.
2. Desktop

A desktop computer is a personal computer that is not designed to be portable. Generally, desktop computers are set up in permanent locations. In comparison to portable computers, more versatility, storage and power is offered by most desktop computers for a lesser price.

3. Laptop

Laptops, also known as notebooks, are small-sized portable computers can be placed on the lap and used there. The display, hard drive, keyboard, memory, processor, and a trackball or point device are integrated in a battery-operated package.
4. Netbook
Netbooks are also portable computers but they are much smaller than typical laptops. In comparison to brand-new laptops that can be found at retail outlets, netbooks are much cheaper, usually starting from $300 to $500. However, the internal components of netbooks are not as powerful as those in most laptops.

5. PDA

PDAs or Personal Digital Assistants are integrated computers that do not use a hard drive but instead, use flash memory for storage. These are touchscreen devices and do not have keyboards. Typically, PDAs are very lightweight, smaller than a paperback novel and have a decent battery life. The handheld computer is a slightly heavier and larger version of the PDA.

6. Workstation

A workstation is another type of computer. A workstation is just a desktop computer with additional memory, a more powerful processor, and enhanced capabilities to perform a special group of task, like game development, or 3D graphics.

7. Server

Servers are computers that have been optimized to provide services over a network to other computers. Usually, servers have large hard drives, lots of memory and powerful processors.
8. Mainframe
At one time, mainframes used to be computers that were so huge they would fill a whole room or even an entire floor. As the power of computers has increased while their size has decreased, mainframe computers are now referred to as enterprise servers.

9. Supercomputer

The price of a supercomputer can be anywhere from hundreds or thousands to millions of dollars. Majority of supercomputers comprise of multiple high-performance computers that work in parallel as one single system. Cray Supercomputers have built the well-known supercomputers.

10. Wearable Computer

Wearable computers are a latest computing trend. Today, typical computer applications, like calendar/scheduler, database, e-mail and multimedia have been integrated into cell phones, clothing, visors and watches.
You might have heard of some of these computers, and you might even be one or some of these types in your home. Then again, you also might not have heard of some types of computers mentioned here.

Lenovo G560 Series Laptop Review

Lenovo G560 Series Laptop Review Biography

Source(google.com.pk)
The Lenovo G560 won't make you squeal in delight but rather smile with satisfaction. The Lenovo G560 doesn't break any records but it is built to not break down either.
I've been looking for a new notebook to replace the one I've been using for the last 3 years or so. I don't need a lot processing power or even an extra powerful graphics card. I just needed something that would let me surf the web, work on my documents (word processing, spread sheets, power point etc) and entertain me from time to time. Most importantly, I was looking for something that fit my budget ($600) and would last me for at least another three years.
After hunting around, I finally settled for the Lenovo G560. Here's what attracted me to it. Firstly, it had a decent screen (15.6 inches) as I work on a lot of spread sheets and I normally end up travelling so the screen does a fantastic job as doubling as my mobile TV/Cinema Display.
Secondly, the notebook weighs in at just under 6 lbs. Again because I do travel for work, this makes it something that I can take with me. Of course there are plenty of thin and light notebooks or even ultralight portables that are way lighter but none of them are in this price range.
One of the things I did like about this notebook is the numeric keypad that is included in addition to the standard size keyboard. I guess the manufacturers decided to make something with the working people in mind when they included this into the Lenovo G560.
Like all Lenovos, this notebook does have a decent build and after spending many hours typing away on it, it still feels sturdy and has not given me any problems. It doesn't feel flimsy to the touch and even though it is made of plastic, it doesn't feel cheap.



n terms of multitasking abilities, the Lenovo G560 comes standard with 4Gb of DDR3 RAM which when paired with the Windows 7 Home Premium and Microsoft Office (purchased separately) makes for a very good work machine. I am able to quickly and smoothly switch between my browser, word documents, spread sheets and more. I have not had the machine lock-up on me or lag. So if you are looking for something that will get the job done, give the Lenovo G560 careful consideration.

Specifications of HP 2000-2106TU

Specifications of HP 2000-2106TU Biography

Source(google.com.pk)
Specifications of HP 2000-2106TU (Celeron Dual Core B830-2 GB RAM-500 GB-DOS) Laptop @ Rs.22700/-

OVERVIEW

Series 2000 Series
Model Number B6U41PA
Utility Everyday Use
Color Glossy Imprint Black Licorice

PLATFORM

Architecture N.A
Operating System Free DOS
Other Software N.A

STORAGE

Hard Disk Capacity 500 GB
Hardware Interface SATA
RPM 5400

SIZE & WEIGHT

Weight 2.45 kg
Dimension (W*D*H) 376 x 247 x 35.8 mm

POWER & BATTERY

Battery Backup Upto 3 hours
AC Adapter 65 W AC Adapter
Standard Battery 6 cell


DISPLAY

Screen Size 15.6 Inch
Resolution 1366 x 768 Pixel
Screen Type HD Brightview LED Backlit Widescreen Display

MEMORY

RAM 2 GB DDR3
Expandable Memory Upto 8 GB
Memory Slots 2 (Unused Slot - 1)

PROCESSOR

Processor Name Celeron Dual Core
Variant B830
Chipset Intel HM70 Express
Brand Intel
Clock Speed 1.8 GHz
Cache Memory 2 MB

OPTICAL DISK DRIVE

Read/Write Speed 8x
Optical Drive DVD SuperMulti Drive with Dual Layer Support
GRAPHICS
Dedicated Graphics Memory Type N.A
Dedicated Graphics Memory Capacity N.A
Graphic Processor Intel HD Graphics

KEYBOARD/INPUT DEVICE

Integrated Camera 0.3 Megapixel
Pointer Device TouchPad with Multi-Touch Gesture Support (Pinch and Scroll)
Keyboard Full-size Textured Pocket Keyboard

AUDIO

Internal Mic Yes
Speakers Yes
Sound Effect Altec Lansing Stereo Speakers

COMMUNICATION

Ethernet 10/100 Base T
Wireless LAN IEEE 802.11b/g/n
Bluetooth v4.0 HS

PORTS/SLOTS

USB Port/s 3 x USB 2.0
Mic In Yes
RJ45 LAN Yes
HDMI Port Yes, HDMI Port with HDCP Support
VGA Port Yes
Multi Card Slot Yes