Computer Fundamental

note!Answer: A) Input
Input devices supply data and information to the CPU for processing.

note!Answer: D) 30 or 72
SIMMs are standardised with either 30-pin or 72-pin connectors.

note!Answer: D) Either of the above
Secondary storage only holds data; arithmetic, logic, and fetch operations are all carried out by the CPU.

note!Answer: C) Laser printer
Laser printers use dry toner powder fused onto paper by heat and static charge.

note!Answer: B) RAM
RAM is read-write memory, so data can be read and written; ROM and EPROM are read-only in normal operation.

note!Answer: A) Cache memory
Cache memory is the fastest memory in the hierarchy, located closest to the CPU.

note!Answer: C) 4 byte
One byte is 8 bits, so 32 bits equals 4 bytes.

note!Answer: B) Bug
A bug is an error or fault in a computer program or data.

note!Answer: C) Micro processors
Microprocessors are silicon chips that perform the data processing in a computer.

note!Answer: C) Winchester disk
Winchester disks are sealed, contamination-free hard disks; floppy and flexible disks are removable.

note!Answer: D) All of the above
A computer's basic components include the CPU, memory, and input/output units.

note!Answer: B) Registers
Registers are very fast storage locations inside the CPU, including the ALU, used for temporary data.

note!Answer: D) Magnetic bubble memory
Magnetic bubble memory is non-volatile solid-state storage with no moving parts.

note!Answer: A) Computer aided design
CAD stands for Computer Aided Design, the use of computers to create and modify designs.

note!Answer: B) Magnetic or optical
Microcomputer storage mainly uses magnetic media (such as hard disks) and optical media (such as CDs) with different capacities.

note!Answer: D) COM (Computer Output to Microfilm)
COM is an output device that records computer output onto microfilm; the others take data into the computer.

note!Answer: A) 256
EBCDIC uses 8 bits per character, giving 2^8 = 256 possible characters.

note!Answer: C) Semiconductors
Semiconductor materials such as silicon are used to manufacture computer chips.

note!Answer: C) Eight bits
A byte is a group of 8 bits.

note!Answer: C) Resembles both a digital and analog computer
A hybrid computer combines features of both digital and analog computers.