Computer Fundamentals Questions and Answers

Answer: A

Correct answer: Time required to locate and retrieve stored data

Access time is the interval between issuing a request and the data being available - for a disk, the seek time to reach the track plus the rotational delay to bring the sector under the head plus the transfer time. It is the measure of how quickly storage responds.

Answer: C

Correct answer: Database

SQL - Structured Query Language - is the standard language of relational databases, used to create tables, and to insert, update, delete and query the rows they hold. It has nothing to do with network types or image editing.

Answer: B

Correct answer: Interface

An interface is the shared boundary across which two systems meet and exchange information - the connector and signal conventions between hardware units, or the agreed set of calls between software components. Each side can then be changed independently as long as the boundary is honoured.

Answer: B

Correct answer: Mnemonics

Assembly language replaces each binary operation code with a short mnemonic - MOV, ADD, JMP - chosen to remind the programmer what the instruction does, and names memory locations with symbolic labels. The assembler translates those mnemonics back into the machine code.

Answer: D

Correct answer: All of the above

A dynamic page is assembled rather than served ready-made, and all three have a hand in it: HTML supplies the structure the browser renders, CGI lets the server run a program that generates the page for each request, and Java (with applets and server-side code) supplies logic on either side. Since each plays a part, the combined option is right.

Answer: A

Correct answer: Oracle

Oracle makes the relational database management system of the same name and is the best-known company in that field. Intel and Motorola are semiconductor manufacturers and Asus makes computer hardware.

Answer: C

Correct answer: Babbage

Babbage was the machine-oriented high-level language written for GEC’s 4080 series minicomputers, giving structured statements while still allowing direct access to the hardware. LOGO, SNOBOL and ALGOL were general languages not tied to that machine.

Answer: C

Correct answer: a small, fast memory between the processor and main memory

Cache holds recently and frequently used data close to the processor, so the CPU does not have to wait for the much slower main memory. It is small precisely because the fast memory it uses is expensive.

Answer: C

Correct answer: Equals the number of its distinct counting digits

The radix, or base, of a number system is the count of distinct digits it uses: decimal has ten (0–9) so its radix is 10, binary has two so its radix is 2, hexadecimal sixteen. The radix also fixes each place value, since the \( n \)-th place is worth \( r^n \) - so it is fixed for a given system and need not be even.

Answer: B

Correct answer: RAM

Opening a document copies it from the disk into RAM, the working memory the processor can reach quickly, and the edits are made to that copy. Because RAM is volatile the copy is lost if the power fails, which is why the file must be saved back to disk.