1.)Classification of computers according to size, features and latest versions of operating systems of computers.
Classification of computers according to size
Computers are available in different size according to their function and purposes. Size of computer refers to the area occupied by the computer and their shape.
Common types of computer according to size are listed below:
Super Computers are the fastest type of computer. Supercomputers are very expensive and are employed for specialized applications that require immense amounts of mathematical calculations. For example, weather forecasting requires a supercomputer. Other uses of supercomputers include animated graphics, fluid dynamic calculations, nuclear energy research, and petroleum exploration.
Super Computer
Mainframe computers are larger and faster then mini computers. They use great storage and required about 100-sq. ft. area to be connected with all peripherals. Nearly 100 people can work at a time in such computers.
Mainframe computer
Mini computers are medium sized computers – much larger than the personal computers we are using and smaller compared to the mainframe computers. These computers can support multiple users simultaneously and is less powerful than mainframe computers.
A Minicomputer was typically a stand alone device that was ideal for use by small and mid-sized businesses who needed more power and memory than could be obtained with microcomputers, but did not have a need for the resources provided by mainframes. More recently, a minicomputer is thought of in terms of being a server that is part of a larger network.
Mini Computer
Micro Computers are a class of computers that use microprocessor as their central processing unit and are the smallest of the types are the micro computers. Microcomputers are often called personal computers (PCs) because they are intended to be used by a single person at a time.
Micro computers can further be classified into desktop computers (that can fit within the top of a desk), laptops (portable computers that can be operated on your lap) and palmtops (hand held computers).
Palm top
Laptop
Desktop
CLASSIFICATION OF COMPUTERS BASED ON APPLICATION
We can identify three different classes if we look upon how a computer works or what they are applied for – Analog, Digital and Hybrid computers.
An Analog computer is a form of computer that uses the continuously-changeable aspects of physical phenomena such as electrical, mechanical, or hydraulic quantities to model the problem being solved. These computers are used in Hospitals, Air-crafts and so on.
An analog computer can be mechanical analog computer or electronic analog computer.
Analog Computer
Digital computers are the most common class of computers for us because we are using them everyday. Digital Computers can be defined as a computer that performs calculations and logical operations with quantities represented as digits, usually in the binary number system.
In digital computers, mathematical expressions are represented as binary digits (0 and 1) and all operations are done using these digits at a very high rate. It means that the computer operates on electrical inputs that have only two states, ON and OFF. These computers are widely used in commercial and control systems. Now a days when we use the word computer, we mostly refer to a digital computer.
Hybrid computers are computers with combined features of both digital and analog type. Desirable features of analog and digital machines can be combined to create a Hybrid Computer. This type of computer operates by counting as well as by measuring. In other words, the output can be either in the form of numbers or required units of measurement, e.g., an analog device measures patient’s heart beat (ECG). These measures will be converted into digital form and a digital device checks for any abnormality. Further, we can also input digital data like your marks and get digital results like the result of your class. Another example is a Modem. (which converts the digital signals into analog, carry it along the line and at the receiving end again changes it back into digital signal).
Operating system
|
Platform
|
Developer
| |
AIX and AIXL
|
Various
|
IBM
| |
AmigaOS
|
Amiga
|
Commodore
| |
BSD
|
Various
|
BSD
| |
Caldera Linux
|
Various
|
SCO
| |
Corel Linux
|
Various
|
Corel
| |
Debian Linux
|
Various
|
GNU
| |
DUnix
|
Various
|
Digital
| |
DYNIX/ptx
|
Various
|
IBM
| |
HP-UX
|
Various
|
Hewlett Packard
| |
IRIX
|
Various
|
SGI
| |
Kondara Linux
|
Various
|
Kondara
| |
Linux
|
Various
|
Linus Torvalds
| |
MAC OS 8
|
Apple Macintosh
|
Apple
| |
MAC OS 9
|
Apple Macintosh
|
Apple
| |
MAC OS 10
|
Apple Macintosh
|
Apple
| |
MAC OS X
|
Apple Macintosh
|
Apple
| |
Mandrake Linux
|
Various
|
Mandrake
| |
MINIX
|
Various
|
MINIX
| |
MS-DOS 1.x
|
IBM
|
Microsoft
| |
MS-DOS 2.x
|
IBM
|
Microsoft
| |
MS-DOS 3.x
|
IBM
|
Microsoft
| |
MS-DOS 4.x
|
IBM
|
Microsoft
| |
MS-DOS 5.x
|
IBM
|
Microsoft
| |
MS-DOS 6.x
|
IBM
|
Microsoft
| |
NEXTSTEP
|
Various
|
Apple
| |
OSF/1
|
Various
|
OSF
| |
QNX
|
Various
|
QNX
| |
Red Hat Linux
|
Various
|
Red Hat
| |
SCO
|
Various
|
SCO
| |
Slackware Linux
|
Various
|
Slackware
| |
Sun Solaris
|
Various
|
Sun
| |
SuSE Linux
|
Various
|
SuSE
| |
System 1
|
Apple Macintosh
|
Apple
| |
System 2
|
Apple Macintosh
|
Apple
| |
System 3
|
Apple Macintosh
|
Apple
| |
System 4
|
Apple Macintosh
|
Apple
| |
System 6
|
Apple Macintosh
|
Apple
| |
System 7
|
Apple Macintosh
|
Apple
| |
System V
|
Various
|
System V
| |
Tru64 Unix
|
Various
|
Digital
| |
Turbolinux
|
Various
|
Turbolinux
| |
Ultrix
|
Various
|
Ultrix
| |
Unisys
|
Various
|
Unisys
| |
Unix
|
Various
|
Bell labs
| |
UnixWare
|
Various
|
UnixWare
| |
VectorLinux
|
Various
|
VectorLinux
| |
Windows 2000
|
IBM
|
Microsoft
| |
Windows 2003
|
IBM
|
Microsoft
| |
Windows 3.X
|
IBM
|
Microsoft
| |
Windows 7
|
IBM
|
Microsoft
| |
Windows 95
|
IBM
|
Microsoft
| |
Windows 98
|
IBM
|
Microsoft
| |
Windows CE
|
PDA
|
Microsoft
| |
Windows ME
|
IBM
|
Microsoft
| |
Windows NT
|
IBM
|
Microsoft
| |
Windows Vista
|
IBM
|
Microsoft
| |
Windows XP
|
IBM
|
Microsoft
| |
Xenix
|
Various
|
Microsoft
|
2.)Configuration of my laptop
| Module | Description | ||||||||
| Base | Inspiron 15R (7520) BTX Base | ||||||||
| Operating System | Windows® 7 Home Premium SP1 64bit (English) | ||||||||
| Memory | 6GB 2 DIMM (1 x 2GB + 1 x 4GB) DDR3 1600Mhz | ||||||||
| Keyboard | Dell™ Backlight Chiclet Keyboard with Multi-touch Touchpad (English) | ||||||||
| Video Card | AMD Radeon™ HD 7730M DDR3 2GB - ICC | ||||||||
| Driver | Intel® 2230 Driver | ||||||||
| Hard Drive | 1.0TB 5400RPM SATA Hard Drive | ||||||||
| Optical Drive | 12.7" Tray Load Blu-ray (BD) Combo Drive (BD Read Only) | ||||||||
| Wireless | Intel® Centrino® Wireless-N 2230, 802.11b/g/n + Bluetooth v4.0 | ||||||||
| Processor |
| ||||||||
