Computer Terminologies (1) CPU - Central Processing Unit RAM - Random Access Memory ROM - Read-Only Memory CD-ROM drive Floppy disk drive Hard disk drive.

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Presentation transcript:

Computer Terminologies (1) CPU - Central Processing Unit RAM - Random Access Memory ROM - Read-Only Memory CD-ROM drive Floppy disk drive Hard disk drive Bus

Computer Terminologies (2) System unit Motherboard (Mainboard) Expansion slot Network Card Video Card Sound Card Parallel port and Serial port

An Idealized Computer

Information Flow

What’s in that box?

Network Interface Cards zcommunicate through a serial connection zEach card requires an IRQ, an I/O address, and an upper memory address to work with DOS/WIN95. zTo configure TCP/IP LAN settings in a Windows machine, use the Control Panel icon, Network.

Network Interface Cards zConsiderations: ztype of network (Ethernet, Token Ring, FDDI) ztype of media (CAT5, fiber, wireless) ztype of system bus either PCI/ISA or PCMCIA, which is used on laptops) zTo change a PCs network speed from 10Mbps to 100Mbps, you need to upgrade the NIC.

NIC: Network Interface Card IRQ I/O address Memory address PCMCIA Personal Computer Memory Card International Association

Select a NIC Type of Network: –Ethernet, Token Ring, FDDI Type of media: –Twisted-pair, Coaxial, Fiber-optic cable Type of system bus: –PCI, ISA

Information stored in computers Symbols or "bits", are 1 and 0.

Data Networks

1 Byte = 8 Bits. Information Unit

Numbering System

Binary Numbering System

Binary Number System Computer systems only understand “ on ” and “ off ” or “ 1s ” and “ 0s. ” Computer systems use a binary numbering system rather than decimal. Decimal numbering system uses 10 symbols; they are 0-9. Computer systems use a Base 2 system bits = 1 byte A bit is a binary digit used in the binary numbering system, either 0 or 1.

Binary Number System

The binary number in Base 2 = (1, 128) = (0, 64) = 0 + (0, 32) = 0 + (1, 16) = 16 + (0, 8) = 0 + (0, 4) = 0 + (0, 2) = 0 + ( 1, 1) = 1 = 145

Binary Number System The decimal number 35 in Base

Binary Number System If the right-most digit is odd, then the number is odd. (255)

Binary Number System If the right-most digit is even, then the number is even. (142)

Preparation for LAB 1: Installation of NIC 2: Configuring network settings

Q & A