8MHz. 8088 PC / XT Apex by EPSON Model AP1001A-AB MFD. DATE: 88.07.11 SER. NO : 041357 Specifications Main Unit -------------------------------------------------------------------------------- 16-bit CPU 8088 microprocessor; 4.77MHz or 8MHz clockrate; push-button selectable Main memory 512KB; expandable to 640KB Coprocessor 8087 microprocessor (optional) for use only at 4.77MHZ 8087-2 microprocessor (optional) for use only at 8MHZ Read Only Memory (ROM) 16KB, selectable by jumper Interrupt (8259) Programmable interrupt controller, 8 interrupt levels Timer/counter (8253-5) Three programmable timer/ counters Parallel interface female connector; programmable; on system board Speaker interface Internal, controlled by timer/counter Option slots Three IBM PC-compatible,8-bit, input-output expansion slots (one used by video card) Keyboard -------------------------------------------------------------------------------- Detachable, two positions, 83 sculpted keys Layout 56-key QWERTY main keyboard, 17-key numeric pad, 10 function keys (user-definable); LEDs for lock keys Function keys Three levels (normal/shift/alternate); userdefinable Mass Storage -------------------------------------------------------------------------------- Four drives maximum two internal Standard one 5 1/4-inch, half-height floppy disk drives; double-sided, double-density 360KB storage capacity Power Supply -------------------------------------------------------------------------------- Switching type, fan ...
Keywords: apex, by, epson16-bit, CPU, 8088, microprocessor, epson, xt, cga, monitor
