Topic 1A Flashcards
What are the three functions of a computer?
Input, Processing, Output.
What is ram?
random access memory is short term storage. (volatile memory) Used to provide quick data access for the cpu.
What are the four major PC components?
Motherboard, Harddrive, Ram, Bios
What is a data bus?
Used to carry signals from the main memory to the cpu and vice versa or from main memory to input/output devices.
What is a address bus?
Used to carry address signals. such as memory locations or IO port locations.
What is a control bus?
Used to carry control signals such as read or write commands from the cpu to memory or port interface
How do the data and address bus work together?
The data bus carries the information that needs to be stored while the address bus carries the location to which the information gets stored at.
What is the bios?
The bios is a set of instructions provided by the mother board to the cpu when the computer is first powered on. One of those instructions is to perform a power on self test.
What is the computer boot procedure?
Power is applied to the motherboard. The cpu powers on. The cpu carries out the BIOS startup routine as well as the POST(power-on self test) boot devices specified in the bios are searched for. The os is searched for. The os is loaded into ram, and the os services are started.
What is required to attach a computer to a network?
Attaching a computer to a network requires a network interface
card (NIC) to create and mediate the connection between a
computer and the networking medium
It contains MAC address(Media Access Control Address)
Unique identifier assigned to NIC
