this entry is all about what we have learnt in Miz Wani class before.. Enjoy diz entry.. :)
Topic 1: Computer System
INTRODUCTION
A computer system is the combination of hardware and software. A typical computer system has memory and sets of states that define the relationship between the system'c inputs and outputs.
Computer? Lets see what is it actually. :
A computer is an electronic device, operating under the control pf instruction stored in its own memory, that can accept data, process the data according to specified rules, produce results and store the results for future use.
use to hear about comp. hardware? lets seek more about it .. :)
computer hardware is actually all about its physical part which we can see and even touch.. this is include digital circuitry. major hardware component of a computer system are processor or CPU , memory unit which is main memory and secondary memory. input and output devices also is a major hardware component of a computer.
how i can post new entries without any connection with internet, so whats next ?? its about computer network.. :)
there are 3 main types of network connection which is :
1) Local Area Network (LAN)
: a network that is confined relatively small area.
: its is generally limited to a geographic are such as writing lab, school, or building.
: its only can connect in certain distance.
2)Metropolitan Area Network (MAN)
: this type of network cover larger are such as cities.
: smaller network interconnected within a large geographic area.
: always used by local libraries and government agencies.
3)Wide Area Network (WAN)
: its connect larger areas such as Singapore, Australia and even the World. dedicated transoceanic cabling or satellite uplinks may be used to connect this type of network.
: WAN can connect school in Malaysia with place like Tokyo and others in a matter of minutes, without paying enormous phone bills.
now , lets see what soo good about network and also what soo baaadd about network.. check it out ! ;)
ADVANTAGES.
: peripherals and hardware can be shared.
: software can be shared
: data can be shared.
DISADVANTAGES
: the cost in cabling and installation may be high.
: a network manager may need to be employed to run the network.
: vulnerable to hackers and viruses.
thats all .. :) thanks for giving time to reading all these information .. :)
walawey...student bha tu
ReplyDeletebha..gud luck..haha