THEORY FINAL EXAM 105/34 Computer science [100% PASS]

THEORY FINAL EXAM 105/34 Computer science [100% PASS] Binary digit is also referred to as *Ans* bit 8 bits make *Ans* byte Smallest unit of memory in a computer *Ans* Byte 1 kibibyte - how many bytes *Ans* 1024 Byte group sizes *Ans* Kilo, mega, giga, tera Example use of binary *Ans* In microprocessors Example uses of Hexadecimal *Ans* HTML colour code, memory dumps to check for errors, assembly and machine code HTML (Hypertext Markup Language) *Ans* Used to create web pages, mark-up language MAC address *Ans* a number that uniquely identifies a device on the Internet. Often refers to network card. First half of MAC address *Ans* Manufacturer code Second half of the MAC address *Ans* serial number Why change your MAC address? *Ans* Certain software requires devices with addresses in a strict format, to bypass a MAC address filter on the router or firewall Primary storage (memory) *Ans* Memory that stores the data and instructions currently in use (RAM & ROM) DIRECTLY ACCESSED BY THE CPU Secondary storage *Ans* Memory that stores data and instructions that are not in use (HDD & SSD) Offline storage *Ans* Non-volatile Removable and can be easily disconnected from the computer, cannot be accessed by computer once removed Not directly accessed by CPU (DVD, CD, USB memory stick) Examples of secondary storage *Ans* Hard disk drive, solid state drive, flash USB drive Processors *Ans* It processes data and instructions to control other components (CPU