ICT SYSTEMS Inputs / Processing / Outputs. Input e.g. Data Input Any Computer System Feedback e.g. a printer problem Process e.g. A computer program Output.
Published byModified over 4 years ago
Presentation on theme: "ICT SYSTEMS Inputs / Processing / Outputs. Input e.g. Data Input Any Computer System Feedback e.g. a printer problem Process e.g. A computer program Output."— Presentation transcript:
Processing The main processor within a computer system is called the CPU CPU – Central Processing Unit CPU basic tasks: Storage of Data Carrying out instructions such as opening computer programs Performing arithmetic and logic operations (performing calculations and taking decisions) Control the flow of input and output signals within the system
Storage Memory cards Tape storage USB Portable memory Floppy discs - less now CD / DVD / Blu-ray Hard drives
Networks The linking of 2 or more computers Giving the ability to share:Information Files Hardware (i.e. printers) What do we mean by a Computer Network? Most computers are linked into a network using a Network Interface Card (NIC) Card Slots into an available PCI Slot on a Motherboard Wired or Wireless
Peer 2 Peer Sharing files & data Wired or Wireless Both computers have the ability to print Wired or Wireless Question: How do you use Peer 2 Peer today?
LAN & WAN Hub: Linking all Computers together File server: Focal point of network, may host files and programs for all to use All computers have the ability to print Wired or Wireless Connections
Connecting Networks Router: Connecting 2 networks together
Business Communication Methods CompanyCustomersSuppliers External communications Internal communications DirectorsManagersOffice staffFactory staff Sales staff Accounts
Email & EDI Benefits of EmailEmail Problems A permanent record of each message is saved by both the sender and receiver Saves paper (except when offices still print them out!) The same message can be sent to a large group of people at once Speed, messages are almost instantaneous Spam: unwanted advertising, be careful what you sign up for.. Computer virus's: sent as attachments Sender must have exact address, unlike normal post A basic understanding of computer literacy is required Attaching documents Electronic Data Interchange (EDI) is the structured transmission of data between organizations by electronic means. It is used to transfer electronic documents from one computer system to another, i.e. from one trading partner to another trading partner.
Intranets / Extranets Intranets Millions of computers exchanging information around the world, its publicly accessible side is known to us as the World Wide Web and contains billions of pages of information. Works the same way as the internet, except it is limited within a business or organisation. Information can be shared within it, but not accessed by any external source. Extranets Basically an Intranet, but with external access is given to specified users, usually through a password based system. The Internet