Which type of memory is volatile and loses its contents when power is removed?
A) RAM B) Hard disk C) ROM D) CD-ROM Answer: A Explanation: RAM requires power to retain data and is […]
Computer Memory & Storage
Computer Memory & Storage
Computer Memory & Storage
Which type of memory is non-volatile and traditionally stores permanent instructions?
A) CPU registers B) ROM C) Flash memory D) DRAM Answer: B Explanation: ROM retains stored contents when power is […]
Computer Memory & Storage
Which memory is located close to the CPU and stores frequently used data for faster access?
A) SRAM B) CPU registers C) ROM D) Cache memory Answer: D Explanation: Cache reduces the time needed to access […]
Computer Memory & Storage
Which storage device uses magnetic platters and moving read/write heads?
A) Double Data Rate B) Blu-ray Disc C) The rate at which data can be retrieved from storage D) Hard […]
Computer Memory & Storage
Which storage device uses flash memory and has no moving mechanical parts?
A) Hard disk drive B) Solid-state drive C) CD D) Disk or SSD space used to extend apparent main memory […]
Computer Memory & Storage
Which removable storage device commonly uses NAND flash memory and a USB connector?
A) USB flash drive B) ROM C) DVD D) CD Answer: A Explanation: USB flash drives provide portable non-volatile storage.
Computer Memory & Storage
Which optical disc format typically stores about 700 MB of data?
A) CD B) Blu-ray Disc C) DVD D) Floppy disk Answer: A Explanation: A standard data CD commonly holds around […]
Computer Memory & Storage
Which single-layer optical disc format commonly stores about 4.7 GB?
A) Blu-ray Disc B) CD C) DVD D) Floppy disk Answer: C Explanation: A single-layer DVD commonly stores about 4.7 […]
Computer Memory & Storage
Which optical disc format provides substantially more capacity than DVD and is used for high-definition media?
A) Blu-ray Disc B) CD C) Floppy disk D) DVD Answer: A Explanation: Blu-ray uses a shorter-wavelength laser and supports […]
Computer Memory & Storage
Which data unit is equal to two nibbles?
A) Word B) Kilobyte C) Bit D) Byte Answer: D Explanation: One nibble is 4 bits, so two nibbles equal […]