Basic Computer Science MCQ — 45 Practice Questions with Answers

Explanation

A bootstrap program is the small initial program executed at startup to begin loading the operating system. Standard operating-system teaching material describes this bootstrap program or BIOS code as being stored in ROM or other non-volatile memory. Therefore, the tiny bootstrap loader is situated in ROM, so B is correct.

Explanation

Microsoft lists Windows logo key + Shift + S as the shortcut that opens the Snipping Tool overlay for capturing an image snapshot. That overlay lets the user select a rectangular or other part of the screen. Therefore B is correct.

Explanation

Python assignment can use a valid expression list, and commas can form tuples or unpack values. Options A, C, and D are syntactically valid because the comma-separated values are legal expressions. Option B places number literals side by side without any comma or operator, so it is an invalid declaration.

Explanation

In memory-card terminology, SD expands to Secure Digital and MMC expands to Multimedia Card. Option A gives both standard expansions correctly. The other options replace one or both names with non-standard phrases such as Secure Data or Safe Digits.

Explanation

First-generation computers were vacuum-tube based machines, and ENIAC, UNIVAC-I, and IBM-701 belong to that early group. The PDP-11 was introduced in 1970 as a DEC minicomputer, much later than the first-generation period. Therefore PDP-11 is not a first-generation computer, so B is correct.