Is there a way to tell whether my CPU is 64-bit or 32-bit?
The best way to find out whether your CPU is 64-bit or 32-bit is by using
lscpu command. Here is an output of
$ lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 2 Core(s) per socket: 2 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 42 Model name: Intel(R) Core(TM) i7-2640M CPU @ 2.80GHz Stepping: 7 CPU MHz: 800.078 CPU max MHz: 3500.0000 CPU min MHz: 800.0000 BogoMIPS: 5581.80 Virtualization: VT-x L1d cache: 32K L1i cache: 32K L2 cache: 256K L3 cache: 4096K NUMA node0 CPU(s): 0-3