Computer Fundamental

note!Answer: D) All of the above
The ALU compares values using greater than, less than, and equal to operations.

note!Answer: C) ALU
The Arithmetic Logic Unit (ALU) performs arithmetic calculations and logical comparisons.

note!Answer: C) Mainframe computers
EBCDIC is an 8-bit character code used mainly on IBM mainframe computers.

note!Answer: A) 10^-3 seconds
A millisecond is one thousandth of a second, i.e., 10^-3 seconds.

note!Answer: A) Repeater
A repeater works at the Physical layer (layer 1) by regenerating signals.

note!Answer: A) Disk
Disks are circular storage plates that store data magnetically or optically.

note!Answer: C) Information
Data that has been organized and processed becomes information.

note!Answer: A) Petal printer
Daisy wheel printers are also called petal printers because of their petal-shaped type wheel.

note!Answer: D) Cluster
A cluster is a group of devices controlled by one master unit.

note!Answer: B) Super computer
Supercomputers are informally called number crunchers because of their huge numerical processing power.

note!Answer: C) Intel 4004
The Intel 4004 (1971) is widely recognised as the first commercially available microprocessor.

note!Answer: C) High level
A source program is written in a high-level language, which is later translated into machine code.

note!Answer: D) Semiconductor
Chips are manufactured from semiconductor materials such as silicon.

note!Answer: B) application software
Application software is designed to perform specific user tasks such as word processing or accounting.

note!Answer: C) punched papers tape
Punched paper tape stores data as holes in paper and was used for both input and output.

note!Answer: C) Execution time
Execution time is the period during which the computer actually processes a job.

note!Answer: B) Multiprogramming
Multiprogramming lets the computer keep several programs in memory and run them concurrently.

note!Answer: B) Memory
Memory-resident software stays in RAM, so features like an appointment calendar can be accessed instantly.

note!Answer: C) 1024 megabytes
One gigabyte equals 1024 megabytes.

note!Answer: B) Power PC
The PowerPC is based on RISC (Reduced Instruction Set Computing) architecture, while the 486 is CISC.