Topic I: The input/ output Process
1. A person wishes to purchase a personal computer for home usage. Identify the internal hardware components this computer should contain.
a. Mother board
b. Power supply
c. RAM
d. NIC
e. Graphic card if not on mother board
f. Processor
2. Explain in simple terms the I/O process.
a. The Input / Output Process - simply put anything that puts input into the computer is an Input device, such as a keyboard or mouse. Output is what comes out such as typing on the keyboard will give you output on your display monitor and some things do both such as a hard drive.
3. You typed “abcd”, but the locally attached printer prints garbled text. How do you go about resolving this issue?
a. It appears that you have the wrong printer driver, for the printer you are using. Delete the current printer configuration and install the correct driver. If you do not have the disk with the driver or it is not stored with your operating system, just go on line and download the correct driver.
Topic II: OSI Model
Definition
1. What is the OSI model?
a. The OSI (Open Systems Interconnection) is a conceptual model that characterizes the standardizes the internal functions of a communication system by partitioning it into abstraction layers and is a product of the open systems interconnection project at the International organization for standardization. This model groups similar communication functions into one of seven logical layers and helps to provide error-free communications across a network, helps to provide a path needed by applications.
The seven layers are:
1. Physical layer
2. Data link layer
3. Network Layer
4. Transport layer
5. Session Layer
6. Presentation Layer
7. Application Layer
2. Application
Use the OSI model to explain how an email message from you gets read by the recipient on his/her computer.
a. Layer 1: The physical layer...This layer conveys the bit stream through the network at the electrical and mechanical