Computer & IT

note!Answer: B) System software
System software manages and controls the computer's hardware and resources.

note!Answer: A) Utility
Utility programs are tools used for maintaining and repairing the system.

note!Answer: C) Application software
Application software performs practical user tasks such as word processing or accounting.

note!Answer: A) Universal Automatic Computer
UNIVAC stands for UNIVersal Automatic Computer, an early commercial computer.

note!Answer: D) Compact Disk Read Only Memory
CD-ROM stands for Compact Disk Read Only Memory.

note!Answer: A) An interpreter does the conversion line by line as the program is run
An interpreter translates and executes a program one line at a time, unlike a compiler, which translates the whole program first.

note!Answer: C) Lexical Analysis, syntax analysis, and code generation
Compilation proceeds through lexical analysis, syntax analysis, and code generation (among other phases). Feasibility study and testing belong to software development life cycle, not compilation.

note!Answer: C) a program which translates from one high-level to a machine level language
A compiler translates an entire high-level language program into machine-level (object) code.

note!Answer: B) ASCII
ASCII is the standard character encoding that maps keystrokes to binary codes.

note!Answer: C) The smallest resolvable part of a picture
A pixel (picture element) is the smallest addressable unit of a digital image.

note!Answer: A) Binary
Computers store and process data in binary, the base-2 number system.

note!Answer: A) Scanner
A scanner is an input device that converts documents into digital form.

note!Answer: D) Laser
Compact discs store and read data optically using a laser beam.

note!Answer: C) Firmware
Firmware is software permanently stored in ROM, blending hardware and software characteristics.

note!Answer: D) All of these
Primary memory holds data, programs, and results during processing.

note!Answer: C) Erasing and reconstructing the contents of ROM
EPROM can be erased (typically by UV light) and reprogrammed with new contents.

note!Answer: D) Central Processing Unit
The memory unit is one of the main components of the CPU along with the control unit and ALU.

note!Answer: B) Second Generation Computer
IBM 1401 was a transistor-based machine, which makes it a second generation computer.

note!Answer: A) Medium Scale Integrated Circuits
MSI means Medium Scale Integration, a level of IC packing density.

note!Answer: D) 1.44 MB
The standard 3.5 inch high-density floppy disk holds 1.44 MB.