4Feb/100
Computer Science: Study Notes [Some Hardware Def's] – yr 12
Here are some more study notes, not sure where I got the definitions from (might have changed it around a bit as well) - if you find the site I might have got this from please send me the link so that I can reference it.
| Hardware | |
| CPU | Central processing unit |
| ALU | Arithmetic logic unit - a digital circuit that performs arithmetic and logical operations |
| Bus | a bus is a subsysem that transfers data between components inside a computer or between computer. |
| Multi core processor architectures | Multical core processors combine two or more independent cores into on package. Thus allowing the cores to process different instructions in a singal cycle. |
| GPU | Graphics processing unit |
| Switch | Allows compatiable devices connect and share data amongst each other |
| Router | A most sophisticated network device then either a switch or a hub, as router maintains a list of tables of devices and paths to those devices, thus allowing optimum network efficentcy as the router is able to directly transmit signals to the device, whether the device is on a LAN or WAN. The router also acts as a barrier between the internet and LAN's or MAN's and so forth - thus the router eliminates communcation from the internet to these devices. The router maintians a list of current connections and from the internal LAN to the External WAN (i.e. the Internet) thus multiple devices from within the network are able to share the same ip address as well as commmunicate simaltaniously. |
| Wireless modem | A device that converts digital signals from a PC to analog for transmission on public telephone networks. |
| Wireless access point | A device which allows wireless communication devices to connect to wired networks. |
| Router VS Switch | A router is a more sophisticated network device then either a switch or a hub. Router pupose, to join multiple network subnets - switch connects different network segments |