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Enterprise Content Management Class Notes_113292372-Notes

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1. INTRODUCTION TO COMPUTER CONCEPTS
Definition of computer
A computer is a programmable machine designed to automatically carry out a
sequence of arithmetic or logical operations. The particular sequence of operations
can be changed readily, allowing the computer to solve more than one kind of
problem. An important class of computer operations on some computing platforms is
the accepting of input from human operators and the output of results formatted for
human consumption. The interface between the computer and the human operator is
known as the user interface.
Elements & Components of computer operation
Basic elements of a computer system are Mouse, Keyboard, monitor, memory, CPU,
motherboard, Hard Disk, Speakers, Modem, power Supply, and processor.
Mouse: Mouse is sued for operating the system. You can also use computer without
mouse, as by using motherboard but in this case it will be very tough to use a
computer.
Keyboard: Keyboard is used to giving input to the system and system gives output
to the user. There are many things which we cannot do without keyboard as we
cannot write anything without a keyboard.
Monitor: Monitor is very essential part of a computer system. It is used to display
things which we perform on a computer.
Motherboard: Motherboard is also a necessary element of a computer system. It
contains different elements as memory, processor, modem, slots for graphic card
and LAN card. Memory is sued to run programs on a computer. LAN card issued for
making a network between computers. Hard Disk: Hard disk is used to store data
permanently on computer.
Modem: Modem is used to connecting internet. Two types of modems exist. One is
known as software modems and other is known as hardware modems.
Speakers: Speakers are also included in basis elements of a computer. But it is not
necessary as a computer can perform its function without this. However, we use it to
for multiple purposes.
Generation of Computer
http://www.scribd.com/doc/16329032/Generation-of-Computers
Classification of Computer
Palm PCs or Simputer

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The Simputer is a self-contained, open hardware Linux-based handheld computer, first
released in 2002.
Laptop PCs
Laptop PCs (also known as notebook computers) are portable computers weighing
around 2 kgs. They have a keyboard, flat screen liquid crystal display, and a Pentium or Power
PC processor.
Personal Computers (PCs
The most popular PCs are desktop machines. Early PCs had Intel 8088 microprocessors
as their CPU. Currently (2004), Intel Dual Core is the most popular processor.
Workstations
A workstation is a high-end microcomputer designed for technical or scientific
applications. Intended primarily to be used by one person at a time, they are commonly
connected to a local area network and run multi-user operating systems. The term
workstation has also been used to refer to a mainframe computer terminal or a PC
connected to a network.
Workstations are also desktop machines. They are, however, more powerful providing
processor speeds about 10 times that of PCs. Most workstations have a large colour video
display unit (19 inch monitors). Normally they have main memory of around 256 MB to 4 GB
and Hard Disk of 80 to 320 GB.
Servers
Server is a physical computer (a computer hardware system)
dedicated to running one or more such services (as a host),
to serve the needs of users of the other computers on the network.
Mainframes Computers
There are organizations such as banks and insurance companies process large number
of transactions on-line. They require computers with very large disks to store several Terabytes
of data and transfer data from disk to main memory at several hundred Megabytes/sec.
Supercomputers
Supercomputers are the fastest computers available at any given time and are normally
used to solve problems, which require intensive numerical computations.

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1. INTRODUCTION TO COMPUTER CONCEPTS  Definition of computer A computer is a programmable machine designed to automatically carry out a sequence of arithmetic or logical operations. The particular sequence of operations can be changed readily, allowing the computer to solve more than one kind of problem. An important class of computer operations on some computing platforms is the accepting of input from human operators and the output of results formatted for human consumption. The interface between the computer and the human operator is known as the user interface.  Elements & Components of computer operation Basic elements of a computer system are Mouse, Keyboard, monitor, memory, CPU, motherboard, Hard Disk, Speakers, Modem, power Supply, and processor. Mouse: Mouse is sued for operating the system. You can also use computer without mouse, as by using motherboard but in this case it will be very tough to use a computer. Keyboard: Keyboard is used to giving input to the system and system gives output to the user. There are many things which we cannot do without keyboard as we cannot write anything without a keyboard. Monitor: Monitor is very essential part of a computer system. It is used to display things which we perform on a computer. Motherboard: Motherboard is also a necessary element of a computer system. It contains different elements as memory, processor, modem, slots for graphic card and LAN card. Memory is sued to run programs on a computer. LAN card issued ...
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