Lab 2.1: Connecting Computers Exercise 2.1.1 Media, Interface, Signal, Pattern, and Timing are all necessary to establish a network. Media is needed for the physical structure on which the signal will travel. Interface is needed so the computer can access the media. Signal is the means of transmission such as electrical signal. Pattern is the format for the signals to be interpreted.
Lab 2.1 Exercise 2.1.1 Media - the physical structure from which the signal transmits. Interface - how the computer accesses the media. Signal – how information is transmitted. Pattern – an established format for the signals to be interpreted by the computing device. Timing – synchronization between devices that are communicating so that they each know when the patterns start and end.
TB143 Unit 3 1 Chapter 3 Objectives Understanding I/O Ports. – I/O ports used to send information to and from the processor. – Fix issues with PS/2, LPT, serial, and USB ports. Understanding Input Devices. – Characteristics of keyboards, mice, and other input devices.
This chapter describes the concepts behind how a CPU reads the contents from RAM. Which of the following is true about the process of read data, as described in the chapter? a. The CPU tells the RAM which address holds the data that the CPU wants to read. b.
The operating system is an essential component of the system software in a computer system. 3) C.P.U-(central processing unit) is the hardware within a computer that carries out the instructions of a computer program by performing the basic arithmetical, logical, and input/output operations of the system. 4) KB-(kilobyte) is a multiple of the unit byte for digital information. The SI prefix kilo- means 1000. 5) MB- (megabyte) is a multiple of the unit byte for digital information.
Name ______ _________________________________________ Date _9/5/2012_______ Chapter 1 Reading Organizer 1. List and explain the three things that have to work together in order for most computers to perform useful functions. Hardware – External and internal physical components App Software – Programs that are loaded onto computers to perform specific functions Operating System – Computer programs that manage the hardware of a computer 2. List and explain the two general categories of application software. Business/industry software – software that is designed for use by a specific industry such as medical practice management tools, educational tools, or tools designed for use by law profession for example CAD etc.
(Choose two answers.) a. Used for short-term memory e. Is installed onto the motherboard 5. This chapter describes the concepts behind how a CPU reads the contents from RAM. Which of the following is true about the process of read data, as described in the chapter?
Physical parts of the computer are known as _____________. a. Software b. Hardware c. Operating System d. System Unit22._____________ creates a link between a user and the computer. a.
The merging together of two or more businesses or technologies is termed__convergence(A) a.convergence b.inversion c.manipulation d.commercilization Complete each statement. 1. ________workstation____________ are personal computers or microcomputers where users reside. 2. __________protocols__________ are sets of rules used by communication devices.
This link is above the Physical layer it is responsible for end-to-end validity of what is being transmitted. Datalink layer is divided into; two sub-layer which is Media Access Control (MAC) that determines the physical addressing of the host. The MAC addresses (physical device addresses) that communicate with other devices within the network. Then there is the Logical Link Control (LLC) sub layer. What it is responsible for is the synchronizing frames, error checking, and the flow control.