Although other Micro computers preceded it, the IBM PC was the first to use the name specifically.
As a result, the term PC now applies to an IBM-compatible computer as contrasted to the Apple Macintosh, these being the two standards that emerged from an abundance of competitors in the early 1980's.
They are further classified in to 3 types.
a) Desktop Computers
b) Laptop Computers
c) Mobile Computer/Devices
A) Desktop Computers
A computer designed for desktop use, usually comprises, at a minimum, a central processing unit (CPU), a monitor, and a keyboard as separate units, connected by special cables. Most such computers now also include a Pointing Device.
B) Laptop Computers
It Is portable, light weight and fit into most briefcases.
A portable computer typically weighing less than 6 pounds (3 kilograms) that has a flat-panel display and miniature hard disk drives, and is powered by rechargeable batteries.
Laptops generally cost around twice as much as a desktop machine of similar specification.
Performance is always lower than that of a comparable desktop because of the compromises necessary to keep weight and power consumption low.
C) Mobile Computers
All devices which can carry in hand and portable, is said to be mobile devices and computers.
These Devices are categorized in:
1) PDA
2) Tablet PC
3) Hand Held Computer
1) PDA
2) Tablet PC
3) Hand Held Computer
1) PDA:-
PDA stands for “Personal Digital Assistant”.
A small, handheld system combining in one device multiple computing, Internet, networking, and fax/telephone features.
A PDA contain following features:
i) Keep phone directories
ii) Calendars and provide calculator capabilities
iii) Schedule appointments
iv) Most PDAs are designed to accept written input by a pen, the PDA decodes what you write.
A small, handheld system combining in one device multiple computing, Internet, networking, and fax/telephone features.
A PDA contain following features:
i) Keep phone directories
ii) Calendars and provide calculator capabilities
iii) Schedule appointments
iv) Most PDAs are designed to accept written input by a pen, the PDA decodes what you write.
2) Tablet PC:-
A tablet PC is a Type of Notebook computer that accepts your handwriting.
(or)
A tablet PC is a wireless personal computer (PC) that allows a user to take notes using natural handwriting with a stylus or digital pen on a touch screen.
A tablet PC is a wireless personal computer (PC) that allows a user to take notes using natural handwriting with a stylus or digital pen on a touch screen.
Tablet PCs generally have two formats, a convertible model with an integrated keyboard and display that rotates 180 degrees and can be folded down over the keyboard or a slate style, with a removable keyboard.
Hand held Computer is a Very small, lightweight device which provides functionality approaching that of a laptop computer.
Features of modern handhelds include calendar and diary organizing, word processing, data management, remote access to firm's network, internet access, wireless access, messaging, etc.
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