1. COMPUTERS,LAPTOPS,SERVERS

2. COMPUTER
A programmable electronic device that can store, retrieve and process data.
An electronic machine that can be programmed to accept data (input), and process it into useful information (output). Data is put in secondary storage (storage) for safekeeping or later use.
The processing of input into output is directed by the software, but performed by the hardware.

3. Personal computer Workstation Minicomputer Mainframe Super computer
Computers can be broadly classified by their speed and computing
power:
Personal computer
Workstation
Minicomputer
Mainframe
Super computer

4. Laptops
Portable and compact personal computer with the same capabilities as a desktop computer.
Laptop computers provide users the ability to run the machine using an internal battery or an outside power adaptor.
However, it can run for a short time on batteries.

5. Laptops are classified into the following based on their uses:
Traditional laptop
Subnotebook
Netbook
Convertible
Laplet
Sony VAIO P series subnotebook
Apple MacBook Pro, a laptop with a traditional design
Microsoft Surface Pro 3, a typical laplet
Samsung Chromebook netbook
 Lenovo X61 convertible laptop

6. Servers
A server is a computer that provides data to other computers.It may serve data to system on a LAN or WAN over the internet.
The hardware components that a typical server computer comprises are similar to the components used in less expensive client computers.
Server computers are usually built from higher-grade components than client computers. 

7. Tower Server : A computer intended for use as a server and built in an upright cabinet that stands alone. The Cabinet is known as Tower.
Rack Server : A computer dedicated to use as a server and designed to be installed in a frame work called a rack. The Rack contains multiple mounting slots called bays.
Blade Server : A server chassis housing multiple thin modular electronics board called server blades.

8. Servers Mail Server FTP Server Web Server Proxy Server Print Server
Application Server

9. Uses of Computers and laptops
Uses of work computers
Word processing
System management
Video conferencing
Uses of home computers
Communicating
Entertainment
Downloading data
Education
The biggest advantage a laptop enjoys is portability. It is capable of any
function a standard desktop computer performs.

10. USES OF SERVER Stores and retrieves data
In the workspace to create domains for users
Provides database services
It is used for sharing of files
To send commands and receive responses along with data contents
Dedicated to running certain software applications
A central search point

11. FUNCTIONALITY OF COMPUTERS

12. COMPUTERS PROCESS DATA BY MEANS OF BINARY SYSTEM
All data in a computer system must be reduced to a string of binary digits. The process of converting data from other formats into binary digits is called digitization.

13. CLIENT-SERVER MODEL

14. FUNCTIONS OF SERVER The outgoing mail server authentication
The auto-reply of mail server
The access to website by password
Access to the sites by using FTP
Secure transmission with SSL
Storing data

15. LATEST COMPUTERS IN MARKET
Name
Apple iMac
Acer Aspire
Lenovo Erazer
Dell Precision
Type
All-in-One
Mainstream
Gaming
Business
Processor Name
Intel Core i5-4590
Intel Core i5-4440
AMD A K
Intel Xeon E5 2687W v3
Processor Speed
3.3 GHz
3.1 GHz
3.7 GHz
RAM
8 GB
12 GB
32 GB
Storage
1 TB
2 TB
Graphics Card
AMD Radeon R9 M290
Intel HD Graphics 4600
AMD Radeon R9 M260
Nvidia Quadro K6000 OS
Mac OS X Yosemite
Windows 8.1
Windows 7 Professional

16. LATEST LAPTOPS IN MARKET
Name
Apple MacBook Air
Origin EON 15-X
Toshiba Tecra
Dell 7000 Series
Type
Ultraportable
Gaming
Business
General Purpose
Processor Name
Intel Core i5-4260U
Intel Core i7-4790K
Intel Core i5-4210U
Intel Core M-5Y71
Processor Speed
1.4 GHz
4 GHz
1.7 MHz
1.2 GHz
RAM
8 GB
16 GB
4 GB
Storage
128 GB
1.24 TB
500 GB
256 GB
Graphics Card
Intel HD Graphics 5000
Nvidia GeForce GTX 980M
Intel HD Graphics 4400
Intel HD Graphics 5500 OS
Mac OS
Windows 8
Windows 7

17. LATEST SERVERS IN MARKET
Name
Dell PowerEdge T620
Lenovo Think Server TS200V
Lenovo Flex System x240 M5
Type
Rack
Tower
Blade
Processor Name
Dual Intel Xeon E5-2650
Intel Corei5
Intel Xeon E v3
Processor Speed
2 GHz
3.2 GHz
2133 MHz
RAM
64 GB
4 GB
Storage
32 TB
2 X 250 GB
4 TB

18. Advanced Technology Pen with hidden Camera
In the revolution of miniature of computers, the scientists are ahead with Bluetooth technology...

19. This pen sort of instrument produces both the monitor as well as the keyboard on flat surfaces from where you can just carry out the normal operations you do on your desktop.

20. A lightweight, foldable roll modelled after storage tubes
A lightweight, foldable roll modelled after storage tubes. The flexible OLED screen and arc-shaped keyboard fold into the tube when not in use, and the carrying strap features a few easy-to-access USB ports.

21. Flexible displays
Your laptop, tablet, or e-reader may soon have a flexible display rather than a rigid glass screen that can break too easily. The Skiff Reader, a Kindle-like device designed for newspaper and magazine content has bendable "metal foil" e-paper display.

22. Future Computers Could Express Ideas Like Humans
The program-dubbed Communicating with Computers (CwC) — aims to get
computers to express themselves more like humans by enabling them to use spoken
language, facial expressions and gestures to communicate.

23. Napkin PC It consists of a series of pens with shortwave radio frequency, a computer base station (probably in the napkin holder), and several "napkins" that are in fact multitouch, color e-paper surfaces. Users in a workgroup setting could use a fresh napkin to scribble down every new idea.

24. A Future Internet Might Not Use Servers
The idea is to remove the concept of the URL from the internet. In fact,
the researchers explain that online searches would stop looking for
URLs (Uniform Resource Locators) and start looking for URIs (Uniform
Resource Identifiers). URIs, then, specify where data is—and where to
go in order to find it—rather than being the single point of call.

25. Server Technology Trends for New Decade
Mobile Computing
Virtualization
Cloud Computing
Web-based Applications
Open Source Migration
Online Storage

26. Researchers say Nano Servers Are the Future of Cloud Technology