Computer fundamental MCQ Questions and answers- Technical Aptitude

RAM is normally associated with volatile types of memory (such as DRAM modules), where stored information is lost if power is removed

A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions.

1 KB = 1024 bytes.

A modem (modulator–demodulator) is a network hardware device that modulates one or more carrier wave signals to encode digital information for transmission and demodulates signals to decode the transmitted information.

computers, printers, and cables. These components are essential for creating and maintaining the network. Computers are the devices that connect to the network, printers may be shared resources within the network, and cables are used to physically connect these devices.

A modem, however, is primarily used to connect a network to an external service provider, such as an Internet Service Provider (ISP). It modulates and demodulates signals for internet connectivity. While modems are commonly used in wide area networks (WANs) or for internet access, they are not a standard component of a LAN, which is designed for local communication and resource sharing within a limited area.

The small program that starts this sequence is known as a bootstrap loader, bootstrap or boot loader. The first instructor of the bootstrap loader program of an operating system is stored in BIOS (Basic Input/Output System).

A computer virus is a malicious software program loaded onto a user’s computer without the user’s knowledge and performs malicious actions.

EEPROM (also E²PROM) stands for Electrically Erasable Programmable Read-Only Memory and is a type of non-volatile memory used in computers.

EEPROM:

Electrically erasable programmable read-only memory (EEPROM) is a special type of PROM that can be erased by exposing it to an electrical charge. Like other types of PROM, EEPROM retains its contents even when the power is turned off. Also like other types of ROM, EEPROM is not as fast as RAM.

EEPROM is similar to Flash Memory (sometimes called flash EEPROM). The principal difference is that EEPROM requires data to be written or erased one byte at a time whereas flash memory allows data to be written or erased in blocks. This makes flash memory faster.

Main memory is the primary, internal workspace in the computer, commonly known as RAM. Specifications such as 4GB, 8GB, 12GB and 16GB almost always refer to the capacity of RAM. In contrast, disk or solid state storage capacities in a computer are typically 128GB or 256GB and higher.