Computer Fundamental

note!Answer: B) Control section
The control unit directs the ALU by sending it commands for each operation.

note!Answer: B) Binary codes
Inside a computer, instructions and memory addresses are represented as binary codes made of 0s and 1s.

note!Answer: D) EBCDIC Code
EBCDIC (Extended Binary Coded Decimal Interchange Code) was developed by IBM.

note!Answer: A) 9
Each track on a magnetic tape needs its own read-write head, so a 9-track tape uses 9 heads.

note!Answer: D) All of above
A disk address specifies the surface, track, and sector where the record is located.

note!Answer: C) Diskettes
Floppy disks made of flexible plastic are called diskettes.

note!Answer: A) Hardware
Program counter, registers, interrupts and terminals are physical hardware components. So this is the hardware interface.

note!Answer: C) System
The operating system is system software. It is the most basic and common type of system software.

note!Answer: B) Engineers
CAD (Computer-Aided Design) software is used for designing drawings and models, such as machine parts and buildings, mainly by engineers.

note!Answer: A) Operating system
BIOS is firmware that starts the computer and provides low-level hardware control for the operating system.

note!Answer: C) Graphical user interface
GUI stands for Graphical User Interface, which uses icons, windows, and menus.

note!Answer: B) BIOS
During boot, the BIOS locates and loads the system files from the boot device.

note!Answer: A) Program
A program is a set of instructions that performs a specific task on a computer.

note!Answer: C) user-friendly
An interface that is easy to use is called user-friendly.

note!Answer: A) Right-clicking
The secondary mouse button is normally the right button, so pressing it is right-clicking.

note!Answer: B) USB flash drive
A USB flash drive is a flash memory storage device that plugs into a USB port.

note!Answer: B) The operating system
The operating system controls computer functions and provides the user interface.

note!Answer: B) Embedded computers
Embedded computers are special-purpose chips built into devices such as cars and thermostats.

note!Answer: D) All of the above
My Computer displays all drives, including hard disks, CD/DVD drives and removable disks.

note!Answer: B) Recycle bin
Deleted files from the hard disk are sent to the Recycle Bin until it is emptied.