This computer component holds the program and data that is currently being processed.
A. RAM
B. ROM
C. Bus
D. Ports
查看答案
Which of the following will not retain data after the computer is turned off?
A. DVD
B. RAM
C. ROM
D. Hard drive
Identify the four basic categories of hardware in a personal computer system.
A. Hard disk, input/output, secondary storage, and display devices
B. System unit, input/output, secondary storage, and primary storage
C. System unit, input/output, secondary storage, and communication
D. System unit, modem, RAM, and microprocessor
This hardware houses most of the electronic components that make up a computer system.
A. System unit
B. Input/output devices
C. Secondary storage
D. Communication
Which of the following are two important components of the system unit?
A. Microprocessor and memory
B. Keyboard and mouse
C. Microphone and speakers
D. Monitor and printer
微信支付 
支付宝支付